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MaRussiya [10]
3 years ago
8

Need Help ASAP I will CORRECTED BRAINLESTS

Mathematics
2 answers:
Darina [25.2K]3 years ago
8 0

Answer:

622m²

Step-by-step explanation:

Alright so i'll do the area of the rectangular triangular prism first.

Because the formula for a rectangular triangular prism is SA=bh+pl we'll use that.

We have to find p first though, the formula for p is <em>p=b+h+c</em>

p=3+4+5

p=12

Now that we have p we can finish doing the problem.

3×4+12×19=240m²

We have the first shape down, now for the rectangle

2×(19×5 + 19×4 + 5×4) = 382 m²

So just add 382m² and 240m² and you get 622m²

NARA [144]3 years ago
7 0

Answer: the surface area one: 682m² I didn't screenshot this one

The volume 494. Has attachments below i added them answers.

Step-by-step explanation:

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How many solutions can be found for the linear equation? 3(x+4)=3x+4
Hitman42 [59]
Hi there! The answer is 0 solutions.

3(x + 4) = 3x + 4
First we need to work out the parenthesis (for instance possible by using rainbow technique).

3x + 12 = 3x + 4
Now subtract 12.

3x = 3x  - 8
Now we can see that the right side of the equation is always 8 smaller than the left side of the equation. Because the right is always smaller, this equation cannot be solved. Therefore there are no solutions to this equation. The answer is 0 solutions.

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3 years ago
Suppose that a hypothesis test is conducted. 12 out of 100 subjects have the necessary qualities. The null hypothesis is that th
Veronika [31]

Answer:

Option A

The p-value is less than the significance level of 0.05 chosen and so we reject the null hypothesis H0 and can conclude that the proportion of the subjects who have the necessary qualities is less than 0.2.

Step-by-step explanation:

Normally, in hypothesis testing, the level of statistical significance is often expressed as the so-called p-value. We use p-values to make conclusions in significance testing. More specifically, we compare the p-value to a significance level "α" to make conclusions about our hypotheses.

If the p-value is lower than the significance level we chose, then we reject the null hypotheses H0 in favor of the alternative hypothesis Ha. However, if the p-value is greater than or equal to the significance level, then we fail to reject the null hypothesis H0

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Now, applying this to our question;

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5 0
3 years ago
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What is the difference of the two expressions?
valkas [14]

<em>Answer is x + 12</em>

<em />

<h2>Explanation:</h2>

Hello! Recall that you have to write clear questions in order to get exact answers. So I'll help you assuming that the two expressions are the following:

First expression:

2x+9

Second expression:

x-3

So the operation we need to perform is:

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Recall some rules:

(+)\times (+)=+ \\ \\ (-)\times (-)=+ \\ \\ (-)\times (+)=- \\ \\ (+)\times (-)=-

Hence:

2x+9-(x-3)=2x+9-x+3 \\ \\ \\ Combine \ like \ terms: \\ \\ (2x-x)+(9+3) \\ \\ \boxed{x+12}

<h2>Learn more:</h2>

Simplify: brainly.com/question/1291365

#LearnWithBrainly

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