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3 years ago

On a number line, which number is 7/9 of the way from -6 to 3

Mathematics

1 answer:

Paha777 [63]3 years ago

4 0

Answer:

Step-by-step explanation:

if you go from -6 to 3 it is 9 spaces. so 7 spaces equals one.

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The gas mileage for a certain model of car is known to have a standard deviation of 6 mi/gallon. A simple random sample of 49 ca

lord [1]

Answer:

The answer is "(27.030,29.770)"

Step-by-step explanation:

$(\bar{x}) = 28.4$

$(n)= 49$

$(\sigma) = 6$

$(CI) = \bar{x}\pm z^*_{\frac{\alpha}{2}} \frac{\sigma}{\sqrt{n}}$

$z^*_{\frac{\alpha}{2}}\ for \ 89\%\ confidence = 1.598 \\\\\text{Using z table }\\\\ NORM.S.INV(1-\frac{(1-0.89)}{2})$

$CI = 28.4 \pm 1.598 \times \frac{6}{\sqrt{49}}=(27.030,29.770)$

8 0

3 years ago

2x+1=(-3)<br>what is the value of x??????

ASHA 777 [7]

Answer:

x=-2

Step-by-step explanation:

2x+1=(-3)

-1 on both sides

2x=-4

÷2 on both sides

x=-2

Hope this helps =]

3 0

2 years ago

Help me pls!!!!!!!!!

Alexeev081 [22]

Answer:

Step-by-step explanation:

Line EJ is a straight line, with Line DC cutting through it. So 180 = Angle DCJ + Angle DCE. So Angle DCE = 48. Triangles are equal to 180°. So 180 = ? +39 +48. So ? = 93

8 0

2 years ago

Emily says that a square is always a rectangle. Jenna says a rectangle is always a square. Who is correct and why are they corre

Travka [436]

Answer:

Jenna is right

Step-by-step explanation:

Jenna is right because what makes up a square is its four sides. When calculating the area of a rectangle you use the same formula as you would for a square. A rectangle is just an elongated square.

5 0

2 years ago

Please help me! Thank you!

love history [14]

Answer:

Graph A?

Step-by-step explanation:

Just trying to help, but I don't really know. I would say A because its a HUGE jump, but B is a steady incline, but assuming that A has the little incline in the beginning, and then the jump, then back to the incline, probably A would be more profitable.

7 0

3 years ago