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2 years ago

Simplify (2x2−4x+5)+(x2+3x−7)and put in standard form.

Mathematics

2 answers:

elena-s [515]2 years ago

6 0

Answer:

3x^2 - x - 2 (simplified)

3x^2 - x = 2 (standard form)

Step-by-step explanation:

Pavlova-9 [17]2 years ago

3 0

Answer:

$3x^2 - x - 2$

Step-by-step explanation:

<u>Step 1: Combine like terms</u>

$(2x^2- 4x + 5) + (x^2 + 3x - 7)$

$2x^2 - 4x + 5 + x^2 + 3x - 7$

$(2x^2 + x^2) + (-4x + 3x) + (5 - 7)$

$3x^2 - x - 2$

Answer: $3x^2 - x - 2$

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12) A bag contains four red marbles and eight

DiKsa [7]

Answer: 8/12% 6/11%

Step-by-step explanation: so 4 red marbles and 8 blue marbles so in total that's 12 marbles so if you have 8 blue marbles you have a 3/4 chance of getting blue but only 1/4 chance of red

So 5 green marbles and 6 yellow marbles so in total that's 11 marbles so if you have 6 yellow marbles you have a 3/4 chance of getting yellow but only 1/4 chance of green

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3 years ago

The recycling bin in the shape of a rectangular prism is 15.5 inches long, 8 inches wide and 7 inches high. The recycling bins n

Viktor [21]

Answer:

694 cubic inches

Step-by-step explanation:

Dimension of prism

Length = 15.5 inches

width = 8 inches

height = 7 inches

Volume of regular prism is given by area of base * height

area of base = length * width ( as bin is rectangular)

area of base = 15.5 * 8 square inches = 124 square inches

Volume of regular prism = area of base * height

= 124 * 7 cubic inches = 868 cubic inches

_________________________________________________

868 cubic inches is the full capacity of the recycling bin

it is given that recycling bins need to be emptied when it is 80% full

so we need to find the 80% capacity of recycling bin

80% capacity of recycling bin = 80/100 * full capacity of the recycling bin

= 0.8 * 868 cubic inches = 694.4 cubic inches

694.4 cubic inches is the amount needed before the recycle bin is ready to empty .

But question says answer should in nearest cubic inch

hence answer is 694 cubic inches

3 0

3 years ago

Given g(x) = :-2 +4, solve for a when g(x) = 0.

evablogger [386]

Answer:

-7/4

Step-by-step explanation:

You are looking for the composite g(f(2)). The simplest way to solve this is to evaluate f(2) and enter the solution in to your g function.

g(f(2))=g(-(2)^2-2(2)+4)=g(-4-4+4)=g(-4)

g(-4)=4/(-4(-4)-2)=4/(16-2)=4/14=2/7

Therfor, g(f(2))=2/7 **I'm assuming the -4x-2 is all in the denominator of the g(x) function. If -2 is not in the denominator you would have

g(f(2))=4/(-4(-4)) -2=4/16 -2=1/4 -2=1/4-8/4= -7/4

8 0

3 years ago

:. Solve for w. P = 2(1 + w)

iragen [17]

answer : 1 = P/2 - 2

6 0

2 years ago

Read 2 more answers

Plzzzz help will give brainliest needs to be done my 11:30 plzz will fail in not answered by that time

navik [9.2K]

(c/ b * 0) is just (c/0) and you cannot divide by 0

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3 years ago