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aleksklad [387]
3 years ago
9

HELP PLEASE SOMEONE

Mathematics
1 answer:
Rom4ik [11]3 years ago
8 0
f(x)= \frac{x}{2} -2 and g(x)=2 x^{2} +x-3
(f+g)(x) = \frac{x}{2} -2+2 x^{2} +x-3
combining like terms gives you answer choice B

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Give the discriminant of the equation 0 = −x2+6x−9<br>please answer
Brut [27]

Answer:

x = 3

Steps:

- ( {x}^{2}  - 6x + 9) = 0

-  {(x - 3)}^{2}  = 0

{(x - 3)}^{2}  = 0

x - 3 = 0

There you go!

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3 years ago
In a batch of 890 calculators, 12 were found to be defective. What is the probability that a calculator chosen at random will be
jarptica [38.1K]
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4 0
3 years ago
A supervisor finds the mean number of miles that the employees in a department live from work. Which mileage is within a z-score
Vikentia [17]
The z-score tells you how many standard deviations from the mean. 

<span>1.5 * 3.6 = 5.4 miles </span>

<span>So anything within 5.4 miles of the average (29). </span>

<span>The range would be: </span>
<span>29 - 5.4 = 23.6 </span>
<span>to: </span>
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<span>23.6 ≤ x ≤ 34.4 </span>

<span>Answer: </span>
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7 0
4 years ago
Read 2 more answers
Help me solve these step by step please !!!
Anettt [7]

Answer:

#2) is 25

Step-by-step explanation:

the best way to solve any of theses is in the order of pemdas:

●parentheses

●exponents

●multiplication & division

●addition & subtraction

for example lets do #2

9+ (2^2)(4)

the first parenthesis has exponents so you'd do it first. 2^2 (two two times) is 4

9+(4)(4)

when two parentheses are next to Each other you multiply. 4x4 is 16

9+16

then finally you add

25

use these steps for the rest. just comment if you have any questions

7 0
4 years ago
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son4ous [18]

Answer:

its the equal sign which the hip hop give me a pop says the equations equal

Step-by-step explanation:

4 0
3 years ago
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