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3 years ago

8

Which values have exactly 2 significant figures? Check all that apply.

2 answers:

JulijaS [17]3 years ago

8 0

ANSWER

Options B, C and D have exactly 2 significant figures.

<u>EXPLANATION</u>

To see whether the numbers have exactly 2 significant figures, round all to 2 significant figures. The ones that remains the same have exactly 2 significant figures.

$302\approx 300$ yards to 2.s.f

$980\approx 980$ gallons to 2.s.f

$1200\approx 1200$ feet to 2.s.f

$84\approx 84$ litters to 2.s.f\

$6,040\approx 6,000$ meters to 2.s.f

bekas [8.4K]3 years ago

7 0

Answer:

<h2><em>B,C,D IS CORRECT!!</em></h2>

Step-by-step explanation:

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1 year ago

one-third of the people from country A claim that they are from country B, and the rest admit they are from country A. One-fourt

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Step-by-step explanation:

Let A represents the total population of country A and B represents the total population of country B.

According to the question,

$\text{The population of country A that admit they are from B} = \frac{1}{3}\text{ of }A$

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⇒ $\text{ The total population that claims that they are from A }= \frac{2}{3} A +\frac{1}{4} B$

But, Again according to the question,

The total population that claims that they are from A = one half of the total population of A and B.

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⇒ $\frac{2}{3} A + \frac{1}{4} B= \frac{1}{2}A+\frac{1}{2}B$

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3 years ago

6 more than x is equal to 33. What is the value of x?

Leni [432]

Answer:

27

Step-by-step explanation:

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7 0

3 years ago

Read 2 more answers

Ariel made cupcakes to sell. 2/3 of them were chocolate chip,25% of the reminder was strawberry and the rest were 90 vanilla cup

Anton [14]

Answer:

Let x be the total number of cupcakes.

Chocolate chips =

$\frac{2}{3} x$

Strawberry =

$\frac{1}{4} \times \frac{1}{3} \\ = \frac{1}{12} x$

Vanilla =

$x - \frac{2}{3} x - \frac{1}{12}x \\ = \frac{1}{3} x - \frac{1}{12} x \\ = \frac{1}{4} x$

given

$\frac{1}{4} x = 90$

$x = 90 \div \frac{1}{4} \\ = 90 \times 4 \\ = 360$

a)Number of Chocolate chip Cupcakes =

$\frac{2}{3} \times 360 \\ = 240$

b)Number of Strawberry cupcakes =

$\frac{1}{12} \times 360 \\ = 30$

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2 years ago