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2 years ago

This is due tomorrow pls help me fast

Mathematics

1 answer:

In-s [12.5K]2 years ago

6 0

Answer:

-6

Step-by-step explanation:

When x is -7, you just find the coordinates that fall on the line, so the coordinates are (-7,-6)

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What's 763.53 × 63.97 = ?

Klio2033 [76]

Answer: 48843.0141

Step-by-step explanation:

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3 years ago

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The cross-sectional areas of a right pyramid and a right cylinder are congruent. The pyramid has a height of five units, and a r

Mazyrski [523]

Answer:

the volume of the right cylinder is 1.8 times the volume of the pyramid

Step-by-step explanation:

The volume of a pyramid is

$V = \dfrac{1}{3} \times B\times H$

where the height of the pyramid is 5

$V = \dfrac{1}{3} \times B\times 5$

$V = \dfrac{5}{3} B \ units ^3$

On the other hand, the volume of a right cylinder is

V = BH

where the height of the right cylinder = 3 units

V = 3 B units³

Since we know that the cross-sectional areas are congruent, comparing the two-volume, we have the ratio of their volumes to be:

$\dfrac{V_p}{V_c}= \dfrac{\dfrac{5}{3}B}{3B}$

$\dfrac{V_p}{V_c}= \dfrac{5}{9}$

$9 V_p = 5 V_c$

$V_c = 1.8 \ V_p$

Hence, the volume of the right cylinder is 1.8 times the volume of the pyramid

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2 years ago

Tell whether the angles are complementary or supplementary. Then find the value of x.

oksano4ka [1.4K]

Answer:

1) A

2) x = 60

Step-by-step explanation:

1) A cuz complementary these two angles add up to be 90 degrees

2) 2x - 30 = 90

2x = 120

x = 60

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2 years ago

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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

Suppose Josh Borrows $2000 at an interest rate of 3% compounded each year. Assume that no payments are made on the loan.

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Answer:

a)2975

b)3450

Step-by-step explanation:

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1 year ago