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Lyrx [107]
3 years ago
7

Ex 14 dau coroana va rog

Mathematics
1 answer:
Lelechka [254]3 years ago
8 0

Answer:

dont know the answer

Step-by-step explanation:

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Ok so I’m using most of my points on this so fake answers will be reported understand ok good
Arada [10]
<h2>○=> <u>Correct answer</u> :</h2><h2>\color{plum} = \tt\bold{30 \: cubic \: inches}</h2><h3>○=> <u>Steps to derive correct answer</u> :</h3>

Given :

Base area of Ms. Jones decorative pyramid = 6 inches²

Height of the decorative pyramid = 15 inches

We know that :

\color{hotpink}\tt \: volume \: of \: a \: triangular \: pyramid\color{plum} \tt \: =  \frac{1}{3}Bh

Volume of the decorative pyramid :

=\tt  \frac{1}{3}  \times 15 \times 6

=\tt \frac{15 \times 6}{3}

=\tt  \frac{90}{3}

\color{plum} =\tt 30 \:  {inches}^{3}

Therefore, the volume of the decorative pyramid with Ms. Jones = 30 inches³

6 0
3 years ago
What is the average rate of change for ƒ(x) = −2^x + 70 over the interval 2 ≤ x ≤ 6? A) −15 B) −16 C) −30 D) −32
N76 [4]

Answer:

A

Step-by-step explanation:

The average rate of change of f(x) in the closed interval [a, b ] is

\frac{f(b)-f(a)}{b-a}

Here [ a, b ] = [ 2, 6 ], thus

f(b) = f(6) = - 2^{6} + 70 = - 64 + 70 = 6

f(a) = f(2) = - 2² + 70 = - 4 + 70 = 66

average rate of change = \frac{6-66}{6-2} = \frac{-60}{4} = - 15 → A

3 0
4 years ago
Read 2 more answers
Differentiation<br><br>Please help me! ​
Sunny_sXe [5.5K]

Answer:

\frac{dy}{dx}  =  - 1 \frac{5}{9}

Step-by-step explanation:

Please see the attached picture for the full solution.

☆ \frac{1}{x}  = x^{ - 1}

3 0
3 years ago
If the train went 390 miles in 3 hours what was the distance
Otrada [13]

Answer:

13 is the answer.

Step-by-step explanation:


5 0
3 years ago
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Es el punto donde coinciden tres aristas​
Likurg_2 [28]
El punto donde coinciden 3 o más aristas de un poliedro se denomina : vértice
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3 years ago
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