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faltersainse [42]
2 years ago
12

(2a² – b) (за² + 3b)

Mathematics
1 answer:
nataly862011 [7]2 years ago
6 0

Answer:

a^4+3a^2-3b^2

Step-by-step explanation:

\hookrightarrow \: (2 {a}^{2}  - b)(3 {a}^{2}  + 3b) \\  \hookrightarrow \:2 {a}^{2} (3 {a}^{2}  + 3b) - b(3 {a}^{2}  + 3b) \\  \hookrightarrow \:6 {a}^{4}  + 6 {a}^{2} b - 3 {a}^{2} b - 3 {b}^{2} \\   \hookrightarrow \:{a}^{4}  + 3 {a}^{2} b- 3 {b}^{2}

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Zolol [24]

There's no convincing evidence at 0.05 significance level that this brand of toilet paper will require less than 26 squares.

<h3>What is a significance level?</h3>

A significance level simply means is the probability that an event has occured by chance.

In this case, there's convincing evidence at 0.05 significance level that this brand of toilet paper will require less than 26 squares to absorb 1/4 cup of water. Therefore, we fail to reject the null hypothesis.

A type of error that may have been made is type II error. This is the non rejection if the null hypothesis when it's false.

Learn more about significance level on:

brainly.com/question/9163177

5 0
2 years ago
What trig function would I use to solve for x?
IRINA_888 [86]

Answer:

Cosine

Step-by-step explanation:

SohCahToa

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8 0
2 years ago
How do you do this question?
Evgesh-ka [11]

Step-by-step explanation:

K is an upper bound for│f"(x)│on the interval [0, 1], so x ≤ 1.

Sine and cosine have maximums of 1, so an upper bound of │f"(x)│is:

│f"(x)│≤ (76 · 1 + 152 · 1 · 1)

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8 0
3 years ago
What is the value of x?<br><br> x= <br> units
attashe74 [19]
By Pythagoras theorem

RQ^{2}= x^{2} + 16^{2}
RS^{2}= x^{2} + 9^{2}

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SQ^{2}=2 x^{2} +256+81
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625-337=2 x^{2}
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8 0
3 years ago
Read 2 more answers
Help, please I need a mathswatch answer this is from the mathswatch website
torisob [31]

Answer:

158.76

Step-by-step explanation:

11.7*15.6=182.52

182.52/2=91.26

Area of BCD=91.26

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135/2=67.5

Area of BAD=67.5

Altogether:

91.26+67.5=158.76

4 0
2 years ago
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