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Levart [38]
2 years ago
7

A copy machine is set to enlarge an image 160%. If the original image is 3 inches tall, how

Mathematics
1 answer:
Mamont248 [21]2 years ago
4 0

Answer:

The enlarged image will be about 4.8 inches

Step-by-step explanation:

Here, we want to know how tall the image will be

Mathematically;

That will simply be 160% of 3 inches

We have;

160/100 * 3 = 480/100 = 4.8 inches

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Suppose you earned $15 from your job last week. You want to save $3 and buy some books that cost $4 each. To find how many books
vova2212 [387]

Answer:

You can buy 3 books 4 x 3 = 12

Step-by-step explanation:

8 0
2 years ago
1. The US Mint has a specification that pennies have a mean weight of 2.5g. From a sample of 37 pennies, the mean weight is foun
Evgesh-ka [11]

Answer:

the pennies does not conform to the US mints specification

Step-by-step explanation:

z = (variate -mean)/ standard deviation

z= 2.5 - 2.4991 / 0.01648 = 0.0546

we are going to check the value of z in the normal distribution table, which is the table bounded by z.

checking for z= 0.0 under 55 gives 0.0219 (value gotten from the table of normal distribution)

we subtract the value of z from 0.5 (1- (0.5+0.0219)) = 0.4781 > 0.05claim

since 0.4781 > 0.05claim, therefore, the pennies does not conform to the US mints specification

the claim state a 5% significance level whereas the calculated significance level is 47.81%. therefore, the claim should be rejected

7 0
3 years ago
Solve for x in the equation x²-12x+59=0
lyudmila [28]

{x}^{2}  - 12x + 59 = 0 \\  {x}^{2}  - 12x + 36 + 23 = 0 \\  {x}^{2}  - 12x + 36 =  - 23 \\  {(x - 6)}^{2}  =  - 23 \\ x - 6 =  +  -  \sqrt{ - 23}  =  +  - i \sqrt{23}  \\ x = 6 +  - i \sqrt{23}

mean

x = 6 + i \sqrt{23}

or

x = 6 - i \sqrt{23}

7 0
3 years ago
Read 2 more answers
Can anyone please help me with this geometry question?
Ainat [17]

Answer:

Step-by-step explanation:

let base be x and height be 3x

we know area of parallelogram is

base*height

ie x*3x=675

3x^2=675

x^2=675/3

x^2=225

x= square root of 225

x=15

therefore base =15

height = 45

8 0
3 years ago
Is (1, 4) a solution to the equation y = 7x?
wolverine [178]

Answer:

No.

Step-by-step explanation:

No because if we substitute the given values into the equation they do not fit:

y = 7x

x = 1 and y = 4:

Left side = 4

right side = 7*1 = 7.

8 0
3 years ago
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