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3 years ago

Anybody know this ???

Mathematics

1 answer:

serg [7]3 years ago

6 0

Answer:

suurreeeeee let me finish and iwill give you the answer

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Can someone plz help me I bed u

ycow [4]

Answer:

Step-by-step explanation:

area of a triangle is bxhx1/2

8x8 is 64

and then divide by 2

64/2=32

8 0

3 years ago

Marvin spent 2.8 hours which is 35% of his time at the recreational center playing ping pong. How long was Marvin at the recreat

timofeeve [1]

Answer:

35×2.8

100

98

100= 0.98

6 0

3 years ago

Find two numbers if their sum is 6.1 and their difference is 1.6

Nimfa-mama [501]

A+b=6.1 ---(1)
a-b=1.6 ---(2)

(1)+(2); 2a=7.7
then a=3.85
so b=a-1.6 = 3.85-1.6 = 2.25

so that the two numbers are 2.25 and 3.85

5 0

3 years ago

You are an assistant director of the alumni association at a local university. You attend a presentation given by the university

NNADVOKAT [17]

Answer:

(0.102, -0.062)

Step-by-step explanation:

sample size in 2018 = n1 = 216

sample size in 2017 = n2 = 200

number of people who went for another degree in 2018 = x1 = 54

number of people who went for another degree in 2017 = x2 = 46

p1 = x1/n1 = 0.25

p2 = x2/n2 = 0.23

At 95% confidence level, z critical = 1.96

now we have to solve for the confidence interval =

$0.25 -0.23 ± 1.96*\sqrt{((1 - 0.25) * 0.25)/216 + ((1 - 0.23) *0.23/200}$

= 0.02 ± 1.96 * 0.042

= 0.02 + 0.082 = 0.102

= 0.02 - 0.082 = -0.062

There is 95% confidence that there is a difference that lies between - 0.062 and 0.102 on the proportion of students who continued their education in the years, 2017 and 2018.

There is no significant difference between the two.

5 0

3 years ago

What is 28% as a fraction

marysya [2.9K]

Percent means parts out of 100
28%=28/100=14/50=7/25

3 0

3 years ago

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