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iVinArrow [24]
3 years ago
9

Evaluate the following expression . 2*[4+(12+16)/7

Mathematics
1 answer:
Nataliya [291]3 years ago
3 0

Answer:

16

Step-by-step explanation:

2 \times (4 + (12 + 16) \div 7  \\ (12 + 16) = 28 \div 7 = 4 + 4 = 8 \\ 2 \times 8 = 16

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To anyone who's in 8th grade, what did you learn in technology for 3rd quarter. like just give me the unit names or just what yo
Luda [366]

Answer:

You should probably be more specific as different schools have different curriculum's!

Step-by-step explanation:

4 0
3 years ago
Which is another way to write the expression t • (14 - 5)
zaharov [31]
C is the answer by using distributive property

8 0
3 years ago
Read 2 more answers
(Choice A)
Tasya [4]

Answer:

That is an obtuse scalene triangle

Step-by-step explanation:

Scalene- has no congruent sides

Obtuse - has an angle that is greater than 90

we can use Pythagorean theorem to confirm this

The Pythagorean theorem states that in an obtuse triangle the hypotenuse squared is greater than the two legs squared added together

so basically 7^2>4^2+5^2\\7^2=49\\4^2=25\\5^2=25\\25+16=41\\49>41

therefore it is an obtuse scalene

3 0
3 years ago
Read 2 more answers
8 people are equally sharing 12 muffins how many muffins will each person receive
Len [333]
Total number of muffins = 12 muffins
Total number of people sharing muffin = 8

Muffins each person will receive = Total number of muffins
                                                          ---------------------------------
                                                          People sharing muffins
                                                   
                                                    = 12/8
<span>                                                    = </span><span>1 1/2  OR  1.5 muffins
</span>
5 0
3 years ago
Find the variance of this probability distribution. Round to two decimal places.​
attashe74 [19]

Answer:

Variance = 4.68

Step-by-step explanation:

The formula for the variance is:

\sigma^{2} =\frac{\Sigma(X- \mu)^{2}}{N} \\or \\ \sigma^{2} =\frac{\Sigma(X)^{2}}{N} -\mu^{2} \\

Where:

X: Values \\\mu: Mean \\N: Number\ of\ values

The mean can be calculated as each value multiplied by its probability

\mu = 0*0.4 + 1*0.3 + 2*0.1+3*0.15+ 4*0.05=1.15

\frac{\Sigma (X)^{2}}{N} =\frac{(0^{2}+1^{2}+2^{2}+3^{2}+4^{2})}{5} =6

Replacing the mean and the summatory of X:

\sigma^{2} = \frac{\Sigma(X)^{2}}{N} -\mu^{2} \\= 6 - 1.15^{2}\\= 4.6775

4 0
4 years ago
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