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Fed [463]
3 years ago
8

Allison counted 56 cars parked in the lot. Eight parking spaces remained empty Plan, solve, and check to find the ratio of empty

to full parking spaces.
Mathematics
1 answer:
Alexeev081 [22]3 years ago
3 0
The ratio is 1:8 for empty to full.
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9. What is the slope of the line through the points (-2, -1) and (4, 3)?
Fofino [41]

Step-by-step explanation:

given points,

(-2, -1) and (4,3)

we know,

slope of line = y_2 - y_1/ x_2 - x_1

x_1 and y_1 = -2 , -1

x_2 and y_2 = 4 , 3

according to the formula

3 - (-1)/4 - (-2)

→ 3 + 1/4 + 2

→ 4/6

→ 2/3

or (2,3)

therefore, slope of the given line is (2,3).

Hope this answer helps you dear!

4 0
3 years ago
A semicircle has an area of 76.97 squared km. Find it’s radius
shtirl [24]

Answer:

7 km

Step-by-step explanation:

Substitute:

The equation for area of a semi-circle is \frac{r^{2}\pi }{2}

A =  \frac{r^{2}\pi }{2}

76.97 =  \frac{r^{2}\pi }{2}

Multiply by 2 on both sides:

2(76.97) = ( \frac{r^{2}\pi }{2})2

153.94 = r^{2} \pi

Divide by pi on both sides:

153.94 = r^{2} \pi

/pi           /pi

49.03 ≈ r^{2}

Find the square root:

\sqrt{49.03} =\sqrt{r^{2} }

7 = r

7 0
3 years ago
Draw a number line and mark all described points on it.
enot [183]

Answer:

<em>See attached</em>

<u>Numbers are either negative or greater tan 5:</u>

  • x < 0 and x > 5
  • or
  • x = (-∞, 0) ∪ (5, +∞)

7 0
3 years ago
Read 2 more answers
The solution to which system of equations has an x-value of 3?
ANEK [815]

Answer:

D)

Step-by-step explanation:

7 0
2 years ago
The function f(x) = –x2 − 2x + 15 is shown on the graph. What are the domain and range of the function? The domain is all real n
dedylja [7]

Answer:

The domain is all real numbers. The range is {y|y ≤ 16}

Step-by-step explanation:

we have

f(x)=-x^{2}-2x+15

This is a the equation of a vertical parabola open downward

The vertex is a maximum

The vertex is the point (-1,16)

see the attached figure

therefore

The domain of the function is all real numbers ----> interval (-∞,∞)

Te range of the function is

y\leq 16

All real numbers less than or equal to 16 ----> interval  (-∞,16]

8 0
3 years ago
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