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sweet [91]
3 years ago
9

Solve x2 - x - 30 = 0 by factoring.

Mathematics
1 answer:
likoan [24]3 years ago
4 0

Answer:

x=6, x=-5

Step-by-step explanation:

Factoring this quadratic gets you (x-6)(x+5)=0, for this to be possible, either x-6 or x+5 has to be zero, so therefor x is 6, or x is -5

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What are the possible degrees for the polynomial function
WARRIOR [948]

it can be 2 or more real numbers.

7 0
3 years ago
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Beth is paid $225 per week plus a commission of $20 per sale. This week she wants to earn at least $650. If s represents the min
Dafna11 [192]

Answer:

b

Step-by-step explanation:

the answer is b because she gets paid 225 per week plus every sale so it going to be 245 she still needs 405 to get 650

Hope this helps

4 0
3 years ago
Read 2 more answers
ky has 3 times more books than grant and grant has 6 fewer books than Jaime if the total combined number of books is 176 how man
sergiy2304 [10]
Number of books each of them have:

Jaime: x
Grant: x - 6
Ky: 3 (x - 6)

There are 176 books in total, so we can write it down as:

176 = x + x - 6 + 3 (x - 6)
176 = x + x - 6 + 3 * x + 3 * (-6)
176 = x + x - 6 + 3x - 18
176 = 2x - 6 + 3x - 18
176 = 5x - 24                        / + 24 (both sides)
5x = 200                              / ÷ 5 (both sides)
x = 40

Doublecheck:

Jamie: 40
Grant: 40 - 6 = 34
Ky: 3 (40 - 6) = 3 * 34 = 102

102 + 34 + 40 = 176, so it's correct :)
5 0
3 years ago
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(Hurry fast I don’t have a lot of time pls) Tatiana wrote the steps that are commonly used to solve a system of equations with t
igor_vitrenko [27]

Answer:

1. Multiply the value of the first variable by one of the original equations to solve for the second variable.

2. Solve for one of the variables.

3. Substitute the value of the known variable into one of the original equations to solve for the unknown variable.

Step-by-step explanation:

3 0
3 years ago
Which of the following relations is NOT a function?
topjm [15]
According to Wikipedia: "<span>In mathematics, a function is a relation between a set of inputs and a set of permissible outputs with the property that each input is related to exactly one output."

So based of this we need to look for a set where one of the x values or the y values is the same, and the other number is different.

Answer:
B.
(1,4) and (1,1) both have the same x, but different y!
</span>
5 0
3 years ago
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