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lora16 [44]
3 years ago
6

Write an equation of a line through (2,7.5) with an x-intercept of -1

Mathematics
1 answer:
Illusion [34]3 years ago
4 0

Answer:

<h2>y = (5/2)x + 5/2</h2>

Step-by-step explanation:

The coordinates of the given x-intercept are (-1, 0).

As we move to the right from (-1, 0) to (2. 7.5), x increases by 3 and y by 7.5.

Thus, the slope of this line is m = rise / run = 7.5 / 3, or 75 / 30, or 5/2.

Thus, starting from y = mx + b, we have:

7.5 = (5/2)(2) + b, or

7.5 = 5 + b

Thus, b = 2.5, and the equation is

y = (5/2)x + 5/2

check:  Is 7.5 = (5/2)(2) + 5/2 true?

             Is 7.5 = 5 + 5/2 true?  YES

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10 km, 7 km, 13 km<br> Is the triangle acute, right, or obtuse
LiRa [457]

Answer:

The triangle is acute.

Step-by-step explanation:

This is because each side is less than 90 degrees which would make the angles acute which would make the whole triangle acute.

8 0
3 years ago
Help me I need help I need help
Licemer1 [7]

Answer:

\Huge\boxed{131.88}

Step-by-step explanation:

Hello There!

First thing we want to do is find the formula for circumference of a circle

C = 2(3.14)r

where r = radius

we are given the diameter so we have to convert that into radius to do so we just divide by 2

42/2=21 so the radius equals 21 inches

now we just plug in 21 for r in the formula

C = 2(3.14)21\\2*3.14=6.28\\6.28*21=131.88\\C=131.88

So we can conclude that the circumference of the circle is 131.88 inches

3 0
3 years ago
Whats the quotient of simplest from for 5 wholes divide by 2\9 ?
posledela
Keep Change Flip!!!
Keep: the first fraction 5 or 5/1
Change: Division sign to multiplication sign
Flip (reciprocal): the second fraction
So you get 5/1*9/2= 45/2 which simplified to 22 1/2
7 0
3 years ago
Find the length of the missing side<br><br> a) 17 cm<br> b) 22 cm<br> c ) 15 cm<br> d) 13 cm
Black_prince [1.1K]

Answer:

Step-by-step explanation:

You just have to use the Pythagorean theorem which is A squared plus B squared = C squared. So you have A and B already so just put it in an equation

A^{2} +B^2=C^2\\5^2+12^2=C^2\\169=C^2\\13=C

5 0
3 years ago
Read 2 more answers
Threre are 25 streets in squaresville each day there 5 police officers working if all of the officers want to patrol the same nu
salantis [7]

Answer:

you would divide 25 by 5.

Step-by-step explanation:

each of the 5 officers would patrol 5 streets with a final of 5 x 5 = 25.

5 0
3 years ago
Read 2 more answers
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