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Yuri [45]
3 years ago
8

( wil give branliest) I need help. thank you

Mathematics
1 answer:
Lisa [10]3 years ago
7 0
Tbh 8778188778654789644477 I’m am a 90 old man
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A jar contains 2 black marbles and 1 red marble. Lisa randomly selects one marble, notes its color and then places it back in th
nasty-shy [4]

Answer :

the Answer is. (( B ))

6 0
3 years ago
Step by step plz <br> 2x^2 + x - 3
Aleks04 [339]

Answer:

x = 1 or x = -3/2

Step-by-step explanation:

Solve for x over the real numbers:

2 x^2 + x - 3 = 0

The left hand side factors into a product with two terms:

(x - 1) (2 x + 3) = 0

Split into two equations:

x - 1 = 0 or 2 x + 3 = 0

Add 1 to both sides:

x = 1 or 2 x + 3 = 0

Subtract 3 from both sides:

x = 1 or 2 x = -3

Divide both sides by 2:

Answer: x = 1 or x = -3/2

7 0
3 years ago
Question<br> What is the measure of JKL?<br> A. 186°<br> B. 174<br> C. 87<br> D. 267
irga5000 [103]
It’s A 186 and you’re welcome
5 0
3 years ago
Show your reasoning the answer is 168
Nina [5.8K]

Answer:because u multiplied the numbers then divide the triangle areas n The triangle

Step-by-step explanation:

7 0
3 years ago
Question 4 (5 points)
Inessa05 [86]

Answer:

Option C

Step-by-step explanation:

Given

Mean= μ=60

and

Standard Deviation= σ=5

In order to calculate the percentage of students between 55 and 65, we have to calculate z-score for both

z-score for 55=(55-60)/5  

=(-5)/5

=-1

The area to the left of z-score -1 is 0.1587

z-score for 65=(65-60)/5  

=5/5

=1

The area to the left of z-score 1 is 0.8413

Area between z-scores of 55 and 65=0.8413-0.1587

=0.6826

Converting into percentage

=0.6826*100

=68.26%

Option C is the correct answer ..  

4 0
3 years ago
Read 2 more answers
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