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1 year ago

PLS HELP WILL MARK YOU BRAINLIEST!!!

Mathematics

2 answers:

Lena [83]1 year ago

8 0

Answer:

The answer is B

Step-by-step explanation:

3x - 2x^2 + 3 -(-5x^2 + 3x + 5)

3x - 2x^2 + 3 + 5x^2 - 3x - 5

= 3x^2 - 2

Angelina_Jolie [31]1 year ago

6 0

$\\ \sf\longmapsto (3x-2x^2+3)-(-5x^2+3x+5)$

$\\ \sf\longmapsto 3x-2x^2+3+5x^2-3x-5$

$\\ \sf\longmapsto 5x^2-2x^2+3x-3x+3-5$

$\\ \sf\longmapsto 3x^2-2$

You might be interested in

Given ; 2(10-13x)+9x=-34x+60

rewona [7]

Try comparing your solution with the following:

Solution:

$2(10-13x)+9x=-34x+60\\(20-26x)+9x=-34x+60\\20-26x+9x=-34x+60\\20-17x=-34x+60\\20-60=-34x+17x\\-40=-17x\\x=\frac{40}{17}$

Answer:

$x=\frac{40}{17}$

Check:

$2[10-13(\frac{40}{17})]+9(\frac{40}{17})=-34(\frac{40}{17})+60\\-20=-20$

Hope this was helpful.

3 0

2 years ago

Answer questions 10 and 11 based on the information below.

ollegr [7]

Answer:

10. As the temperature increases the number of people increases.

Step-by-step explanation:

Because its better to go to a pool when its hot.

sry i dont know 11 :(

5 0

2 years ago

Read 2 more answers

Find the area of the figure. 12 ft 18 ft 18 ft 36 ft

Nataly_w [17]

Answer:

139968

Step-by-step explanation:

Multiply the all of the numbers together and you have your answer (:

7 0

2 years ago

Will give Brainiest and 5 stars... if correct. All wrong answers will, and can be reported

katovenus [111]

Answer:

x = 23

Step-by-step explanation:

These angles are equal to each other because they're vertical angles:

2x + 1 = 47

2x = 47 - 1

2x = 46

x = 23

3 0

2 years ago

Read 2 more answers

Which expression is equivalent

RUDIKE [14]

Given expression is

$\sqrt[4]{\frac{16x^{11}y^8}{81x^7y^6}}$

Radical is fourth root

first we simplify the terms inside the radical

$\frac{x^{11}}{x^7}=x^4$

$\frac{y^(8)}{y^6}=y^2$

So the expression becomes

$\sqrt[4]{\frac{16x^4y^2}{81}}$

Now we take fourth root

$\sqrt[4]{16} = 2$

$\sqrt[4]{81} = 3$

$\sqrt[4]{x^4} = x$

We cannot simplify fourth root (y^2)

After simplification , expression becomes

$\frac{2x\sqrt[4]{y^2}}{3}$

Answer is option B

7 0

2 years ago