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noname [10]
3 years ago
10

Is x = 7 a solution to the equation 3x = 21? yes no WHICH ONE??

Mathematics
2 answers:
cricket20 [7]3 years ago
5 0

Answer:

Yes

Step-by-step explanation:

because when you plug in 7 it equals 21, so x=7 is a solution

Veronika [31]3 years ago
4 0

Answer:

yes.

Step-by-step explanation:

if you plug 7 into x it'll be 3x7 and that will equal 21

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PLZ HELP ASAP!!
Lilit [14]

The measure of first angle is 34 degrees and measure of second angle is 56 degrees

<em><u>Solution:</u></em>

Given that, the exterior sides of two adjacent angles make a right angle

Therefore, these adjacent angles forms 90 degrees

Let the second angle be "x"

The first angle has a measure that is six more than half the second

Therefore,

first angle = 6 + half of "x"

\text{ first angle } = 6 + \frac{x}{2}

Since these two angles forms 90 degrees,

first angle + second angle = 90

x + 6 + \frac{x}{2} = 90\\\\\frac{2x + 12 + x}{2} = 90\\\\2x + 12+x = 180\\\\3x + 12 = 180\\\\3x = 180 - 12\\\\3x = 168\\\\x = 56

<em><u>Therefore, first angle is:</u></em>

\rightarrow 6 + \frac{56}{2} = 6 + 28 = 34

Thus measure of first angle is 34 degrees and measure of second angle is 56 degrees

6 0
3 years ago
ASAP MAJOR HELP NEEDED. I really need help. I am very confused on how to do this please help.
alexandr402 [8]

Because the 2 sides of the triangle are the same, they are both 21, the two bottom angles would also be the same.


The 3 inside angles of a triangle must equal 180 degrees.


The top angle is given as 38, so the remaining two angles must equal 180 - 38 = 142 degrees.


Since the 2 bottom angles would be the same, divide 142 by 2 to get x.

X = 142 / 2 = 71 degrees.


6 0
3 years ago
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M- Determine whether or not the procedure described below results in a binomial distribution. If it is not​ binomial, identify a
Igoryamba

Answer:

A. Yes, the result is a binomial probability distribution.

Step-by-step explanation:

The experiment above depicts a binomial probability distribution because the 4 required conditions are met :

1.) The distribution is independent as the possible outcome of each trial is the same.

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3.) The number of observation is fixed at sample size of 5500

4.) The probability of success and failure of each trial is the same for all trials in the sample.

Hence, we can conclude that the experiment depicts a binomial probability distribution.

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2 years ago
Which of the angles is inscribed in •X ?
ira [324]

Answer:

It is BFA

Step-by-step explanation:

An inscribed angle stays inside the circle. If you go through each angle options, the other angles go out of the circle. BFA is the only angle that stays inside the circle.

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3 years ago
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The area of the garden 10 ft•50 ft= 500 sq ft
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