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miv72 [106K]
3 years ago
13

Nobody has helped me all day and I really need this answer please. Will mark brainliest. Find the length of AB.

Mathematics
1 answer:
kozerog [31]3 years ago
7 0

Answer:

<u>5.59</u>

Step-by-step explanation:

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Andrew bought a computer for $650, a printer for $135.89, and two printer cartridges for
Naddika [18.5K]

Answer:

814.68

Step-by-step explanation:

650+135.89+28.79=814.68

8 0
4 years ago
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If I were to put cupcakes in the oven at 2:05 and took them out at 2:45 what time would it be
Vsevolod [243]

Answer:

2:45

Step-by-step explanation:

5 0
3 years ago
The function f(x)=2/3x-4 was replaced with f(x+k)=2/3x-6 what is the value of k
HACTEHA [7]

Answer:

The given function f(x)=\frac{2x}{3}-4 was replaced with f(x+k)=\frac{2x}{3}-6 then the value of k is -3

that is k=-3.

Step-by-step explanation:

The given function is f(x)=\frac{2x}{3}-4\hfill (1)

and when x=x+k then f(x+k)=\frac{2x}{3}-6\hfill (2)

Now to find the value of k:

Put x=x+k in the function f(x)

f(x)=\frac{2x}{3}-4

f(x+k)=\frac{2(x+k)}{3}-4

f(x+k)=\frac{2x+2k}{3}-4\hfill (3)

Now comparing equations (2) and (3) we get

f(x+k)=\frac{2x+2k}{3}-4=\frac{2x}{3}-6

\frac{2x+2k}{3}-4=\frac{2x}{3}-6

\frac{2x+2k}{3}-4-\frac{2x}{3}+6=0

\frac{2x}{3}+\frac{2k}{3}-4-\frac{2x}{3}+6=0

\frac{2k}{3}+2=0

\frac{2k}{3}=-2

k=\frac{-2\times 3}{2}

k=-3

Therefore k=-3

Therefore the given function f(x)=\frac{2x}{3}-4 was replaced with  f(x+k)=\frac{2x}{3}-6 then the value of k is -3

that is k=-3.

7 0
3 years ago
What is the surface area of a box if it is scaled up by a factor of 10
True [87]
Answer: 100 x the original surface area of the box.
Discussion: Note that a box implies three dimensions. However, when dealing with surface area, we are dealing only with two dimensions. Therefore, scaling up a box where we have sides a, b, and c, by a factor of 10, we increase each side by a factor of 10. The scaled up box now has each of those dimensions as 10a, 10b, and 10c. Whereas the VOLUME is increased from (a x b x c) to (10a x 10b x 10c), the SURFACE AREA is increased from 2(a x b) + 2(a x c) + 2(b x c) to 2(10a x 10b) + 2(10a x 10c) + 2(10b x 10c). The SURFACE AREA is therefore kept in only square units, while VOLUME is in cubed units.
4 0
4 years ago
The spinner below is spun 60 times.<br> Results are shown in the table<br> below.
mezya [45]

Answer:

Step-by-step explanation:

Theortical probability

A = 1/4

B = 1/3

C = 5/12

Experamental probability

A = 18/60 = 3/10

B = 20/60 = 1/3

C =  22/60 = 11/30

8 0
2 years ago
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