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3 years ago

Write the equation of a line with the given slope and y intercept. m = 4 b = -2

Mathematics

1 answer:

Westkost [7]3 years ago

7 0

Answer: y=4x-2

Step-by-step explanation:

Use the y=mx+b template to write the equation out. M is the slope which should be in front of x. This is why y=4x-2 is correct

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. A triangle has side lengths of 8, 7, and 14. To the nearest tenth of a degree find the measure of the angle opposite the side

4vir4ik [10]

Given:

The measure of three sides of a triangle are 8, 7 and 14.

To find:

The measure of the angle opposite the side of length 8.

Solution:

According to the Law of Cosine:

$\cos A=\dfrac{b^2+c^2-a^2}{2bc}$

Let a=8, b=7 and c=14, then by using Law of Cosine, we get

$\cos A=\dfrac{7^2+14^2-8^2}{2(7)(14)}$

$\cos A=\dfrac{49+196-64}{196}$

$\cos A=\dfrac{181}{196}$

Taking cos inverse on both sides.

$A=\cos^{-1}\dfrac{181}{196}$

$A=22.561328$

$A\approx 22.6$

Therefore, the measure of the angle opposite the side of length 8 is 22.6 degrees.

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3 years ago

James knows that when he walks, he takes about 120

Tpy6a [65]

Answer:

speed of James is: 3.75 miles/hour.

Step-by-step explanation:

We need to find the speed of James in miles per hour(mi/hr)

we know that 1 mile=5280 feet

James takes 120 steps in 1 minute so he will cover 120×60 steps in 1 hour.

i.e. he takes 7200 steps in 1 hour.

also each step of James=2.75 feet

total distance covered by James in 1 hour=2.75×7200 feet=19800 feet

$19800feet=\frac{19800}{5280} miles=3.65miles$

hence speed of James= (distance covered by james in 1 hour)/1 hour

speed of James=3.75 miles/hour.

Thanks!!

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7 0

2 years ago

Read 2 more answers

Six-four million, one hundred eighty-six thousand, three hundred square miles in standard form

Zielflug [23.3K]

Answer:

64,186,300 square miles

I'm sorry if I misunderstood.

Good luck mate! :)

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Remember to try your best every day!

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3 years ago

60 POINTS!!!!!!!!!! If each square of the grid below is 0.5 cm by 0.5 cm, how many centimeters (cm) are in the perimeter of the

Aleks04 [339]

Answer:

21 cm

Step-by-step explanation:

The perimeter is the length of the outside of a shape. In this case, we can simply add up all the edges and multiply by .5(the length of one edge).

Horizontal Edges: 22

Vertical Edges: 20

Total: 42

Perimeter = $42 * 0.5 = 21 cm$

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3 years ago

The cost of a regular price ticket to a saint Louis cardinals baseball game was $60. During the World Series, the price increase

Ray Of Light [21]

So regular is 60
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so
60+(60(2/5))=x
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3 years ago

Read 2 more answers

Write the equation of a line with the given slope and y intercept. m = 4 b = -2​

Write the equation of a line with the given slope and y intercept. m = 4 b = -2