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nignag [31]
2 years ago
8

(11 + 40 - 3):3 + 62

Mathematics
1 answer:
ZanzabumX [31]2 years ago
6 0

Answer:

(38)3+62

(38)65

Step-by-step explanation:

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What is the area of a triangle with vertices at (-2, -1), (4, -1), (6,5)?
Rina8888 [55]
18 square units should be the right answer
8 0
3 years ago
Please help and solve; big points<br> 3/2 ∜(2(x-6)^3 )+4=16
daser333 [38]

Answer:

x ≈ 18.7

Step-by-step explanation:

This is a big equation, so let's break it down a bit.

\frac{3}{2} \sqrt[4]{(2(x-6) ^3 )} +4=16

Let's start by isolating the radical which is x.

So subtract 4 from both sides :

\frac{3}{2} \sqrt[4]{(2(x-6) ^3)}=12

Now multiply both sides by 2 to get rid of the fraction :

3\sqrt[4]{(2(x-6)^3)} = 24

Now divide both sides by 3 to get rid of the number out of the poly root :

\sqrt[4]{2(x-6) ^3}=8

Now take both sides of the equation to the power of 4 :

2x^3 - 36x^2+216x-432=4096

And lastly, solve :

x = 18.69920 which is rounded up to x ≈ 18.7

4 0
3 years ago
Two coworkers commute from the same building. They are interested in whether or not there is any variation in the time it takes
jenyasd209 [6]

Answer:

Step-by-step explanation:

Hello!

You have two samples.

Sample 1 (time that takes one commute of worker 1)

n₁= 20

S₁²= 12.2

Sample 2 (time that takes one commute of worker 2)

n₂= 20

S₂²= 16.9

The hypothesis is that the first coworker is more consistent with his commute times, this means that the variability of his commute times is less than the variability of the commute times of worker 2. With this in mind, the hypothesis for a variance ratio test is:

H₀: σ₁² ≥ σ₂²

H₁:: σ₁² < σ₂²

α: 0.10

The statistic for this test is:

F= (S₁²/S₂²) * (σ₁²/σ₂²) ~ F_{n1-1;n2-1}

The test is one-tailed (left) with just one critical value:

F_{n_1-1;n_2-1;\alpha } = \frac{1}{F_{n_2-1;n_1-1;1-\alpha }} = \frac{1}{F_{19;19;0.90}} = \frac{1}{1.82} =0.549

(The F-table I use only has the values for high probabilities so I've used a conversion method to obtain the value for the small probability)

Your decision rule is:

If F ≤ 0.549, you reject the null hypothesis.

if F > 0.549, you support the null hypothesis.

The calculated value:

F= (S₁²/S₂²) * (σ₁²/σ₂²) = (12.2/16.9) * 1= 0.722

Since the calculated F-value is greater than the critical value, the decision is to not reject the null hypothesis. So you can say that the variability of the commute times of worker 1 is less than the variability of the commute times of worker 2.

I hope you have a SUPER day!

7 0
3 years ago
A circle of radius 8 is centered at the point (−9,10). Find a formula for f(q), the x-coordinate of the point, where q denotes t
Marta_Voda [28]
I'm not entirely sure what the question is asking, maybe I need more information?
But the equation of the circle would be (x+9)^2 + (y-10)^2 = 64
4 0
3 years ago
PLEASE ANSWER FOR ME THX
Triss [41]

Answer:

if you answer for me

Step-by-step explanation:

D. trapezoid and quadrilateral

6 0
3 years ago
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