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daser333 [38]
3 years ago
11

Please help me !!!!!! I will mark brainlest!!!

Mathematics
1 answer:
AysviL [449]3 years ago
6 0

Answer: D

Step-by-step explanation:

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Twenty words were randomly selected from two textbooks. Each set gives the number of letters in each of the twenty words for tha
Alborosie

Answer:

k = 13The smallest zero or root is x = -10

Step-by-step explanation:

you can write "x^2" to mean "x squared"

f(x) = x^2+3x-10

f(x+5) = (x+5)^2+3(x+5)-10 ... replace every x with x+5

f(x+5) = (x^2+10x+25)+3(x+5)-10

f(x+5) = x^2+10x+25+3x+15-10

f(x+5) = x^2+13x+30

Compare this with x^2+kx+30 and we see that k = 13

Factor and solve the equation below

x^2+13x+30 = 0

(x+10)(x+3) = 0

x+10 = 0 or x+3 = 0

x = -10 or x = -3

The smallest zero is x = -10 as its the left-most value on a number line.

7 0
3 years ago
In how many ways can four aces be drawn from a deck of cards? (Order is not important.)
natka813 [3]
Let's imagine that we have in the deck 52 cards. So what we need to do is to make a kind of "progression".So let me explain this by doing the procedure. we can use is like this: 
4/52 * 3/51 * 2/50 * 1/49 = 
<span>24 / 6497400 = </span>
<span>1 / 270725 </span>
<span>3.694e-6</span>
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3 years ago
At the corner store, Nico bought 5 pencils for $0.10 each and 3 pens for $0.50 each. He used t to represent the sales tax, in do
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Answer:

C. He should have added t instead of subtracting t.

Step-by-step explanation:

3 0
3 years ago
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Help Me with this math work.
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Step-by-step explanation:

-2-2

8 0
3 years ago
jordan got 27 out of 90 correct in his test. what fraction of the marks did he get wrong ? give your answer in the simplest form
Alenkinab [10]

Answer:

63/90

Step-by-step explanation:

just subtract 27 from 90 and you will get 63 so jordan got 63 questions wrong out of 90 which means 63/90.

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3 years ago
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