PLEASE HELP!!!!!!!!!!!!!!!!!!!

PLEASE HELP!!!!!!!!!!!!!!!!!!!

Answers

Answer 1

Answer:

C

Step-by-step explanation:

x² + 6x - 7 = 0 ( add 7 to both sides )

x² + 6x = 7

to complete the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(3)x + 9 = 7 + 9

(x + 3)² = 16


Related Questions

Drag each label to the correct location in the equation. not all tiles will be used.
the density of mercury is 13.6 grams per cubic centimeter. complete the steps for converting 13.6 g/cm3 to kg/m3. (1 kg = 1,000 g, 1 m3 = 106 cm3)
13,600 10^6 1,360 1 g 1 kg 1 m3
13.6g/cm^3 x ( )/1000g x ( ) cm^3/( ) = ( ) kg/m^3

Answers

As per the given equation, the resulting conversion is written as,

13.6g/cm³ x 1kg/1000 x 10⁶cm³/m³ = 13600kg/m³

Equation:

An equation consist the value of the variable, numbers and the constants.

Given,

Here we have the density of mercury is 13.6 grams per cubic centimeter.

Now, we have to convert this one into kg/m3.

Here the process of conversion of  13.6 g/cm3 to kg/m3

We know that, 1 Kg of weight is equal to 1000 grams of weight

Then it can be written as

=> 1 g = 1 kg/1000

Then the first blank (numerator) will be filled with 1 Kg

Similarly, 1 meter is equal to 100 centimeter

So, for cubic unit it can be written as,

=> 1 cm³ = 1m³/100³

It can be simplified as,

=> 1 cm³ = 1m³/10⁶

Now, the second blank (numerator) will be filled with 10⁶

Finally, the third blank (denominator) will be filled with 1m³

Therefore, the last blank will be 13600

Hence, we have find the all the values on the blanks.

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At approximately what latitude is the sun directly overhead at noon on November 24?

Help this is due tomorrow and I have no idea how to do it I'll give 100 points

Answers

Answer:

23.5 degrees north

Step-by-step explanation:

A laptop computer originally priced at $2100 now ell for $2,200. What i the percent of increae?

Answers

The percent of increase is 4.761 %

Given :

A laptop computer originally priced at $2100 now and sell for $2,200.

Percentage :

In mathematics, a percentage is a number or ratio that can be expressed as a fraction of 100.

If we have to calculate percent of a number, divide the number by the whole and multiply by 100.

Difference = sell price - original price

= 2200 - 2100

= 100

Percent of increase = 100 * 100 / 2100

= 100 * 1 / 21

= 100 / 21

= 4.761 %

Therefore 4.761 % increase in percent.

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A lione ha 4 cub that weigh 1. 7 kg, 2. 1 kg, 3 kg, and 2. 7 kg. Each cub eat 1. 25 kg of food a day. How much food will be needed to feed all the cub for one year?

Answers

The food will be needed to feed all the cub for one year is 1825 kg.

Given :

A lion ha 4 cubs that weigh 1. 7 kg, 2. 1 kg, 3 kg, and 2. 7 kg. Each cub eat 1. 25 kg of food a day.

one cub eats food = 1.25 kg

4 cubs eats food = 1.25 kg * 4

= 125 / 100 * 4 kg

= 500 / 100 kg

= 5 kg

5 kg for one day.

cub eats food for one year = 365 * 5 kg

= 1825 kg.

Therefore the food will be needed to feed all the cub for one year is 1825 kg.

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s is inversely proportional to t.

When s = 0.9, t = 2

Work out s when t = 0.6

Answers

Answer:

s = 3

Step-by-step explanation:

We model the proportion with the equation:

[tex]s =\frac{k}{t}[/tex]

We have s and t, but we need to find the k (i.e., the constant of proportionality) by plugging in the s and t we already have:

[tex]0.9=\frac{k}{2}\\ 1.8=k\\s=\frac{1.8}{t}[/tex]

To find s when t = 0.6, we simply plug in 0.6 for t in last equation we found with k:

[tex]s=\frac{1.8}{0.6}\\ s=3[/tex]

Please help geomotry

Answers

Figure D was reflected over the y axis and translated 4 units upwards to form figure E

What is transformation?

Transformation is the movement of a point from its initial location to a new location. Types of transformations are reflection, translation, rotation and dilation.

Rigid transformation preserves the shape and size of the figure. Reflection, translation, rotation are rigid transformations.

According to the given question:

On translating the figure D over y-axis, the figure E will be 4 units above.

Therefore,  Figure D was reflected over the y axis and translated 4 units upwards to form figure E.

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Jon bought 6 gallons of gas for $24
A( Find the cost of 1 gallon
B( Find the cost of 12 gallons

Answers

Answer:

A/ $4 for 1 gallon

B/ $48

Step-by-step explanation:

Take 24 divided by 6 = $4 per gallon

Then take 4 times 12 = $48 for 12 gallons

If you can please give me a Brainliest, thank you!

i am wondering what 72b=9 is

Answers

1/8, because 9/72=0.125 which is equal to 1/8

Answer:

1/8

Step-by-step explanation:

9/72 = 1/8

If M7=28, what is M14?

Answers

Answer:

56

Step-by-step explanation:

divide 7 into 28 which is 4.

Then substitute 4 for M so 4 times 14 which is 56.

Find the difference between the actual quotient and the etimated quotient of 78,070÷37. (Dividend i rounded off to nearet thouand and divior to nearet ten)

Answers

The actual quotient and the estimated quotient of 78,070÷37 is 2110 , so the difference between them is 0.

On dividing 78,070 by 37 ,

we get

78,070 /37

=2110

Since , the number gets divided completely

therefore the estimated quotient and the actual quotient will be 2110.

We first round the dividend and the divisor to the closest tens, hundreds, or thousands, and then divide the rounded figures to approximate the quotient. When the divisor in a division sum has two or more digits, it is helpful to first estimate the quotient before attempting to discover the exact number.

The outcome of dividing two numbers is known as the quotient. Divided divisor = quotient + remainder is the formula for expressing the terms of division.

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please help its due tomorrow and im failing the class

Answers

Answer:

the slope is -1/9

Step-by-step explanation:

The first thing to do is use the slope formula y^1 - y^2 over x^1 - x^2. You substitute each value into these variables and solve, which will then give you a negative slope of -1/9.

hope this helps!! :3

Cara wants to build an 80 foot long rectangular sheep pen in back of her barn. If she bought 180 feet of fencing and used her barn wall as one side of the pen equaling the width, what would be the area of the sheep pen?.

Answers

180 ft2 be the area of the rectangular  sheep pen .

What is rectangle?

A quadrilateral is a shape with two opposed sides that are equal and parallel.

                     There are four 90-degree angles on its four sides, making it a four-sided polygon. The shape of a rectangle is two dimensional.

Length of the sheep pen =60ft

150 ft of fencing bought

One side of rectangular sheep pen is covered with barn which is equaling the  width

perimeter of rectangular sheep pen = 2(length +width)

length need to covered is 2 Length+ width

150 =2 length+width

150 = 2 x60 +width

150-120= width

30= width

Area of rectangle = 60 x 30

                         =      180 ft2

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i need help with this ​

Answers

Rounding to the nearest tenth, we get that the length of KN is approximately 21.8.

What is a Pythagoras theorem?

The theorem states that in a right triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides. This relationship is often expressed in the form of the equation:

a² + b² = c²

To find the length of KN in this right triangle, you can use the Pythagorean theorem. This theorem states that in a right triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides.

In this case, the hypotenuse is KL, and the other two sides are KM and KN. The theorem can be written as:

KL² = KM² + KN²

Substituting the given values, we get:

24² = 10² + KN²

Solving for KN, we get:

KN² = 24² - 10²

= 576 - 100

= 476

KN = √476

= 21.84

Hence, rounding to the nearest tenth, we get that the length of KN is approximately 21.8.

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Rounding to the nearest tenth, we get that the length of KN is approximately 21.8.

What is a Pythagoras theorem?

The theorem states that in a right triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides. This relationship is often expressed in the form of the equation:

a² + b² = c²

To find the length of KN in this right triangle, you can use the Pythagorean theorem. This theorem states that in a right triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides.

In this case, the hypotenuse is KL, and the other two sides are KM and KN. The theorem can be written as:

KL² = KM² + KN²

Substituting the given values, we get:

24² = 10² + KN²

Solving for KN, we get:

KN² = 24² - 10²

= 576 - 100

= 476

KN = √476

= 21.84

Hence, rounding to the nearest tenth, we get that the length of KN is approximately 21.8.

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Hi can someone solve this with steps?

Answers

Answer:

42

Step-by-step explanation:

Given function:

[tex]f(x)=4x^4-2x^3-3x^2+3x[/tex]

Use the method of synthetic substitution to find the value of the function when x = 2.

Place the value of x in the left box and write the coefficients of the function in descending order, remembering to write a zero for the coefficient of any missing term.  

(As there is no constant term in this function, the last coefficient should be written as zero).

       [tex]4x^4-2x^3-3x^2+3x[/tex]

[tex]\begin{array}{c|ccccc}2&4&\:\:-2&\;\;-3&\;\:\:\:\:3&\;\;0\\\cline{1-1} \end{array}[/tex]

Bring the leading coefficient down:

[tex]\begin{array}{c|ccccc}2 &4&-2&-3&3&0\\\cline{1-1}&\downarrow &&&\\\cline{2-6}&4\end{array}[/tex]

Multiply the number you brought down with the number in the box and put the result in the next column (under the -2):

[tex]\begin{array}{c|rrrrr}2 &4&-2&-3&3&0\\\cline{1-1}&\downarrow &8&&\\\cline{2-6}&4\end{array}[/tex]

Add the two numbers in the second column together and put the result under them in the bottom row:

[tex]\begin{array}{c|rrrrr}2 &4&-2&-3&3&0\\\cline{1-1}&\downarrow &8&&\\\cline{2-6}&4&6\end{array}[/tex]

Repeat:

[tex]\begin{array}{c|rrrrr}2 &4&-2&-3&3&0\\\cline{1-1}&\downarrow &8&12&\\\cline{2-6}&4&6&9\end{array}[/tex]

[tex]\begin{array}{c|rrrrr}2 &4&-2&-3&3&0\\\cline{1-1}&\downarrow &8&12&18\\\cline{2-6}&4&6&9&21\end{array}[/tex]

[tex]\begin{array}{c|rrrrr}2 &4&-2&-3&3&0\\\cline{1-1}&\downarrow &8&12&18&42\\\cline{2-6}&4&6&9&21&42\end{array}[/tex]

The last value, 42, is the value of the function when x is 2.

Therefore,

[tex]f(2)=4x^4-2x^3-3x^2+3x=42[/tex]

Ahley' chocolate bar i 72% cocoa. If the weight of the chocolate bar i 51 gram, how many gram of cocoa doe it contain?

Answers

Answer: 36.72 G

Step-by-step explanation:

I sell

Circle a ha a diameter of 9cm. Cirlce b ha a radiu of 5 cm. 1. Which circle ha a larger circumference? 2. About how many centimeter larger i it

Answers

Circle B will have larger circumference by 3.14 centimeter

What is Circumference of Circle ?

The distance along a circle's perimeter is referred to as its circumference. In other words, the circumference of a circle is equal to the length of a straight line formed by opening up the circle.

The circumference of the circle is = 2пr where r is radius

According to the information

Circle A has diameter = 9 cm

Radius of circle A = [tex]\frac{9}{2}[/tex] cm

Circumference of Circle A = 2пr

                                            = 2 × 22/7 × 9/2

                                            = 28.28 centimeter  

Circle B has radius = 5 cm

Circumference of circle B = 2 × 22/7 × 5

                                             = 31.42 centimeter

Circle B will have larger circumference by 3.14 centimeter

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Please name these last two shapes

Answers

Answer:

Step-by-step explanation:

Square, Irregular shape

(1). 7/10 - 2/5
(2). 3/4 + 5/6
(3). 17/9 - 11/12
(4). 2/3 + 1/4 - 7/12

Answers

Answer:

1. 3/10

2. 19/12

3. 35/36

4. 1/3

Step-by-step explanation:

A university will spend Atmos 6000 by monitors and keyboards for computer lab each monitor will cost $200 and each keyboard will cost $25 which inequality represents all possible combinations of x the number of monitors and y the number of keyboards the university can buy for the computer lab?

Answers

Answer:

Answer: 200x + 25y <= 6000

Step-by-step explanation:

question is in the screenshot

Answers

The base length of the isosceles triangle is 23. Therefore, the correct option is C.

How to find the side of an isosceles triangle?

An isosceles triangle is a triangle with (at least) two equal sides. It also has two angles equal to each other.

The base angle of an isosceles triangle is equal in length.

The legs of an isosceles triangle are equal. Therefore,

3x - 1 = - 3x + 41

3x + 3x = 41 + 1

6x = 42

divide both sides by 6

x = 42  /6

x = 7

Let's find the length of the base side.

Therefore,

4x - 5

where

x = 7

4(7) - 5 = 28 - 5 = 23

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Bennett has 107 photographs to place in the school yearbook. He will put the same number of photos on each of the 13 pages. If he can put 4 pictures in a row, how many photographs will not be placed in the yearbook?

Answers

Answer:

2 rows on each page equals 104, which means that there would be 3 non-used photos

Step-by-step explanation:

I don’t feel like typing

Answers

Answer:

A

Step-by-step explanation:

mass / volume

m/v

Answer: d = m/V

Step-by-step explanation: density is the mass divided by volume or d= m/V

1. please Prove that the angle that an are of a circle subtends at the centre is twice that which it substends at any point on the remaining part of the circumfrence.​

Answers

To prove that the angle that an arc of a circle subtends at the center is twice that which it subtends at any point on the remaining part of the circumference, we will use the definition of an arc and the definition of an angle.

An arc is a portion of the circumference of a circle. If we draw an arc with central angle A, the arc will subtend an angle A at the center of the circle.

An angle is a measure of rotation. If we draw a radius from the center of the circle to any point on the arc, the angle formed by the radius and the arc will be half of the angle A.

Since the arc subtends an angle A at the center of the circle, and the angle formed by the radius and the arc is half of the angle A, it follows that the angle that an arc of a circle subtends at the center is twice that which it subtends at any point on the remaining part of the circumference.

This can be formally stated as follows:

For any arc of a circle with central angle A, the angle that the arc subtends at the center of the circle is 2 times the angle that the arc subtends at any point on the remaining part of the circumference.

This conclusion holds true regardless of the size of the arc or the size of the circle.



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A certain state uses the following progressive tax rate for calculating individual income tax: Progressive Income Range ($) Tax Rate 0 - 10,000 10,001 - 50,000 50,001 - 100,000 3% 5% 5.5% Calculate the state income tax owed on a $90,000 per year salary. tax = $[ ? ] Round your answer to the nearest whole dollar amount.

Answers

The required state income tax owed on a $90,000 per year salary is $4950.

Given that,
A table shows the income tax owed by the state on the particularar salary,
Income Range ($)      Tax Rate

0 - 10,000                     3%
10,001 - 50,000             5%
50,001 - 100,000           5.5%

What is percentage?

The percentage is the ratio of the composition of matter to the overall composition of matter multiplied by 100.

Here,
on $90,000
Tax owed = 5.5% of 90000, because this salary lies in the segment 50,001 - 100,000.
Tax owed = 0.055[90000] = $4950

Thus, the required state income tax owed on a $90,000 per year salary is $4950.

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1.03 of 0.054 is what number?

Answers

Answer:

1.03% of 0.054=0.0005562

I think it’s 0.05562

A bread is cut into 10 equal parts. How many children can share all parts of the bread if each child takes 0.2 parts​

Answers

5 children can share all parts of the bread if each child takes 0.2 parts.

What are Fractions?

Fraction are numbers of the form [tex]\frac{a}{b}[/tex] where a and b are real numbers. It is represented as a portion or part of a whole.

The number on the top is called numerator and the number on the bottom is called denominator.

There are 10 equal parts of bread and each child takes 0.2 part.

Total parts of the bread = 10

Part each child takes = 0.2 = [tex]\frac{2}{10}[/tex]

2 parts out of 10 are taken by each child.

Remaining are  [tex]\frac{8}{10}[/tex] parts.

[tex]\frac{2}{10}[/tex] × 4 =  [tex]\frac{8}{10}[/tex]

Remaining parts can be shared by 4 children.

Hence number of children who can share the bread if each takes 0.2 parts = 5

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Dee chose A as the correct answer. What was her error? Answer in a complete sentence.

Answers

Number of square feet of wall painted in 1 hour is 243 square feet. Therefore, option C is the correct answer.

Given that, it takes Zach 10 minutes to paint [tex]40\frac{1}{2}[/tex] square feet of his bedroom wall.

What is the unitary method?

The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.

Here,  square feet = 40.5 square feet

Rate at which he paints the wall =40.5/10

= 4.05 square feet per minute

As we know 1 hour =60 minutes

Now, number of square feet

= 4.05×60

= 243 square feet

Number of square feet of wall painted in 1 hour is 243 square feet. Therefore, option C is the correct answer.

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A middle chool took all 6th grade tudent on a field trip to ee a ballet. The tudent filled 702 eat leaving 35% vacant how manny eat were in the theater

Answers

There were 1080 seats in the theater.

In this question, we have been given that the 6th grade students went on a field trip to see a ballet.

The students filled 702 seats leaving 35% vacant.

We need to find the total seats in the theater.

Let there were n seats in the theater.

Given that 35 percent of total seats were vacant.

So, we get an equation,

702 + (35% of n) = n

702 + 0.35n = n

(1 - 0.35)n = 702

0.65n = 702

n = 1080

Therefore, the total seats in the theater = 1080

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the sum of 5 and a number x
show work

Answers

Answer:

x+5 or 5+x

Step-by-step explanation:

It seems we are looking for a math expression that is the same as English expression you wrote.The sum is what we get when we add numbers. Therefore, we could restate the English expression as what do we get when we add 5 to the number x? While we do not know what specific number x represents, we do know that if we add 5 to the number x we get 5 plus x. Now the question can be restated as, "How do we write 5 plus the number x?" Do you know the answer now? Does 5 + x sound right? How about x + 5? Both of these expressions are correct as they both represent the sum of 5 and the number x.

Indigo launches a toy rocket from a platform. The height of the rocket in feet is given by h(t)=-16t² + 80t + 96 where t represents the time in seconds after launch. What is the rocket's greatest height?​

Answers

The calculated value of the rocket's greatest height is 196 feet

Calculating the rocket's greatest height?​

From the question, we have the following parameters that can be used in our computation:

height function,  h(t) =-16t² + 80t + 96

So, we have

h(t) =-16t² + 80t + 96

The maximum value of t is calculated as

t = -b/2a

So, we have

t = -80/(2 * -16)

Evaluate

t = 2.5

The rocket's greatest height is at t = 2.5

So, we have

h(2.5) =-16(2.5)² + 80(2.5) + 96

Evaluate

h(2.5) = 196

Hence, the rocket's greatest height is 196 feet

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