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2 years ago

Its not too hard but can someone explain this to me?

2 answers:

6 0

2x + 5 = 2x - 5

You’d subtract 2x from both sides to get rid of it

2x + 5 = 2x -5. You get 5 = -5
-2x -2x

Since 5 is not equal to 5, there would be no solution.

Hope I helped :)

aliya0001 [1]2 years ago

3 0

Answer:

B. No solutions

Step-by-step explanation:

If you try to simplify it, you get

2x-2x = -5-5 or

0 = -10

Which will not be true for any value of x.

If you would draw the lines y = 2x+5 and y=2x-5, you'd see two parallel lines that never intersect. The intersection would be the solution, but, it never happens.

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Sep 08, 12:33:18 AM

Reptile [31]

Answer:

3x - y = -5

-3x -3x

-y = -3x -5

-1 -1 -1

y = 3x + 5

Step-by-step explanation:

subtract 3x from both sides. 3x cancel 3x, but it can't cancel -5 since it doesn't have any x.
since y is negative, divide both sides by -1.
the slope here is 3x, but the slope intercept form is y = 3x + 5

8 0

4 years ago

A mechanic sells a brand of automobile tire that has a life expectancy that is normally distributed, with a mean life of 27 com

Harrizon [31]

Answer:

Tires that wear out by approximately 24307.8 miles will be replaces free of charge.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 27,000 miles

Standard Deviation, σ = 2100 miles

We are given that the distribution of life expectancy is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

We have to find the value of x such that the probability is 0.10

$P( X < x) = P( z < \displaystyle\frac{x - 27000}{2100})=0.10$

Calculation the value from standard normal z table, we have,

$\displaystyle\frac{x - 27000}{2100} = -1.282\\\\x = 24307.8$

Tires that wear out by approximately 24307.8 miles will be replaces free of charge.

4 0

4 years ago

If it is 375 miles form Los Angeles To San Francisco and on a map the scale is 2cm=10miles how far apart are they on the map

ZanzabumX [31]

187.5 miles left to go :’)

3 0

3 years ago

Read 2 more answers

Consider the three roads, where the length of Road 1 is 320 feet. What is the approximate length of Road 3? A. 118.7 feet B. 232

Scorpion4ik [409]

Answer:

Step-by-step explanation:

Use law of sines

320ft/sin(17) = x ft/sin(128)

x = 862.5

Find 17 degrees using 180 - 128 - 35 = 17

5 0

4 years ago

If mUTV < mUTS < mSTR, which statement is true? VU < US < SR by the hinge theorem. VU = US = SR by the hinge theorem

Ymorist [56]

Answer:

True statement is VU < US < SR by the hinge theorem.

Step-by-step explanation:

It is given that ∠UTV < ∠UTS < ∠STR.

According to Hinge theorem "if 2 sides of two triangles are congruent and the included angle of the 1st triangle is larger than the included angle of the 2nd triangle, then the third side of the 1st triangle is longer than the third side of the 2nd triangle."

since ∠UTV < ∠UTS < ∠STR.

So, by hinge theorem sides opposite to these angle are also is this inequality order,

So, according to fig. and by using hinge theorem, we can say that

VU < US < SR.

8 0

3 years ago

Read 2 more answers