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3 years ago

What is the product of (-1/4) times (-3/7)

Mathematics

1 answer:

weqwewe [10]3 years ago

3 0

Answer:

3/28

Step-by-step explanation:

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Find the length of side w.

9966 [12]

Hey there! I'm happy to help!

To find this other side given an angle and a side, we will use a trigonometric function. The three basic ones are sine, cosine, and tangent. You can remember these and what what they are using the mnemonic "soh cah toa".

SOH: Sine= Opposite/Hypotenuse

CAH: Cosine= Adjacent/Hypotenuse

TOA: Tangent= Opposite/Adjacent

We see that the sides involved are the opposite and hypotenuse.

Therefore, we can write this equation.

sin40= w/28

We multiply both sides by 28 to isolate the w.

28×sin40=w

Now, we find the sine of 40 on our calculator and then we multiply it by 28.

w≈18

Therefore, the answer is 18 cm.

I hope that this helps! Have a wonderful day!

4 0

2 years ago

S =The maximum walking speed S, in feet per second, of an animal can be modeled by the equationVgL, where g = 32 ft/sec and L is

grin007 [14]

1.41 times

1) Well, let's get started by writing out the equation:

$S=\sqrt[]{gL}$

2) Let's find out the maximum walking speed of a giraffe, plugging into that the given data: Giraffe Leg Length: 6

$\begin{gathered} S_{\text{giraffe}}=\sqrt[]{32\times6} \\ S_{\text{giraffe}}=\sqrt[]{192}\approx13.86 \end{gathered}$

And the hippotamus:

$S_{\text{hippo}}=\sqrt[]{32\times3}\Rightarrow\sqrt[]{96}\approx9.80$

And now how many times greater by dividing the giraffe's speed by the hippopotamus speed:

$\frac{13.86}{9.8}\approx1.41$

Hence, the answer is 1.41 times.

3 0

11 months ago

Find the value of x. If necessary, round your answer to the nearest tenth. O is the center of the circle. The figure is not draw

Aleonysh [2.5K]

Answer:

$x=25$

Step-by-step explanation:

we know that

In this problem

The value of x represent the radius of the circle

Applying the Pythagoras theorem in the right triangle of the figure, you can find the radius of the circle O

see the attached figure to better understand the problem

$x^{2} =20^{2}+15^{2}$

$x^{2} =400+225$

$x^{2} =625$

square root both sides

$x=25$

8 0

2 years ago

Find the area enclosed by the graphs of x + y = 6 , x − y = 0 , y + 5x = 6 .

LekaFEV [45]

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6 0

2 years ago

Divide. Reduce the answer to lowest terms.

Anastasy [175]

I don’t get the question

4 0

2 years ago