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2 years ago

Can someone please help

Mathematics

2 answers:

Bingel [31]2 years ago

6 0

Step-by-step explanation:

Here is the answer...Hope it helps you

Kobotan [32]2 years ago

6 0

Answer:

9. Synonym: fast Antonym: slow 10. Synonym: beautiful Antonym: Ugly 11. Synonym: old Antonym: new 12. Synonym: powerful Antonym: weak 13. Synonym: difficult Antonym: easy 14. Synonym: fall Antonym: spring

Step-by-step explanation:

Synonym means the same meaning of a word, antonym means the opposite of the word

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What effect would doubling all the dimensions of a triangular pyramid have on the volume of the pyramid? Explain your reasoning.

spin [16.1K]

Doubling all the dimensions of a triangular pyramid, the volume of the pyramid becomes quadrupled.

Explanation:

The volume of the triangular pyramid is given by

$V_{1}=\frac{1}{3} \cdot b \cdot h$

where b is the base of the pyramid and

h is the height of the pyramid.

Doubling all the dimensions of the pyramid, we have,

$b=2b$ and $h=2h$

Thus, volume of the triangular pyramid is given by

$V_{2}=\frac{1}{3} \cdot2b \cdot 2h$

Multiplying, we get,

$$V_{2}=\frac{1}{3}4bh$

$$V_{2}=4\frac{1}{3}bh$

$V_2$=4 \cdot V_{1}$$

Thus, doubling all the dimensions of a triangular pyramid, the volume of the pyramid becomes quadrupled.

4 0

3 years ago

Read 2 more answers

Which of the following is a rational number? 8 91 JT 48 49

Murrr4er [49]

Answer:

A rational number is any number that can be expressed as a ratio of two integers (hence the name "rational"). ... For example, 1.5 is rational since it can be written as 3/2, 6/4, 9/6 or another fraction or two integers. Pi (π) is irrational since it cannot be written as a fraction

Step-by-step explanation:

91, 49, 48, 8 are rational number

3 0

2 years ago

How many ways can a committee chairman choose 4 people for a subcommittee if there are 12 members on the whole committee?

Marina86 [1]

A group of k elements can be chosen from a group of n elements in $\frac{n!}{k!(n-k)!}$ ways.

$(^{12} _4)=\frac{12!}{4!(12-4)!}=\frac{12!}{4! \times 8!}=\frac{8! \times 9 \times 10 \times 11 \times 12}{2 \times 3 \times 4 \times 8!}=\frac{9 \times 10 \times 11 \times 12}{2 \times 3 \times 4}= \\ \\
=3 \times 5 \times 11 \times 3=495$

The answer is B. 495.

7 0

3 years ago

I need help ASAP please...............

Colt1911 [192]

Google it please!!!!!!!!!

7 0

3 years ago

Read 2 more answers

The formula A = Pe^rt calculates the amount an investment earning a nominal rate of r compounded continuously is worth. Show tha

8090 [49]

Answer:

t = In2/ r

Step-by-step explanation:

Given the formula : A = Pe^rt

For investment to double ;

Final amount (A) = 2 * initial investment (p)

A = 2p

Hence,

2p = pe^rt

2 = e^rt

Take the In of both sides

In2 = rt

Divide both sides by r

In2 /r = rt /r

In2/ r = t

t = In2/ r ; Hence, the proof

5 0

3 years ago