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Firlakuza [10]
3 years ago
9

How to factor y=x^2-4x-45

Mathematics
1 answer:
natulia [17]3 years ago
6 0

Answer:

(x+5)(x-9)

Step-by-step explanation:

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What is the 10% of 3000?​
mrs_skeptik [129]

Answer:

300

Have a good day!

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2 years ago
A classroom fish tank contains x goldfish the tank contains four times as many cups as goldfish enter an equation that represent
lisov135 [29]
I’m confused on the question…please retype it and i’ll be able to answer
7 0
2 years ago
It is estimated that 35% of households own a riding lawn mower. A sample 19 households is studied. What is the mean number of ho
hjlf

Answer:

The mean number of households who own a riding lawn mower is 6.65.

Step-by-step explanation:

For each household, there are only two possible outcomes. Either there is a riding lawn mower, or there is not. The probability of a household having a riding lawn mower is independent of other households. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability.

The expected value of the binomial distribution is:

E(X) = np

35% of households own a riding lawn mower.

This means that p = 0.35

A sample 19 households is studied.

This means that n = 19

What is the mean number of households who own a riding lawn mower

E(X) = np = 19*0.35 = 6.65

The mean number of households who own a riding lawn mower is 6.65.

6 0
3 years ago
the Suarez family pay $23.25 for three movie tickets at the rate could the family use a $100 gift certificate to buy 12 tickets
postnew [5]
Yes if you don't count the tax 


6 0
3 years ago
Read 2 more answers
Solve: 5x^2 + 25x = 0.<br> x = 0, x = 5<br> x = 0, x = −5<br> x = −5, x = 0, x = 5<br> x = 5, x = 25
MArishka [77]
5x^2 + 25x = 0
5x(x + 5) = 0
x = 0, -5

The answer is: x = 0 and x = -5.
7 0
3 years ago
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