3 years ago

Can someone help me!

Mathematics

2 answers:

defon3 years ago

6 0

Answer:

it might be positive 9 because -5+14=9

Step-by-step explanation:

lawyer [7]3 years ago

3 0

Answer:

Step-by-step explanation:

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Varvara68 [4.7K]

I don't know about the first one but the second one is 34.9°. It would be that because are right angles add up to 90° and if you subract 55.1 and 90 it would equal 34.9. But this rule only works on right angles.

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Kelly earned $20 for babysitting. She has also earned money by doing chores for 5 weeks. Altogether, she has earned $100. How mu

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Answer: 16

Step-by-step explanation:

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Find the circumference of the object

ivolga24 [154]

Answer:

28.26

Step-by-step explanation:

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2 years ago

Which probability distribution table corresponds with this frequency distribution table

nlexa [21]

Answer:

$\begin{array}{cccccc}x&1&2&3&4&5\\f&0.2&0.3&0.05&0.2&0.25\end{array}$

Step-by-step explanation:

First find the sum

$\sum f=4+6+1+4+5=20.$

Now, find the probabilities:

$Pr(x=1)=\dfrac{4}{20}=\dfrac{1}{5}=0.2;$
$Pr(x=2)=\dfrac{6}{20}=\dfrac{3}{10}=0.3;$
$Pr(x=3)=\dfrac{1}{20}=0.05;$
$Pr(x=4)=\dfrac{4}{20}=\dfrac{1}{5}=0.2;$
$Pr(x=5)=\dfrac{5}{20}=\dfrac{1}{4}=0.25.$

Hence, the frequency distribution table is

$\begin{array}{cccccc}x&1&2&3&4&5\\f&0.2&0.3&0.05&0.2&0.25\end{array}$

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3 years ago

Rewrite 9+7=16 using the commutative law of addition

avanturin [10]

Commutative law: a+b=b+a thats it...
So 9+7 can also be written as 7+9=16

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