All categories

3 years ago

A rectangular solid has sides of 7 cm + 9 cm + 11 cm what is its surface area

Mathematics

2 answers:

alina1380 [7]3 years ago

6 0

Your answer would be: 693.

Explanation:

When finding the area in a problem use L×W×H.

That being said, you now have to multiply the L×W×H (7x9x11)

7 × 9 × 11 = 693

So the answer would be 693 because, if you are finding an area you use L×W×H to find your area.

trasher [3.6K]3 years ago

5 0

Answer:

478

Step-by-step explanation:

Surface Area=2(ab+ac+bc)

SA=2((7*9)+(7*11)+(9*11))

You might be interested in

Aaron run 6 miles each day for three days. How many miles does she run it all? Write an addition and a multiplication sentence t

artcher [175]

6*3=18 miles in total

8 0

3 years ago

Please someone explain how to solve this piecewise function!!!! Im super confused

Xelga [282]

Answer:

From top to bottom:

$0, 1, 2, -8, -8$

Step-by-step explanation:

We are given the piecewise function:

$g(x) = \left\{ \begin{array}{ll} 0.5x+1 & \text{if } x \leq 2 \\ -8 & \text{if } x > 2 \end{array} \right.$

Row 1:

We want to find g(-2).

Since -2 is less than (or equal to) 2, we will use the first equation. Thus:

$g(-2)=0.5(-2)+1=-1+1=0$

Row 2:

Likewise, 0 is less than or equal to 2. We will continue to use the first equation:

$g(0)=0.5(0)+1=1$

Row 3:

2 is not less than 2 but it is equal to 2. So we will continue to use the first equation:

$g(2)=0.5(2)+1=1+1=2$

Row 4 and 5:

Both 4 and 6 are greater than 2. Thus, we will use the second equation. Therefore:

$g(4)=-8\text{ and } g(6)=-8$

7 0

3 years ago

(a 3 - 2a + 5) - (4a 3 - 5a 2 + a - 2)

Andreas93 [3]

Answer:

- 3a³ + 5a² - 3a + 7

Step-by-step explanation:

Given

(a³ - 2a + 5) - (4a³ - 5a² + a - 2)

Distribute both parenthesis noting the second is distributed by - 1

= a³ - 2a + 5 - 4a³ + 5a² - a + 2 ← collect like terms

= (a³ - 4a³ ) + 5a² + (- 2a - a) + (5 + 2)

= - 3a³ + 5a² - 3a + 7

3 0

2 years ago

If a diameter of a circular chapati is 14 cm what is it's area

sashaice [31]

Answer:

diameter=14

radius =14/2=7

area =πr²

22/7×7²
154cm²

hope it helps

<h3>stay safe healthy and happy.</h3>

3 0

2 years ago

Read 2 more answers

Of the 400 6th grade students at Aviara Oaks Middle School, the ratio of boys to girls is 2:3. Of the 360 students at Valley Mid

denis-greek [22]

Answer:

Aviara his more boys

AOMS 400 students / 5 = 80 X 3 = 240 girls

VMS 360 students / 8 = 45 X 5 = 225 girls

7 0

3 years ago