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3 years ago

Bab can’t do quick mafs. Help?

Mathematics

1 answer:

iragen [17]3 years ago

5 0

Answer:

(5, -3)

Step-by-step explanation:

Midpoint formula:

$(x,y ) = (\frac{x_{1}+x_{2} }{2} ,\frac{y_{1} +y_{2} }{2})\\= (\frac{3+7}{2}, \frac{-1+(-5)}{2} )\\=(\frac{10}{2}, \frac{-6}{2} )\\= (5,-3)$

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if a car travels 25 miles in 1 hour which table shows D the distance in miles that it can travel in. help me

g100num [7]

17 it the answer do it

3 0

3 years ago

Read 2 more answers

What is the change in temperature from 15 degrees to -9 degrees? -6, 6, -24, 25

dalvyx [7]

Answer:

24 degrees

Step-by-step explanation:

The distance from 15 degrees to 0 degrees is 15, and the distance from 0 degrees to -9 degrees is 9, so then the total distance from 15 degrees to -9 degrees is (15+9 degrees) which adds up to be 24 degrees

3 0

3 years ago

n the proportion 1 over z equals fraction numerator begin display style 4 over 5 end style over denominator 8 end fraction which

pav-90 [236]

Answer:

$z=10$

Step-by-step explanation:

we have

$\frac{1}{z}=\frac{(4/5)}{8}$

solve for z

$z(\frac{4}{5})=8$

$z=8*5/4$

$z=10$

4 0

3 years ago

Find the center of the circle that you can circumscribe about DABC.

Vlada [557]

The center of the circle that circumscribe about DABC is $(h,k) = (1, 5)$ .

A circle can be modelled after a expression of the form:

$A\cdot x + B\cdot y + C =-x^{2}-y^{2}$ (1)

We can determine all coefficients by knowing three <em>distinct</em> points on plane.

If we know that $(x_{1}, y_{1}) = (2, 8)$ , $(x_{2}, y_{2}) = (0, 8)$ and $(x_{3}, y_{3}) = (2, 2)$ , then the solution of the system of linear equations is:

$2\cdot A + 8\cdot B + C = -68$ (2)

$8\cdot B + C = -64$ (3)

$2\cdot A + 2\cdot B + C = -8$ (4)

$A = -2, B = -10, C = 16$

Now we proceed to <em>complete</em> squares and factor each resulting perfect square trinomial in order to determine the coordinates of the center of the circle:

$x^{2}+y^{2}-2\cdot x -10\cdot y +16 = 0$

$(x^{2}-2\cdot x +1)-1+(y^{2}-10\cdot y +25)-25 +16 = 0$

$(x-1)^{2}+(y-5)^{2}= 10$

The center of the circle that circumscribe about DABC is $(h,k) = (1, 5)$ .

To learn more on circles, we kindly invite to check this verified question: brainly.com/question/11833983

5 0

3 years ago

Lena got a prepaid debit card with $30 on it. For her first purchase with the card, she bought some bulk ribbon at a craft store

jasenka [17]

Step-by-step explanation:

To find out how much she spent:

30 - 27.15 = 2.85

Change it to cents:

2.85 x 100 = 285 cents

Calculate how many yards of ribbon she bought:

285 / 19 = 15

Therefore, she bought 15 yard of ribbon.

6 0

2 years ago