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Romashka-Z-Leto [24]
3 years ago
6

I need help mainly the anwsers​

Mathematics
1 answer:
Angelina_Jolie [31]3 years ago
3 0

Answer:

3(-2)+2= -4

3(3)+2= 11

3(-0.5)+2= .5

3(1 1/2)+2=6.5

Step-by-step explanation:

just plug them in as x and you get the answer

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Julie says I added three odd numbers and my answer was 50 explain why Julie cannot be correct
ANTONII [103]
Julie cannot be right. That's because if you add three odd numbers together, <em>you always get an odd number. </em>The number 50 is an Even number.

Let's try adding 3 odd numbers together a couple of times...
3 + 3 + 3 = 9 
5 + 1 + 5 = 11 
7 + 3 + 5 = 15 
We tried 3 examples, we could not get any even number. So, Julie's claim is wrong. 

8 0
3 years ago
Read 2 more answers
The distances male long jumpers for State College jump are approximately normal with a mean of 263 inches and a standard deviati
Effectus [21]

Answer:

His jump was of 272.45 inches

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 263, \sigma = 14

75th percentile

X when Z has a pvalue of 0.75. So X when Z = 0.675

Z = \frac{X - \mu}{\sigma}

0.675 = \frac{X - 263}{14}

X - 263 = 14*0.675

X = 272.45

His jump was of 272.45 inches

7 0
3 years ago
Read 2 more answers
SOMEONE PLEASE HELP ME ASAP PLEASE!!!​
Kaylis [27]

Answer:

A = 45 units^2

Step-by-step explanation:

This is a trapezoid

A = 1/2 (b1+b2) h

b1 is the top = 7

b2 is the bottom = 11

h = 5

A = 1/2 ( 7+11) *5

A = 1/2 ( 18)*5

A = 45 units^2

7 0
3 years ago
What is the value of -2xy if x = -1 and y = 6?<br><br> 8<br> 12<br> 26<br> -12
Elena L [17]
12 would be your answer
-2*-1= 2
2*6=12
so 12
3 0
3 years ago
The table below shows the cost per pound of different vegetables.
jolli1 [7]

Answer:

16

Step-by-step explanation:

i got it right on the test

5 0
3 years ago
Read 2 more answers
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