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3 years ago

HELLPPPPPPPPPPP PLEASE

Mathematics

1 answer:

KiRa [710]3 years ago

3 0

Alright, so we plug (-2) in for x. (-2)^2 =4, and we can plug that in as 4(4)+(-2)+5. Next, 4*4=16, so we get 15+(-2)+5. After that, we get 15-2+5=18

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Help me with this please

Stels [109]

Answer:

the answer is 7, have a nice day

Step-by-step explanation:

7×6=42

3 0

3 years ago

Read 2 more answers

Repost bcs last one wasnt clear BUT PLEASE HELPP 5 MINS LEFT

Romashka [77]

Answer:

$m =13$

Step-by-step explanation:

Given

The attached dataset

Required

The mean absolute deviation

First, calculate the mean

$\bar x = \frac{\sum x}{n}$

So, we have:

$\bar x = \frac{42+40+39+76+71+55+68+65}{8}$

$\bar x = \frac{456}{8}$

$\bar x = 57$

The mean absolute deviation (m) is:

$m =\frac{1}{n} \sum|x - \bar x|$

So, we have:

$m =\frac{1}{8} (|42 - 57| + |40 - 57| + |39 - 57| + |76 - 57| + |71 - 57| + |55 - 57| + |68 - 57| + |65 - 57|)$

Using a calculator, we have:

$m =\frac{1}{8} (|-15| + |-17| + |-18| + |19| + |14| + |-2| + |11| + |8|)$

Remove absolute bracket

$m =\frac{1}{8} (15 + 17 + 18 + 19 + 14 + 2 + 11 + 8)$

$m =\frac{1}{8} *104$

$m =13$

<em>The mean absolute deviation is 13</em>

4 0

3 years ago

Explain how you know the right triangles

natita [175]

Answer:

They have 2 angle measures in common, so that means the third measure has to be the same.

Step-by-step explanation:

hope this helps

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3 years ago

Please help me. I need to finish this!

kkurt [141]

Answer:

3x + 19 = 10x - 23

7x = 42

X = 6

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3 years ago

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Leviafan [203]

Answer:

As the study time increases the test score increases

Step-by-step explanation:

Nonlinear because the points aren't going in a straight line, they points fluctuate over time

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3 years ago