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3 years ago

- Area and Volume

Mathematics

1 answer:

nadya68 [22]3 years ago

6 0

Answer:

1. Area=225 m2, 2. Carpet required is 225m2. 3. Cost= Rs 18000

Step-by-step explanation:

1. Area=l*l=15*15=225 m2

2. Carpet has to be 225m2 in order to cover the floor

3. Cost= 225*80=18000

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Find ST. Round to the nearest tenth.<br> HELP PLEASEEEE SHOW WORK!!

vladimir1956 [14]

Answer:

Step-by-step explanation:

sin 44° = $\frac{63}{ST}$

ST = $\frac{63}{sin44}$

ST ≈ 90.7

7 0

2 years ago

Katie,Elizabeth,and Siobhan volunteer at the hospital. In a week,Katie volunteers 3 hours more than Elizabeth does and Siobhan v

Tema [17]

Let's say that x represents hours that Elizabeth volunteers over 1 week. Katie volunteers x+3 and Siobhan x-1 hours per week. The equation that arises from condition in text is:
3*(x+3) = 3*(x + x-1)
x+3 = 2*x - 1
2*x - x= 3+1
x=4.

Elizabeth volunteers    7 hours
Katie volunteers    4 hours
Siobhan volunteers   3 hours

7 0

3 years ago

Read 2 more answers

Find the missing side lengths. Leave your answers as radicals in simplest form

tino4ka555 [31]

We have the triangle 30° - 60° - 90°.

The lenght of the sides are in proportion: $1:2:\sqrt3\to a:2a:a\sqrt3$

$a=y\\2a=x\\a\sqrt3=5\\\\a\sqrt3=5\qquad\text{multiply both sides by}\ \sqrt3\\\\3a=5\sqrt3\qquad\text{divide both sides by 3}\\\\a=\dfrac{5\sqrt3}{3}\\\\2a=2\cdot\dfrac{5\sqrt3}{3}=\dfrac{10\sqrt3}{3}\\\\Answer:\ x=\dfrac{10\sqrt3}{3},\ y=\dfrac{5\sqrt3}{3}$

6 0

3 years ago

{(4z-7,z-4,z) |z is any real number} z=-5

weeeeeb [17]

The set when z = -5 is {-27, -9, -5}

<h3>How to determine the set elements?</h3>

The set is given as:

{(4z-7,z-4,z) |z is any real number}

When z=-5, we have:

4z - 7 = 4(-5) - 7 = -27

z - 4 = -5 - 4 = -9

z = -5

So, we have:

{(4z-7,z-4,z) |z is any real number} ⇒ {-27, -9, -5}

Hence, the set when z = -5 is {-27, -9, -5}