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Jobisdone [24]
3 years ago
15

For the following problem, y varies directly as x.

Mathematics
1 answer:
Morgarella [4.7K]3 years ago
3 0

Answer:

Step-by-step explanation:

its will be 80 i beleive because 8x10 equals 80 and

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As shift manager at a local fast food place, you are responsible for ensuring quality control. You do not want to weigh all the
vaieri [72.5K]

Answer:

Kindly check explanation

Step-by-step explanation:

xbar = 2.6

Sample size, n = 100

s = 0.4

Mean, μ = 4

The test statistic :

(xbar - μ) ÷ s/sqrt(n)

(2.6 - 4) ÷ 0.4/sqrt(25)

1.4 ÷ 0.08

= −17.5

Critical tvalue for 95% confidence interval :

df = n - 1 = 25 - 1 = 24

Tcritical at 0.05/2; df

Tcritical = ±2.064

Since, Tstatistic value does not fall within the Tcritical value ±2.064, we reject the Null

Using the p value from Tstatistic calculator :

P value at t = - 17.5 at 0.05 < 0.000001

Since p value is < 0.05, we reject H0.

7 0
3 years ago
Please help a girl out!!!
I am Lyosha [343]

Answer:

I got 14 x -2

Step-by-step explanation:

to add all of the like terms you get:

2x + 7x + 5x = 14x

then add the other terms you get:

-6 + 4 = -2

when adding the two parts together you get:

14x -2

Am pretty sure this is right, sorry if its wrong

8 0
3 years ago
Help please :(((((( ill givve brainly
SVETLANKA909090 [29]

Answer:

2.86 hours = £26.57

Step-by-step explanation:

5 builders = 3.5 hours

<u>Express it in ratio form:</u>

5 : 3.5 (B1:H1)

<u><em>However, on Tuesday 2 builders(B2) are available. We can set up a proportion to find the number of hours.</em></u>

<u><em>Since This is an inverse proportion, it will be written like:</em></u>

=> B1:H1 = H2:B2

Where H2 = x(no. of hours)

=> 5 : 3.5 = x : 2

<u><em>Product of means = Product of Extremes</em></u>

=> 5*2 = 3.5x

=> 10 = 3.5 x

Dividing both sides by 3.5

=> x = 2.86 hours

<u><em>Now, On Tuesday:</em></u>

1 hour = £9.3

<u><em>For 2.86 hours,</em></u>

2.86 hours = £9.3 × 2.86

2.86 hours = £26.57

6 0
3 years ago
Read 2 more answers
The vertex of this parabola is at (4,-3). which of the following could be its equation?
Mama L [17]
The answer is A.
I used the formula for finding the vertex of a parabola and I got the first answer choice. So A is correct. :)
6 0
4 years ago
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Find the circumference of the circle. Round to the nearest hundredth.<br> Diameter<br> 7 mm
garri49 [273]

Answer:

C=21.99mm

Step-by-step explanation:Hope this helps!

3 0
3 years ago
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