All categories

3 years ago

Question 7 of 10

Mathematics

1 answer:

sertanlavr [38]3 years ago

4 0

I think it’s b yes it’s right

You might be interested in

Find the volume of each square pyramid given its slant height. Round to the nearest tenth. It looks like a normal pyramid with a

Luden [163]

Answer:

1.344 cubic units

Step-by-step explanation:

Given data

Base edge a= 1.2

Hieght= 2.8

The expression for the volume of a pyramid is

V= a^2h/3

substitute

V= 1.2^2* 2.8/3

V= 1.44*2.8/3

V= 4.032/3

V= 1.34cubic units

5 0

3 years ago

What is the slope for (6,2) (9,8)

fredd [130]

Answer:

3/6

Step-by-step explanation:

The slope is how one number gets to the next, in this instance we have point (6,2) at x=6 y=2 to get from there to the next point x=9 y=8 we would have to count up three and over six. Therefore, the answer is 3/6.

Hope this helps!

5 0

3 years ago

Simplify this expression

luda_lava [24]

7 and 21 can cancel leaving a 3 on the bottom. one m can cancel from the bottom and the top so that leaves you with m^3 n^4/3

4 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

X to the 5th power and y to the 6th power over xy to the 2nd power

never [62]

$\frac{x^5y^6}{(xy)^2}$

$\frac{x^5y^6}{x^2y^2}$

$x^{5-2}y^{6-2}$

$x^3y^4$

6 0

4 years ago