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3 years ago

Can you help me solve this problem & write my answer in simplest radical form.

Mathematics

1 answer:

olga55 [171]3 years ago

3 0

Answer:

Step-by-step explanation:

30-60-90 triangles have a set of x values that you can plug your numbers into.

we know that the side length opposite to 30 is x

the side length opposite to 60 is xsqrt3

the side length opposite to 90 is 2x

from this we can gather that y=2x where x=9 therefore y=18

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Students in Miss Mouseley’s fourth grade class are learning multiplication, and they demonstrate mastery by passing assessments.

Alja [10]

Answer:

3 weeks and they both passed 17 test

Step-by-step explanation:

11+2=13 13=2=15 15+2=17

5+2=7 7+5=12 12+=17

by the third week they will both be equal and passed 17 test :)

5 0

3 years ago

Will Mark!! The length of a rectangle is represented by 7x- y, and the width is represented by 3x + 4y. Write polynomial that re

nikdorinn [45]

Answer:

2(7x-y) + 2(3x+4y)

7 0

3 years ago

If we can show then EH || FG

guajiro [1.7K]

Answer:

Step-by-step explanation:

The answer is D because A and B is an alternate interior angle meaning they don't have to be parallel lines in order to show that they are the same angles. C is incorrect.

E is incorrect because perpendicular lines mean that they have to be 90 degrees angle but the one that is shown is diagonal instead.

8 0

3 years ago

One serving of a certain brand of yogurt contains 12 G of fat the low-fat version contains 38.75% less fat per serving how many

Mkey [24]

Answer:

One serving of law-fat yogurt contains 7.35 g of fat.

Step-by-step explanation:

One serving of

a certain brand of yogurt contains 12 g of fat
the low-fat yogurt contains 38.75% less fat

Let x g be the amount of fat in low-fat yogurt. Then

12 g of fat - 100%

x g of fat - 100% - 38.75% = 61.26%

Write a proportion

$\dfrac{12}{x}=\dfrac{100}{61.25}$

Cross multuply

$100\cdot x=12\cdot 61.25\\ \\100x=735\\ \\x=\dfrac{735}{100}=7.35$

One serving of law-fat yogurt contains 7.35 g of fat.

3 0

3 years ago

What does the constant 0.9955 reveal about the rate of change of the quantity?

cricket20 [7]

The model given is:

$f(t)=290(0.9955)^{60t}$

The term in the parentheses represents the change of rate of the model. If the number is the parentheses is less than 1, we call it exponential decay.

If the number in parentheses is bigger than 1, we call it exponential growth.

In this case, the correct option is "decaying"

The number in parentheses let's call it R, is:

$R=1-r$

Where r is the rate of change. To find it:

$\begin{gathered} 0.9955=1-r \\ . \\ r=1-0.9955=0.0045 \end{gathered}$

To convert to percentage, we convert by multiplying by 100::

$0.0045\cdot100=0.45\%$

The second answer is 0.45%

And since t is the time passed in hours, and has a "60" multiplying it, the last answer is: Every 60 hours

The final answer is:

The function is exponentially decaying at a rate of 0.45% evary 60 hours.

7 0

1 year ago