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2 years ago

Plz no stupid answers .Correct answer will be marked as brainliest.

Mathematics

2 answers:

jeka942 years ago

3 0

Answer:

x= 5 /2 , − 4

Step-by-step explanation:

Factor and set each factor equal to zero.

Anna11 [10]2 years ago

3 0

Answer: x=-4, x=5/2

Step-by-step explanation:

To factor the expression, you want to break up the expression into 2 parts.

2x²+3x-20

(2x²-5x)+(8x-20) [factor each part]

x(2x-5)+4(2x-5) [take out x+4]

(x+4)(2x-5) [set each factor equal to 0]

x=-4

x=5/2

Now, we know that x=-4 and x=5/2.

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HELP PLEASE. Find x & y round answer to the nearest tenth!

trapecia [35]

Answer:

y=18.2 x=5.6

Step-by-step explanation:

sin 73 = y/19

19 sin 73 = y

cos 73 = x/19

19 cos 73 = x

3 0

3 years ago

Choose the correct simplification of x to the 12th power times z to the 11th power all over x to the 2nd power times z to the 4t

Umnica [9.8K]

Answer:

<h3>The option A) $x^{10}z^7$ is correct answer.</h3><h3>The correct simplification for the given expression $\frac{x^{12}\times z^{11}}{x^2\times z^4}$ is $x^{10}z^7$ </h3>

Step-by-step explanation:

Given expression is x to the 12th power times z to the 11th power all over x to the 2nd power times z to the 4th power.

The given expression can be written as $\frac{x^{12}\times z^{11}}{x^2\times z^4}$

<h3>To choose the correct simplification of the given expression :</h3>

Now we have to simplify the given expression as below

$\frac{x^{12}\times z^{11}}{x^2\times z^4}$

$=x^{12}\times z^{11}(x^{-2}\times z^{-4})$ ( by using the identity $\frac{1}{a^m}=a^{-m}$ )

$=(x^{12}.x^{-2})\times (z^{11}.z^{-4})$

$=x^{12-2}\times z^{11-4}$ ( by using the identity $a^m.a^n=a^{m+n}$ )

$=x^{10}\times z^7$

$=x^{10}z^7$

∴ $\frac{x^{12}\times z^{11}}{x^2\times z^4}=x^{10}z^7$

<h3>The correct simplification for the given expression $\frac{x^{12}\times z^{11}}{x^2\times z^4}$ is $x^{10}z^7$ </h3><h3>Hence option A) $x^{10}z^7$ is correct answer.</h3>

4 0

3 years ago

pychu [463]

Answer:

B 8.56

this is the answer because you simply add what he bought so 1.13+1.13+1.76 which is 4.02 then subtract what he started with which was 12.58 so 12.58-4.02 is 8.56 so that's your answer

8 0

2 years ago

Read 2 more answers

3(7 + x) verbal expression

Basile [38]

Answer:

21+3x

Step-by-step explanation:

multiply the 3 by everything inside the parentheses

4 0

2 years ago

10 POINTS!

katrin2010 [14]

Answer:

A = yes

B = no

C = yes

D = no

E = yes

F = yes

Hope I helped!!!

7 0

2 years ago