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3 years ago

I need help with my math homework!!!!!! geometry

Mathematics

1 answer:

Nana76 [90]3 years ago

7 0

The answer to this question is 23. To solve this, write an equation to solve x, This equation will be 12x + 6 = 78. Subtract 6 from both sides to get 12x = 72. Next, divide both sides by 12 to get x = 6. Now, just plug in x for both angles. 4 times 6 is 24, minus 1 is 23. To check this, make sure the other angle (angle NRP) equals 55. 8 times 6 equals 48, plus 7 equals 55. I hope this helped! Could I possibly get brainliest?

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Is this right? plz help me

olga55 [171]

Answer:

no its the 3rd one

Step-by-step explanation:

thank me later

7 0

3 years ago

At a football game a vender sold a combined total of 240 sodas and hot dogs the number of sodas sold was three times the number

Sidana [21]

Answer:

60 hot dogs and 180 soda

Step-by-step explanation:

Soda was sold 3 times the number of hot dogs, and there were 240 in total.

So the equation would be:

3x + x = 240

3x being the number of soda and x being the number of hot dogs which like i sad earlier adds up to 240.

3x + x = 240

4x = 240

x= 60

60 being the amount of hot dogs and 3 time of soda would be 180 and adding them both up would be 240

8 0

3 years ago

Read 2 more answers

Simplify the expression:<br> 5 + 9f - 10 + 5

nirvana33 [79]

Answer:

You only have to sort (numbers with numbers and variables with variables) then do the operations (+/-).

Step-by-step explanation:

$5 + 9f - 10 + 5 \\ - 5 + 9f + 5 \\ 0 + 9f \\ 9f$

3 0

2 years ago

Read 2 more answers

The time for a professor to grade an exam is normally distributed with a mean of 16.3 minutes and a standard deviation of 4.2 mi

dem82 [27]

Answer:

62.17% probability that a randomly selected exam will require more than 15 minutes to grade

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:

$\mu = 16.3, \sigma = 4.2$