4 years ago

Round 472.529996081 to the nearest ten

1 answer:

5 0

The answer would be 472.5 if rounding big numbers like that if I can’t remember I use this website calculator soup recommend it

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2a²+5b² a=-6 b=2 Please help!!

stich3 [128]

2a^2+5b^2

2(-6)^2+5(2)^2

2(36)+5(4)

72+20

Hope this helps ;)

6 0

3 years ago

Use the graph to estimate the value of y when x = 2.5

WINSTONCH [101]

Answer:

7 ish

Step-by-step explanation:

if you look at where 2.5 would be on the X axis (in-between 2 and 3) and you look at the corresponding Y point, its somewhere near where 7 would be.

8 0

3 years ago

Suppose the force acting on a column that helps to support a building is a normally distributed random variable X with mean valu

Sauron [17]

Answer:

(1) 0.4207

(2) 0.7799

Step-by-step explanation:

Given,

Mean value,

$\mu = 15.0$

Standard deviation,

$\sigma = 1.25$

(1) P(X ≥ 17.5) = 1 - P( X ≤ 17.5)

$= 1- P(\frac{x-\mu}{\sigma} \leq \frac{17.5-\mu}{\sigma})$

$=1-P(z\leq \frac{17.5 - 15}{1.25})$

$=1-P(z\leq \frac{2.5}{1.25})$

$=1-P(z\leq 2)$

$=1- 0.5793$ ( By using z-score table )

= 0.4207

(2) P(14 ≤ X ≤ 18) = P(X ≤ 18) - P(X ≤ 14)

$=P(z\leq \frac{18 - 15}{1.25}) - P(z\leq \frac{14 - 15}{1.25})$

$=P(z\leq \frac{3}{1.25}) - P(z\leq -\frac{1}{1.25})$

$=P(z\leq 2.4) - P(z\leq -0.8)$

= 0.9918 - 0.2119

= 0.7799

8 0

3 years ago

Three friends bought 4, 6, and 8 books. The table shows the cost of the books. What is the constant of proportionality? 2 7.5 15

Svetach [21]

Your anwser would be 8

6 0

4 years ago

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What is 6a^2b^2/2ab^2 in lowest terms

Alexxx [7]

(-2ab^3)(-3a^2b^5)Simplifying (-2ab3)(-3a2b5) Remove parenthesis around (-2ab3) -2ab3(-3a2b5) Remove parenthesis around (-3a2b5) -2ab3 * -3a2b5 Reorder the terms for easier multiplication: -2 * -3ab3 * a2b5 Multiply -2 * -3 6ab3 * a2b5 Multiply ab3 * a2b5 6a3b8

4 0

4 years ago

Read 2 more answers