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creativ13 [48]
2 years ago
5

Find the area. Round to the nearest hundredth if necessary

Mathematics
1 answer:
snow_lady [41]2 years ago
4 0

Answer:

138.16

Step-by-step explanation:

a=3.14 x 44

the formula is a=pie x r squared

they have given you diameter so, it is simply pie x diameter

or 3.14 x 44

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a physical trainer measures her heart rate and counts that it beats 30 times in 15 seconds. what is the unit rate for her heart
nikitadnepr [17]
The unit rate is 2 beats per second.


3 0
3 years ago
What is the solution to the proportion? n/18 = 5/9 (i think its 10)
umka2103 [35]
You've got it, the answer is 10!

n/18=5/9
9n=5(18)
9n=90
n=10
5 0
3 years ago
Need help!! “Use the Pythagorean theorem to find the missing side of the right triangle.”
sasho [114]

Answer:

x=6

Step-by-step explanation:

a²+b²=c²

x²+8²=10²

x²+64=100

x²=36

x=6

if u have any questions abt how to solve lmk

3 0
3 years ago
Read 2 more answers
The Blue Diamond Company advertises that their nut mix contains (by weight) 40% cashews, 15% Brazil nuts, 20% almonds and only 2
jek_recluse [69]

Answer:

At the 0.05 level of significance,  the claim made by Blue Diamond is true

Step-by-step explanation:

Given that the Blue Diamond Company advertises that their nut mix contains (by weight) 40% cashews, 15% Brazil nuts, 20% almonds and only 25% peanuts.

H_0: The mix are as per percents given\\H_a:Atleast two differ from the above percent.

(Two tailed chi square test at 5% significance level)

Chi square is calculated as (Obs_exp)^2/Expected

Cashews Brazil nuts Almonds Peanuts Total

Observed 5 6 6 3 20

Expected  40% 15% 20% 25% 1

Expected  8 3 4 5 20

     

Chi square 1.125 3 1 0.8 5.925

df = 3

p value = 0.1153

Since p value >0.0 we accept null hypothesis.

4 0
3 years ago
Does anyone know how to factor y^2+49?
Delvig [45]

Answer:

(y + 7i)(y - 7i)

Step-by-step explanation:

It cannot be factored using real numbers, but consider

7i × - 7i

= -49i² and i² = - 1

= 49

The factoring as a difference of squares to obtain

y² + 49 = (y + 7i)(y - 7i)

5 0
3 years ago
Read 2 more answers
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