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Natali [406]
3 years ago
12

Write words to match the expressions

Mathematics
1 answer:
velikii [3]3 years ago
3 0
Cat-Pat
Mat-Rat
Soup-Group
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Please put a serious answer
aksik [14]

Answer:

x=12

Step-by-step explanation:

9x-14=2(3x+11)

9x-14=6x+22

9x-6x=22+14

3x=36

x=36/3=12

8 0
3 years ago
A manufacturer of tires wants to advertise a mileage interval that ex-cludes no more than 10% of the mileage on tires he sells.
Sergio039 [100]

Answer:

This mileage interval is from 30120 miles and higher.

Step-by-step explanation:

Problems of normally distributed samples can be 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:

All he knows is that, for a large number of tires tested, the mean mileage was 25,000 miles, and the standard deviation was 4000 miles. This means that \mu = 25000, \sigma = 4000.

A manufacturer of tires wants to advertise a mileage interval that ex-cludes no more than 10% of the mileage on tires he sells. What interval wouldyou suggest?

The lower end of this interval is X when Z has a pvalue of 0.90.  That is Z = 1.28.

So

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

1.28 = \frac{X - 25000}{4000}

X - 25000 = 4000*1.28

X = 30120

This mileage interval is from 30120 miles and higher.

7 0
2 years ago
HELP PLS<br> Classify the triangle by its angles &amp; sides if ∠A = 85 &amp;
omeli [17]
The angle of the triangle would be 72
3 0
2 years ago
Julio has $40.00 to rent bikes for himself and a friend for 5 hours. Each bike
tia_tia [17]

Step-by-step explanation: if its asking  how much money he spends in total you multiply

$3.25 x 5 = 16.25

4 0
2 years ago
Read 2 more answers
8. If BD=BC, BD = 5x -26, BC = 2r + 1, and AC = 43, find AB.
charle [14.2K]

Answer:

24

Step-by-step explanation:

BD=DC

5x-26=2x+1

5x-2x=1+26

3x=27

x=9

BC=2x+1

=2*9+1

BC =19

so AB=AC-BC

AB=43-19

AB=24

8 0
2 years ago
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