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2 years ago

A room has a rectangular floor 5.5 m long and 4.5 m wide. The room is 2.5 m in height.

Mathematics

1 answer:

podryga [215]2 years ago

3 0

Answer:

Length=8 m,Breadth=6 m,Height=3 m

We know,

LSA=2(l+b)×h

LSA=2×14×3=84 m

Therefore, cost of painting = 84×60=Rs.5040.

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Write an equation for a sine curve that has the given amplitude and period, and which passes through the given point.

Delicious77 [7]

ANSWER

$y = 5\sin( \frac{\pi}{3} x - \frac{2\pi}{3} )$

EXPLANATION

Let the equation of the sine curve be of the form;

$y = a \sin(bx + c)$

where a=5 is the amplitude and period,

$\frac{2\pi}{b} = 6$

This implies that

$b = \frac{2\pi}{6}$

$b = \frac{\pi}{3}$

We substitute the values we got so far into our equation to obtain;

$y = 5\sin( \frac{\pi}{3} x + c)$

When we substitute (2,0) we obtain;

$0= 5\sin( \frac{2\pi}{3} + c)$

Solve for c.

$\sin( \frac{2\pi}{3} + c) = 0$

$\frac{2\pi}{3} + c = \sin^{ - 1} (0)$

$\frac{2\pi}{3} + c = 0$

$c = - \frac{2\pi}{3}$

Hence our equation becomes

$y = 5\sin( \frac{\pi}{3} x - \frac{2\pi}{3} )$

The correct choice is D.

4 0

3 years ago

Step by step 6x + 3y = 12

marissa [1.9K]

Answer:

x=4-y/2

Step-by-step explanation:

subtract 3y from both sides

simplify

divide both sides by 6

3 0

3 years ago

Read 2 more answers

Kevin took his car to Dwain's Automotive to have the engine replaced. Kevin was

tamaranim1 [39]

Answer:

Step-by-step explanation:

$2400 in labor

4 0

3 years ago

A turkey costs $1.05 per pound. There are going to be fifteen people at Thanksgiving dinner. Plan for each person to eat two, 3/

valina [46]

Answer:

<em>I will need to buy 22.5 pounds of turkey and pay $23.63</em>

Step-by-step explanation:

<u>Proportions</u>

Each person is planned to eat 2 x 3/8 pound servings of turkey for thanksgiving dinner. This means each person will eat

$2\cdot\frac{3}{4}=\frac{3}{2}$

pounds of turkey.

There are going to be 15 people at the dinner, thus the total turkey needed is:

$15\cdot\frac{3}{2}=22.5~pounds$

The turkey costs $1.05 per pound, thus the total cost is

22.5*$1.05 = $23.63

I will need to buy 22.5 pounds of turkey and pay $23.63

6 0

3 years ago

Five less than a number is at least -28 written as an inequality.

andrew-mc [135]

I believe it would be (if x was the number):
x - 5 ≥ -28. Hope this helps!

5 0

3 years ago