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Inessa [10]
4 years ago
11

(2b^2 - 5b) - (7b + 3b^2)

Mathematics
1 answer:
Marta_Voda [28]4 years ago
8 0

Answer:

-13b

Step-by-step explanation:

(2b^2 - 5b) - (7b + 3b^2)

-3b^2 - 10b^2 = -13b

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I need help asap thanks
Sunny_sXe [5.5K]
V=hb

h= \frac V b

h = \dfrac{ x^3 - 3x^2 + 5x - 3}{x^2 -2}

Expressing that as a quotient and remainder,

h =x - 3 = \dfrac{ 7 x - 9} { x^2 - 2}

First choice.



7 0
3 years ago
Okay i need help finding y x 6 for y = 2/3 please help
aleksandr82 [10.1K]
First, you need to substitute y for 2/3:

2/3 • 6

Next, change 6 into a fraction and multiply straight across:

2/3 • 6/1
12/3

Finally, simplify it to its simplest form:

4
Your answer should be 4.
Hopefully that helped!
4 0
4 years ago
WILL MARK BRAINLYIEST
Eddi Din [679]
Hello, and thank you for posting your question here on brainly.

When you're dividing two fractions, there's a simple rule to follow.

You flip the second fraction, (aka reciprocal) and then multiply.

2/3 ÷ 1/4 = 2/3 * 4/1

You multiply across from the top and bottom.

2/3 * 4/1 = 8/3

8/3 = 2 2/3

Your final answer is C.

Hope this helps! ☺♥
6 0
3 years ago
Read 2 more answers
How many ounces of a 19% alcohol solution and a 37% alcohol solution must be combined to obtain 90 ounces of a 24% solution
bogdanovich [222]

Answer:

19% alcohol solution = 65 ounces

37% alcohol solution = 25 ounces

Step-by-step explanation:

Let

19% alcohol solution = x

37% alcohol solution = y

x + y = 90 (1)

0.19x + 0.37y = 90*0.24

0.19x + 0.37y = 21.60 (2)

from (1)

x = 90 - y

Substitute into (2)

0.19x + 0.37y = 21.60

0.19(90-y) + 0.37y = 21.60

17.1 - 0.19y + 0.37y = 21.60

- 0.19y + 0.37y = 21.60 - 17.1

0.18y = 4.5

y = 4.5/0.18

y = 25 ounces

x + y = 90 (1)

x + 25 = 90

x = 90 - 25

x = 65 ounces

6 0
3 years ago
Find the value of each expression <br> -22-(-5)
mina [271]

Answer:

-17

Step-by-step explanation:

-22-(-5) = -22+5 = -17

5 0
3 years ago
Read 2 more answers
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