3 years ago

Select the correct solution set.

Mathematics

2 answers:

aleksandrvk [35]3 years ago

5 0

It’s x _< -8

Because ur diving it by negative;))

Ksju [112]3 years ago

4 0

Answer:

{x | x ≤ -8}

Step-by-step explanation:

-7x ≥ 56

Divide each side by -7, remembering to flip the inequality since we are dividing by a negative

-7x/-7 ≤ 56/-7

x ≤ -8

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a first number plus twice a second number is 4. twice the first number plus the second number totals 26. find the numbers

blagie [28]

Answer:

a = 16

b = -6

Step-by-step explanation:

a + 2b = 4

2a + b = 26

2a + 4b = 8

2a + b = 26

3b = -18

b = -6

a + 2(-6) = 4

a - 12 = 4

a = 16

3 0

2 years ago

Suppose a baby food company has determined that its total revenue R for its food is given by R = − x 3 + 39 x 2 + 945 x where R

Paraphin [41]

Answer:

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Step-by-step explanation:

Total revenue is:

$R = -x^3+39x^2+945x$

The maximum revenue is attained at the production level for which the derivate of the revenue function is zero:

$R = -x^3+39x^2+945x\\R'=0=-3x^2+78x+945\\x=\frac{-b\pm\sqrt{78^2-(4*(-3)*945)} }{-6}\\x_1=35\\x_2=-9$

Since production cannot be negative, revenue will be at a maximum when x = 35, or when the production level is 35,000 units.

4 0

3 years ago

If l || m, classify the marked angle pair and give their relationship, then solve for X.

pickupchik [31]

Alternate exterior angles(AEA).
Given their relationship the angles are congruent.
8x-71=5x+7
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6 0

2 years ago

Which correctly gives the location of the point (–14, 3)? A. Quadrant I B. Quadrant II C. Quadrant III D. Quadrant IV

dedylja [7]

The answer is B. Quadrant II

Just remember this concept instead.

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3 years ago

The ratio 15:3 in its simplest

Gnoma [55]

Answer:

5:1

Step-by-step explanation:

Divide each by 3.

5 0

3 years ago

Read 2 more answers