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aalyn [17]
2 years ago
7

How would you prove that x=5 is true to the equation of 3x=10-5?

Mathematics
1 answer:
DENIUS [597]2 years ago
8 0

Answer:

so x = 5 is not true statement

Step-by-step explanation:

well to prove x = 5 you need to get get alone or solve for x

3x = 10-5 --> 3x = 5

now you need to get x alone do this by dividing 3 by both sides

3x = 5 --> x = 5/3

x = 1.6

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6x+5y+2z=41<br> 4x-10z=-10<br> -x-2y+2z=-1
Rasek [7]
\left[x \right] = \left[ \frac{5\,y}{158}+\frac{6\,z}{79}\right][x]=[​158​​5y​​+​79​​6z​​]
3 0
3 years ago
The hypotenuse and one of the legs of a right triangle form an angle that has a cosine of 2 √2 .
Tems11 [23]
Quick answer I don't think this has an answer.

If you take the cos-1(2 sqrt(2)) your calculator should have a fit. Let's check that out. Mine certainly does. So there is something wrong with the question. If there is something to add in please do it and I will it least put an answer in the comments. As it stands, nothing will work. 

If you put your calculator in radians, you will get an answer but it will not be anything resembling the choices you've listed.

If you meant sqrt(2) / 2 that would give 45o. Put it in your calculator like this 2 ^ 0.5 divided by 2 = 0.707
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7 0
3 years ago
Read 2 more answers
One angle of a triangle has a measure of 36°. The measure of the third angle is 28° less than 3 times the measure of the second
Alex_Xolod [135]

Answer:

  1. Define your variable and write your equation:  36 + b + (3b-28) = 180°.
  2. measure of the second angle: 43°.
  3. measure of the third angle: 101°

Step-by-step explanation:

a = 36

c = 3b - 28

a + b + c = 180°

a = measure of the first angle

b = measure of the second angle

c = measure of the third angle

then:

1)  36 + b + (3b-28) = 180   ⇒ )Define your variable. Write your equation and solve)

b + 3b + 36 - 28 = 180

4b + 8 = 180

4b = 180 - 8

4b = 172

b = 172/4

2)   b = 43°        ⇒   measure of the second angle

c = 3b - 28

c = 3*43 - 28

c = 129 - 28

3) c = 101°      ⇒   measure of the third angle

Check:

36° + 43° + 101° = 180°

8 0
3 years ago
Can somebody help me please?
Gnesinka [82]

Answer:

$22.50

Step-by-step explanation:

C= 0.20X+14.50

C=0.20(40)+14.50

C=8+14.50

C=22.50

5 0
3 years ago
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Does the statement "3x8 = 4x6" illustrate the communtative property of multipulcation
Alenkasestr [34]
Yes "3x8 = 4x6" does illustrate the commutative property of multiplication.
7 0
3 years ago
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