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3 years ago

GIVING BRAINLIEST!!! DUE TODAY!!! LAST QUESTION!!!

Mathematics

2 answers:

Lena [83]3 years ago

7 0

Answer:

C = -10x+3

Step-by-step explanation:

Start by simplifying the target expression which is = -10x+3

A. -10x+9

B. 8x-9

C. -10x+3

D. -10x-3

After simplifying all the expressions, you can see the answer is C.

Marysya12 [62]3 years ago

6 0

Answer:

i say A

Step-by-step explanation:

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How do you find the coordinates of a missing side of a square (axes)

Debora [2.8K]

Answer:So first, I found the length of the sides and the diagonal of the square, which are 18−−√ and 6 respectively. By graphing, I know the solution is (0,−1). Then, I assume that since the length between (3,2) and (−3,2) is the diagonal, then the distance between (0,5) and the remaining vertex must be the diagonal too. And since the length of the side is 6, then the distance between the vertex and either (3,2) or (−3,2) must be 6. So:

(x−3)2+(y−2)2−−−−−−−−−−−−−−−√=18−−√

(x−0)2+(y−5)2−−−−−−−−−−−−−−−√=6

Which gives (after a bit of cleaning up):

x2+y2−10y=11

x2−6x+y2−4y=5

Then, replacing the second expression into the first one:

x2−6x+y2−4y=5⇒x2=5+6x−y2+4y

5+6x−y2+4y+y2−10y=11

5+6x+4y−10y=11

6x−6y+6

x−y=1

x=1+y

Up to this point, I know I'm not entirely wrong because the expression is true for the actual coordinates of the vertex, because 0=1+(−1) is true. But I wouldn't know how to proceed if I hadn't known the answer beforehand. I need to find both x and y, is there a linear equation I'm missing to find the exact coordinates of the last vertex? Is my process okay or is there a simpler way to do it?

Step-by-step explanation:

6 0

3 years ago

O NEED HELP QUICK!!!

Wittaler [7]

Answer:

the third one is your answer

Step-by-step explanation:

5 0

3 years ago

What is the equation for area of a circle

zavuch27 [327]

C=pi×r2 if there is only the diameter then take half of it

3 0

3 years ago

In quadrilateral PQRS, the exterior angle at Q measures 155 and PS = QR. What measure of ∠PSR would confirm that PQRS is a paral

lara [203]

Answer:

The measure confirming that PQRS would be 25

Step-by-step explanation:

It's easier if you draw it down.

1. We need to make this shape a parallelogram and the way we will do that is by making angle Q and angle S the same, because in parallelograms those opposite angles are required to be the same.

155 \

P \ -------------------------\ Q

\ 25 \

\ \ so that's your shape

S \______________\ R

2.We were given that the exterior angle of Q measures 155, and since exterior and interior angles combined make 180, then we can assume that the interior angle of Q is 25.

3. As mentioned before, in a parallelogram, opposite angles are the same and therefore PSR (which is just asking for the middle letter, S) is equal to 25 because Q is also 25.

7 0

3 years ago

One week, Kerry travels 125 miles and uses 5 gallons of gasoline. The next week, she travels 175 miles and uses 7 gallons of gas

SpyIntel [72]

The question is incomplete, the complete question is here:

One week , Kerry travels 125 miles and uses 5 gallons of gas. next week she travels 175 miles and uses 7 gallons of gas . what best describes the function that can be used to represent m, the number of miles traveled, and g, the number of gallons used

The best function represents the relation between m and g is m = 25 g

Step-by-step explanation:

The given is:

One week, Kerry travels 125 miles and uses 5 gallons of gasoline
The next week, she travels 175 miles and uses 7 gallons of gasoline
m represents the number of miles traveled by g gallons

We need to write a function that can be used to represent m and g

∵ Kerry travels 125 miles and uses 5 gallons of gasoline in

one week

∴ The rate = 125 ÷ 5 = 25 miles per gallon

∵ She travels 175 miles and uses 7 gallons of gasoline in

next week

∴ The rate = 175 ÷ 7 = 25 miles per hour

- That means the rate is constant

∴ The relation between the number of miles and the number of

gallons used is linear

- The linear relation is y = k x, where k is the constant of relation

∵ m is the number of miles

∵ g is the number of gallons

∵ 25 is the constant rate

∴ m = 25 g

The best function represents the relation between m and g is m = 25 g

Learn more:

You can learn more about the linear function in brainly.com/question/9801816

#LearnwithBrainly

7 0

3 years ago