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3 years ago

. Find the distance between (−4,−1) and (−2,−3).

Mathematics

1 answer:

algol [13]3 years ago

6 0

Answer:

2.83 units

(results are in decimal form, rounded to the nearest 100th)

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A right triangle includes one algae that measures 14º. what is the measure of the third angle

Sedbober [7]

Answer: B. 76

Step-by-step explanation: A right triangle is 180 degrees. It has an angle of 90 since it is a right triangle. 90 + 14 = 104. 180 - 104 = 76

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2 years ago

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What is the full number of 2.2300745e56?

xz_007 [3.2K]

Answer:

2 23000745000000000000000000000000000000000000000000000000 ( if I counted correctly !)

Step-by-step explanation:

It is really big ....move the decimal to the right 56 places

the e means exponent 2.2300745 x 10^56

3 0

2 years ago

Please help I need the answer ASAP!!!!!

zloy xaker [14]

h(t) = 80t - 16t²

Ground level is h(0) = 0

We want to solve for t:

h(t)= 0

80t - 16t² = 0

16t(5 - t) = 0

t = 0 or t = 5

Answer: 5 seconds

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3 years ago

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Gravel is being dumped from a conveyor belt at a rate of 20 ft3/min, and its coarseness is such that it forms a pile in the shap

11Alexandr11 [23.1K]

Answer:

0.25 feet per minute

Step-by-step explanation:

Gravel is being dumped from a conveyor belt at a rate of 20 ft3/min. Since we are told that the shape formed is a cone, the rate of change of the volume of the cone.

$\dfrac{dV}{dt}=20$ ft^3/min$

$\text{Volume of a cone}=\dfrac{1}{3}\pi r^2 h$

Since base diameter = Height of the Cone

Radius of the Cone = h/2

Therefore,

$\text{Volume of the cone}=\dfrac{\pi h}{3} (\dfrac{h}{2}) ^2 \\V=\dfrac{\pi h^3}{12}$

$\text{Rate of Change of the Volume}, \dfrac{dV}{dt}=\dfrac{3\pi h^2}{12}\dfrac{dh}{dt}$

Therefore: $\dfrac{3\pi h^2}{12}\dfrac{dh}{dt}=20$

We want to determine how fast is the height of the pile is increasing when the pile is 10 feet high.

$h=10$ feet$\\\\\dfrac{3\pi *10^2}{12}\dfrac{dh}{dt}=20\\25\pi \dfrac{dh}{dt}=20\\ \dfrac{dh}{dt}= \dfrac{20}{25\pi}\\ \dfrac{dh}{dt}=0.25$ feet per minute (to two decimal places.)$

When the pile is 10 feet high, the height of the pile is increasing at a rate of 0.25 feet per minute

5 0

3 years ago

Moreira is comparing prices at two video game rental companies rebound game rental charges a base fee of four dollars and an add

uysha [10]

Answer:

Number of days = 3

Step-by-step explanation:

Let

x = number of days

Rebound game rental = 4 + 2x

Girl right game center = 1 + 3x

Equate both rental companies to find x

Rebound game rental = Girl right game center

4 + 2x = 1 + 3x

Collect like terms

4 - 1 = 3x - 2x

3 = x

x = 3 days

Number of days = 3

5 0

3 years ago