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Elena L [17]
3 years ago
7

Need help on 3 and 4 thx!

Mathematics
1 answer:
Pani-rosa [81]3 years ago
6 0
Question 3 would be 18 times 12=216 times 5 as a pyramid has 5 faces=1080 Answer is D
Question 4 is A because 8 times 3 is 24 and 8 times 4 is 32.
I hope this was helpful
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Annie's rectangular garden is 5 feet long and 3 feet wide. What is the area of her garden?
ANEK [815]
Answer: 5 x 3 = 15

Explanation: area is length multiplied by width.
6 0
2 years ago
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Solve the equation<br> z³=27
Sidana [21]

Answer:

z=27^(1/3)=3

check:3x3x3=27

Step-by-step explanation:

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2 years ago
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HELP, I need to determine the slope and y-intercept for each group. I need to write an equation for the graph in slope-intercept
Leviafan [203]

Answer

Slope: 3/2

y-intercept: -1

equation: y=3/2x-1

Step-by-step explanation:

Slope = rise/run

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3 years ago
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Cecilia has $780 in an account earning 5.2% simple interest. How much more interest would her account earn in 6 years with annua
Makovka662 [10]

Answer:

$1057.3

Step-by-step explanation:

First we'll find the Interest no. 1, which is simple interest, assuming the time 1 year:

S.I= PRT/100

S.I= 780*5.2*1/100

S.I=$40.56

Now we'll find interest no.2, which is compound interest, time is 6 years, Principal amount (780) will remain the same as well as the rate thus (putting in the formula of compound interest- annual- A=P(1+\frac{R}{100} )^t):

A= 780(1+\frac{5.2}{100})^6

A= $1057.3

7 0
3 years ago
On a baseball team, the ages of each of the players are as follows: 21; 21; 22; 23; 24; 24; 25; 25; 28; 29; 29; 31; 32; 33; 33;
Paul [167]

Answer:

Mean = 30.68

Standard deviation = 6.095

Two standard deviations above the mean = 42.87

Step-by-step explanation:

Given the following data :

21; 21; 22; 23; 24; 24; 25; 25; 28; 29; 29; 31; 32; 33; 33; 34; 35; 36; 36; 36; 36; 38; 38; 38; 40

Mean = Σ(x) / n

n = 25

Σ (X) = 767

Mean (m) = 767 / 25

Mean (m) = 30.68

Standard deviation : sqrt[Σ(x - m) / n]

Using a calculator :

Standard deviation = 6.095 ( 2 decimal places)

2 standard deviations above the mean :

Mean + 2(standard deviation)

Mean + 2(6.095)

30.68 + 12.19

30.68 + 12.19

= 42.87

6 0
3 years ago
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