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mojhsa [17]
3 years ago
9

Which option shows the correct hypotheses for the test that the explanatory variables jointly significantly predict engine overh

aul time?
Mathematics
1 answer:
jok3333 [9.3K]3 years ago
3 0

Unclear question. However, I inferred you want to know about hypotehsis test.

Step-by-step explanation:

Remember, any hypothesis test is divided into two types. They are:

  • the null hypothesis and
  • the alternate hypothesis.

Using this question example, here's the hypothesis statements ma sound:

Null hypothesis; There is a significant impact by the explanatory variables on engine overhaul time.

Alternate hypotheses; There is no impact by impact by the explanatory variables on engine overhaul time.

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atroni [7]

Answer: use mathaway it’s the best

Step-by-step explanation:

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3 years ago
Simplify: (–8) • (6) – (5) • (–2)
horrorfan [7]

(–8) • (6) – (5) • (–2)

= (-8*6)-(5*-2)

= (-48)-(-10)

= -48+10

= -38

(–4) • (9) – (5) • (–2)

= (-4*9)-(5*-2)

= (-36)-(-10)

= -36+10

= -26

Evaluate 3(a – 4b) when a = –2 and b = 5.

= 3[-2 - 4(5)]

= 3[-2 -20]

= 3(-22)

= -66

Evaluate 4(a – 3b) when a = –4 and b = 6.

= 4[-4 - 3(6)]

= 4[-4 -18]

= 4(-22)

= -88

Evaluate 5(a – 2b) when a = –3 and b = 5.

= 5[-3 - 2(5)]

= 5(-3 - 10)

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6 0
3 years ago
Read 2 more answers
A student writes the equation for a line that has a slope of -6 and passes through the point (2, –8).
Ilia_Sergeevich [38]

Answer:

The error in the students work is

y -(-8) + 8 = -6x + 12 + 8

subtracting a negative is adding

y+8

They should subtract 8 from each side instead of adding 8 to each side

Step-by-step explanation:

We can use point slope form since we are given a point and the slope

y-y1 = m( x-x1)

y--8 = -6(x-2)

y+8 = -6(x-2)

Distribute the -6

y+8 = -6x+12

Subtract 8 from each side

y+8-8 = -6x+12-8

y = -6x+4

The error in the students work is

y -(-8) + 8 = -6x + 12 + 8

subtracting a negative is adding

y+8

They should subtract 8 from each side instead of adding 8 to each side

4 0
3 years ago
Read 2 more answers
(2x3)over 2-5 over 2
matrenka [14]

Answer:

2x3/2-5/2

=6/-3/2

=-1

6 divide by 2 is +3 and +3 divide by - 3 equals - 1

6 0
4 years ago
Help with proving the following
Galina-37 [17]

Hello and Good Morning/Afternoon

<u>Let's take this problem step-by-step</u>:

<u>First step</u>

⇒ consider the fact cotθ = 1 / (tanθ)

 \frac{1+tanx}{1+cotx} =\frac{1+tanx}{1+\frac{1}{tanx} }

<u>Second step</u>

⇒ form a common denominator for the fraction in the 'denominator'

\frac{1+tanx}{1+\frac{1}{tanx} } =\frac{1+tanx}{\frac{tanx+1}{tanx} }

<u>Let's flip over the fraction on the denominator</u>

\frac{1+tanx}{\frac{tanx+1}{tanx} } =(1+tanx) * \frac{tanx}{1+tanx} =tanx

<u>And there you go, you have </u><u>proved the statement</u> by <u>following these steps!</u>

 *note, I used 'x' because the equation creator didn't have 'θ' symbol

Hope that helps!

#LearnwithBrainly

4 0
2 years ago
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