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3 years ago

Please help with math

Mathematics

1 answer:

MAVERICK [17]3 years ago

7 0

Personally I prefer non of these definition. But for the sake of a multiple choice question, I can see that the last one to be the "closest".

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What is 417 in expanded from ?

myrzilka [38]

Answer:

400 + 10 + 7

Step-by-step explanation:

it could be 4 times 100 plus 10 times 1 plus 1 times 7

4 0

3 years ago

A local university wanted to understand what students prefer to eat during finals. They asked 1000 students, "Do you prefer chic

olga55 [171]

Answer:

$P(\text{Pizza}\ |\ \text{Female})=0.225$

Step-by-step explanation:

The two-way frequency table is attached below.

We have to calculate the probability of, a person chosen at random prefers pizza given that they are female, i.e $P(\text{Pizza}\ |\ \text{female})$

This is a conditional probability.

We know that,

$P(A\ |\ B)=\dfrac{P(A\ \cap\ B)}{P(B)}$

So,

$P(\text{Pizza}\ |\ \text{Female})=\dfrac{P(\text{Pizza}\ \cap\ \text{Female)}}{P({\text{Female}})}$

From the table,

$P(\text{Pizza}\ \cap\ \text{Female)}=\dfrac{119}{1000}$

$P({\text{Female}})=\dfrac{530}{1000}$

Putting the values,

$P(\text{Pizza}\ |\ \text{Female})=\dfrac{P(\text{Pizza}\ \cap\ \text{Female)}}{P({\text{Female}})}=\dfrac{\frac{119}{1000}}{\frac{530}{1000}}=0.225$

8 0

3 years ago

What is the sum of the angles 'a' and 'b' from the diagram below.

VikaD [51]

Answer:

90+ 135= 225

Step-by-step explanation:

a can be found with formula (n-2)×180/n, where n is number of sides

a= 135

b=90

3 0

3 years ago

How many triangles of any size are there in a star?

noname [10]

There are many shapes of a star. It depends on the shape of the star. If you’re referring to this star, then the number of triangles is 5.

Hope this answers your question!

6 0

2 years ago

How many cubes were used to make this figure?

Paha777 [63]

Answer:

I think its 30 I'm not 100% sure tho

3 0

3 years ago

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