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4 years ago

Write an addition equation that is represented by the model below.

Mathematics

1 answer:

katrin2010 [14]4 years ago

6 0

Answer:

Step-by-step explanation:

Okay I'm not sure but I found an article online that seemed explanatory so here ya go

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Lena [83]

Answer:

m<B = 141 degrees

Step-by-step explanation:

This shape is a heptagon meaning its angles should have a sum of 900 degrees.

we are given the degrees and we need to ad them up

148+90+120+129+130+142=749

then we subtract 749 from 900 which looks like

900-749=141

from subtracting 749 from 900 we get 141 hence we get our answer that m<B = 141 degrees

5 0

2 years ago

ali drove 268 miles using12 gallons of gas at this rate how many miles would he drive using 9 gallons of gas

Semenov [28]

Divide total miles driven by the total amount of gas used to find the number of miles per gallon.

Then multiply that by the number of gallons you want to find out:

268 miles / 12 gallons = 22.333 miles per gallon.

22.333 miles per gallon x 9 gallons = 201 total miles.

7 0

3 years ago

Which number is greater 35, 6.1

Ede4ka [16]

I think the answer is 35, but I’m not sure

7 0

3 years ago

A basketball coach kept stats for his team in free throw percentage and steals (among others). At the last game, Erin's free thr

Setler79 [48]

Answer:

Due to the higher z-score, she did better in the free throw category.

Step-by-step explanation:

Z-score:

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 question:

She did better in the category that she had the higher z-score:

Free-throws:

Her free throw percentage was 79%, which means that $X = 79$

The team averaged 87% from the free throw line with a standard deviation of 12, which means that $\mu = 87, \sigma = 12$ . So

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

$Z = \frac{79 - 87}{12}$

$Z = -0.67$

Steals:

She had 4 steals, which means that $X = 4$

Averaged 7 steals with a standard deviation of 3, which means that $\mu = 7, \sigma = 3$ . So

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

$Z = \frac{4 - 7}{3}$

$Z = -1$

Due to the higher z-score, she did better in the free throw category.

6 0

3 years ago

Help me plsss!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

MaRussiya [10]

Answer:

C.Infinitely many solutions

I solved by substitution

$2x+3y=12\\-3y-3y\\2x=-3y+12\\\frac{2x=-3y+12}{2} \\x=-\frac{3}{2} y+6$ $-6y=4x-24\\-6y=4(-\frac{3}{2} y+6)-24\\-6y=-6y\\-6y+6y=-6y+6y\\0=0\\$ Infinitely many solutions

8 0

3 years ago

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