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3 years ago

Find the slope of the line passing through the points (7,-8) and (1, -1).

Mathematics

2 answers:

natita [175]3 years ago

6 0

Answer:

5= - 7/6

Hope this helps

Wittaler [7]3 years ago

3 0

slope = "rise over run" (the change in y coordinates divided by the change in x coordinates) =

(8--7)/(3-7) = 15/-4 = -15/4

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In a park,a sidewalk is built around the edge of a circular pond.The sidewalk is 7 feet wide,and the pond measure 15 feet across

densk [106]

Answer:

91.14 feet

Step-by-step explanation:

Given:

In a park,a sidewalk is built around the edge of a circular pond.

The sidewalk is 7 feet wide, and the pond measure 15 feet across.

Question asked:

What amount of railing would be needed to go completely around the outer edge of the sidewalk?

Solution:

From distance from one edge of the pond to the another = 15 feet

That means diameter of the pond = 15 feet

And width of the sidewalk = 7 feet all around

combined diameter = 15 + 7 + 7 = 29 feet

Radius,r = $\frac{Diameter}{2} =\frac{29}{2} ==14.5\ feet$

That means distance between outer edge of the sidewalk to the center of the circular pond = 14.5 feet

Now, we will have to find circumference of outer circular edge of sidewalk:

$Circumference\ of\ circle=2\pi r$

$=2\times\frac{22}{7} \times14.5\\ \\ =\frac{638}{7} \\ \\ =91.14\ feet$

Therefore, 91.14 feet would be needed to go around the outer edge of the sidewalk.

7 0

3 years ago

376 feet above sea level

galina1969 [7]

Answer:

376 feet high standard

Step-by-step explanation:

above sea level its positive

3 0

3 years ago

Mrs. Hwang is taking her vehicle to the shop to have the gas tank expanded by 10 gallons. Now, it costs her $42.56 to fill the t

harina [27]

Answer:

Proportion states that the two fractions or ratios are equal

As per the statement: Mrs. Hwang is taking her vehicle to the shop to have the gas tank expanded by 10 gallons. Now, it costs her $42.56 to fill the tank. Once the new tank is in, it will cost her $72.96

Let the tank size now be x

Since, the gas tank expanded by 10 gallons = x + 10

by definition of proportion ;

$\frac{x}{42.56}=\frac{x+10}{72.96}$

by cross multiply we get;

$72.96x = 42.56(x+10)$

using distributive property; $a\cdot (b+c) =a\cdot b + a\cdot c$

$72.96x = 42.56x+425.6$

Subtract 42.56x from both sides we get;

$30.4x =425.6$

Divide both sides by 30.4 we get;

x = 14

Therefore, the tank is her now is, 14 gallons

5 0

2 years ago

Read 2 more answers

20 POINTS , ALSO GIVING BRAINLIEST , PLEASE HURRY !!

liq [111]

Answer:

.5236

Step-by-step explanation:

Formula for sphere volume:

V = $\frac{4}{3} \pi r^{3}$

substiture 0.5 for r:

$\frac{4}{3} \pi 0.5^{3}$ = .5236

5 0

3 years ago

What's the solution to the inequality ??

stealth61 [152]

X<-2

hope this helped!

4 0

3 years ago

Read 2 more answers