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3 years ago

Round 157 to the nearest ten

Mathematics

2 answers:

MA_775_DIABLO [31]3 years ago

7 0

160
because 157 is closer to 160 than 150

Arturiano [62]3 years ago

4 0

If the number you are rounding is followed by 5, 6, 7, 8, or 9, round the number up (+1).

If the number you are rounding is followed by 0, 1, 2, 3, or 4, round the number down (no change).

157 ≈ 160

Read more about domain at:

brainly.com/question/10197594

#SPJ1

6 0

2 years ago

Ms. Sherwood surveyed 250 people, how many people chose black as their favorite car color?

aleksandrvk [35]

Answer:

should be 70!!!!!!!!!!!!!!

6 0

3 years ago

Read 2 more answers

For what values of x is the graph of y equals negative 3 divided by the quantity 4 plus x concave downward?

Elena-2011 [213]

We are given our function as

$y=\frac{-3}{x+4}$

For finding concavity , firstly we will find second derivative

$y'=\frac{d}{dx}\left(\frac{-3}{x+4}\right)$

$=-3\frac{d}{dx}\left(\frac{1}{x+4}\right)$

$=-3\left(-\frac{1}{\left(x+4\right)^2}\right)\cdot \:1$

$y'=\frac{3}{\left(x+4\right)^2}$

now, we can find derivative again

$y''=\frac{d}{dx}\left(\frac{3}{\left(x+4\right)^2}\right)$

$=3\frac{d}{dx}\left(\left(x+4\right)^{-2}\right)$

$y''=3\left(-\frac{2}{\left(x+4\right)^3}\right)\cdot \:1$

$y''=-\frac{6}{\left(x+4\right)^3}$

now, we can know second derivative is undefined when denominator =0

so, we set denominator =0

and then we can solve for x

$x+4=0$

$x=-4$

now, we can draw a number line and locate x=-4

and then we can find sign of second derivative on each intervals

so,

Concave downward interval:

$(-4,\infty)$

6 0

3 years ago

WHAT IS .115 IN EXPANDED FORM

ivolga24 [154]

0.115 = 0.1 + 0.01 + 0.005

hope it helps

7 0

3 years ago

Compare multiplying a number by 3 and by 1 third. *

Snowcat [4.5K]

Answer:

Multyplying by 1 third is the same as dividing by 3, so it's the opposite as multiplying by 3.

6 0

3 years ago