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Harrizon [31]
3 years ago
8

Both of these questions I️ got wrong. Please do not pay attention to my work because it is all wrong!

Mathematics
1 answer:
kaheart [24]3 years ago
8 0
11. The area of the circle is pi×r^2 so pi×6^2= 113.1cm^2 rounded to 1 d.p.
The area of the rectangle is 4×4=16cm^2
So to find out the area of the shaded region, do 113.1-16= 97.1cm^2

12. The area of a rectangle is l×w so 40×18=720cm^2
The area of the triangle is 1/2(l×w) so 1/2(9×12)=1/2(108)= 54cm^2
So to find out the area of the shaded region, do 720-54= 666cm^2
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Mr Lowry paid $32 for 5 boxes of crayons. How many dollars per box?
butalik [34]

Answer:

6 dollars and 40 cents

Step-by-step explanation:

To get the answer, you would do 32/5 which equals 6.4, which is the same as saying 6 dollars and 40 cents.

5 0
2 years ago
Cans someone pls give me the answer to this?
romanna [79]

Answer:the value drops 100$ every 3 years

Step-by-step explanation:

moves down 100 every three years

8 0
3 years ago
Graph the function
Oksana_A [137]

Answer:

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6 0
3 years ago
Denise is a professional swimmer who trains, in part, by running. she would like to estimate the average number of miles she run
SSSSS [86.1K]
Given:
n = 20, sample size
xbar = 17.5, sample mean
s = 3.8, sample standard deiation
99% confidence interval

The degrees of freedom is 
df = n-1 = 19

We do not know the population standard deviation, so we should determine t* that corresponds to df = 19.
From a one-tailed distribution, 99% CI means using a p-value of 0.005.
Obtain
t* = 2.8609.

The 99% confidence interval is
xbar +/- t*(s/√n)

t*(s/√n) = 2.8609*(3.8/√20) = 2.4309
The 99% confidence interval is
(17.5 - 2.4309, 17.5 + 2.4309) = (15.069, 19.931)

Answer: The 99% confidence interval is (15.07, 19.93)
4 0
4 years ago
3 divided by 4 in fraction form
Kitty [74]
Answer: 3/4 is the answer
3 0
3 years ago
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