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4 years ago

5

Explain a method that you can use to change 17/40 that does not involve using a calculator to do 17/40. Also long division with

your paper and pencil is not the method you want to use

1 answer:

marissa [1.9K]4 years ago

7 0

Answer:

you could use photomath TECHNICALLY you aren't using a traditional calculator

Step-by-step explanation:

download photomath

take picture

copy answer

boom

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Tell whether the figure is a polygon. If it is not, explain why. If it is a polygon, tell whether it is convex or concave. (look

Olin [163]

Answer:

First one is second one isn't and the third one is.

Step-by-step explanation:

This is because a polygon is a shape with all sides straight and it is a closed shape.

3 0

3 years ago

ANSWER FAST!!!!!!!

Lemur [1.5K]

Answer:

The angle between the 190 ft. side and the 330 ft. side is $57.9^o$

Step-by-step explanation:

<u>The Law of Cosines</u>

When we know the value of all sides of a triangle, we can compute all of its interior angles by using the Law of Cosines, which is a generalization of the Pythagoras's theorem. If a,b, and c are the known sides of a triangle and $\alpha$ is the angle formed by sides a and b (opposite to c), then

$\displaystyle c^2=a^2+b^2-2ab\ cos\alpha$

We'll use the values a=190, b=330, c=280 because we want to compute the angle opposite to c

$\displaystyle cos\alpha =\frac{a^2+b^2-c^2}{2ab}$

$\displaystyle cos\alpha =\frac{190^2+330^2-280^2}{2(190)(330)}$

$\displaystyle cos\alpha =\frac{36100+108900-78400}{125400}$

$\displaystyle cos\alpha =\frac{66600}{125400}=0,5311$

$\displaystyle \alpha= arccos\ 0.5311$

$\boxed{\displaystyle \alpha= 57.9^o}$

5 0

4 years ago

The answers are<br> a) 1°<br> b)14°<br> c)24°<br> d)31°

Tom [10]

Answer:

b) 14°

Step-by-step explanation:

To solve this, you need to make an equation. since a line is equal to 180°, you can add the two angles together. for example, x+96+5x=180. you would write this because these two angles are on a line, which makes the total sum 180°. now you solve: 6x+96=180. 6x=84. x=14°. :)

8 0

3 years ago

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- has to be solved and put as an inequality

8_murik_8 [283]

Answer:

(98+89+88+x)/5 > 92

366+x/ 5 > 92

x/5 + 73.2 > 92

x/5 > 18.8

x > 94

The lowest score that you can make and have a 92 average is a 94. Hope this helps!

Step-by-step explanation:

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3 years ago

Simplify The Expression Using Properties Of Exponents.

andreyandreev [35.5K]

Answer:

D

Step-by-step explanation:

a and b goes down because are negative power and 25/5 =5.

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4 years ago

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