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nordsb [41]
2 years ago
14

Help help help help help help help help help

Mathematics
2 answers:
atroni [7]2 years ago
8 0

Answer:

x=3√5

Step-by-step explanation:

This is a right angle triangle

So the equation is

2²+x²=7²

x=√7²-2²

x=3√5

Ray Of Light [21]2 years ago
7 0

Answer:

x=3√5

Step-by-step explanation:

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I know it may be too late, but maybe it will eventually help you or someone else.

If a plane travels with a speed of 570 miles per hour for 7 hours, then he will travel 570 * 7 = 3990 miles in that time.

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The y-intercept of g(x) in g(x) = 3x - 2 is (0,-2) (0,0) (2/3,0)
Dennis_Churaev [7]
For any y-intercept, the x-coordinate is zero. This is something to bear in mind to start with.

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26. Law of sines, please give a step by step explanation
Stels [109]

Answer:

  174.6 ft

Step-by-step explanation:

It can be helpful to draw a diagram of the triangle we're concerned with. (See attached.)

We know the angle at the end of the shadow inside the triangle is 52°-22° = 30°. We assume the tree is growing straight up out of the hillside, so its angle with the hill inside the triangle is 90°+22° = 112°. Then the remaining angle between the shadow and the tree at the top of the tree is ...

  180° -30° -112° = 38°

Now, we have the angle opposite the tree, and the angle opposite the known side length of the triangle (215 feet along the hill, AC in the diagram). This is enough information to usefully use the Law of Sines.

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5 0
2 years ago
What is the value of C in the matrix equation below?
lara [203]

Given:

The matrix equation is:

\begin{bmatrix}-18&3&5\end{bmatrix}-C=\begin{bmatrix}-22&1&12\end{bmatrix}

To find:

The value of matrix C.

Solution:

Let A=\begin{bmatrix}-18&3&5\end{bmatrix},B=\begin{bmatrix}-22&1&12\end{bmatrix}. Then the given equation can be rewritten as

A-C=B

-C=B-A

C=-(B-A)

C=A-B

On substituting the values of the matrices, we get

C=\begin{bmatrix}-18&3&5\end{bmatrix}-\begin{bmatrix}-22&1&12\end{bmatrix}

C=\begin{bmatrix}-18-(-22)&3-1&5-12\end{bmatrix}

C=\begin{bmatrix}-18+22&2&-7\end{bmatrix}

C=\begin{bmatrix}-4&2&-7\end{bmatrix}

Therefore, the correct option is C.

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Greeley [361]

Answer:

m=3/4

Step-by-step explanation:

3 0
3 years ago
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