All categories

3 years ago

What is the best solutionto this equation? x+8= -2 A.-10 B.-6 C.6 D.10

Mathematics

1 answer:

Oksi-84 [34.3K]3 years ago

4 0

Answer:

Step-by-step explanation:

x + 8 = -2

x = -10

the answer is a

You might be interested in

Solve: x ÷ 0.6 = 8.9 5.34 9.5 8.3 0.07

Basile [38]

Answer: x = 0.6 ÷ 8.9 = 5.34

Step-by-step explanation:

5 0

3 years ago

If my cat ate 1 to 3 cans of wet food what is the ratio in this statement?

Minchanka [31]

1 can of wet food
_
3 cans of wet food
Or
1:3

8 0

3 years ago

Read 2 more answers

olice response time to an emergency call is the difference between the time the call is first received by the dispatcher and the

yan [13]

Answer:

0.7823 = 78.23% probability that the response time is between 3 and 9 minutes.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the z-score 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 p-value, we get the probability that the value of the measure is greater than X.

Mean of 7.2 minutes and a standard deviation of 2.1 minutes.

This means that $\mu = 7.2, \sigma = 2.1$

For a randomly received emergency call, find the probability that the response time is between 3 and 9 minutes.

This is the pvalue of Z when X = 9 subtracted by the pvalue of Z when X = 3.

X = 9

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

$Z = \frac{9 - 7.2}{2.1}$

$Z = 0.86$

$Z = 0.86$ has a pvalue of 0.8051

X = 3

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

$Z = \frac{3 - 7.2}{2.1}$

$Z = -2$

$Z = -2$ has a pvalue of 0.0228

0.8051 - 0.0228 = 0.7823

0.7823 = 78.23% probability that the response time is between 3 and 9 minutes.

4 0

3 years ago

.For a hockey game, tickets are $220 for

Romashka [77]

Answer:

900 front row seats

Step-by-step explanation:

Tickets for front row seat = 220 dollars (y)

Cost of remaining seats ticket = 50 dollars (z)

Number of front row seats = x

Number of remaining seats = 2050 (w)

Total amount earned when stadium is full = 300,500 dollars (T)

so if we formulate this using our variables y,z,x,w and T problem it becomes:

y*x + z*w = T, which says the

Tickets for front row seat times Number of front row seats plus Cost of remaining seats ticket times Number of remaining seats gives us Total amount earned by the stadium.

220*x + 2050*50 = 300500

220*x = 300500-102500

220*x = 198000

divide both side by 220

x = 900

5 0

3 years ago

What is the area of this circle?

Talja [164]

Answer:

pie * r^2 bro where r= 10mi

7 0

2 years ago