3 years ago

Please help me with this problem and if you can show your work

Mathematics

1 answer:

ella [17]3 years ago

7 0

Answer:

2.9

just answering wrong because i need points sorry

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The number 3.892 x 10/6 writing in standard

aniked [119]

To write the number is standard form we need to move the decimal point six times to the right, then:

$3.892\times x10^6=3,892,000$

therefore the answer is b.

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1 year ago

What is the probabilit spinning an A? В В A А B СА СС [?]

tekilochka [14]

25% chance because there are 8 total “slices” and there are 2 A’s.
2/8=1/4=25%

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3 years ago

A grade has 81 girls and 72 boys. The grade is spilt into groups that have the same ratio of boys to girls as the whole grade. H

MariettaO [177]

There are 81 girls to every 72 boys in total, which can be represented by 81/72, which put into decimal form, is 1.125. If you then take the number of boys in the group, 16, and multiply it by this number (because the problem states that the ratio is constant) you can find the number of girls in the group.

16*1.125=18

So there are 18 girls in a group with 16 boys.

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3 years ago

Read 2 more answers

Find the following when a = -1, b = 2, c = -1/4 (4b - 3)/(2a) -1

Katena32 [7]

We substitute the given into the equation
given: a=-1, b=2, c= $\frac{-1}{4}$
=( $\frac{4b-3}{2a}$ -1
= $\frac{4(2)-3}{2(-1)}$ -1
= $\frac{8-3}{-2}$ -1
= $\frac{5}{-2}$ -1
to continue, we can either find a common denominator or change the fraction to decimal.
Fraction to Decimal:
$\frac{5}{-2}$ =-2.5
Equation=-2.5-1=-3.5
OR Common Denominator:
= $\frac{5}{-2}$ $\frac{-1}{1}$ × $\frac{-2}{-2}$ (denominator should be -2=common)
= $\frac{5}{-2}$ + $\frac{2}{-2}$
= $\frac{7}{-2}$
which also = to -3.5

3 0

3 years ago

Please help - 30 points. I will mark the best answer Brainliest.

shutvik [7]

Answer:

(1,3) IS YOUR ANSWER

6 0

3 years ago

Please help me with this problem and if you can show your work​

Please help me with this problem and if you can show your work