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Angelina_Jolie [31]
2 years ago
7

I just need help it seems easy but not for me

Mathematics
2 answers:
damaskus [11]2 years ago
4 0

Answer:

7 paperbacks, 2 hardcovers

Step-by-step explanation:

2x8=16

7x5=35

35+16=51

Hope this answers your question.

Nezavi [6.7K]2 years ago
3 0
Two hand covers and seven paperbacks
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PLEASE HELP ME ASAP!!!
weqwewe [10]

Answer:

D

Step-by-step explanation:

a number expressed in standard form is

a × 10^{n} : 1 ≤ a < 10 and n is an integer

given

(7.5 × 10^{7} )(2 × 10³)

= 7.5 × 2 × 10^{(7+3)}

= 15 × 10^{10}

= 1.5 × 10^{1} ×10^{10}

= 1.5 × 10^{(1+10)}

= 1.5 × 10^{11}

4 0
2 years ago
Can someone please help me with this?
Bad White [126]
I can’t see it sorry
7 0
3 years ago
Read 2 more answers
Pls help will give brainlest answer
Alexxandr [17]

Answer:Positive

Step-by-step explanation:

I just answerEd it

7 0
2 years ago
Johnni guessed on all 8 questions of a multiple-choice quiz. Each question has 4 answer choices. What is the probability that sh
Ne4ueva [31]

Answer: The answer is B. 0.208.

Step-by-step explanation: Just took the test on e2020

3 0
3 years ago
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
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