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marshall27 [118]
3 years ago
7

Solve for x in the diagram below.

Mathematics
1 answer:
Alika [10]3 years ago
3 0

Answer:

21

Step-by-step explanation:

x+42=3x

-x -x

42=2x

÷2 ÷2

x=21

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HELP PLEASE LOOK AT PICTURE
solniwko [45]

Answer:

It decreases.

Step-by-step explanation:

10 / d

Lets say that it was 10 / 40, which is 10 divided by 40, 0.25.

Now, it has increased to twice the amount of that.

1 / 80, 10 divided by 80, which is 0.125

So, it decreases.

4 0
3 years ago
Read 2 more answers
Find the solution of 3 times the square root of the quantity of x plus 6 equals negative 12, and determine if it is an extraneou
Anna35 [415]
For this case we have the following equation:
 3 \sqrt{x+6}=-12
 Rewriting we have:
 \sqrt{x+6}= \frac{-12}{3}
 \sqrt{x+6}=-4
 We raise both members of the equation to the square:
 (\sqrt{x+6})^2=(-4)^2
 Rewriting we have:
 x+6=16
 x=16-6
 x=10
 It's a extraneous solution because equality is not met by substituting x = 10 in the original equation:
 3 \sqrt{10+6}=-12
 3 \sqrt{16}=-12
 3(4)=-12
 12=-12
 Answer:
 
The solution is:
 
x=10
 It's a extraneous solution

6 0
3 years ago
Find the angle measure C in the parallelogram ABCD.​
Kryger [21]

Answer:

135°

Step-by-step explanation:

In a parallelogram the opposite angles are congruent, so

∠BCD = ∠BAD = 135°

5 0
3 years ago
The table below shows the relative frequencies for part-time and full-time employees at Companies
user100 [1]

Answer: 83%

Explanation: idk how to explain but there ya go

8 0
3 years ago
Please help ill give BRAINLIEST!
uysha [10]

Answer:

27 feet

Step-by-step explanation:

If you draw the triangle, the hypotenuse is 387 feet and an angle is 4 degrees. The leg opposite this angle is 387 \cdot \sin 4^\circ, which is about 26.996, so the nearest foot is 27 feet.

(brainliest pls)

6 0
3 years ago
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