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Alecsey [184]
4 years ago
6

Solve the equations 3+9(1-5r)=25

Mathematics
1 answer:
cupoosta [38]4 years ago
4 0


Rearrange ➡ 3 + 9 × (1 - 5r) - (25)

Step 1. Equation ⬇

(3+9 × (1 - 5r )):- 25 = 0



Step 2. Take out the like terms (factors) ⬇

-45r - 13 = -1 × (45 + 13 )

Equation part 2 ➡ -45 - 13 = 0

Add 13 to both sides of the equation ➡ -45=13

Multiply both sides of the equation by (-1 ) : 45r= -13


divide both sides of the equation by 45

r= -0.289

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Two fair dice are rolled. What is the probability that the first die rolled a 2 and the second die rolled a number greater than
DIA [1.3K]

Answer: first: 1/6   second dice: 4/6

Step-by-step explanation:

So we know that a  dice have the numbers 1,2,3,4,5, and 6 .

So the the probability that first die rolled 2 is 1/6 because there appears only on 2 .

and the probability that the second dice rolled a number greater than 2 is 4/6 or 2/3 because there are 4 numbers greater than 2 out of the 6 total .

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3 years ago
A recipe calls for 4 apples to serve 6 people. If Jack is planning to serve a crowd of 33 people, how many apples should he use?
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How to simplify radical expressions
Veseljchak [2.6K]
Hey there!

To simplify radical expressions, refer to the conversion of a radical expression to a number with an exponent:

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Remember that if you don't see an index, there is an implied "2" that will go where "a" is. 

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5 0
3 years ago
HELP! PLZ I NEED THIS ASAP
harina [27]

Answer:

2x^{4}+x^{3}-x+2

Step-by-step explanation:

To find which one is prime, let's try to factor them all. We can use the factoring by grouping method.

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x^{2}(x+3)and-2(x+3)

So this one is not prime, since you can still factor it.

x^{3}+2x^{2}-3x-6

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x^{2}(x-2)and3(x-2)

So this one is not prime, since you can still factor it.

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4x^{3}(x+1)and-2(x+1)

So this one is not prime, since you can still factor it.

2x^{4}+x^{3}-x+2

2x^{4}+x^{3}and-x+2

x^{3}(2x+1)and -x+2 cannot be further factored.

Therefore, 2x^{4}+x^{3}-x+2 is a prime.

6 0
3 years ago
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