PLEASE HELP ILL GIVE BRAINLIEST!

Mathematics

2 answers:

notsponge [240]2 years ago

8 0

Answer: Image #1: C. Distributuve Property Image #2: A. n + 2(7)

Step-by-step explanation: For Image #1, they used the Distributive Property because the number 3 was (distributed) and multiplied to both x and 7. The equation is saying that 3x + 21 = 42, and that we’re trying to solve for x. For Image #2, the answer is A. n + 2(7) because after you solve the expression, the answer would be 14n. When you look at the four options, (A. B. C. D.), letter A. would be the answer because it equals to 14n.

Svetradugi [14.3K]2 years ago

3 0

For qn2 :
2(n+7) = 2n + 14
hence, the answer is C as 2n + 2(7) = 2n + 14 as well

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HELP, I NEED HALP ASAP 180=x+(3x-8)

jok3333 [9.3K]

Answer:

x=47

Step-by-step explanation:

Let's solve your equation step-by-step.

180=x+3x−8

Step 1: Simplify both sides of the equation.

180=x+3x−8

180=x+3x+−8

180=(x+3x)+(−8)(Combine Like Terms)

180=4x+−8

180=4x−8

Step 2: Flip the equation.

4x−8=180

Step 3: Add 8 to both sides.

4x−8+8=180+8

4x=188

Step 4: Divide both sides by 4.

4x4=1884

x=47

3 0

2 years ago

What is the product of 4+3i and 4-3i

mash [69]

Use the formula $(a+b)(a-b)=a^2-b^2$ .

$(4+3i)(4-3i)=4^2-(3i)^2=16-9i^2 \\ \\
i^2=-1 \\ \\
16-9i^2=16-9 \times (-1)=16+9=25 \\ \\
\boxed{(4+3i)(4-3i)=25}$

7 0

2 years ago

Read 2 more answers

WHATS THE MEASURE OF THE ANGLE INDICATED? GEOMETRY/PLS HELP/GOD BLESS

ch4aika [34]

Answer:

∠SQR = 1/2 m ∠SR = 1/2 x 86 = 43°

5 0

2 years ago

A person walks in a distance x northward, turns around and walks a distance 7.00x southward. if the total displacement of the pe

lisov135 [29]

Distance southward = 6x = 400, so x=66.66
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