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Veseljchak [2.6K]

2 years ago

9

What is 4,952 rounded to the nearest ten

2 answers:

natita [175]2 years ago

7 0

Answer:

4950

Step-by-step explanation:

The last digit is two. If the digit (in this case, the last one) is from 1-4, it goes down, if the digit is 5-9 it goes up. An easy way to remember this is singing this song:

<em>4 or less, let it rest. Five or more raise the score</em>

Lemur [1.5K]2 years ago

6 0

Answer:

4950

Step-by-step explanation:

you round down from the 50

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What is the formula for the perimeter of a semicircle

Rasek [7]

Answer:

The perimeter of a semicircle is the sum of the half of the circumference of the circle and diameter. As the perimeter of a circle is 2πr or πd. So, the perimeter of a semicircle is 1/2 (πd) + d or πr + 2r, where r is the radius.

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2 years ago

How do i simplify 4x - 6(7+4x)

sdas [7]

Answer:

-42-20x

Step-by-step explanation:

Use PEMDAS, which is:

P: Parenthesis

E: Exponents

M: Multiplication

D: Division

A: Addition

S: Subtraction

So first you would open parenthesis:

4x-42-24x

Then combine like terms:

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Your answer would be -42-20x.

<em>~Stay golden~ :)</em>

6 0

3 years ago

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Which pair of numbers are relatively prime

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77 and 791 are both relatively prime numbers

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3 years ago

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Which graph represents the function f(x)= 0.2^x + 3

Dennis_Churaev [7]

The third graph or bottom left graph represents $f(x) = 0.2^{x} + 3.$

Step-by-step explanation:

Step 1:

To determine which of the given graphs represents the equation $f(x) = 0.2^{x} + 3$ , we substitute some values in the place of x.

When $x=0,$ $f(x) = 0.2^{x} + 3, f(0) = 0.2^{0} + 3= 4.$

Anything with an exponent of 0 will equal 1.

So the graphs on the right side cannot be the answers.

Step 2:

Now we substitute another value to determine which graph represents $f(x) = 0.2^{x} + 3.$

When $x=1,$ $f(x) = 0.2^{x} + 3, f(1) = 0.2^{1} + 3= 4.2.$

The value of f(x) when $x=1$ is lesser than the value of f(x) when $x =0.$

So the third graph or bottom left graph represents $f(x) = 0.2^{x} + 3.$

5 0

3 years ago

-5+2(10b-2)=31 need help thanks!

Contact [7]

Answer:

$\Large \boxed{b=2}$

Step-by-step explanation:

-5+2(10b-2)=31

Expand brackets.

-5+20b-4=31

-9+20b=31

Add 9 on both sides.

20b=40

Divide both sides by 20

b=2

8 0

3 years ago

Read 2 more answers