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castortr0y [4]
3 years ago
13

Lauren woke up one morning and saw frost on the windows. It was -2°C outside. Later in the day, the frost melted. At 3 p.m. it w

as 9°C outside. Which expression represents the difference between the two temperatures?
Mathematics
1 answer:
Gennadij [26K]3 years ago
8 0

Answer:

9-(-2) or 9+2

Step-by-step explanation:

To find the difference of something, subtract one value from the other. It become addition because two negatives make a positive

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Please help me please I really need the answer worth 20 points
Sav [38]

Answer:

3:1, 24 gallons blue 8 gallons yellow

Step-by-step explanation:

Jenny will use 24 gallons of blue paint and 8 gallons of yellow paint

Their ratio is 24:8 = 3:1

8 0
2 years ago
Kira decorates the exterior faces of a gift box in the shape of a cube .What is the surface area in square inches of the gift bo
Gekata [30.6K]

Answer:

The surface area of the gift box that Kira decorates is 253.5\ in^{2}

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

A cube has six square faces

The surface area of a cube is equal to the area of the six squares faces

SA=6b^{2}

where

b is the length side of a cube

In this problem we have

b=6.5\ in

substitute

SA=6(6.5)^{2}

SA=253.5\ in^{2}

7 0
3 years ago
Perform the following translations on the giving figures.
Kazeer [188]

Answer:

(-3, +4)Q

(+4, +4)R

(+3, -4)T

(-4, -4)S

3 0
2 years ago
2x -20 = -30<br> What is x?
RSB [31]
Answer: x=-5

2x-20=-30
x-10=-15
+10 +10
x=-5

Explanation: first, you need to divide by 2 to both sides. then, add 10 to both sides.

You should get, x=-5.
8 0
2 years ago
Nancy found that x=1 is one solution to the quadratic equation (x 2)2=a. what is the value of a?
trasher [3.6K]

The value of the a in the quadratic equation is 4.

According to the statement

we have given that the x = 1 and the given equation is  (2x)^2=a

And we have to find the value of A here.

So, For this purpose, we know that the

A quadratic equation is an equation of the second degree, meaning it contains at least one term that is squared.

And the given quadratic equation is

(2x)^2 = a

we know that the x  = 1 and put the value of x in it then

(2(1))^2= a

(2)^2= a

a  = 4.

Now for rechecking of the value, put a = 4 in the given equation then

(2x)^2 = a

Put a  = 4

Then

(2x)^2 = 4

2x = 2

And the value of x become

x = 1.

Which equal to the given value of the x which is 1.

So, The value of the a in the quadratic equation is 4.

Learn more about Quadratic equation here

brainly.com/question/1214333

#SPJ4

7 0
2 years ago
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