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inn [45]
3 years ago
11

Let a, b, and c be constants, and let x be a variable. Which of the following is

Mathematics
1 answer:
Nonamiya [84]3 years ago
5 0

Answer:

C

Step-by-step explanation:

We have:

a(x+b)

Where a<0.

We would like to solve for a. So, let’s divide both sides by a.

Notice that a<0. Therefore, a is negative. Hence, we must flip the sign since we are dividing by a negative. This yields:

x+b>\frac{c}{a}

Now, we will subtract b from both sides. Therefore, our inequality is:

x>\frac{c}{a}-b

Hence, our answer is C.

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To create a giant gemstone, sara first made two identical square pyramids that each had a base area of 100 square inches. Then s
inysia [295]

Answer:

8 inches.

Step-by-step explanation:

From the statement we have that they first made two identical square pyramids, each with a base area of 100 square inches.

Ab = s ^ 2 = 100

Therefore each side would be:

s = (100) ^ (1/2)

s = 10

So, side of the square base = 10 inches

Then they tell us that they glued the bases of the pyramids together to form the precious stone. The surface area of the gemstone is 520 square inches, so for a single pyramid it would be:

Ap = 520/2 = 260

For an area of the square pyramid we have the following equation:

Ap = 2 * x * s + s ^ 2

Where x is the height of each triangular surface and s is the side of the square base

Replacing we have:

260 = 2 * x * 10 + 10 ^ 2

20 * x + 100 = 260

20 * x = 160

x = 160/20

x = 8

Therefore, the value of x is 8 inches.

5 0
3 years ago
How much time is it from 3:45pm to 5:15pm
Leokris [45]
1 hour and 30 minutes because when you subtract those you will get that answer
4 0
3 years ago
Read 2 more answers
Can someone help me out?
Bingel [31]

Answer: It would be C

Step-by-step explanation:

because on Sat. there were 80 discs and on Mon. there were 55 discs, so 55-80=25 and C is your answer

6 0
3 years ago
Read 2 more answers
Whats the powerpoint equation to 86.4
astraxan [27]

Answer:

26 (:

Hope this helps

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
A company sells sneakers and has a revenue that can be represented by the function R(s) = 80s – s2, where s represents the numbe
Harman [31]

Answer:

the second one is the answer

6 0
2 years ago
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