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Angelina_Jolie [31]
3 years ago
11

Help plz:))) I’ll mark u brainliest ASAP!!!

Mathematics
2 answers:
Oksana_A [137]3 years ago
4 0

Answer:

x=17 i think

Step-by-step explanation:

Vilka [71]3 years ago
4 0

Answer:

x = 17

Step-by-step explanation:

18 = x + 1

18 - 1 = x

17 = x

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seraphim [82]
A parallel line has the same gradient

First you will need to rearrange the equation 10x+2y=-2

Then once you do that please comment

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7 0
3 years ago
Read 2 more answers
A scuba diver dives 750 feet underwater, swims up 375 feet, and then swims down 225 feet. After all of that where is the diver a
ryzh [129]

Answer:

600ft

Step-by-step explanation:

750 - 375 + 225 = 600

6 0
3 years ago
54 is 60% of what number?
Genrish500 [490]
Let, the number = x

Then, x * 60% = 54

x * 0.60 = 54

x = 54 / 0.60

x = 90

In short, Your Answer would be: 90

Hope this helps!
6 0
4 years ago
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The radius of a right circular cone is increasing at a rate of 1.4 in/s while its height is decreasing at a rate of 2.1 in/s. At
kow [346]

Given:

\dfrac{dr}{dt}=1.4\text{ in/s}

\dfrac{dh}{dt}=-2.1\text{ in/s}

To find:

The rate of change in volume at r=120\text{ in. and }175\text{ in.}

Solution:

We know that, volume of a cone is

V=\dfrac{1}{3}\pi r^2h

Differentiate with respect to t.

\dfrac{dV}{dt}=\dfrac{1}{3}\pi\times \left[(r^2\dfrac{dh}{dt}) + h(2r\dfrac{dr}{dt})\right]

Substitute the given values.

\dfrac{dV}{dt}=\dfrac{1}{3}\times \dfrac{22}{7}\times \left[(120)^2(-2.1) +175(2)(120)(1.4)\right]

\dfrac{dV}{dt}=\dfrac{22}{21}\times \left[-30240+58800\right]

\dfrac{dV}{dt}=\dfrac{22}{21}\times 28560

\dfrac{dV}{dt}=29920

Therefore, the volume of decreased by 29920 cubic inches per second.

6 0
3 years ago
Is it possible to subtract a loss from a positive number and result in a negative number?
Anon25 [30]

Answer:

yes that's possible for example -3-5=-8

5 0
3 years ago
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