2 years ago

HELP PLS “geometry”

Mathematics

1 answer:

Bumek [7]2 years ago

4 0

Answer:

Nameric Response

Step-by-step explanation:

a rectangular tabletop has diagonal

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Julia rounded to the nearest ten to estimate the difference between two numbers. The estimated difference was 10. What are four

serious [3.7K]

To round off to 10, the difference should range from 5 to 14. If the difference between two numbers is from 5 to 14, they all are rounded to 10.

Example:

$18-9=9$ (near to 10)

$26-15=11$

$46-39=7$

$50-42=8$

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4 years ago

What is the volume of a sphere with a diameter of 9 in.?

a_sh-v [17]

Answer: 121.5 in³

Explanation:

$\textnormal{Volume }= \cfrac{4}{3} \pi (4.5)^3 = 121.5 \pi \ in^3$

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3 years ago

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A student had 500 milliliters of water in a water bottle. She drank 25% of the water before soccer practice. After practice, she

AlladinOne [14]

Step-by-step explanation:

25\100*500=125

1/3*125=41.66

41.66 millilites is left in the bottle

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4 years ago

PLEASE HELP! 40 POINTS

Misha Larkins [42]

Answer:

Step-by-step explanation:

the area (A) of a triangle is calculated as

A = $\frac{1}{2}$ bh ( b is the base and h the perpendicular height )

here b = z and h = w , then

A = $\frac{1}{2}$ zw

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2 years ago

Maria works in a factory that produces new cars. She is having trouble with one of the machines. In order to work properly, the

Dovator [93]

Answer:

Maria did her job properly. Both gears are perpendicular.

Step-by-step explanation:

Recall that given vectors a and b, they are perpendicular if and only if $a\cdot b$ =0. If $a=(a_1,a_2),b=(b_1,b_2)$ . Then $a\cdot b = a_1b1_+a_2b_2$ .

IN our case a=(5,-1,2) and b) (1,-3,-4). So,

$a\cdot b = 5\cdot 1 + (-1)\cdot(-3) + 2\cdot(-4) = 5+3-8 =0$

So both gears are perpendicular.

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4 years ago