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rusak2 [61]
3 years ago
7

HELP ME PLZ ON THIS QUIz

Mathematics
2 answers:
KiRa [710]3 years ago
7 0

Answer:

2-5x.....

................

butalik [34]3 years ago
4 0
It’s the second one don’t listen to the guy above me. Answer= 2x-2+3x. Pls mark brainliest
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Y’all I need a lot of help please help me and please show work
Nadya [2.5K]

Answer:

90

Step-by-step explanation:

no of total groups = 2+6+4=12

so in total there are 12 groups

each have equal number of members

so the answer is the number that is not a factor of 12

i hope this help you

this is quite high order thinking question

so don't know about the steps

if you understood then you may write the steps yourself

4 0
3 years ago
The radius of a right circular cone is increasing at a rate of 1.9 in/s while its height is decreasing at a rate of 2.2 in/s. At
musickatia [10]

Answer:

Volume of the cone is increasing at the rate 9916\pi \frac{in^3}{s}.

Step-by-step explanation:

Given: The radius of a right circular cone is increasing at a rate of 1.9 in/s while its height is decreasing at a rate of 2.2 in/s.

To find: The rate at which volume of the cone changing when the radius is 134 in. and the height is 136 in.

Solution:

We have,

\frac{dr}{dt} =1.9 \:\text{in/s}, \frac{dh}{dt}=-2.2\:\text{in/s}, r=134 \:\text{in}, h=136\:\text{in}

Now, let V be the volume of the cone.

So, V=\frac{1}{3}\pi r^{2}h

Differentiate with respect to t.

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

Now, on substituting the values, we get

\frac{dv}{dt} =\frac{1}{3}\pi\left [ \left ( 134 \right )^2\left ( -2.2 \right )+\left (  136\right )\left ( 2 \right )\left ( 134 \right )\left ( 1.9 \right ) \right ]

\frac{dv}{dt} =\frac{1}{3}\pi\left [  -39503.2+69251.2 \right ]  

\frac{dv}{dt} =\frac{1}{3}\pi\left [ 29748 \right ]

\frac{dv}{dt} =9916\pi \frac{in^3}{s}

Hence, the volume of the cone is increasing at the rate 9916\pi \frac{in^3}{s}.

6 0
3 years ago
Ronald spent $128.15 on school clothes. He counted his money and discovered that he had $37.85 left. How much money did he origi
salantis [7]

Answer:

166 = total amount of money

Step-by-step explanation:

What we spent plus what we have left equal the total amount of money

128.15 + 37.85 = total amount of money

166 = total amount of money

5 0
3 years ago
Read 2 more answers
8.902 to the nearest hundredth
k0ka [10]
8.902
     ^this place it the hundreths so if you know how to round it is 8.9 or 8.900
7 0
4 years ago
What is the range of the function graphed below?
lesya692 [45]

Answer:

A: 1 < y < 4

Step-by-step explanation:

Hopefully this helps!

6 0
3 years ago
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