(2x-20)(5x+10)
help pls

Answers

Answer 1

Answer: Développement
10x + 20x -100x -200
=-70x -200

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I need help pleaseee

Answers

Oof that looks really hard sorry can’t help but wish u good luck...

What needs to be done before you try to solve the equation 2x2 = -6+ 8a?

Answers

Answer: You need to separate the variable (A) from the rest of the equation.

Step-by-step explanation:

Simplify and move everything except the variable
2x2 = -6 + 8a >>> 4 = -6 + 8a >>> 10 = 8a
Then, divide both sides by the amount of A (8)
10 / 8 = 1.25
8 / 8 = 1
1.25 = A

Given Δ ABC ≅ Δ EFG, What is the value of x? A. x= 45 °
B. x= 50 °
C. x= 85 °
D. x= 135 °

Answers

Answer: The correct option is (A) 45.

Step-by-step explanation: We are given that triangles ABC and EFG are congruent to each other, where

$m\angle A=50^\circ,m\angle G=85^\circ,m\angle B=x^\circ.$

We are to find the value of x.

We know that the corresponding angles of congruent triangles have equal measures.

So, m∠A = m∠E, m∠B = m∠F and m∠C = m∠G.

Also, since the sum of three angles of a triangle is 180 degrees, so from triangle ABC, we get

$m\angle A+m\angle B+m\angle C=180^\circ\n\n\Rightarrow 50^\circ+85^\circ+x^\circ=180^\circ\n\n\Rightarrow 135^\circ+x^\circ=180^circ\n\n\Rightarrow x^\circ=180^\circ-135^\circ\n\n\Rightarrow x^\circ=45^\circ\n\n\Rightarrow x=45.$

Thus, the required value of x is 45.

Option (A) is CORRECT.

Answer:

A. x = 45

Step-by-step explanation:

m<C = m<G = 85°

m<A + m<B + m<C = 180°

50° + x° + 85° = 180°

x = 45

Solve this question? -7x-18=3

Answers

-7x - 18 = 3
-7x = 21
x= -3

the answer to the equation is 3

Sin x= 0.46 what is the value of x

Answers

i did it over and i got this

Change 12.39% to a decimal

Answers

To change a number to percent, move the
decimal point 2 places that way ==> .

To change a percent to a number, move the
decimal point 2 places this way <== .

12.39% = 0.1239 .

Answer:

The answar is 0.1239

Step-by-step explanation:

The percent sign tells un to divide 12.39 by a hundred(12.39/100). Divide 12.39 by hundred and you get 0.1239

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