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Kamila [148]
4 years ago
10

HEELPLPLPLPLPLPLPLPLPLPRDVJNLDFBLJFC,LVDZFBV,JDZFHBXV

Mathematics
2 answers:
Nadusha1986 [10]4 years ago
5 0
5/20 or 25% is the answer. Hope it helps!
olga_2 [115]4 years ago
3 0
You first add up how many erasers there are in the bag so there are 20 and then you check how many purple erasers there are and so there are 5 and so the answer is 5/20 or 1/4 which is 0.25 as a decimal and if you do probability the answer has to be in between o and 1 and so 0.25 is in between 0 and 1 so it should be correct 
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Jack took out a 6-year loan for $25,000 to purchase a boat at a 4.5% interest rate. If the interest is compounded monthly, what
Kruka [31]

Answer: $32,732.58

Step-by-step explanation:

To calculate the total loan payment over the course of the loan period, use the future value formula:

= Loan amount * (1 + rate) ^ number of years

As this loan is compounded monthly, you need to convert certain terms to monthly figures:

Number of periods = 6 * 12 months = 72 months

Interest = 4.5 / 12 = 0.375%

Total payment:

= 25,000 * ( 1 + 0.375%)⁷²

= $32,732.58

6 0
3 years ago
[7 points] A sample of 78 anchor bolts was randomly selected and the shear strength (in kips) of each was measured, resulting in
vovangra [49]

Answer:

Step-by-step explanation:

We want to determine a 98% confidence interval to estimate the true mean shear strength of anchor bolts.

Number of sample, n = 78

Mean, u = 4.25

Standard deviation, s = 1.3

For a confidence level of 98%, the corresponding z value is 2.33.

We will apply the formula

Confidence interval

= mean ± z × standard deviation/√n

It becomes

4.25 ± 2.33 × 1.3/√78

= 4.25 ± 2.33 × 0.147

= 4.25 ± 0.34

The lower end of the confidence interval is 4.25 - 0.34 = 3.91

The upper end of the confidence interval is 4.25 + 0.34 = 4.59

b) the confidence interval would still be valid because the number of samples is large(> 30)

6 0
4 years ago
Who wants to plays cold war​
raketka [301]
Sure what’s your user I’ll add you when I hop on
7 0
3 years ago
Read 2 more answers
If the diameter of the circle is 23 inches what is the area of the circle using pirate to the nearest tenth
Wewaii [24]

Answer:

415.48 or 132.25 pi cm

Step-by-step explanation:

23 divided by 2 is 11.5 so that is the radius. Then you multiply the radius by pi. Or you can do 11.5 x 11.5 if you are trying to find the solution without pi.

7 0
4 years ago
The class of math is mapped on a coordinate grid with the origin being at the center point of the hall. Mary’s seat is located a
nignag [31]
To find the distance b/t 2 points you need to use the distance formula. that is

distance = square root of (x2-x1)^2 + (y2-y1)^2


to fill it in, it is

(it doesnt matter which point you start with, as long as its consistent)

x1 = 9
x2 = 5
y1 = -8
y2 = -10

square root of (5-9)^2 + (-10-8)^2

lets do algebra!

square root of (-4)^2 + (-18)^2

square root of 16 + 324

square root of 340


Distance = 18.4391 units.

I hope this helps!
7 0
3 years ago
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