3 years ago

How many people were polled?

Mathematics

2 answers:

tester [92]3 years ago

8 0

Answer:

Step-by-step explanation:

mario62 [17]3 years ago

7 0

Answer:166

Step-by-step explanation:

i got this correct on edenuity quiz

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Lamont took a psychology exam whose mean was 70 with standard deviation 5. He also took a calculus exam whose mean was 80 with s

katovenus [111]

Answer:

Lamont performed better in psychology test.

Step-by-step explanation:

please kindly see the attached files for explanation

8 0

3 years ago

I need help ASAP!!!!!!!!!!!!!

Ede4ka [16]

The first question is 50% because a total of 30 girls bought lunches out of 60 kids

the second question, the easiest way is to plug in the x and y coordinates
3(4) - 2(0) = 12
12-0=12
12=12
because 12 = 12 is true, the first pair is the answer

4 0

3 years ago

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Which of the following expressions would give the number of ways to choose a group of 7 from a group of 15?

OLga [1]

Answer:

Step-by-step explanation:

The number of ways to choose a combination of 7 objects from a group of 15 objects is 15! / (7! 8!)

5 0

2 years ago

The expressions a(8x+7) and 4x+3.5 are equivalent. What is the value of a?

valentina_108 [34]

Answer:

a=1/2

Step-by-step explanation:

From the question, the expression a(8x+7) is equivalent to 4x+3.5

Which means that multiplying 8x by a gives 4x and multiplying 7 by a gives 3.5

So, we can write the following to find the value of a

$a(8x+7)\equiv 4x+3.5$

we can write the following

8ax=4x

$\implies a=\frac{4x}{8x}= \frac{1}{2}$

Hence the value of a is 1/2

4 0

4 years ago

Solve this two step equation = 6x + 8 = 74. Please solve for x.

AysviL [449]

6x + 8 = 74

-8 -8

6x = 66

/6 /6

x = 11

PLEASE RATE AS THE BRAINLIEST ANSWER! THANK YOU! :)

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4 years ago

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