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3 years ago

URGENT-HELP ME PLEASE!! (attached problem)

Mathematics

2 answers:

netineya [11]3 years ago

8 0

Answer:

it's ≤40

Step-by-step explanation:

NikAS [45]3 years ago

5 0

Answer:

x/-8 $\geq$ -5

Step-by-step explanation:

Step 1: Multiply -8 on both sides. --> -8 * $\frac{x}{-8\\}$ $\geq$ -5 *-8

Step 2: Cross out the -8's on the left side leaving x by it self. Solve.

--> x $\leq$ 40

P.S.: Remember to flip signs because you multiplied by a negative on the x.

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Determine the ordered pair that satisfies the equation, -5x + 3y = 7.

sammy [17]

Answer:

C) (7 , 14)

Step-by-step explanation:

Substitute each ordered pair into the equation

-5x + 3y = 7.

A) (2 , -1)

-5(2) +3(1) = -10 +3 = -7 this does not equal 7 so not true

B) (-5 , 3)

-5(-5) +3(3) = 25 +9 = 34 this does not equal 7 so not true

C) (7 , 14)

-5(7) + 3(14) = -35 + 42 = 7 this equals 7 so true

D) (-2 ,−135)

-5(-2) + 3(-135) =10+405 =415 this does not equal 7 so not true

3 0

4 years ago

1 x(x-2) how I do this

velikii [3]

Answer:

are u mulitplying or what?

Step-by-step explanation:

5 0

3 years ago

Find the center of the circle that you can circumscribe about DABC.

Vlada [557]

The center of the circle that circumscribe about DABC is $(h,k) = (1, 5)$ .

A circle can be modelled after a expression of the form:

$A\cdot x + B\cdot y + C =-x^{2}-y^{2}$ (1)

We can determine all coefficients by knowing three distinct points on plane.

If we know that $(x_{1}, y_{1}) = (2, 8)$ , $(x_{2}, y_{2}) = (0, 8)$ and $(x_{3}, y_{3}) = (2, 2)$ , then the solution of the system of linear equations is:

$2\cdot A + 8\cdot B + C = -68$ (2)

$8\cdot B + C = -64$ (3)

$2\cdot A + 2\cdot B + C = -8$ (4)

$A = -2, B = -10, C = 16$

Now we proceed to complete squares and factor each resulting perfect square trinomial in order to determine the coordinates of the center of the circle:

$x^{2}+y^{2}-2\cdot x -10\cdot y +16 = 0$

$(x^{2}-2\cdot x +1)-1+(y^{2}-10\cdot y +25)-25 +16 = 0$

$(x-1)^{2}+(y-5)^{2}= 10$

The center of the circle that circumscribe about DABC is $(h,k) = (1, 5)$ .

To learn more on circles, we kindly invite to check this verified question: brainly.com/question/11833983

5 0

3 years ago

Name other places where you would see slope in the real world.

Brilliant_brown [7]

Mountains would be a good example of this. While they do not have a straight rise, you can just take the average.

Ladders are another example. You can calculate the slope of a ladder to make sure it wont fall.

I hope this helped you understand about the uses of slopes in the real world! If this is confusing, don't be hesitant to drop a DM.

5 0

4 years ago

What is the value of this expression? 1/100 + 6/10 A.7/10 B.7/100 C.16/100 D.61/100

salantis [7]

The answer to the problem is D.61/100
Hope this helps.

4 0

3 years ago

Read 2 more answers