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3 years ago

If a car traveling 40 miles per hour takes 50

Mathematics

1 answer:

maksim [4K]3 years ago

5 0

Answer:

t = 0.85 s

Step-by-step explanation:

Given that,

The speed of a car, v = 40 mph = 17.8816 m/s

Distance, d = 50 feet = 15.24 m

Let the time be t. The formula for speed is given by distance divided by time. So,

$v=\dfrac{d}{t}\\\\t=\dfrac{d}{v}\\\\t=\dfrac{15.24 }{17.8816 }\\\\t=0.85\ s$

So, the required time is 0.85 s.

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A central angle of a circle measures 42 degrees. What else can be shown to measure 42 degrees?

Slav-nsk [51]

Answer:

Vertically opposite angles

Step-by-step explanation:

Given

$\theta = 42^\circ$

Required

What else can measure $\theta = 42^\circ$

The question has missing options. So, I will give a general explanation.

Using the attached image as a point of reference.

Given that:

$\theta = 42^\circ$

The value of b is calculated as:

$b = \theta$

Because b and $\theta$ are vertically opposite angles

This gives:

$b = 42^\circ$

So, one possible answer to the question is a vertically opposite angle

4 0

3 years ago

Find the missing side length SH. Round answer to nearest tenth.

ikadub [295]

66 degrees divided by 2= 33 degrees
Then, 22/2=11
11/sin(33)= 20.2

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3 years ago

Read 2 more answers

Suppose Carla has $7000 to invest. Which investment yields the greater return over 4 years: 7% compounded quarterly or 6.85% com

tatiyna

Answer:

The correct answer is B. The rate of 7% compounded quarterly is better.

Step-by-step explanation:

In the case of investment at 7% compounded quarterly, the final result after 4 years of investment arises from the following calculation:

X = 7000 x (1 + 0.7 / 3) 4x3

X = 9,232.16

Therefore, after 4 years of investment, the amount in the account would be $ 9,232.16.

In turn, in the case of the investment at 6.85% compounded monthly, the final result after the same investment period arises from the following calculation:

X = 7000 x (1 + 0.685 / 12) 4x12

X = 9,199.33

Thus, in this case, the amount in the account after 4 years of investment would be $ 9,199.33.

8 0

3 years ago

What is the slope of the line that passes through the points (-8,-1) and (-8,11)?

lubasha [3.4K]

Answer: $\text{Slope}=\Large\boxed{Unde fined}$

Step-by-step explanation:

Given information

$(x_1,~y_1)=(-8,~-1)$

$(x_2,~y_2)=(-8,~11)$

Given the formula for the slope

$\text{Slope}=\dfrac{\Delta y}{\Delta x}=\dfrac{y_2-y_1}{x_2-x_1}$

Substitute values into the formula

$\text{Slope}=\dfrac{(11)-(-1)}{(-8)-(-8)}$

Simplify the numerator and the denominator

$\text{Slope}=\dfrac{11+1}{-8+8}$

$\text{Slope}=\dfrac{12}{0}$

Simplify the fraction

$\text{Since any number divided by 0 is impossible to find, therefore: }$

$\text{Slope}=\Large\boxed{Unde fined}$

Hope this helps!! :)

Please let me know if you have any questions

4 0

2 years ago

A truck rental company rents a moving truck for one day by charging $29 plus 0.07 per mile.

fomenos

Y = .7x + 29

x = miles driven and, y = total cost of renting the truck

5 0

3 years ago