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3 years ago

Gail needs 15 yards of fabric for a quilt. How many different patterns of fabric does she need if she buys 2

Mathematics

1 answer:

yuradex [85]3 years ago

3 0

Answer:

Gail can use 6 different patterns

Step-by-step explanation:

15/2.5 = 6

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Write the equation of a line that has undefined slope and goes through the point (3,3)

mihalych1998 [28]

The lines with the equation x = a, where a ∈ R have undefined slope.

The line goes through the point (3, 3).

Therefore the equation of this line is x = 3.

8 0

3 years ago

The manager of a juice bottling factory is considering installing a new juice bottling machine which she hopes will reduce the a

marshall27 [118]

Answer:

Reject H0 and conclude that volume filled by old machine varies more than volume filled by new machine

Step-by-step explanation:

Given the data:

Old machine: 8.2, 8.0, 7.9, 7.9, 8.5, 7.9, 8.1,8.1, 8.2, 7.9

New machine: 8.0, 8.1, 8.0, 8.1, 7.9, 8.0, 7.9, 8.0, 8.1

To test if volume filled by old machine varies more than volume filled by new machine :

Hypothesis :

H0 : s1² = s2²

H1 : s1² > s2²

Using calculator :

Sample size, n and variance of each machine is :

Old machine :

s1² = 0.37889

n = 10

New machine :

s2² = 0.006111

n = 9

Using the Ftest :

Ftest statistic = larger sample variance / smaller sample variance

Ftest statistic = 0.37889 / 0.006111

Ftest statistic = 62.001

Decision region :

Reject H0 ; If Test statistic > Critical value

The FCritical value at 0.05

DFnumerator = 10 - 1 = 9

DFdenominator = 9 - 1 = 8

Fcritical(0.05, 9, 8) = 3.388

Since 62 > 3.388 ; Reject H0 and conclude that volume filled by old machine varies more than volume filled by new machine

6 0

3 years ago

HELPPPPPPPPPpp THIS IS HARD. find the value of x

Tanya [424]

Answer:

x = 155°

Step-by-step explanation:

The sum of the angles in any triangle = 180°

1. The triangle with the right angle and the 35° angle: We know the acute angles of a right angle sum = 90°. So 35° + what angle = 90° ; the missing angle = 90° - 35° = 55°

You have a straight angle formed with the 60° + ?° + 55° that is equal to 180°. 60° + 55° + ? = 180; 115°+ ? = 180; ? = 65°.

Now "x" is any exterior angle which tells you that it is equal to the two remote angles. The two remote angles are 65° + 90° = x° ; x = 155°

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4 0

3 years ago

Read 2 more answers

Shania is making eight gift bags to give out to her friends coming over to her house for a movie night. Each gilt bag will con

erma4kov [3.2K]

Answer: 20x + 32 or $20 spent on the nail polish & $32 spent on the kits

Formula:

bags($polishx + $kit)

Work:

8(2.5x + 4)

8 x 2.5x = 20x

8 x 4 = 32

3 0

2 years ago

How to find the inverse of h(x) = 3/ -x - 2 List steps.

PtichkaEL [24]

To find the inverse,

First, you would have to switch the domain and range. In other words, swap x and y:

h(x) = 3/ -x-2
y = 3/ -x-2
x = 3/ -y-2

Then, when you have this, simply solve for y:

x = 3/-y-2
x (-y-2) = 3/-y-2 (-y-2)
x(-y-2) /x= 3 /x
-y-2 = 3/x
-y = 3/x + 2
y = -3/x -2

So the inverse would be
h⁻¹(x)= -3/x -2

7 0

4 years ago