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3 years ago

A rectangular bathroom mirror is 4

Mathematics

2 answers:

Phantasy [73]3 years ago

7 0

Answer:

Step-by-step explanation:

area = width x height

area = 7 x 4

area = 28 square feet

slavikrds [6]3 years ago

4 0

Given -

A rectangular bathroom mirror is 4 feet tall and 7 feet wide.

ie, length of the mirror, L = 4 feet and breadth of the mirror, B = 7 feet .

To find -

the area of the mirror

Solution -

As we know to find the area of rectangle we use the formula, Area = L × B

Hence, we will be doing the same.

Area = 4 × 7

Area = 28 square feet

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In an isosceles trapezoid the length of a diagonal is 25 cm and the length of an altitude is 15 cm. Find the area of the trapezo

andreev551 [17]

Answer:

The area of the trapezoid is $525\ cm^{2}$

Step-by-step explanation:

we know that

The area of a isosceles trapezoid is equal to the area of two isosceles right triangles plus the area of a rectangle

step 1

<em>Find the area of the isosceles right triangle</em>

Remember that

In a isosceles right triangle the height is equal to the base of the triangle

we have

$h=15\ cm$

$b=15\ cm$

The area is equal to

$A=\frac{1}{2}(b)(h)$

substitute the values

$A=\frac{1}{2}(15)(15)=112.5\ cm^{2}$

step 2

Find the area of the rectangle

The area of the rectangle is equal to

$A=LW$

we have

$W=15\ cm$ -----> is the height of the trapezoid

$d=25\ cm$ -----> the diagonal of the rectangle

Applying the Pythagoras Theorem

$25^{2}=L^{2}+15^{2}\\L^{2}=25^{2}-15^{2} \\ L^{2} =400\\L=20\ cm$

The area of the rectangle is

$A=(20)(15)=300\ cm^{2}$

step 3

Find the area of the trapezoid

$A=2(112.5\ cm^{2})+300\ cm^{2}=525\ cm^{2}$

6 0

4 years ago

Read 2 more answers

What is the mathematical answer for this matematicas question 5 1/5÷ 1/4

givi [52]

Answer:

Step-by-step explanation:

Convert mixed fraction to improper fraction. Then use KCF method

Keep the first fraction.

Change the division operation to multiplication.

Flip the second fraction

$5\frac{1}{5}=\frac{26}{5}$

$5\frac{1}{5}$ ÷ $\frac{1}{4}$ = $\frac{26}{5}$ ÷ $\frac{1}{4}$

$= \frac{26}{5}*\frac{4}{1}\\\\= \frac{26*4}{5}\\\\=\frac{104}{5}\\\\=20\frac{4}{5}$

8 0

3 years ago

Read 2 more answers

PLEASE HELP it is due tonight

Lunna [17]

Answer:

The answer is $21,887

Step-by-step explanation:

7 • 6.5% = 45.5%

1.455 • 15000 = 21887

$21,887

6 0

3 years ago

1st Step: 3 - 4x - 7 = -24<br> 2nd Step: 3- 7 - 4x = -24<br> What property justifies the 2nd step

gizmo_the_mogwai [7]

Answer:

the subtraction

Step-by-step explanation:

3 0

3 years ago

1. During October, William Korth worked 160 regular time hours at $9.28 an hour and 18 overtime hours at time-

Vanyuwa [196]

Answer:

Kindly check explanation

Step-by-step explanation:

1.) regular time hours = 160

Overtime hours = 18

Gross pay = (9.28 * 160) + (1.5 * 9.28 * 18) = $1735.36

2.) Last year, Ida Zolen worked 2,000 hours at regular time pay of $8.20 an hour. She also worked 75 hours over time at double his regular rate. What was Ida’s gross pay last year?

Gross pay:

(2000 * 8.20) + (2 * 8.20 * 75) = $17,630

3. Alan Kirbaum works on an 8-hour day basis and is paid $8 an hour for regular time work and time-and-a half for overtime work. Last week he worked these hours: Monday:9 ; Tuesday:6 ; Wednesday:11 ; Thursday:8 ; Friday:9.

A) How many regular hours did he work?

Regular hours = (8 + 6 + 8 + 8 + 8).= 38 hours

B) How many overtime?

Overtime = (1 + 3 + 1). = 5 hours

C) What is his overtime rate?

2.5 * $8 = $20

D) What is his overtime pay?

$20 * 5 = $100

E) Find Alan’s gross pay.

(38 * $8) + $100 = $404

4. Stephen Woll’s regular pay is $20 an hour. He is paid time and a half for overtime work beyond 40 hours a week. He

worked: Monday:11 ; Tuesday:10 ; Wednesday:10 ; Friday:12. Find Stephen

Total Hour = (11 + 10 + 10 + 12) = 43 hours

8 0

3 years ago