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2 years ago

3. Calculate the lateral and surface areas of a cone

Mathematics

1 answer:

BARSIC [14]2 years ago

7 0

Answer:180 it’s the answer :P

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When csc(Theta)sin(Theta) is simplified, what is the result?

Arlecino [84]

Answer:

csc θ ⋅ sin θ = 1

Explanation:

csc θ = 1 /sin θ

csc θ ⋅ sin θ

= 1 /sin θ ⋅ sin θ

= sin θ/sin θ

= 1

7 0

2 years ago

Randall wants to mix 50 lb of nuts worth $2 per lb with some nuts worth $7 per lb to make a mixture worth $6 per lb. How many po

defon

A = nuts of $2/lb

B = nuts of $7/lb

let's say we'll mix "x" lbs of B to get a mixture with A of "y" lbs, therefore

$\bf \begin{array}{lcccl} &\stackrel{lbs}{quantity}&\stackrel{\textit{cost}}{per~lb}&\stackrel{\textit{cost}}{total}\\ \cline{2-4}&\\ A~ nuts&50&2&100\\ B~nuts&x&7&7x\\ \cline{2-4}&\\ mixture&y&6&6y \end{array} \\\\\\ \begin{cases} 50+x=\boxed{y}\\ 100+7x=6y \end{cases}\qquad \qquad \implies 100+7x=6\left( \boxed{50+x} \right) \\\\\\ 100+7x=300+6x\implies \blacktriangleright x=200 \blacktriangleleft$

3 0

3 years ago

Casandra is training for a 10 mile race.On the first day of training she runs 4 miles, each day after that sge adds on 0.5 mile.

AnnyKZ [126]

Answer:

8 days

Step-by-step explanation:

3 0

3 years ago

An astronaut who weighs 85 kilograms on earth weighs 14.2 kilograms on the moon. How much would a person weigh on the moon if th

STatiana [176]

Answer:

Weight on the moon=x=15.87 kilograms

Step-by-step explanation:

This can be expressed as;

Weight on earth=Constant×Weight on moon

where;

Weight on moon=14.2 kilograms

Constant=k

Weight on Earth=85 kilograms

Replacing in the expression above;

85=14.2×k

k=(85/14.2)=5.986

If the person weighs 95 kilograms on Earth;

Weight on the earth=Constant×Weight on moon

where;

Weight on the moon=x

Constant=5.986

Weight on the earth=95 kilograms

Replacing;

95=5.986×x

x=95/5.986=15.87

Weight on the moon=x=15.87 kilograms

4 0

2 years ago

On a coordinate plane, a parabola opens down. It has an x-intercept at (negative 5, 0), a vertex at (negative 1, 16), a y-interc

tigry1 [53]

Answer:

I have no idea sorry maybe ome body

Step-by-step explanation:

but first u divide and that's all i know

4 1

2 years ago

Read 2 more answers