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3 years ago

I need help please and thank you

Mathematics

1 answer:

rusak2 [61]3 years ago

7 0

Answer:

400

Step-by-step explanation:

Movies, drinks and candies are independent events and you can choose one for each.

Movie: 10 options can be selected

drinks: 5

candy: 8

All types: 10 x 5 x 8 = 400

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Ill give 5 starts to who ever helps me.

Ivahew [28]

No it doesn't be i thought that it you would have to find a domain but i couldn't

5 0

3 years ago

Try solving this: (5 3/4) (2)

denpristay [2]

Answer:

11 1/2

Step-by-step explanation:

7 0

3 years ago

A person buys X meter for 5

Nady [450]

Step-by-step explanation:

I guess, it means every meter costs these amounts.

and the specified costs are not fit the whole bundle.

it is also unclear, if "half of it" means half of the original x meters, or half of the remaining meters (after selling 2/5 of the original meters). I assume the first.

so, we have

-5x

+ 2/5x × 5.5

+ 1/2x × 6.4

+ (10/10 - 4/10 - 5/10)x × 6 = + 1/10x × 6

= 120 ( a income minus costs is the profit, so balancing both sides in a "+" and "-" expression gives us the remaining profit).

about the line with the 1/10 :

the leftovers. 10/10 is the whole x at the beginning.

2/5 = 4/10.

1/2 = 5/10.

I brought all involved fractions to the same denominator of the smallest common multiple of 2 and 5 (10).

in full

-5x + (2/5)x×5.5 + (1/2)x×6.4 + (1/10)x×6 = 120

-5x + 2.2x + 3.2x + 0.6x = 120

-5x + 6x = 120

x = 120

so, he bought 120m in the first place.

8 0

3 years ago

Write an equation in slope-intercept form of the line parallel to y=8x-8 through (5,2)

AlekseyPX

Answer:

The equation would be y = 8x - 38

Step-by-step explanation:

To find the equation of this new line, we first need to identify the slope of the first line. In slope-intercept form, the slope is always the coefficient of x. This makes the slope of the first equation 8. Since parallel lines have the same slope, our new slope will also be 8.

Given that and the point, we can solve for the equation using point-slope form.

y - y1 = m(x - x1)

y - 2 = 8(x - 5)

y - 2 = 8x - 40

y = 8x - 38

3 0

3 years ago

The cost of a daily newspaper varies from city to city. However, the variation among prices remains steady with a standard devia

My name is Ann [436]

Answer:

|t| =|-0.96|=0.96< 2.718

since calculated' t' value is less than tabulated value 't'.

we accept null hypothesis at 1 % level of significance.

The data support the claim that the mean cost of a daily news paper is $1.00

Step-by-step explanation:

Step:-(1)

Given the sample size n = 12

Given Twelve costs yield a mean cost of $0.95 with a standard deviation of $0.18

mean of the sample(x⁻) = $0.95

Standard deviation of sample (S) = $0.18

Given claim that the mean cost of a daily newspaper is $1.00.

The mean of the population 'μ' = $1.00.

Null hypothesis:-H₀:'μ' = $1.00.

Alternative hypothesis: H₁:'μ' ≠ $1.00.

level of significance ∝ = 0.01

Step2:-

The test statistic

$t = \frac{x^{-}-u_{0} }{\frac{S}{\sqrt{n} } }$

$t = \frac{0.95-1 }{\frac{0.18}{\sqrt{12} } }$

on calculation, we get

t = -0.96

|t| =|-0.96|=0.96

Degrees of freedom γ = n-1 = 12-1 =11

tₐ = 2.718

Calculated value t = 0.96

Tabulated value t at 0.01 level for 11 degrees for two tailed test = 2.718

since calculated' t' value is less than tabulated value 't'.

conclusion:-

we accept null hypothesis at 1 % level of significance.

The data support the claim that the mean cost of a daily news paper is $1.00

3 0

3 years ago