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2 years ago

Rates and Ratio Test Review

Mathematics

1 answer:

Nimfa-mama [501]2 years ago

4 0

Answer:

C. 49

Step-by-step explanation:

Cats : dogs

7 : 8

59 : 56

8 x 7= 56

so, 7 x 7= 49

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Write the equation of the line that is perpendicular to y=2x-7 and passes through the point (6, 5)

Pani-rosa [81]

Answer:

Step-by-step explanation:

we are given a equation of a line

we want to figure out the equation of the perpendicular line passes through the (6,5) points

in order to do so

recall that,

$\displaystyle m_{ \text{perpendicular}} = - \frac{1}{m}$

we got from our given equation that m=2

because equation of a line is y=mx+b

thus

$\displaystyle m_{ \text{perpendicular}} = - \frac{1}{2}$

remember that, when we want to figure out perpendicular line or parallel line we should the formula given by

$\displaystyle y - y_{1} = m(x - x_{1})$

since we got our perpendicular m is -½, $x_1=6$ and $y_1=5$ , substitute

$\displaystyle y - 5 = - \frac{1}{2} (x - 6)$

to get the perpendicular equation you should simplify the above equation to y=mx+b form

distribute -½:

$\displaystyle y - 5 = - \frac{1}{2} x + 3$

add 5 to both sides:

$\displaystyle y = - \frac{1}{2} x + 8$

hence,

our answer choice is B

3 0

3 years ago

Read 2 more answers

Someooonnnneeee please help

Sergeeva-Olga [200]

In this case the answer is 1/4 because she makes 2 revolutions in 8 minutes. 2/8 = 1/4

7 0

3 years ago

In right trapezoid MNPQ

AysviL [449]

Answer:

Step-by-step explanation:

7 0

2 years ago

Linear equation of line with slope 1/4

MrRa [10]

Answer:

1/4x

Step-by-step explanation:

1/4x is a linear equation because it has a constant slope, and the slope of a line is shown before the x.

4 0

3 years ago

Can a triangle be formed with side lengths: 10, 12, 22

Elenna [48]

No. A squared plus b squared must equal c squared (Pythagorean theorem). 10 squared is 100, 12 squared is 144, they add up to 244 but 22 squared is 484…..much too large

8 0

2 years ago