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3 years ago

From the set {30, 42, 84}, use substitution to determine which value of x makes the equation true.

Mathematics

1 answer:

andre [41]3 years ago

4 0

Answer:

Step-by-step explanation:

The correct choice is marked.

If you follow instructions, you will compute the quotient for each value in the set:

2520 ÷ 30 = 84

2520 ÷ 42 = 60 . . . . . the value we're looking for (we need go no further)

2520 ÷ 84 = 30

The easier way to solve the problem is to multiply the equation by x/60, so you have ...

2520 ÷ 60 = x

Then, you're doing one division instead of two or three.

2520 ÷ 60 = 42 = x

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Please do question 4 and 5 only. I will mark brainliest to well explained answers.

Eva8 [605]

4) D
5) 19d

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3 years ago

please help as soon as possible-Solve the right triangle shown in the figure. WIll mark brainliest to first correct answer

Dennis_Churaev [7]

Answer:

option a is the correct answer; ∠A = 68°, ∠B = 22°, AB = 2.9 cm

Step-by-step explanation:

From my understanding, we have to find angle A, angle B and side AB.

Step 1: Find side AB

AB can be solved through the Pythagoras theorem.

c² = a² + b²

c² = 2.7² + 1.1²

c² = 8.5

c = √8.5

c = 2.9 cm

Step 2: Find angle A

Angle A can be found through tan formula

tan (angle) = opposite/adjacent

tan (angle A) = BC/AC

tan (angle A) = 2.7/1.1

Angle A = tan inverse (2.7/1.1)

Angle A = 68°

Step 3: Find angle B

All 3 angles of a triangle are equal to 180°

Angle A + Angle B + Angle C = 180°

68 + B + 90 = 180°

Angle B = 22°

option a is the correct answer; ∠A = 68°, ∠B = 22°, AB = 2.9 cm

6 0

3 years ago

PLEASE ANSWER THIS FAST Will the red square and the orange square always equal the blue square? What colored square is the hypot

Vikentia [17]

Step-by-step explanation:

The area of the blue square will always equal the sum of the area of the orange and red rectangles

The pythagorian theorem:

a²+b² = c²

now let a be the side of the red triangle and b the side of the orange one

so a² is the area of the red triangle and b² is the area of the orange one

Let c be the side of the blue rectangle

so c² is the area of it

then what we concluded is right

the hypotenuse is the blue side since it is the larger one

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3 years ago

1. 14=7b 2. -11=k/4 3.6z=-6

Romashka-Z-Leto [24]

Answer:

the anwer is 14-2294-dhi2

Step-by-step explanation:

Because 14 is - 4 you multiple to 5 equal= dhi2

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2 years ago

What is 92 divided by 2?

Vikentia [17]

46. Fortysix times 2 equals 92.

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3 years ago