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Yanka [14]

2 years ago

7}^{ - 2} {( - 3)}^{2} " alt=" {7}^{ - 2} {( - 3)}^{2} " align="absmiddle" class="latex-formula">

Mathematics

2 answers:

I am Lyosha [343]2 years ago

4 0

9 over 49 is the answer i got

r-ruslan [8.4K]2 years ago

3 0

Answer:

Step-by-step explanation:

$\frac{1}{7^{2} } *9=\frac{1}{49} *9=\frac{9}{49}$

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gizmo_the_mogwai [7]

Answer:

The other endpoint of the segment is $(-18,-7)$ .

Step-by-step explanation:

The midpoint of the points $(x_1,y_1)$ and $(x_2,y_2)$ is given by the following formula:

$(x_m,y_m)=(\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2} )$

where $(x_m,y_m)$ = coordinates of the midpoint.

We know that the midpoint is (-15, 2) and an endpoint is (-12, 11). Substituting the information we have gives:

$(-15,2)=(\frac{x_1-12}{2}, \frac{y_1+11}{2} )$

To find $x_1$ we need to solve this equation:

$-15=\frac{x_1-12}{2} \\\\\frac{x_1-12}{2}=-15\\\\\frac{2\left(x_1-12\right)}{2}=2\left(-15\right)\\\\x_1-12=-30\\\\x_1-12+12=-30+12\\\\x_1=-18$

and to find $y_1$ we need to solve this equation:

$2= \frac{y_1+11}{2} \\\\\frac{y_1+11}{2}=2\\\\\frac{2\left(y_1+11\right)}{2}=2\cdot \:2\\\\y_1+11=4\\\\y_1=-7$

The other endpoint of the segment is $(x_1,y_1)=(-18,-7)$ .

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Jim makes $8.50 an hour and $3 extra for cleaning a store. If he worked 36 hours and cleaned 17 stores. How much money did he ma

kati45 [8]

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The probability is either 2 but mostly 3 boys.

Step-by-step explanation:

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Vlad1618 [11]

Answer:

See below

Step-by-step explanation:

equal probability each occurs 1 time out of 16 possibilities

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