Name the figure that Enrico drew below. (Lesson 10.1)​

Answer:

81(x + 2y)(x - 2y)

Step-by-step explanation:

[tex]81 {x}^{2} - 324 {y}^{2} \\ \\ = {(9x)}^{2} - {(18y)}^{2} \\ \\ = (9x + 18y)(9x - 18y) \\ \\ = 9(x + 2y) \times 9(x - 2y) \\ \\ = 81(x + 2y)(x - 2y)[/tex]

Answer:

It could be either of two ways:

8

x

+

10

or

8

(

x

+

10

)

Explanation:

The wording is a little unclear because this could be done in two ways:

8

x

+

10

or

8

(

x

+

10

)

The first one is "the product of 8 and a number, increased by 10"

The second is "the product of 8, and a number increased by 10"

The one you might write depends on how you say the statement!

In either case, when you read the phrase "a number" in algebra, you make this the variable - whatever letter you prefer (does not have to be

x

!)

Step-by-step explanation:

The verbal statement of the given algebraic expression gives us; 5(q + 6) = 88

Now, we are told that the product of 5 and q increased by 6 yields 88. Thus, the expression gives us;

5(q + 6) = 88

Therefore we can conclude and say that the verbal statement of the algebraic expression gives us;

5(q + 6) = 88

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Answer:

s = 3*r

Step-by-step explanation:

sold = 3(people) * r(raffle tickets)

Answer:

-1.25

Step-by-step explanation:

Equation: y = -1.25x - 3.

Answer:

a) 100

b) Mango

c) Shop A = 90 and Shop B= 80

d) Shop B

e) chocolate

f) 330 ice-creams

g) 30

h) Mango

Your welcome~

Answer:

Step-by-step explanation:

y= -5x _

y=-7x-14

—————— (y-y=-5x-(-7x)-14)....

0=-2x-14 => x=-7 => y=-5*(-7)=35

Answer: x = -7 and y = 35

Step-by-step explanation: STEPS USING SUBSTITUTION

y= -5x

y= - 7x - 14

consider the first equation. Add 5x to both sides.

y + 5x = 0

consider the second equation. Add 7x to both sides

y + 7x = -14

to solve a pair of equations using substitution, first solves one of the equations for one of the variables then substitute the result for that variable in the other equation. and so goes on

Answer:

He will get there in time

Step-by-step explanation:

Superman speed = 20miles per second and there are 60 seconds per minute, so Superman's speed is 1,200 miles per minute

1,200miles/minute * 5 minutes = 6,000 miles

6,000 miles > 5,000 miles so our boi will make it within 5 minutes

Answer:

A, B, and C

Step-by-step explanation:

The solution is, The true statements are F and E.

i.e.  F. The x-intercept is (1,0).

E. It is increasing.

The logarithm can be stated as the inverse function to exponentiation. That means the logarithm of a number x to the base b is the exponent to which b must be raised, to produce x.

here, we have,

We need to graph the log function. F(x) = log6x

Domain: x>0 All real number greater than 0.

Range: All real number.

y-intercept: Put x=0 and solve for y. (Does not exist)

y-intercept: Put y=0 and solve for x. (1,0)

Log function is increasing function.

F is true. (It is increasing)

D is False. (Because Range is all real number)

E is true. (x-intercept (1,0))

A is false. (It is decreasing.)

B is false. (The y-intercept is (0, 6))

C is false. (Domain is x>0)

Hence, F and E are true.

Learn more about log functions, click;

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#SPJ7

4 units

Step-by-step explanation:

I did the quiz, hope it helped! <3

Answer:44 is closest to the nearest tenth if not try 35

Step-by-step explanation:35 Heather farm so it just needs five and it will get to 10 because it goes 30 31 32 33 34 35

Answer:

Step-by-step explanation:

Write 1 million first 1 , 000 , 000

Now add the 80                    80

Total                       1,000,080

It's always a good idea to break a problem down into smaller parts. It's easier to handle that way.                              

Answer:

1. At Kohls Mrs. House would pay $45.00 because %25 = $15 so I just subtracted %.60.00-$15.00.

2.((Number × Percent/100)) + Number

((38 × 15/100)) + 38

5.7 + 38

= 43.7

3. I say that Mrs. House should go-to target. And just by $1.30.

At Kohls, the speaker would be at $45.00.

At target, the speaker would be at $43.70.

$45.00 - $43.70 = $1.30

Step-by-step explanation:

Answer:

2.22

Step-by-step explanation:

2 + 0.22

2.22

None of them are equivalent to 2 + 0.22.

[tex]\\ \tt\hookrightarrow 2+0.22[/tex]

[tex]\\ \tt\hookrightarrow 2+22/100[/tex]

[tex]\\ \tt\hookrightarrow 200+22/100[/tex]

[tex]\\ \tt\hookrightarrow 222/100[/tex]

[tex]\\ \tt\hookrightarrow 2.22[/tex]

Answer:

A.factor the left side of the equation

sorry but to tell u the answer, I need to know this

is there an equal sign between 9 and 10 or it's just a minus sign?

I mean if it is a minus sign the first thing to do to solve the equation is 9-10 which gives you -1. but if there is an equal sign the first step is to subtract 10 from both sides of the equation which means your answer will be option B.

Answer:

for 7 its A, B, E. For 8 its D

Answer:

Step-by-step explanation:

One vertex is given (5, 4).

The side of the square is 3. So other vertices may have ± 3 difference on either one coordinate.

Possible options are:

Point M is 6 units away from the origin.

Possible (x, y) coordinates have the sum of squares equal to 6².

The only correct option is D. (0, 6)

The Volume of crystals is 160 mm³ while the area of the base is 20 mm².

Volume is the amount of space occupied by a three dimensional shape or object.

Area of triangle = (1/2) * DF * height

Height = 10 - 6 = 4 mm, DF = AC = AB + BC = 2 + 3 = 5 mm

Area of triangle = (1/2) * 5 * 4 = 10 mm²

Volume of triangle prism = Area of triangle * AG = 10 * 4 = 40 mm³

Volume of rectangular prism = A to F * AC * AG = 6 * 5 * 4 = 120 mm³

Volume of crystals = 120 + 40 = 160 mm³

Area of base = AC * AG = 5 * 4 = 20 mm²

The Volume of crystals is 160 mm³ while the area of the base is 20 mm².

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Answer:

45π

Step-by-step explanation:

To find the area of a circle the formula is πr².

To find the shaded region we will subtract the area of the small circle from the area of the big circle.

Area(big circle)=π9²=81π

Area(small circle)=π6²=36π

81π-36π= 45π

Answer:

24 square feet

Step-by-step explanation:

There are four "triangles" of the rhombus. If you find the area of each triangle by multiplying the height by the width and dividing by two, you get 6. You then multiply that by 4 to get 24.

Answer:

Step-by-step explanation:

The second equation tells you ...

  ♧ = 21/3 = 7

The third equation tells you ...

  ♢ = 20 -2(7) = 6

Then the first equation tells you ...

  ♤ = 15 -7 -6 = 2

Finally, the last equation tells you ...

  ♡ = 13 -6 -2 = 5

Answer

Club = 7

Diamond = 6

Spade = 2

Heart = 5

Step-by-step explanation

Here it shows that 1 club + 1 diamond + 1 spade is equal to 15. Ok, let's get back to that one later.

In the next hint it shows that 3 clubs equals 21. So, in order to get the value of the club, divide 21 by 3, and you'll get 7. This means that 7 is the value of the club.

Now on to the third hint. Here it shows that 1 diamond plus 2 clubs are equal to 20. We already got the value of the club, which is 7, so add 7+7 and you'll get 14. Then, subtract 14 from 20 and you'll get the value of the diamond, which is 6.

Finally, the fourth hint. Here it shows that 1 diamond + 1 heart + 1 spade = 13. So, inorder to get the value of the heart, add the value of the diamond and the spade, which sums up to 8. Then subtract 8 from 13 and you'll get the value of the heart, which is 5.

Answer:

50% decease

Step-by-step explanation:

A change from 8 to 4 represents a negative change (decrease) of -50%

Use the formula found below on this webpage to find the percent change by replacing the given values:

Percent = New - Old/Old x 100

Percent = 4-8/8 x 100

Where: 8 is the old value and 4 is the new value. In this case we have a negative change (decrease) of -50 percent because the new value is smaller than the old value.

Hence, 50% decrease

Check Answer:

8 x 50% = 4

8 - 4 = 4

Hence, 50% decrease is the correct answer.

[RevyBreeze]

Answer:

x=37

Step-by-step explanation:

Area of triangle = x+x+x=180
= 78+65+x=180
=143+x=180
=x=180-143 (bring 143 to the otherside)
x=37

In the given figure, We are to find the respective value of x .

Solution :

We know that,

Sum of all the angles of the triangle = 180°

So,

[tex] \qquad \sf \dashrightarrow{ x {}^{ \circ} + 65 ^{ \circ} +78 ^{ \circ} = 180}[/tex]

[tex] \qquad \sf \dashrightarrow{ x ^{ \circ} + 143^{ \circ} = 180^{ \circ}}[/tex]

[tex] \qquad \sf \dashrightarrow{ x ^{ \circ} = 180^{ \circ}} - 143^{ \circ}[/tex]

[tex] \qquad \bf \dashrightarrow{ x ^{ \circ} = 37^{ \circ}}[/tex]

Therefore, The value of x is 37°

Answer:

please attach a photo to your question

Answer:

1072

Step-by-step explanation:

the angle is 108, so x10 then minus 8. when theres a letter next to the number it means to multiply it, so get the answer; then multiply it. example:
right angle 10x so 90x10. 900. hope this helps!

Answer:

Rounded answer: 9.4 in

Step-by-step explanation:

Circumference: 2 times radius times pi

Or in this case: Diameter times pi

Therefore, 3 times pi

= 9.4247779607694

Or if rounded

= 9.4

Answer:

6

i started with 9 and counted up untell i got to 15

Step-by-step explanation:

I assume we are simplifying

1) -6k+7k = k

2) 12r-8-12 = 12r-20

3) n-10+9n-3 = 10n-13

4) -4x-10x = -14x

Answer:

1.6 < x < 9.6

Step-by-step explanation:

Given 2 sides of a triangle then the third side x is in the range

difference of 2 sides < x < sum of 2 sides , that is

5.6 - 4 < x < 5.6 + 4

1.6 < x < 9.6

Answer:

  x = 117

Step-by-step explanation:

The sum of the interior angles of a pentagon is 180°(5 -2) = 540°. This means ...

  x +59 +138 +140 +86 = 540

  x +423 = 540 . . . simplify

  x = 117 . . . . . . . . subtract 117

Answer:

11/61

Step-by-step explanation:

from trigonometry ratio sin w= Opp/hyp

opp = 11

hyp =61

therefore sin w =11/61