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egoroff_w [7]
3 years ago
13

Can someone help me with this

Mathematics
1 answer:
Sergeeva-Olga [200]3 years ago
5 0

Answer:

Step-by-step explanation:

6. 78-2(3+16) /4

(78-2x19)/4

( 78 -38)/4

40/4=10

7.

(66/11)3 -6*8

6x6x6 -48

216-48=168

8.

10/7+2(8-11/2)

10/7+2(8-5.5)

10/7+2*2.5

10/7+5

10/7 + 35/7

45/7 =

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What is 5,821 g = ___ dag
pogonyaev

Answer:

582.1

Step-by-step explanation:

3 0
1 year ago
A student wants to check six websites. Four of the websites are social and two are school-related. After checking just two sites
mash [69]

The approximate probability that she checked a social website first, then a school-related website is 0.267.

First step is to calculate the Total number of websites

Total number of websites=Number of school websites+Number of social websites

Total number of websites=2+4

Total number of websites=6

Second step

Probability of checking the social website first

Probability of checking social website=Number of social websites/Total number of websites

Probability of checking social website= 4/6

Third step

Since one social website is checked which means that she is left with 3 social website and 2 school websites

Total number websites=2+3

Total number websites=5

Forth step

Probability of checking social website=Number of school websites/Total number websites

Probability of checking social website=2/5

Fifth step

Probability= 4/6 x 2/5 = 0.2666

Probability=0.267(Approximately)

Inconclusion the approximate probability that she checked a social website first, then a school-related website is 0.267.

Learn more about probability here:brainly.com/question/25688842

6 0
3 years ago
Bonita deposited 1300 into a bank account that earned 5.75% simple interest each year. She earned $299 in interest before closin
worty [1.4K]

Answer:

For 4 years the money was in the account .

Step-by-step explanation:

Formula

Simple\ interest = \frac{Principle\times Rate\times Time}{100}

As given

Bonita deposited 1300 into a bank account that earned 5.75% simple interest each year.

She earned $299 in interest before closing the account.

Principle = $1300

Rate = 5.75%

Simple interest = $299

Putting all the values in the formula

299 = \frac{1300\times 5.75\times Time}{100}

Time= \frac{299\times 100}{1300\times 5.75}

Time= \frac{29900\times 100}{1300\times 575}

Time= \frac{2990000}{747500}

Time = 4 years

Therefore for 4 years the money was in the account .


8 0
3 years ago
Suppose the life of a particular brand of calculator battery is approximately normally distributed with a mean of 75 hours and a
Orlov [11]

Answer:

idek

Step-by-step explanation:

3 0
3 years ago
15 pts + brainliest to right/best answer
ZanzabumX [31]

Rewrite it in the form a^2 - b^2, where a = 2x and b = 5

(2x)^2 - 5^2

Use the Difference o Squares: a^2 - b^2 = (a + b)(a - b)

<u>(2x + 5)(2x - 5) </u>

6 0
3 years ago
Read 2 more answers
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