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3 years ago

Help me pleaseeeeeee

Mathematics

1 answer:

morpeh [17]3 years ago

3 0

Answer:

Step-by-step explanation:

u move the decimal place left 2 spaces and u would get 0.024

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Which of the following is the complete factorization of 25a 2-100

Westkost [7]

Answer:

25(a-2)(a+2)

Step-by-step explanation:

25a^2 -100

We can factor out 25

25(a^2 -4)

a^2 -4 is the difference of squares a^2-b^2= (a-b)(a+b)

where a =a and b=2

a^2 -4 = (a-2)(a+2)

25a^2 -100 = 25(a-2)(a+2)

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3 years ago

What is the value of x in the equation<br> 3x - y = 30, when y = 15?

Daniel [21]

Answer:

x = 15

Step-by-step explanation:

3x - y = 30

Given;

y = 15

To find;

value of 'x'

Putting the value of y in the given equation;

3x - 15 = 30

3x = 30 + 15

3x = 45

x = 45/3

x = 15

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3 years ago

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Please help i am not passing my math class i will give you the brainliest I am struggling

mash [69]

Answer:

x=-6

Step-by-step explanation:

(8x-15)=(3x-45)

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3 years ago

Suppose that a certain college class contains 35 students. of these, 17 are juniors, 20 are social science majors, and 12 are ne

seraphim [82]

A) Suppose $J$ is the set of juniors and $S$ is the set of social science majors. There are 35 students in all, but 12 of them don't belong to either set, so $|J\cup S|=35-12=23$ . Then

$|J\cap S|=|J|+|S|-|J\cup S|=17+20-23=14$

So the probability that a random student is both a junior and social science major is $\mathbb P(J\cap S)=\dfrac{14}{35}$

b) We're looking for the probability $\mathbb P(S\mid J)$ . By definition, this would be

$\mathbb P(S\mid J)=\dfrac{\mathbb P(S\cap J)}{\mathbb P(J)}=\dfrac{\frac{14}{35}}{\frac{17}{35}}=\dfrac{14}{17}$

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3 years ago

Use PEMDAS to evaluate the expression 24 ÷ 3 + 6 x 4 − 11. 19 21 22 24<br> asap

monitta

Answer:

The answer is 21 if you use PEMDAS.

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3 years ago

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