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lutik1710 [3]
2 years ago
5

I need help with this math problem plz help and plz explain your answer​

Mathematics
2 answers:
IceJOKER [234]2 years ago
8 0

Answer:

34.04 cm²

Step-by-step explanation:

Formula for a trapezoid:

a + b ÷ 2 × height

Substitute the values:

11.7 + 3.1 = 14.8

14.8 ÷ 2 = 7.4

7.4 × 4.6 = 34.04

The answer is 34.04 cm²

Elanso [62]2 years ago
7 0

Answer:

i've done this before but i forgot how i explained it, but it's the first one

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in a triangle, a 32° angle is between two sides of 6 feet and 8 feet. what is the length of the thrid side, in feet?​
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Answer:

4.3 feet

Step-by-step explanation:

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3 years ago
A delivery truck traveled 324 miles on 18 gallons of gas. How far can be traveled on 41 gallons of gas?
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The wall street journal corporate perceptions study 2011 surveyed readers and asked how each rated the quality of management and
malfutka [58]

Answer:

Hello some parts of your question is missing below is the missing part

answer : A) p-value =  0.0019 ,

The level of significance ( 0.05 ) > p-value ( 0.0019 )

B) There is no dependence between the two ratings

Step-by-step explanation:

A) using a 0.05 level of significance and test for independence of the quality of management

Test statistic : X^{2}  ∑ ( Oi - Ei )^2 / Ei

= [(40-35)^2 / 35 ] +  [(25-24.5)^2 / 24.5 ] +  [(5-10.5)^2 / 10.5]  +  [(35-40)^2 / 40]  +  [(35-28)^2 / 28]  +  [(10-12)^2 / 12]  +   [ (25-25)^2 / 25 ]  +  [(10-17.5)^2 / 17.5 ]  + [(15-7.5)^2 / 7.5]  =  17.03  

p-value = 0.0019

Df = 4  ,

The level of significance ( 0.05 ) > p-value ( 0.0019 )

B) There is no dependence between the two ratings

4 0
3 years ago
(Four-fifths + three-fifths) + 3.5 times 5
defon

Answer:

18.9

Step-by-step explanation:

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7 0
3 years ago
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What is the sum of the numbers 24+40 as the product of their gcf and another sum
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This is really conusing
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