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3 years ago

How many gallons do you need for every 150 miles

Mathematics

1 answer:

Vaselesa [24]3 years ago

6 0

Answer:

you would use 1.65 gallons every 150 miles

Step-by-step explanation:

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Pleaseee i need help!! and the working!

zaharov [31]

Hey! $1.96 x £25,000 = $49,000
Then to change it back you:
$49,000 divided by 1.75 = £28,000

6 0

3 years ago

Martin throws a ball straight up in the air. the equation h(t) = -16t^2 + 40t + 5 gives the height of the ball, in feet, t secon

Lisa [10]

Answer:

2.62 seconds

Step-by-step explanation:

Let

t ----> the time in seconds

h(t) ----> he height of the ball, in feet

we have

$h(t)=-16t^2+40t+5$

we know that

When the ball hits the ground, the height is equal to zero

$-16t^2+40t+5=0$

The formula to solve a quadratic equation of the form

$at^{2} +bt+c=0$

is equal to

$t=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$-16t^2+40t+5=0$

$a=-16\\b=40\\c=5$

substitute in the formula

$t=\frac{-40\pm\sqrt{40^{2}-4(-16)(5)}} {2(-16)}$

$t=\frac{-40\pm\sqrt{1,920}} {-32}$

$t=\frac{-40+\sqrt{1,920}} {-32}=-0.12\ sec$

$t=\frac{-40-\sqrt{1,920}} {-32}=2.62\ sec$

therefore

The solution is t=2.62 seconds

4 0

2 years ago

What will be the area of a circle if it’s radius is tripled

geniusboy [140]

The circumference of a circle is equal to the diameter times pi. So, let's look at what happens if you double the radius of a circle -- say from 2 to 4. The area will go from 12.56 to 50.24. This means that it has quadrupled.

4 0

3 years ago

Which describes the graph of y=(x+6)^2+1?

Fittoniya [83]

C. Vertex at (-6,1)

3 0

3 years ago

Find the missing side round your answer to the nearest tenth

kap26 [50]

Use trigonometric ratios.
Use angle(19)
Adjacent side of angle measure 19 is X
The hypotenuse is 21.
Use the cosine
Cos(19)=x/21

Plug in calculator
(21)cos(19)=19.85

Round to the nearest tenth. Which means the 8 rounds up to 9.

Answer: 19.9

7 0

3 years ago