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3 years ago

Which point is not a solution to the system of inequalities? Thank you:)))

Mathematics

1 answer:

belka [17]3 years ago

4 0

Answer:

(4, -1) is not a solution to the system

Step-by-step explanation:

The first point: (4,-1) doesn't satisfy the first inequality:

$y>x-5\\(-1) > 4-5\\-1>-1$

since we get to an absurd, because -1 cannot be strictly smaller than -1!

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2d(3*6)=48y when y=1/4

vaieri [72.5K]

Answer: d = 1/3

Step-by-step explanation: 48y = 48/4 = 12. So, 2d(18) is equal to 12. 12/18 is 2/3 so 2d has to equal 2/3. That means d = 1/3.

8 0

2 years ago

2r2 + 3s3 − r2 + 4t2 − r2 if r = −2, s = −3, and t = 5.

Elza [17]

First, simplify the expression $2r^2 + 3s^3 - r^2 + 4t^2 - r^2.$ Here you have three terms with $r^2,$ group them in the following way:

$2r^2 + 3s^3 - r^2 + 4t^2 - r^2=2r^2-r^2-r^2+3s^3+4t^2=(2r^2-r^2-r^2)+3s^3+4t^2=$

$=r^2(2-1-1)+3s^3+4t^2=3s^3+4t^2.$

Then substitute s=-3 and t=5:

$3s^3+4t^2=3\cdot (-3)^3+4\cdot 5^2=3\cdot (-27)+4\cdot 25=-81+100=19.$

Answer: 19.

3 0

3 years ago

Read 2 more answers

A suspicious monkey offers you and your classmates fruit to eat. As you consider eating the fruit he tells you that 60 out of 12

Georgia [21]

Answer

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Step-by-step explanation:

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3 0

2 years ago

How many different ways can you solve a quadratic equation ? List them.

Semmy [17]

There are three basic methods for solving quadratic equations: factoring, using the quadratic formula, and completing the square.

6 0

3 years ago

Write a linear equation in the form y=mx+b given the following two points.

IRINA_888 [86]

Answer:

D. y=2x-2

Step-by-step explanation:

once you plot the points, you see that the y-intercept is -2 and the rise over run is 6/3. you simplify 6/3 by dividing and get 2x. So y=2x-2.

Hope this helped!

7 0

2 years ago