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3 years ago

HELP ASAP. please help the best answer gets brainliest

Mathematics

2 answers:

tatuchka [14]3 years ago

7 0

She should of crossed multipled

Aleonysh [2.5K]3 years ago

4 0

Answer:

She should have cross multiplied.

Step-by-step explanation:

-2.125, or 17/8, is the correct answer

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The probability of event A is 0. 48, the probability of event A and B is 0. 21, and the probability of events A or B is 0. 89. W

Mice21 [21]

Probabilities are used to determine the chances of an event

The probability of event B is 0.62

The probabilities are given as:

$\mathbf{P(A) = 0.48}$

$\mathbf{P(A\ and\ B) = 0.21}$

$\mathbf{P(A\ or\ B) = 0.89}$

To calculate the probability of event B, we make use of the following formula

$\mathbf{P(A\ and\ B) = P(A) + P(B) - P(A\ or\ B)}$

So, we have:

$\mathbf{0.21 = 0.48 + P(B) - 0.89}$

Collect like terms

$\mathbf{P(B)= -0.48 +0.21 + 0.89}$

$\mathbf{P(B)= 0.62}$

Hence, the probability of event B is 0.62

Read more about probabilities at:

brainly.com/question/11234923

7 0

3 years ago

9. Which type of angle pairs are LSM and 2 <br> 10. Which angle forms a vertical pair with 1?

scoray [572]

$\large \mathfrak{Answer : }$

9. Angle LSM and Angle 2 are pair of vertical opposite angles which are equal.

10. Angle forming vertical pair with Angle 1 is Angle LSO (Angle 3).

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2 years ago

(GIVING BRAINLIYEST)<br> 7. what is the volume of these 2 objects

babunello [35]

figure #1

smaller part

4x7x2= 56m

larger part

4x3x7= 84m

84+56= 140m³

figure #2

smaller part

2x4x3= 24m

larger part

4x4x12= 192m

192+24= 216in³

6 0

3 years ago

Read 2 more answers

What is the answer to this algebra problem

Sergeu [11.5K]

The problem said : -10,8 =-2 and -15,9=-6

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3 years ago

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The head of maintenance at XYZ Rent-A-Car believes that the mean number of miles between services is 2135 miles, with a variance

stiv31 [10]

Answer:

0.36878

Step-by-step explanation:

Given that:

Mean number of miles (m) = 2135 miles

Variance = 145924

Sample size (n) = 40

Standard deviation (s) = √variance = √145924 = 382

probability that the mean of a sample of 40 cars would differ from the population mean by less than 29 miles

P( 2135 - 29 < z < 2135 + 29)

Z = (x - m) / s /√n

Z = [(2106 - 2135) / 382 / √40] < z < [(2164 - 2135) / 382 / √40]

Z = (- 29 / 60.399503) < z < (29 / 60.399503)

Z = - 0.4801364 < z < 0.4801364

P(Z < - 0.48) = 0.31561

P(Z < - 0.48) = 0.68439

P(- 0.480 < z < 0.480) = 0.68439 - 0.31561 = 0.36878

= 0.36878

3 0

2 years ago