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3 years ago

Solve 2x^2+x=15.!!!!

Mathematics

1 answer:

larisa86 [58]3 years ago

8 0

Isolate the variable by dividing each side by factors that dont contain variables

Answer: x=3

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Question 17 of 25

Brilliant_brown [7]

Answer:

Step-by-step explanation:

y = $\frac{5}{2}$ x + 2 → (1)

2y = 5x + 4 ( divide through by 2 )

y = $\frac{5}{2}$ x + 2 → (2)

the 2 equations are the same and will have infinitely many solutions

3 0

1 year ago

The sum of 2 numbers is 100. Twice the first number plus twice the second number is 200. What are the numbers?

dlinn [17]

Answer:

50+50=100

100+100=200

Step-by-step explanation:

The sum of 2 numbers is 100. 50 x 2 = 100

Twice the first number plus twice the second number is 200.

50+50=100 so therfore 100+100 makes 200

6 0

2 years ago

Read 2 more answers

Factor y2 + 8y + 15

vovangra [49]

Y² + 8y + 15
since 8 and fifteen are positive, that means your factors are going to be positive
(y + )(y + )
What are the factors of 15 that add up to 8?

8 0

3 years ago

Simplify the expression. Assume all variables are positive. <br> (r/32s)^8/5

balandron [24]

Answer:

Step-by-step explanation:

Alright, lets get started.

The given expression is :

$(\frac{r}{32s} )^{\frac{8}{5} }$

It could be written as

$(\frac{r}{s} )^{\frac{8}{5} }*(\frac{1}{32} )^{\frac{8}{5} }$

32 could be written as $2^{5}$

So, replacing that in our expression

$(\frac{r}{s} )^{\frac{8}{5} }*(\frac{1}{2^{5} } )^{\frac{8}{5} }$

$(\frac{r}{s} )^{\frac{8}{5} }*(\frac{1}{2} )^{5*\frac{8}{5} }$

$(\frac{r}{s} )^{\frac{8}{5} }*(\frac{1}{2} )^{8}$

$\frac{1}{256}*(\frac{r}{s} )^{\frac{8}{5} }$

This is the simplified form of given expression. : Answer

Hope it will help :)

6 0

2 years ago

A television newscaster from a 24-hour news station wants to estimate the number of hours per day its

svlad2 [7]

Answer:

B, using a sample of size 200

Step-by-step explanation:

just got it right

3 0

2 years ago