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3 years ago

Find the linear equation with slope = 7 and y-intercept = -4 NEED HELP!!!

1 answer:

riadik2000 [5.3K]3 years ago

8 0

You already have all you need. Just put in it the slope-intercept form: y=mx+b where m is the slope and b is the y-intercept so

y=7x-4

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Based on the following set of data, which of the statements shown is true? 11, 11, 12, 13 mean < median mean = median mean &g

Law Incorporation [45]

mean>median

mean=11.75

median=11.5

5 0

3 years ago

You and your friend each start a car-washing service. you spend $25 on supplies and charge $10 per car. your friend spends $55 o

lakkis [162]

Let x be the number of cars. We will find out how many cars you have to wash to make as much money as your friend:
10x - 25= 13x - 55 Add 25 on both sides and subtract 13x, also both sides:
3x = -30 Now divide both sides by -3:
x= 10 cars you have to wash.

7 0

3 years ago

While visiting a memorial, a person approximated the angle of elevation to the top of the memorial to be 35º. After walking 255

Alenkasestr [34]

Draw a diagram to illustrate the problem as shown in the figure below.

Let h the height of the hill. =

At position A, the angle of elevation is 40°, and the horizontal distance to the foot of the hill is x.

By definition,

tan(40°) = h/x h = x tan40 = 0.8391x

(1)

At position B, Joe is (x - 450) ft from the foot of the hill. His angle of elevation is

40 + 18 = 58°.

By definition, tan(58°) = h/(x - 450)

h = (x - 450) tan(58°) = 1.6003(x-450)

h = 1.6003x - 720.135 (2)

Equate (1) and (2).

1.6003x - 720.135 = 0.8391x 0.7612x = 720.135

x = 946.0523

From (1), obtain

h = 0.8391*946.0523 = 793.8 ft

Answer: The height of the hill is approximately 794 ft (nearest integer)

6 0

2 years ago

Mmmmmmmmmmmmmmmmmmhmmmmmmmmmmm

Stells [14]

Answer:

14.07

Step-by-step explanation:

first multiply x by y

5 0

3 years ago

Write 0.614¯¯¯ as a fraction in simplest form.

Verizon [17]

Answer:

307/500

Step-by-step explanation:

307 is a prime number.

The way to find this out is to take 0.614 and multiply it by 1,000 because then it will be a natural number. 0.614*1,000=614.

now you take 614/1,000 because that's what you multiplied it by and simplify it.

614/2 and 1,000/2=307/500 and this cannot be simplified any more than this because 307 is a prime number.

5 0

2 years ago