What is the sum of r + s when r = –17.6 and s = 12.2? A. –29.8 B. –5.4 C. 5.4 D. 29.8

Answers

Answer 1

Answer: c. -5.4 -17.6+12.2= -5.4 because -17.6 goes first in the calculator but also its a negative

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On a blueprint of a house, 48 millimeters represents 7 meters. The length of the living room is 60 millimeters on the blueprint. what is the actual length

Answers

Here is the equation 48/7=60/x, 48÷7=6.8571428571. Now we know that every one meter in real life is equal to 6.8571428571 millimeters so, 60÷6.8571428571= 8.75 meters. The living room is 8.75 meters

Sarah is planning to spend a week at her friend’s summer house in Miami Beach. All meals will be provided by her friend’s parents, but Sarah still needs at least $500 to pay for her airfare and personal expenses for the week. She is selling bracelets and earrings to fund her trip. A graph representing this situation is shown below.Questions:
1.This region represents the combinations of bracelets and earrings that Sarah must sell in order to get a minimum of $500 profit to pay for her trip.
2.This region represents the area where Sarah sells a lot of earrings but not enough bracelets to reach her $500 goal.
3.This region represents the area where Sarah sells a lot of earrings but not enough bracelets to reach her $500 goal.

graph below ∨↓↓↓↓

Answers

Given:
x > 50
2x + 3y > 500

Bracelet is represented by x.
Earrings is represented by y.

Since x > 50 let us assume that x = 50 to get the value of y in the inequality equation.

2x + 3y > 500
2(50) + 3y > 500
100 + 3y > 500
-100    -100
3y > 400
  ÷3   ÷3
y   > 133 1/3

x > 50 ; y > 133 1/3

Let us assume that no bracelet was sold. x = 0 ; y =?

2x + 3y   > 500
2(0) + 3y   > 500
0 + 3y   > 500
÷ 3     ÷3
  y   > 166 2/3

Let us assume that no earrings was sold; y = 0 ; x = ?
2x + 3y   > 500
2x + 3(0) > 500
2x + 0 > 500
2x > 500
÷2   ÷2
x > 250

Let us assume that we sold have of each item.
x = 250/2 = 125 ; y = 166 2/3 ÷ 2 = 100

2x + 3y > 500
2(125) + 3(100) > 500
250 + 300   > 500
550   > 500

To get at least $500, Sarah needs to sell at least 100 bracelets and 100 earrings.

the first one is region 2 and the second is region 3 i think

NEED HELP ASAP.A linear function has a y-intercept of -12 and a slope of 3. What is the equation of the line?

Answers

Answer:

y = 3x - 12

Step-by-step explanation:

Hope This Helps!

Plz Mark Brainliest!

HELP ASAP PLEASEEE !!!!WILL GIVE BRAINLIEST
which equation represents the general form of a circle with a center at (-2 -3) and a diameter of 8 units ?
• x²+y²+4x+6y-51=0
•x²+y²-4x-6y-51=0
•x²+y²+4x+6y-3=0
•x²+y²-4x-6y-3=0

Answers

Answer:

it’s the 3rd one:)

Step-by-step explanation:

Answer:

In this situation, (h, k) = (-2, -3)
Radius = 8/2 = 4 units

Substitute them into the circle equation: (x - h)² + (y - k)² = r²

(x - (-2))² + (y - (-3))² = 4²

(x + 2)² + (y + 3)² = 4²

Now expand the equation:

(x + 2)² + (y + 3)² = 4²

(x + 2)(x + 2) + (y + 3)(y + 3) = 16

(x² + 2x + 2x + 4) + (y² + 3y + 3y + 9) = 16

x² + 4x + 4 + y² + 6y + 9 = 16

x² + y² + 4x + 6y + 13 - 16 = 0

x² + y² + 4x + 6y - 3 = 0

0.34 and 3/4 are equivalent.

True
False

Answers

False because 3/4 is equal to .75 which is not equivalent to .34 . Hope that helps!

Answer: False

3/4 of 1 is 0.75 because..
1 divided by 4 is 0.25
multiply that by 3
which is 0.75

Find the value of -7 - 8 - (-8) - 7.

Answers

-14 is the answer, cause i think the -(-8) crosses out the -8 cause -+-=+ and -7-7=-14, thats what ithink

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