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Lady_Fox [76]
3 years ago
5

Which functions are symmetric with respect to the y-axis? Check all that apply.

Mathematics
1 answer:
xenn [34]3 years ago
4 0

Answer:

f(x) = |x|, f(x) = [x] + 6

Step-by-step explanation:

Almost all of these are absolute values equations, which means the y doesn't change if x is positive or negative. The first one is the parent form, which is the simplest equation of the absolute equation, so it's symmetric with respect to the y-axis. The second equation is translated 3 units to the left, and the third is translated 31 to the left. The forth is translated 6 up, so it's still symmetric with respect to the y-axis. The fifth is translated 61 units left, and the last one is simply a line, which isn't symmetric.

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Find the missing value so<br> that the two points have a<br> slope of -13/2 (-2,y) and (0,-4
Art [367]

Answer:

y=9

Step-by-step explanation:

slope is (y2-y1)/(x2-x1), so we plug in the values. (-4-y)/(0 - (-2)). so we get -4-y/2 since zero minus negative 2 is positive 2. given the slope is -13/2, -4-y must be equal to negative 13. So we set an equation of -13 = -4 - y. We add 4 to 13, and get -9 = -y. We multiply each side by a -1, and we get y equals 9.

We can check this by plugging 9 back into our original slope equation. (-4-9)/(0-(-2) which gives us -13/2.

6 0
3 years ago
Suppose you have purchased a filling machine for candy bags that is supposed to fill each bag with 16 oz of candy. Assume that t
nexus9112 [7]

Answer:

H0: μ ≥ 16

H1: < 16

−2.748749;

0.011275;

Reject the Null

Step-by-step explanation:

Given the data:

15.87, 16.02, 15.78, 15.83, 15.69, 15.81, 16.04, 15.81, 15.92, 16.10

Null hypothesis ; H0: μ ≥ 16

Alternative hypothesis ; H1: < 16

Sample size, n = 10

From the data:

Using calculator,

Sample mean, m = 15.887

Standard deviation, s = 0.13

The test statistic, T

(m - μ) / s/sqrt(n)

(15.887 - 16) / (0.13/sqrt(10))

= −2.748749

Using the p value from test statistic calculator :

Degree of freedom (df) = 10 - 1 = 9 at 0.05 significance level is 0.011275

Since the p value is < 0.05

0.011 < 0.05

We reject the Null and conclude that the mean fill weight is less than 16 oz

7 0
3 years ago
if the unit selling price is2.50 and the unit cost 1.00 wjat action is needed maintain gross margin percentage when unit cost in
Allushta [10]
The selling price is 2.5 times the cost. If the cost goes up by 0.25, the selling price needs to go up by 2.5*0.25 = 0.63 in order to maintain the gross margin.
3 0
3 years ago
Colin invests £1100 into his bank account. He receives 5% per year simple interest. How much will Colin have after 6 years? Give
motikmotik

Answer:

Step-by-step explanation:

P = £1100

r = 5%

t = 6 years

I =P*r*t

I =1100*\frac{5}{100}*6\\\\I=11*5*6\\\\I = 330

Amount = P + I = 1100 + 330 = £1430

5 0
3 years ago
A room measures 12 feet by 15 feet how many square yards of vinyl floor covering will it take to cover the floor
Anastaziya [24]

Answer:

Area= L X W  so 12 x 15= 180 square yards


6 0
4 years ago
Read 2 more answers
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