3 years ago

What is the surface area? 7 ft 7 ft 7 ft square feet please

Mathematics

1 answer:

saw5 [17]3 years ago

7 0

Answer:

294 square feet.

Step-by-step explanation:

Each face is 7*7 square feet or 49 square feet.

There are 6 faces so we multiply by 6.

49 times 6 is 294.

You might be interested in

Can someone please solve this for me

Savatey [412]

Answer:

m<JKD = 22 degrees

Step-by-step explanation:

21x + 5 + 4x + 2 = 132

25x + 7 = 132

25x = 125

x = 5

m<JKD = 4x + 2

4(5) + 2

20 + 2

5 0

2 years ago

Read 2 more answers

Solve

goblinko [34]

The answer should be B

8 0

2 years ago

Read 2 more answers

Find BC please help ASAP!! A. 31.4km B. 26.6km C. 25km D. 30.7km

likoan [24]

Answer:

root631 will be hypotenuse

3 0

2 years ago

Read 2 more answers

Double angle identity. Just 5 questions. Really need help as my teacher has been frustrated with me

BartSMP [9]

The double angle identities are

$\sin(2x)=2\sin x\cos x$

$\cos(2x)=\cos^2x-\sin^2x$

Then

$2\sin\dfrac\pi6\cos\dfrac\pi6=\sin\left(\dfrac{2\pi}6\right)=\sin\dfrac\pi3$

$\cos^2\dfrac\pi{10}-\sin^2\dfrac\pi{10}=\cos\left(\dfrac{2\pi}{10}\right)=\cos\dfrac\pi5$

The second identity together with the Pythagorean identity, $\sin^2x+\cos^2x=1$ , gives us another equivalent expression:

$\cos^2x-\sin^2x=\cos^2x-(1-\cos^2x)=2\cos^2x-1$

$2\cos^2(0.5)-1=\cos(2\cdot0.5)=\cos1$

4 0

2 years ago

Read 2 more answers

64% as a fraction or mixed number in simplest form

Hatshy [7]

64% as fraction = 64/100 4 into 64 is 16 and 4 into 100 is 25.

= 16 / 25

= 16 / 25 in simplest form.

3 0

2 years ago