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dem82 [27]
3 years ago
5

A picture is photocopied by using a scale factor of 2. Each side of the photocopy of the picture is

Mathematics
1 answer:
Anarel [89]3 years ago
4 0

Answer:

enlarged by a factor of 2

Step-by-step explanation:

you're welcome

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A right circular cylinder is changing shape. The radius is decreasing at the rate of 2 inches/sec while it's height is increasin
Savatey [412]

Answer:

<h3> 552.640in³/s</h3>

Step-by-step explanation:

Volume of a cylinder is expressed as;

V = \pi r^2 h

\frac{dV}{dt} = \frac{dV}{dr} \frac{dr}{dt} +\frac{dV}{dh} \frac{dh}{dt}

dV/dr = 2πrh

dV/dr = 2π(4)(6)

dV/dr = 48(3.14)

dV/dr = 150.72in³/m

dV/dh = πr²

dV/dh = 3.14(4)²

dV/dh = 50.24

Given

dh/dt = 5in/s

dr/dt = 2in/s

Substitute into the dV/dt

dV/dt = 150.72(2)+50.24(5)

dV/dt = 301.44 + 251.2

dV/dt= 552.640in³/s

The volume is changing at the rate of  552.640in³/s

7 0
2 years ago
Help me with this ASAP please!
Natasha_Volkova [10]

Answer:

10 degrees

Step-by-step explanation:

The total area of the triangle will equal 180 degrees.

Firstly add 108 and 48 to get a total of 156.

Now add the 14 from (x+14). You will get 170.

Since the total would be 180 degrees, you subtract 170 from 180.

180-170=10!!!

4 0
3 years ago
A coordinate plane with a line passing through (negative 4, negative 4), (0, 0) and (4, 4).
Kisachek [45]

Answer:

-x + y = 0 or x - y = 0

Step-by-step explanation:

The line passes through points (0, 0) and (4,4), then its slope is:

m = (4 - 0)/(4 - 0) = 1

Given that the line passes through (0, 0), its y-intercept is

b = 0

Using slope and y-intercept form:

y = mx + b

y = x

The standard form of a line is:

Ax + By = C

So, we have to put all variables on the left side, as follows:

-x + y = 0

Multiplying by (-1) at both sides:

x - y = 0

5 0
2 years ago
Read 2 more answers
What is the measure of angle AOB?
Anettt [7]

Answer:

let angle AOB and angle COD be x

the it would be

x+x+110=180

2x+110=180

2x=180-110

2x=70

x=70/2

x=35 degree.

hope it will help you.

4 0
3 years ago
What is the value of b^2 - 4ac for the following equation?
WINSTONCH [101]
(7)^2-4(5)(-6)=

49+120=169 is the answer
5 0
3 years ago
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