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Nutka1998 [239]

3 years ago

13

The empire state building weighs about 7.3 ×10⁸ the one world trade center bulding weighs about 88,200, 000 pounds. What is the

total weight, in pounds, of these two? Express your answer in scientific natation in form a×10^b, what are the values of the a and b?

1 answer:

Vesnalui [34]3 years ago

5 0

A is 8.82 and b is 7

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ALSO THIS ONE PLEASE I WILL MARK AS BRAINLIEST

kupik [55]

Answer:

11 c; 12 c; 13 b

Step-by-step explanation:

Question 11

$\text{Volume} = \text{4 doses} \times \dfrac{\text{2 T}}{\text{1 dose}}\times \dfrac{\text{15 mL}}{\text{1 T}} = \textbf{120 mL}$

Question 12

(a) Add up the total fluid ounces

$\begin{array}{rr}\textbf{Liquid} & \textbf{V/oz} \\\text{Juice} & 6 \\\text{Water} & 4 \\\text{Soda} & 8 \\\text{Coffee} & 10 \\\text{Milk} & 6 \\\text{Total fluids} & 34 \\\end{array}$

(b) Convert fluid ounces to millilitres

$\text{Volume} = \text{34 oz} \times \dfrac{\text{15 mL}}{\text{1 oz }} = \textbf{510 mL}$

Question 13

1 L =10 dL

$\text{Volume} = \text{80 dL} \times \dfrac{\text{1 L}}{\text{10 dL}} = \textbf{8.0 L}$

6 0

2 years ago

a total of 17,100 seats are available for the next hockey game. If 62% of the tickets have been sold how many seats are in the a

RideAnS [48]

A(100-62)/100=17100 multiply both sides by 100

a(100-62)=1710000 combine like terms on left side

38a=1710000 divide both sides by 38

a=45000

So the arena has a total of 45000 seats.

6 0

3 years ago

A random sample of 64 bags of white cheddar popcorn weighed, on average, 5.23 ounces with a standard deviation of 0.24 ounce.

emmasim [6.3K]

Answer:

We conclude that cheddar popcorn weighed less than 5.5 ounces.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ =5.5 ounces

Sample mean, $\bar{x}$ = 5.23 ounces

Sample size, n = 64

Alpha, α = 0.05

Sample standard deviation, σ = 0.24 ounce.

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 5.5\text{ ounces}\\H_A: \mu < 5.5\text{ ounces}$

We use One-tailed z test to perform this hypothesis.

Formula:

$z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{s}{\sqrt{n}} }$

Putting all the values, we have

$z_{stat} = \displaystyle\frac{5.23 - 5.5}{\frac{0.24}{\sqrt{64}} } = -9$

Now, $z_{critical} \text{ at 0.05 level of significance } =-1.645$

Since,

$z_{stat} < z_{critical}$

We reject the null hypothesis and accept the alternate hypothesis. Thus, we conclude that cheddar popcorn weighed less than 5.5 ounces.

3 0

3 years ago

If the Knicks win 5 games for every 2 they lose, then how many wins would they have if they played a total of 84 games?

Olenka [21]

Answer:90

Step-by-step explanation:

7 0

2 years ago

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If Oni uses all 3 of the $0.44 cent stamps he has, what

Rom4ik [11]

Answer: b

Step-by-step explanation: edge 2020

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2 years ago