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2 years ago

Free answer don't ask why i got it wrong

Mathematics

2 answers:

attashe74 [19]2 years ago

8 0

Answer:

the answer is b

Step-by-step explanation:

since yx = 3 when multiplying it lines up with all of graph b's values

hope this helps:)

katrin [286]2 years ago

5 0

This helps a lot Idek what it’s for but th an you for your participation

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A whopping 3,289 people attended the

astraxan [27]

Answer:

126 women

Step-by-step explanation:

7 0

3 years ago

Find all of the solutions for the following equation. 2 sin q + 3 = sin q + 2

kow [346]

Answer:

q = 270 degrees + 360n where n is an integer

Step-by-step explanation:

2 sin q + 3 = sin q + 2

Subtract sin q from each side

2 sin q - sin q + 3 = sin q + 2

sin q + 3 = 2

Subtract 3 from each side

sin q +3-3 = 2-3

sin q = -1

Take the inverse sin of each side

sin ^-1 (sin q) = sin^-1 (-1)

q = 270 degrees + 360n where n is an integer

3 0

4 years ago

According to the manufacturer of a backup UPS device, the normal output voltage is 120 volts. The sample of 40 measured voltage

anyanavicka [17]

Answer:

z = 1.83<1.96

null hypothesis is accepted

The sample is came from a population mean

Step-by-step explanation:

Step :-1

The sample of 40 measured voltage amounts from a unit have a mean of 123.59 volts and a standard deviation of 0.31 volts

given sample size n =40

mean of the sample ×⁻ = 123.59 volts

standard deviation of sample σ = 0.31 volts

Step2:-

Null hypothesis :-

the sample is from a population with a mean equal to 120 volts.

H₀ : μ =120

Alternative hypothesis:-

H₁ : μ ≠120

level of significance:- α =0.05

Step 3:-

The test statistic

$z = \frac{x_{-}-mean }{\frac{S.D}{\sqrt{n} } }$

substitute values and simplification

$z = \frac{123.59-120}{\frac{0.31}{\sqrt{40} } }$

on simplification we get the calculated value

z = 1.83

The tabulated value z =1.96 at 0.05 % level of significance

Conclusion:-

Calculated Z < The tabulated value z =1.96 at 0.05 % level of significance

so the null hypothesis is accepted

The sample is came from a population mean

4 0

3 years ago

Ted is making trail mix for a party .He mixes 1/1/2cups of nuts,1/4 cup of raisins,and 1/4 cup of pretzels.How many cups of pret

balandron [24]

Answer:

1.875 or $1\frac{7}{8}$ cups of pretzel

Step-by-step explanation:

The number of cups needed is equivalent to the probability of pretzel in the mix times the number of cups in the mix.

-The probability of pretzel is :

$P(pretzel)=\frac{0.2}{0.25+0.25+1.5}\\\\=0.125$

We multiply this probability by the number of cups of the mix:

$=P(pretzel)\times (mix \ cups)\\\\=0.125\times 15\\\\=1.875 \ or \ 1\frac{7}{8}$

Hence, 1.875 or 1/7/8 cups of pretzel is needed.

6 0

4 years ago

Read 2 more answers

Numbers 1 - 10 are written on cards and placed in a bag. Find the probability of choosing a number greater than 5 or choosing an

Step2247 [10]

{1,3,5,7,9} {6,7,8,9,10}

The union of these two sets is

{1,3,5,6,7,8,9,10}

There are 8 numbers here out of the 10 possible.

So the answer for this question is 8/10 or 4/5.

6 0

3 years ago