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3 years ago

Which expression is the factored form of -4.5n+3?

Mathematics

1 answer:

TEA [102]3 years ago

5 0

The right ans is D.I am 100%sure.

if my ans was gelpful u can follow me.

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A company makes glass paperweights in the shape of a square pyramid. The base of

Serhud [2]

Step-by-step explanation:

D) 12 in3

How to get the volume

length x width x height

in this case it be

base x height

3 0

2 years ago

Katie jogged a total distance of 8 and 1 over 2 miles during the months of January and February. If Katie only jogged 1 over 4 m

sattari [20]

Answer:

the correct answer is....

C) 8 and 1 over 2 + 1 over 4

Hope this helps!!!! :)

**(Bojana)**

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

I need help with this yes or no picking?

Ivenika [448]

Use photomath. Do not click on the link the other person which is actually a bot put.

6 0

2 years ago

What is the answer to the length of a rectangle is 5 feet more then the width and the perimeter is 22 what is is width of the re

Margaret [11]

Question:
l = 5 + w
perimeter = 22
width?

Solution:
Perimeter = 22
2(l + w) = 22
2(5+w+w) = 22
2 (5 + 2w) = 22
5 + 2w = 11
2w = 6
w = 3

The width is 3

3 0

2 years ago

(3) Two people are at an elevator. At the same time one person starts to walk away from the elevator at a rate of 2 ft/sec and t

Gekata [30.6K]

Answer:

The rate at which the distance between the two people is changing 15 seconds later is 7.28 ft/sec.

Step-by-step explanation:

Here, we note the following

Let the person walking way fom the elevator be X

Let the other person going up in the elevator be Y

Therefore after 15 seconds, their positions will be;

For X, 2 ft/sec × 15 s = 30 ft away from the elevator

For Y, 7 ft/sec × 15 s = 105 ft up in the elevator

At that instant, the distance between them is given as

d² = x² + y²

= 30² +105² = 11925 ft²

d = √11925 ft² = 109.202 ft

The rate of change of the distance between the two peopl, X and Y is given as

$\frac{dd^2}{dt} = \frac{dx^2}{dt} + \frac{dy^2}{dt}$

Therefore, $2d\frac{dd}{dt} = 2x\frac{dx}{dt} + 2y\frac{dy}{dt}$ or $d\frac{dd}{dt} = x\frac{dx}{dt} + y\frac{dy}{dt}$

Since $\frac{dx}{dt}$ is given as 2 ft/sec and $\frac{dy}{dt}$ = 7 ft/sec

Then $d\frac{dd}{dt} = 30 \times 2 + 105 \times 7 = 795\\$

$\frac{dd}{dt} = \frac{795}{109.202 } =7.28 ft/sec$

8 0

2 years ago

Read 2 more answers