Mathematics High School

Please help me with this math problem!! Will give brainliest if correct! NO links please!

Answers

Answer 1

Answer:

equation: sin 20 = 15/x

x=43.86

Step-by-step explanation:

sin = opposite over hypotenuse = 15/x from the corner with angle 20

Related Questions

2

math

pls help geniuses!!
———

Answers

Answer:

( -2, 9 )

= C

Step-by-step explanation:

Answer pls! No spam!

Answers

Answer:

Check the attachment.

Just a bit more.. I need it at around 70, it’s at 60 right now.

Answers

Answer:

( -5, 4 )

Step-by-step explanation:

(y = x + 9) 2

y = -2x - 6

2y= 2x + 18

y = -2x - 6

3y = 12

y = 4

4 = x + 9

-9 - 9

-5 = x

It’s kinda new to me

Answers

Step-by-step explanation:

B) False

7:5 is reciprocal of 5:7

The Sugar Sweet Company is going to transport its sugar to market. It will cost $6500 to rent trucks plus $250 for each ton of sugar transported. The total cost, C (in dollars), for transporting n tons is given by the following.
c=6500+250n
1.If the total cost is $12,250, how many tons is the company transporting?
2.What is the total cost of transporting 14 tons?

Answers

Answer:

An equation that relates cost to the amount of sugar S C = 6500 + 250s the total cost is $1120 The total cost of transporting 19 tons of sugar at 250 each C = total cost C =6500 + 250(19) total cost = 6500 + 4750 = 11250

Step-by-step explanation:

what is the name of a chord that subtends two angles?

Answers

Answer:

The angle made by the line segments from the chord's endpoints to the centre or at any point on the circle, then the angle formed is called the angle subtended by the chord at a point

Step-by-step explanation:

Answer:

Step-by-step explanation:

I believe you mean the angle subtended by two chords. The angle is called an inscribed angle

Two more than eleven times a number is equal to 24. What is the number?
Group of answer choices

2
4
6
9

Answers

The answer is 2
2 x 11 = 22
22 + 2 = 24

plz help help plz plz plz plz

Answers

Answer:a=70

c=110

b=110

Step-by-step explanation:

The solution is in the attached file filatache

Answer:

A = 70

B = 110

C = 110

Step-by-step explanation:

A is opposite of the 70 degree angle, and vertical angles are equal, so it is also 70 degrees.

A straight line is 180 degrees, so 70 + B = 180, making B = 110 degrees.

Both of these rules apply for C, making it also 110 degrees.

HELP PLEASE~~~
ill give brainlyest

Answers

Answer:

the correct answer is 5 for the first one and 20 for the second one

Step-by-step explanation:

hope this helps

In an experiment to learn whether Substance M can help restore memory, the brains of 20 rats were treated to damage their memories. First, the rats were trained to run a maze. After a day, 10 rats (determined at random) were given M and 7 of them succeeded in the maze. Only 2 of the 10 control rats were successful. The two-sample z test for "no difference" against "a significantly higher proportion of the M group succeeds"
a) should not be used because the Large Counts condition is violated.
b) gives z = 2.25, P < 0.02
c) gives z = 2.60, P < 0.005
d) should not be used because the Random condition is violated
e) gives z = 2.25, P < 0.04 but not < 0.02

Answers

The number of rats in the sample are less than 30, therefore, according

to the central limit theorem, cannot approximate the population.

Response:

a) Should not be used because the Large Counts Condition is violated

Which condition are necessary for the hypothesis test?

The proportion of the rats given M that succeeded, [tex]\hat p_1[/tex] = 7 ÷ 10 = 0.7

The proportion of the control rats that succeeded, [tex]\hat p_2[/tex] = 2 ÷ 10 = 0.2

H₀: [tex]\hat p_1[/tex] = [tex]\hat p_2[/tex]

Hₐ: [tex]\hat p_1[/tex] > [tex]\hat p_2[/tex]

The z-test formula for the difference between two proportion is given as follows;

[tex]Z= \mathbf{\dfrac{\hat{p}_1-\hat{p}_2}{\sqrt{\hat{p} \cdot (1-\hat{p})\left (\dfrac{1}{n_{1}}+\dfrac{1}{n_{2}} \right )}}}[/tex]

Where;

[tex]\hat p = \dfrac{7 + 2}{10 + 10} = 0.45[/tex]

[tex]Z=\dfrac{0.7-0.2}{\sqrt{0.45\times (1-0.45) \times \left (\dfrac{1}{10}+\dfrac{1}{10} \right )}} \approx \mathbf{ 2.25}[/tex]

p = 1 - p(z < 2.25) = 1 - 0.9878 = 0.0122

However, the number of rats in the sample, n are less than 30

Therefore;

The sample is not large enough for the test compared to the population,

and for a normal approximation which gives;

a) Should not be used because the Large Counts Condition is violated

Learn more about normal distribution here:

https://brainly.com/question/15805498

For each value of u, determine whether it is a solution to - 7+5u < 33.

Answers

Answer:

All in order:

YES

Step-by-step explanation:

-7 + 5(-6) < 33 YES

-7 + 5(8) < 33 NO

-7 + 5(9) < 33 NO

-7 + 5(-4) < 33 YES

Need number 5 really badly

Answers

a = b

b = 180° - 130° = 50°

so a = 50°

In Exercises 25–28, the red figure is the image of the
blue figure after a dilation with center C. Find the
scale factor of the dilation. Then find the value of
the variable.

Answers

Dilation involves changing the size of a shape

The scale factor is 2, and the value of the variable is 6

How to determine the scale factor

From the figure, the scale factor is the quotient of the red figure and the blue figure.

So, we have:

[tex]k = \frac{28}{14}[/tex]

Divide

[tex]k = 2[/tex]

The value of the variable (n) is then calculated as:

[tex]n * k = 12[/tex]

This gives

[tex]n * 2 = 12[/tex]

Divide both sides by 2

[tex]n = 6[/tex]

Hence, the scale factor is 2, and the value of the variable is 6

Answers

Answer:

it will take Isaac 13.3... mins and 9 mins for Juanita

Step-by-step explanation:

I think

Answer:

7.3 minutes

Step-by-step explanation:

Isaac: 3 apples/minute

Juanita: 5 apples / 2 minutes = 2.5 apples/minute

Together: 5.5 apples/minute

40 apples / (5.5 apples/minutes) = 7.3 minutes

help pls math question

Answers

Step-by-step explanation:

Florence Nightingale OM RRC DStJ was an English social reformer, statistician and the founder of modern nursing. Nightingale came to prominence while serving as a manager and trainer of nurses during the Crimean War, in which she organised care for wounded soldiers at Constantinople.

Charlie is having a miced fruit salad as a dessert he sort all the different pieces of fruits that he find finds in the salad and then shows these values on circle graph. Help me please urgently

Answers

Answer:

D. 1/4

Step-by-step explanation:

Total pieces of salad in the circle:

7 + 6 + 3 + 2 + 6 = 24

Orange pieces are 6 out of 24:

6/24 = 1/4

Total pieces

6+2+6+3+724

Orange fraction

6/241/4

Brainliest for correct answer !!
Find h^-1 (x)

Answers

Answer:

[tex]\frac{3x + 1}{5}[/tex]

Step-by-step explanation:

y = [tex]\frac{5x-1}{3}[/tex]

make x the subject

3y = 5x - 1

3y + 1 = 5x

[tex]\frac{3y + 1}{5}[/tex] = x

now switch x with y
so,

[tex]\frac{3x + 1}{5}[/tex] (ans)

Evaluate the expression below for x = 4 and y = 6: x2+ 2 (x+ y)

Answers

Answer:

The answer is 36

Step-by-step explanation:

Given;x² + 2(x + y)x = 4y = 6To Find;The value of x² + 2(x + y)

Now, Evaluate

x² + 2(x + y)

(4)² + 2(4 + 6)

16 + 2(10)

16 + 20 = 36

Thus, The answer is 36

-TheUnknownScientist 72

Answer:

the answer is 36

hope it's helpful

What is the factored form of 125x6 – 8? (5x2 – 2)(25x4 – 10x2 – 4) (5x2 – 2)(25x4 – 10x2 4) (5x2 – 2)(25x4 10x2 4) (5x2 – 2)(25x4 10x2 – 4).

Answers

Factor when divides the function the remainder is zero. The factorized form of the function f(x)=125x⁶-8 is (5x²-2)(25x⁴ + 10x²+4).

What is a factor?

A factor of a function is a factor which when multiplied by another the result is the function itself.

We know that in order to factorize a function, we need to take the common terms out from the expression,

[tex]f(x)=125x^6-8[/tex]

The given function can be written as,

[tex]f(x)=125x^6-8\\\\f(x)=5^3x^6-2^3\\\\f(x)=(5x^2)^3-2^3[/tex]

Now, we will use the algebraic property to solve the function.

[tex]f(x)=(5x^2)^3-2^3\\\\f(x)=(5x^2-2)(25x^4+10x^2+2^2)\\\\f(x)=(5x^2-2)(25x^4+10x^2+4)[/tex]

Hence, the factorized form of the function f(x)=125x⁶-8 is (5x²-2)(25x⁴ + 10x²+4).

Learn more about Factors:

https://brainly.com/question/6810544

Answer:

Step-by-step explanation:

a room to be carpeted measures 16 feet in length and 12 feet in width the carpet costs 30 per square yard what is the total cost

Answers

A room area

Lenght × Width = 16 × 12

= 192 square feet

1 square yard = 9 square feet

so 1 square feet = 1/9 square yard

192 square feet = 192 × 1/9 square yard

= 64/3 square yard

Total cost

$30 × 64/3 = $640

Fill in the blank with the correct term or number to complete the sentence : a fraction is written in simplest form when the GCF of the numerator and the denominator is

Answers

Answer:

A fraction is written in simplest form when the GCF of the numerator and the denominator is 1.

Step-by-step explanation:

if both still shared common factors you could keep reducing the fraction

The graph shows a point at (4,1) and a line segment with endpoint at (2,2) and (6,2) This line segment will be dilated with the point of dilation at (4, 1) and a scale factor of 2. What is the 2-coordinate of
one of the endpoints of the dilated segment?

Answers

Dilation involves changing the size of a figure

The endpoints of the image are (0,3) and (8,3)

How to determine the coordinates of the image

The coordinates of the pre-image are give as:

(2,2) and (6,2)

The scale factor is given as:

k = 2

The center of dilation is given as:

(a,b) = (4,1)

The coordinates of the image are then calculated as:

(x,y) = (k(x -a) + a, k(y -b) + b)

For (2,2), we have:

[tex](x,y) \to (2(2 -4) + 4, 2(2 - 1) + 1)[/tex]

[tex](x,y) \to (0, 3)[/tex]

For (6,2), we have:

[tex](x,y) \to (2(6 -4) + 4, 2(2 - 1) + 1)[/tex]

[tex](x,y) \to (8, 3)[/tex]

Hence, the endpoints of the image are (0,3) and (8,3)

Answers

Answer: When you have two mutually exclusive events, to find the probability of one or another, you add the probabilities.

65+7=72

Final answer: B

Step-by-step explanation:

Answer:

2.93

Step-by-step explanation:

Find the ratios for the trig functions below

sin A =

cos C =

Answers

Answer:

Sin A: 35/37

Cos C: 35/37

Step-by-step explanation:

Sin A: 35/37

Cos C: 35/37

Using acronym SohCahToa we know

Sin is Opposite/Hypotenuse

Cos is Adjacent/Hypotenuse

With each problem we mark by the letter given to create adjacent side.

I hope this helps!

When solving by substitution; you first must

A- get the numbers by themselves
B-decide if you are substitution
C-start solving the problem as you would an equation

Answers

B because thd mbajdidiidid

REALLY EASY POINTS
-
What are the values of a positive attitude?

Answers

Answer:

Self-confidence: When you develop a positive attitude, you will start feeling better about yourself. You will treat yourself with more respect and love, and this in turn will boost your confidence levels and inner strength. You will take on new challenges and come out of your self-limiting beliefs

Two similar triangles have a pair of corresponding sides of length 12 meters and 8 meters.
The larger triangle has a perimeter of 48 meters and an area of 180 square meters. Find the
perimeter and area of the smaller triangle.

Answers

Answer:

32 m, 80 m^2

Step-by-step explanation:

Ratio of their sides = 12 : 8 = 3 : 2

Ratio of their perimeter = 3 : 2

so 48 : perimeter of smaller triangle = 3 : 2

Perimeter of smaller triangle = 48 * 2 / 3 = 32 m

Ratio of their areas = 3^2 : 2^2 = 9 : 4

so 180 : area of smaller triangle = 9 : 4

Area of smaller triangle = 180 * 4 / 9 = 80 m^2

A triangle has an area of 13.5 square miles and a height of 4.5 miles. What is the length
of the base?

Answers

Answer:

6 miles

Step-by-step explanation:
Area is :

[tex]A = \frac{1}{2} hb[/tex] OR [tex]A = \frac{hb}{2}[/tex]
So base is :
[tex]b = 2 \frac{A}{h}[/tex]
Substituting values given:
b = 2 × (13.5÷4.5)
b = 2×3
b=6

Answer:

the length of the base= 6miles

Step-by-step explanation:

Area of triangle =1/2 *Base*Hight

Now we sub the values in the formula:

13.5 = 1/2 * (length of the base) * 4.5

length of the base = (2 * 13.5)/4.5

length of the base = 6 miles

Find the length of the rectangle given the area is x2-4x-45 ft2 and the width is x+5

Answers

[tex]\textit{area of a rectangle}\\\\ A=Lw~~ \begin{cases} L=length\\ w=width\\[-0.5em] \hrulefill\\ A=x^2-4x-45\\ w=x+5 \end{cases}\implies x^2-4x-45=L(x+5) \\\\\\ \cfrac{x^2-4x-45}{x+5}=L\implies \cfrac{(x-9)~~\begin{matrix} (x+5) \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}{~~\begin{matrix}x+5 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~ }=L\implies x-9=L[/tex]

-
16. Convert 100 meters per hour to inches per
second. (1 meter = 3.3 feet, 1 ft = 12 in, 1
hour = 60 minutes, 1 minute = 60 seconds)
(1.1 inch per second)

Answers

Answer:

0.106

Step-by-step explanation:

100 meters= 382 feet (per hour)

60 minutes in an hour

60 seconds in a minute

382/60=6.34 inches per minute (rounded to nearest tenth)

1 minute = 6.34 inches

6.34 / 60 = 0.106 (rounded to nearest thousandth)

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