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Deffense [45]
2 years ago
9

PLEASE ANSWER EACH OF THESE QUESTIONS IM GIVING OUT BRAINLIEST !!!!! D:

Mathematics
2 answers:
Alexus [3.1K]2 years ago
3 0

Answer:

no 1

2x^2 + 6

no 2

x^2 + 63

no3

2x^2 + 20

no 4

3 x 3 x 4 divided by 3

=12cm^3

kompoz [17]2 years ago
3 0

Answer:

hypotenuse=15 ft

Step-by-step explanation:

(2x+1)(x+6)=2x^2+13x+6

(x+7)(x+9)=x^2+16x+63

(2x+4)(x+5)=2x^2+14x+20

4 no question

V=L*B*H/3

=3*3*4/3

=12 in^3

L=lenghth

B=breadth

H=height

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Two non-coplanar lines ? intersect
mario62 [17]
Never. If they are not on the same plane, then they cannot intersect because 2 lines and 1 point are always on a plane, in this case the original line, then a point in the middle to the point that creates the other line would be included, hence if they are non-coplaner then they cannot intersect. 
5 0
3 years ago
A therapist wanted to determine if yoga or meditation is better for relieving stress. The therapist recruited 100 of her high-st
schepotkina [342]

Answer:  Choice B

There is not convincing evidence because the interval contains 0.

========================================================

Explanation:

The confidence interval is (-0.29, 0.09)

This is the same as writing -0.29 < p1-p1 < 0.09

The thing we're trying to estimate (p1-p2) is between -0.29 and 0.09

Because 0 is in this interval, it is possible that p1-p1 = 0 which leads to p1 = p2.

Therefore, it is possible that the population proportions are the same.

The question asks " is there convincing evidence of a difference in the true proportions", so the answer to this is "no, there isn't convincing evidence". We would need both endpoints of the confidence interval to either be positive together, or be negative together, for us to have convincing evidence that the population proportions are different.

5 0
3 years ago
<img src="https://tex.z-dn.net/?f=8a%283b%2B6c-7c%29" id="TexFormula1" title="8a(3b+6c-7c)" alt="8a(3b+6c-7c)" align="absmiddle"
tino4ka555 [31]

Answer:

24ab-8ac

Step-by-step explanation:

Assuming you want to simplify it.

Original equation: 8a(3b+6c-7c)

Apply 8a to each variable in the paranthesis: (8a)(3b)+(8a)(6c)+(8a)(-7c)

After multiplication: 24ab+48ac-56ac

Combine like terms:  24ab-8ac

8 0
2 years ago
What is m CDJ? <br>please help me I'm super confused.​
Citrus2011 [14]

Answer:

34 degrees.

Step-by-step explanation:

Assuming AK is a straight line and being shown angle JDK is right and 90 degrees it can be stated that 4x + (3x-8) = 90 degrees.

Drop the parentheses and get 7x - 8 = 90.

Add 8 to both sides 7x = 98.

Divide both sides by 7, x = 14.

Plug that x value into (3x-8), [3(14)-8] = 34 degrees.

8 0
2 years ago
Read 2 more answers
∆ABC is reflected about the line y = -x to give ∆A'B'C' with vertices A'(-1, 1), B'(-2, -1), C(-1, 0). What are the vertices of
blsea [12.9K]
Hi there!
Reflections across the line y = -x always go by the rule (-y, -x). We can use this rule to get our answer here. We are given the aftermath of the reflection coordinates, which are <span>A'(-1, 1), B'(-2, -1), and C'(-1, 0). All we have to do now is switch up the coordinate values and multiply them by -1. Here is the work - 
A'(-1, 1) => (1, -1) => x -1 => A(-1, 1)
B'(-2, -1) => (-1, -2) => x -1 => B(1, 2)
C'(-1, 0) => (0, -1) => x -1 => C(0, 1)
Therefore, the coordinates of Triangle ABC are A(-1, 1); B(1, 2); C(0,1). Hope this helped and have a phenomenal day!</span>
6 0
3 years ago
Read 2 more answers
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