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3 years ago

For each pair of jeans i will buy 3 sweaters. how many sweaters can i buy if i have $255

Mathematics

1 answer:

Zepler [3.9K]3 years ago

7 0

You can buy 85 sweaters. Plze mark me brainiest:)

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A carpenter is making doors that are 2058 millimeters tall. If the doors are too long they must be trimmed, and if they are too

k0ka [10]

Answer:

There is no evidence that the doors are too long and need to be trimmed (H₀ is accepted)

Step-by-step explanation:

$\bar{X} = 2072\\\mu = 2058\\sample size, n = 6\\\alpha = 0.01\\Standard deviation, s = 27$

The null hypothesis, $H_o: \mu = 2058$

Alternative hypothesis, $H_{a}: \mu > 2058$

Test statistic is calculated as follows:

$Z_{test} = \frac{\bar{X} - \mu}{s/\sqrt{n} } \\Z_{test} = \frac{2072 - 2058}{27/\sqrt{6} } \\Z_{test} =1.27$

Find the P-value

P(z > 1.27) = 1 - P(z < 1.27)

P(z > 1.27) = 1 - 0.898

P(z > 1.27) = 0.102

Significance level, α = 0.01

Since P - value(0.102) is greater than α (0.01), the null hypothesis will be accepted.

8 0

3 years ago

Ashanti bought seven boxes to pack all the junkie stuff in her room. A week later half of all her boxes were destroyed in a fire

8_murik_8 [283]

Answer:

the aswer is 154

Step-by-step explanation:

multiple

6 0

3 years ago

Read 2 more answers

Find the area of the kite p=17 q =15.3

Semenov [28]

Answer:

$\large\boxed{A=130.05}$

Step-by-step explanation:

The formula of an area of a kite:

$A=\dfrac{pq}{2}$

p, q - diagonals

We have p = 17 and q = 15.3. Substitute:

$A=\dfrac{(17)(15.3)}{2}=\dfrac{260.1}{2}=130.05$

3 0

3 years ago

116Mixed Practice #91.Write the area of the largest figure using two differentexpressions. All four-sided figures are rectangles

Scrat [10]

We are given:

The largest rectangle has 3 rectangles:

Rectangle 1 has a length of x & a width of 5

Rectangle 2 has a length of 2y & a width of 5

Rectangle 3 has a length of 3 & a width of 5

The area is given by:

$\begin{gathered} A=l\times w \\ A=x\cdot5+2y\cdot5+3\cdot5 \\ A=5x+10y+15 \\ \\ \therefore Area=5x+10y+15 \end{gathered}$

$\begin{gathered} Area=length\times width \\ Area=5(x+2y+3) \\ \\ \therefore Area=5(x+2y+3) \end{gathered}$

4 0

1 year ago

A Line passes through the point (-1,-2) and is perpendicular to the line with the equation y= -x - 1 what’s the equation of the

Allisa [31]

Answer:

y = x - 1

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = - x - 1 ← is in slope- intercept form

with slope m = - 1

Given a line with slope m then the slope of a line perpendicular to it is

$m_{perpendicular}$ = - $\frac{1}{m}$ = - $\frac{1}{-1}$ = 1, thus

y = x + c ← is the partial equation of the perpendicular line

To find c substitute (- 1, - 2) into the partial equation

- 2 = - 1 + c ⇒ c = - 2 + 1 = - 1

y = x - 1 ← equation of perpendicular line

7 0

3 years ago

For each pair of jeans i will buy 3 sweaters. how many sweaters can i buy if i have $255​

For each pair of jeans i will buy 3 sweaters. how many sweaters can i buy if i have $255