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3 years ago

5

What is the unknown number that makes the equation true?

2 answers:

S_A_V [24]3 years ago

8 0

The answer is A 1,200

DerKrebs [107]3 years ago

5 0

Answer:

The answer is a. hope this helps :)

Step-by-step explanation:

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san4es73 [151]

Answer:

Step-by-step explanation:

It’s d

4 0

2 years ago

How solve this <br> x+y=5<br> X-y=7

Misha Larkins [42]

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3 years ago

Regular triangular pyramid has 6 cm long base edge and slant height k=9 cm. Find the lateral area of the pyramid.

gregori [183]

Answer:

81 cm²

Step-by-step explanation:

Since, the lateral face of a triangular pyramid is a triangle,

Given,

The base edge or the base of one lateral face of pyramid, a = 6 cm,

And, the slant height or the height of the face, k = 9 cm,

Thus, the area of one lateral face of the pyramid,

$A=\frac{1}{2}\times a\times k$

$=\frac{1}{2}\times 6\times 9$

$=\frac{54}{2}$

$=27\text{ square cm}$

We know that, a Regular triangular pyramid has 3 lateral faces,

Hence, the total lateral area of the pyramid,

$L.A.=3\times\text{ The area of one lateral face}$

$=3\times 27$

$=81\text{ square cm}$

5 0

3 years ago

Read 2 more answers

Plz help me with this question

Hunter-Best [27]

Answer:

i have no idea girl or boy

Step-by-step explanation:

3 0

3 years ago

Find all the perfect cubes between 1000 and 2000.

Nadya [2.5K]

There are only 2 perfect cubes in between 1000 and 2000.

11^3 = 1331
12^3 = 1728

8 0

2 years ago