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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))

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3×-7 equivalent expressions A. -21 B. 4 C. -4 D. 21

USPshnik [31]

Answer:

-21

Step-by-step explanation:

3x7=21 and a negative x a positive is always negative

6 0

3 years ago

To one-one functions g and h are defined as follows.

Andreyy89

Answer:

9
(x-8)/3
-1

Step-by-step explanation:

The inverse function for a set of ordered pairs can be found by swapping the x- and y-coordinates in each pair.

$g^{-1}(-1)=9\qquad\text{from the $g(x)$ ordered pair $(9, -1)$}$

The inverse of a function expressed algebraically can be found by swapping the x- and y-variables and solving for y.

$h^{-1}(x)\qquad\text{is found from }x=h(y)\\\\x=3y+8\\x-8=3y\\\\y=\dfrac{x-8}{3}\\\\\boxed{h^{-1}(x)=\dfrac{x-8}{3}}$

A function of its own inverse returns the original value:

$\boxed{\left(h\circ h^{-1}\right)(-1)=-1}$

6 0

3 years ago

Find the circumference of a circle with radius, r = 11.5m. Give your answer in terms of π .

nignag [31]

Answer:

So,

if C = 2πR

you take 2π you get 6.28

so C=6.28 x r

the radius is 11.5 so

6.28 x 11.5 = 72.2566

the circumference is 72.2566

Step-by-step explanation:

4 0

3 years ago

The modified expression, x3(2x + 5) – 4(2x + 5), has two terms with a common factor

fenix001 [56]

Yes, the common factor is (2x+5) and the equation can be expressed as:

(x^3-4)(2x+5)

8 0

3 years ago

Read 2 more answers

Simplify the expression. 54−6 ⋅ 5÷3 Enter your answers in the boxes. 54−6 ⋅ 5÷3 =54− ÷3 =54− =

sineoko [7]

Hey
Here it is, can u give me a brainliest answer???

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3 years ago