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2 years ago

11

A telephone pole is 15 meters tall and a pigeon is standing on the ground 8 meters from the pole. If the pigeon flies from where

it is standing to the top of the telephone pole, how far will it fly?

1 answer:

klio [65]2 years ago

8 0

Step-by-step explanation:

${a }^{2} + {b}^{2} = {c}^{2} \\ {15}^{2} + {8}^{2} = {c}^{2} \\ 225 + 64 = {c}^{2} \\ \sqrt{289} = {c}^{2} \\ 17 = c$

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Determine whether the study is an observational study of an experiment. Explain.

wolverine [178]

Answer: Observational ; does not

Step-by-step explanation: The main distinguishing factor between an experimental study and an observational study lies in the administration of treatment to the participant of the study. In experimental study, some or all the participant in the study are subjected or exposed to a certain treatment and their response to such treatment. ON THE OTHER HAND, Observational study is usually employed when there is a need to gather information on a particular subject matter without directly influencing the participants. In the scenario above, participants were not given any TREATMENT as they were only required to gather information and not to measure the effect of a treatment.

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2 years ago

9=v divided by 5 solve.

sp2606 [1]

Answer:

45= v

Step-by-step explanation:

9 = v/5

Multiply each side by 5

9*5 = v/5*5

45 =v

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2 years ago

Read 2 more answers

Which equation in slope intercept represents the line that goes through the points (-1, -5) and (1, -1)

Svetllana [295]

Answer:

Step-by-step explanation:

First of all, I drawed this graph and uploaded it for you...

We know that a line equation is y = ax + b and I want to know which equation goes through the points (-1, -5) and (1, -1).

Let's put these points in the algebreac expression of line to find the correct equation:

-5 = a. (-1) + b

-1 = a.(1) + b

solving this system of equation by elimination, we find 2b = -6 and b = -3.

Then, -5 = -a + (-3)

-a = -5 + 3

a = 2

Finally, our line equation is y = 2x - 3

The slope also is represented by a. So, the slope is 2.

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3 years ago

Match the cofactors to their corresponding entries in the matrix.

Masja [62]

Answer:

The co-factors and their values are shown in the table below.

Step-by-step explanation:

We are given the matrix, $\begin{bmatrix}3&7&1\\7&1&-3\\8&5&1\end{bmatrix}$ .

It is required to match the co-factors with the corresponding values.

As, the co-factors are given by,

$A_{c_{ij}}$ = $(-1)^{i+j}(d)$ , where the d= determinant of the matrix after removing the i- row and j- column.

So, we have,

1. $A_{c_{11}}$ .

So, $A_{c_{11}}=(-1)^{1+1}(1\times 1-5\times (-3))$

i.e. $A_{c_{11}}=(-1)^{2}(1+15)=16$

2. $A_{c_{13}}$ .

So, $A_{c_{13}}=(-1)^{1+3}(7\times 5-1\times 8)$

i.e. $A_{c_{13}}=(-1)^{4}(35-8)=27$

3. $A_{c_{21}}$ .

So, $A_{c_{21}}=(-1)^{2+1}(7\times 1-5\times 1)$

i.e. $A_{c_{21}}=(-1)^{3}(7-5)=-2$

4. $A_{c_{22}}$ .

So, $A_{c_{22}}=(-1)^{2+2}(3\times 1-8\times 1)$

i.e. $A_{c_{22}}=(-1)^{4}(3-8)=-5$

5. $A_{c_{31}}$ .

So, $A_{c_{31}}=(-1)^{3+1}(7\times (-3)-1\times 1)$

i.e. $A_{c_{31}}=(-1)^{4}(-21-1)=-22$

Thus, we get,

Co-factor Value

$A_{c_{11}}$ 16

$A_{c_{13}}$ 27

$A_{c_{21}}$ -2

$A_{c_{22}}$ -5

$A_{c_{31}}$ -22

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2 years ago

Points T, R, and P, define _____Points B, A, and E are:

balu736 [363]

Answer:

Point T,R,P not seen how I don't understand your question.

4 0

2 years ago