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3 years ago

What does -20x-40 equal

Mathematics

1 answer:

kicyunya [14]3 years ago

3 0

-20x-40 = 800
Hope it helps

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4x=4+4 Find the value of x

Airida [17]

Answer:

$\sf\longmapsto \: x =2$

Step-by-step explanation:

$\sf\longmapsto \: 4x = 8$

$\sf\longmapsto \: x = \frac{8}{4}$

$\sf\longmapsto \: x = 2$

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2 years ago

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Please help me!!! What is the sign of (-2)^4 x (-3)^7

julsineya [31]

Answer:

$( - 2) ^{4} \times ( - 3) ^{7} \\ = 16 \times 27 \\ = positive$

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3 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:

35,000 units

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.

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3 years ago

The chorus teacher plans to arrange the students in equal rows. Only the girls or boys will be in each row. What is the greatest

emmainna [20.7K]

Answer:

Step-by-step explanation:

68+48=116

116÷16=7.24 (wrong)

116÷12=9.7 (wrong)

116÷4=29 (lowest even)

116÷2=58 (highest even)

If I'm wrong, let me know

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2 years ago

Please help!!!! i am despite, i will mark brainlyest

Sedaia [141]

Answer:

x=12

10x = 120

5x = 60

Step-by-step explanation:

paralellograms will become 360 degrees

so 2(5x) +2(10x)= 360

Simplify:

10x + 20x = 360

= 30x

divide both sides by 30 and isolate

30x = 360

30 30

x=12

multiply 12 by 10x and 5x

10x = 120

5x = 60

7 0

2 years ago