Find the area.

Your sister starts a new business selling iced tea. She borrowed money from you for the initial supplies, which cost a total of

Ivenika [448]

Answer:

Question 1 - she will make $10.50 and still owe you $5.25 because 0.35 x 30 = 10.25

question 2 - for this im not sure because the 2nd, 3rd and 4th wont work so it should be the first but I’m not sure what that equation is saying

question 3 - 29 glasses need to be sold

6 0

3 years ago

Please help (images below)

Kay [80]

Answer:

2) D

because:

$\frac{9}{1} \times 4 \\ 9 \times 4 \\ 36 \: is \: not \: equal \: to \: 4$

4) B

because:

$\frac{5}{5} \times 8 \\ 1 \times 8 \\ 8 \: is \: equal \: to \: 8$

5 0

2 years ago

Which of the following fractions is in simplest form? 9/16 8/14 6/20 15/35

disa [49]

9/16
thats the correct answer bro

3 0

4 years ago

Read 2 more answers

2) The results of a 2012 Pew Foundation survey of high school and middle school teachers is given in the pie chart. A student as

Serggg [28]

Answer:

The calculated value z = 9.4451 > 1.96 at 5% level of significance.

Null hypothesis is rejected at 5% level of significance

yes there is difference in the distribution of types of cell phones for the teachers in 2018 at a 5% level of significance

Step-by-step explanation:

Explanation:-

Step:- (1)

The results of a 2012 Pew Foundation survey of high school and middle school teachers is given in the pie chart.

A student asked a random sample of teachers in 2018 and found 165 had smart-phones, 80 had a cell phone

The first sample proportion

$p_{1} = \frac{80}{165} = 0.4848$

A student asked a random sample of teachers in 2018 and found 165 had smart-phones,5 had no cell phone

The second sample proportion

$p_{2} = \frac{5}{165} = 0.03030$

Step :-(ii)

Null hypothesis :H₀: Assume that there is no difference in the distribution of types of cell phones for the teachers in 2018

H₀ : p₁ = p₂

Alternative hypothesis :H₁

H₁ : p₁ ≠ p₂

Level of significance : ∝=0.05

The tabulated value z=1.96

Step:-(iii)

The test statistic

$Z = \frac{p_{1} -p_{2} }{\sqrt{pq(\frac{1}{n_{1} } } +\frac{1}{n_{2} } )} }$

where $p = \frac{n_{1}p_{1} +n_{2} p_{2} }{n_{1} + n_{2} }$

q = 1-p

In given data n₁ = n₂ = n

$p = \frac{165 (0.4848)+165 (0.03030 }{165 + 165}$

on calculation , we get p = 0.2655

q =1-p = 1-0.2655

q = 0.7345

$Z = \frac{0.4848 -0.030}{\sqrt{0.2655X0.7345(\frac{1}{165 } } +\frac{1}{165} )} }$

Z = 9.4451

The calculated value z = 9.4451 > 1.96 at 5% level of significance.

Conclusion:-

Null hypothesis is rejected at 5% level of significance

yes there is difference in the distribution of types of cell phones for the teachers in 2018 at a 5% level of significance

6 0

4 years ago

Jack has $25 to spend at the mall. Write an inequality that expresses symbology the amount of money, m, that jack can spend .

almond37 [142]

An inequality is basically an equation without an = sign. Instead, you use greater than [ > ] or less than [ < ], and potentially greater/less than as well as equal to. This question asks us how much money Jack can spend. Can jack spend more than $25? No. That means Jack can spend <= $25.

4 0

3 years ago