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lianna [129]
3 years ago
13

Evaluate the expression for p=-2, q=6, and r= -10. -p2-4q+r2 The answer is ?

Mathematics
1 answer:
melomori [17]3 years ago
3 0

Answer:

-2^2-4(6)+-10=

4-24-10=

4-35=-30

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The sum of Ryann and Lori's ages is 96. Lori's age is<br> seven times Ryann's age. How old is Ryann?
Nata [24]

Answer:

R = 12

L = 84

Step-by-step explanation:

R + L =96

L = 7R

R = 1R

L = 7R

1 R + 7R = 8R

R = 12

L = 84

hope it helps,

5 0
3 years ago
Please Help me with this exam question.
mel-nik [20]

Based on the function given, the domain of f(x) is -18 ≤ x ≤ 10 and the range is 16 ≤ f(x)  ≤ 95

<h3>What are the domain and range?</h3>

The domain of a function is found by looking at a graph from left to right. This means that x will be equal to or greater than the smallest x value and less than or equal to the largest x value.

Domain is therefore:

-18 ≤ x ≤ 10

The range can be found by looking at the y value. The value if f(x) will be equal to or greater than the smallest y value and less than or equal to the largest y value.

Range is:

16 ≤ f(x)  ≤ 95

Find out more on range and domain at brainly.com/question/25915612

#SPJ1

8 0
2 years ago
Which numbers below represents a repeating decimal? Check all the boxes that apply.*
omeli [17]

Answer:

-2/3

Step-by-step explanation:

-2/3= -.066666667

-3/5= -0.6

3/10= 0.3

11/20= 0.55

6 0
3 years ago
Solve for x:<br> <img src="https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7Bx%2By%7D%20-%5Cfrac%7B3x-3y%7D%7B2x-3y%7D%20%2A%28%5Cfrac%7B
zlopas [31]

Answer:

x = -(3 y)/2

Step-by-step explanation:

Solve for x:

-2 x - 3 y + 3/(x + y) - (3 x - 3 y)/(x^2 - y^2) = 0

Simplify and substitute z = x + y.

-2 x - 3 y + 3/(x + y) - (3 x - 3 y)/(x^2 - y^2) = -y - 2 (x + y)

= -y - 2 z:

-y - 2 z = 0

Multiply both sides by -1:

y + 2 z = 0

Subtract y from both sides:

2 z = -y

Divide both sides by 2:

z = -y/2

Substitute back for z = x + y:

x + y = -y/2

Subtract y from both sides:

Answer:  x = -(3 y)/2


4 0
3 years ago
Solve <br> k-3/4=2/5<br><br> asap
nordsb [41]

Answer:

k  =  23/20

Please give brainliest!

6 0
3 years ago
Read 2 more answers
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