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NISA [10]
3 years ago
6

Tell whether the ratios form a proportion. 1/3, 7/21

Mathematics
1 answer:
Vilka [71]3 years ago
6 0
I don’t think it does
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Help please!!<br> Serious answers only | multiple choice
Zarrin [17]
The option A is the right answer
6 0
3 years ago
What is the measure of &lt;1?
Paraphin [41]

Answer:

the measure of ∠1 is 92 degrees

Step-by-step explanation:

6 0
2 years ago
No links please. Fill in the blanks. 67ns=[?]x10^[?]s
cluponka [151]

Using scientific notation, it is found that:

67 ns = 6.7 \times 10^{-8}s

<h3>What is scientific notation?</h3>

A number in scientific notation is given by:

a \times 10^b

With the base being a \in [1, 10).

In this problem, the amount is of 67 ns.

Each ns has 10^{-9} seconds, hence:

67ns = 67 \times 10^{-9}s

We want the base between 1 and 10(exclusive), hence, we move the decimal digit one digit to the left and add one to the exponent, and the representation is:

67 ns = 6.7 \times 10^{-8}s

You can learn more about scientific notation at brainly.com/question/16394306

7 0
2 years ago
Solve this polynomial:
nadezda [96]

Answer:

  4ab +10b

Step-by-step explanation:

Perhaps you want to simplify the expression.

  (2.5ab+14b)-(-1.5ab+4b)=2.5ab+14b+1.5ab-4b\\\\=ab(2.5+1.5)+b(14-4)=\boxed{4ab+10b}

8 0
2 years ago
30 points if you aswer this<img src="https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B3%7Dx%20%5Cfrac%7B3%7D%7B4%7D%20x%5Cfrac%7B4%7D%7B
Licemer1 [7]

Answer:

1/5

Step-by-step explanation:

1/3 x 3/4 x 4/5

1/3 x 3/4 = 3/12

3/12 x 4/5 = 12/60

12/60 = 1/5

8 0
2 years ago
Read 2 more answers
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