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bonufazy [111]
3 years ago
5

Solve the inequality. Enter the answer as an inequality that shows the value of the variable; for example f > 7, or 6 < w.

Where necessary, use <= to write and use >= to write . 25 + x < -40
Mathematics
1 answer:
Vedmedyk [2.9K]3 years ago
4 0
Subtract 25.
  25 - 25 + x < -40 - 25
Simplify
  x < -65

_____
An inequality is solved exactly the same way an equation is solved, with one exception.‡ Multiplying or dividing by a negative number reverses the sense of the inequality:
  2 > 1
  -2 < -1 . . . . multiplied by -1


___
‡ The exception can be generalized to the use of any function that reverses the ordering of its arguments. In Algebra, about the only function we use that has negative slope is the cosine function (and its inverse). You rarely see these used in inequalities.
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I need help on 6, 7, and 8. Please help me fast!
Len [333]

Answer:

7. 130 + 150 = 280

360 - 280 = 80 degrees

Step-by-step explanation:

4 0
3 years ago
!!!!NEED HELP ASAP!!!! NO LINKS OR REPORT
Pie

Hi there!

\large\boxed{2, -9}

We can create an equation for the line PR using the given coordinates. Use the following formula for the slope:

m = \frac{y_2-y_1}{x_2-x_1}

Plug in the coordinates for P and R:

m = \frac{-5-(-1)}{-1-(-4)} = -\frac{4}{3}

Find the equation by using point-slope form:

y - y1 = m(x - x1)

Plug in a coordinate and the slope:

y - (-5) = -4/3(x - ( - 1))

Simplify:

y + 5 = -4/3(x + 1)

To find the y-coordinate if x = 2, plug in the x value:

y + 5 = -4/3(2 + 1)

y + 5 = -4/3(3)

y + 5 = -4

y = -9

Thus, the coordinate is (2, -9)

6 0
3 years ago
Which relation is a function?
xz_007 [3.2K]

Answer:

I see this

"Which relation is a function?

A {(-3,4),(-3,8),(6,8)}

B {(6,4),(-3,8),(6,8)}

C {(-3,4),(3,-8),(3,8)}

D {(-3,4),(3,5),(-3,8)}"

So the answer is none of these.

Please make sure you have the correct problem.

Step-by-step explanation:

A set of points is a function if you have all your x's are different.  That is, all the x's must be distinct. There can be no value of x that appears more than once.

If you look at choice A, this is not a function because the first two points share the same x, which is -3.

Choice B is not a function because the first and last point share the same x, which is 6.

Choice C is not a function because the last two points share the same x, which is 3.

Choice D is not a function because the first and last choice share the same x, which is -3.

None of your choices show a function.

If you don't have that choice you might want to verify you written the problem correctly.

This is what I see:

"Which relation is a function?

A {(-3,4),(-3,8),(6,8)}

B {(6,4),(-3,8),(6,8)}

C {(-3,4),(3,-8),(3,8)}

D {(-3,4),(3,5),(-3,8)}"

7 0
3 years ago
Start with the number 5,835.87 make 3 more in the tens place
Vinil7 [7]

So the tens place for this number would be the 3 for "30." It wants 3 more in the tens place, so I think it wants you to add 3 tens to make it 60, or a grand total 5,865.87. It's worded a little funny, so if you think it's something else please tell!

4 0
3 years ago
Read 2 more answers
Explain how you could use either of two operation to solve exercise 10.
wel
You want to know the factor by which 3 2/3 is multiplied to get 7 1/3.

1. You can estimate that it is 2 from 7/3 ≈ 2, then check by multiplication to see if that is right.
.. 2*(3 2/3) = 6 4/3 = 7 1/3 . . . . 2 is the correct factor.

2. You can divide 7 1/3 by 3 2/3 to see what the factor is.
.. (7 1/3)/(3 2/3) = (22/3)/(11/3) = 22/11 = 2 . . . . 2 is the factor Earl used.

3. You could see how many times you can subtract 3 2/3 from 7 1/3.
.. 7 1/3 -3 2/3 = (7 -3) +(1/3 -2/3) = 4 -1/3 = 3 2/3 . . . . . subtracting once gives 3 2/3
.. 3 2/3 -3 2/3 = 0 . . . . . . subtracting twice gives 0, so the factor is 2.

4. You could add 3 2/3 to see how many times it takes to get 7 1/3.
.. 3 2/3 +3 2/3 = (3 +3) +(2/3 +2/3) = 6 +4/3 = 7 1/3
We only need to add two values of 3 2/3 to get 7 1/3, so the factor is 2.

___
We have shown methods using multiplication, division, subtraction, addition. Take your pick.
6 0
3 years ago
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