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3 years ago

Help me pleaseeeee:(((

Mathematics

2 answers:

gavmur [86]3 years ago

5 0

Answer:

1.25

Step-by-step explanation:

if you paid 7.50 for 6 feet of rope we can figure out how much each foot of rope is by example 750 divided by 6 which equals 1.25 .

MrRissso [65]3 years ago

3 0

Answer:

$62.50

Step-by-step explanation:

Proportions:

$7.50 ⇔ 6ft

$R ⇔ 50ft

R = 7.5*50/6

R = $62.5

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Prove the identity of tan(pi - x) = - tan x

liq [111]

Two ways:

Step-by-step explanation:

1. First way. Using the trig unit circle.

tan (pi - x) = - tan x

2. Second way. Apply the identity:

tan(a-b)=tan a- tan b/ 1 - tan a×tan b

tan (π - x)= tan π - tanx/1 - tan(π)×tanx

Since tan (pi) = 0, therefor:

tan(π−x)=−tanx

8 0

3 years ago

In order to store paint, a factory has purchased a cylindrical tank that is 6 feet across and 9 feet deep. What is the maximum n

SOVA2 [1]

Answer:

254 cubic feet.

Step-by-step explanation:

It is given that the a cylindrical tank is 6 feet across and 9 feet deep. It means

Diameter of cylinder = 6 feet

Radius of the cylinder = 6/2 = 3 feet

Height of the cylinder = 9 feet

The volume of a cylinder is

$V=\pi r^2h$

where, r is radius and h is height of the cylinder.

Substitute r=3 and h=9 in the above formula.

$V=\pi (3)^2(9)$

$V=81\pi$

$V=254.46900$

We need to find the maximum number of cubic feet. So approx the value to a whole number.

$V\approx 254$

Therefore, the maximum number of cubic feet of paint the tank will hold is 254 cubic feet.

8 0

3 years ago

PLS HELP TELL WHETHER X AND Y SHOW DIRECT VARIATION!!!

jarptica [38.1K]

Answer:

Try using this calculator

Step-by-step explanation:

https://www.mathpapa.com/algebra-calculator.html

4 0

3 years ago

Sam volunteers at an animal shelter. He created a line plot to show the weights in pounds of the kittens at the shelter.

Anastaziya [24]

Answer:

The total weight is 5kg

Step-by-step explanation:

Given

See attachment for box plot

Required

Determine the total weight of the kitten

First, we represent the plot in the following table where the number of dots represent the frequency.

So, we have:

$Weight \to Frequency$

$\frac{1}{2} \to 3$

$1 \to 2$

$1\frac{1}{2} \to 1$

$2 \to 0$

$2\frac{1}{2} \to 0$

Multiply the weight by the frequency, then add up the result

So, we have:

$Total = \frac{1}{2} * 3 + 1 * 2 + 1\frac{1}{2} * 1 + 2 * 0 + 2\frac{1}{2} * 0$

$Total = 1\frac{1}{2} + 2 + 1\frac{1}{2} + 0 + 0$

$Total = 1\frac{1}{2} + 2 + 1\frac{1}{2}$

Express as improper fraction

$Total = \frac{3}{2} + 2 + \frac{3}{2}$

Take LCM

$Total = \frac{3+4+3}{2}$

$Total = \frac{10}{2}$

$Total = 5kg$

8 0

3 years ago

Combinatia pet store has 88 puppies, including 33 poodles, 22 terriers, and 33 retrievers. if rebecka selects one puppy at r

lbvjy [14]

Total dogs 88
Total poodle = 33

P(Poodle, then Poodle) = (33/88)(33/88) = 9/64

Answer: 9/64

7 0

4 years ago