1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Andreyy89
2 years ago
7

8 + (9 + 23) − 9 + 8 × 6 ÷ 3 = ​

Mathematics
1 answer:
finlep [7]2 years ago
3 0

Answer:

47

Step-by-step explanation:

follow Pemdas order of operations.

8 + (9 + 23) − 9 + 8 × 6 ÷ 3 = ​

8 + (32) - 9 + 8 x 6 ÷ 3

8 + (32) - 9 + 16

add and subtract the rest and u get 47

You might be interested in
Big babies: The National Health Statistics Reports described a study in which a sample of 354 one-year-old baby boys were weighe
Vedmedyk [2.9K]

Answer:

Yes. The data provide enough evidence to support the claim that the mean weight of one-year-old boys is greater than 25 pounds.

P-value=P(t>2.84)=0.0024

Step-by-step explanation:

Hypothesis test on the population mean.

The claim is that the mean weight of one-year-old boys is greater than 25 pounds.

Then, the null and alternative hypothesis are:

H_0: \mu=25\\\\H_a:\mu>25

The significance level is α=0.05.

The sample size is n=354. The sample mean is 25.8 pounds and the sample standard deviation is 5.3 pounds. As the population standard deviation is estimated from the sample standard deviation, we will use a t-statistic.

The degrees of freedom are:

df=n-1=354-1=353

The t-statistic is:

t=\dfrac{\bar x-\mu}{s/\sqrt{n}}=\dfrac{25.8-25}{5.3/\sqrt{354}}=\dfrac{0.8}{0.2817}=2.84

For a right tailed test and 353 degrees of freedom, the P-value is:

P-value=P(t>2.84)=0.0024

As the P-value is smaller than the significance level, the effect is significant and the null hypothesis is rejected.

There is enough evidence to support the claim that the mean weight of one-year-old boys is greater than 25 pounds.

7 0
3 years ago
If Owen and Eliza had a combined taxable income of $68,200 and filed their federal income tax return with the Married Filing Joi
tangare [24]

Answer:

9425

D

Step-by-step explanation:

They are in the third tax bracket down. That means that their joint income is over 67900 but less than 137050.

The base rate is 9350. But they are 68200 - 67900 = 300  over the minimum.

So 25% of that 300 is also to be paid to the government 25/100 * 300 = 75 dollars

Now they must pay 9350 + 75 = 9425

Answer D


7 0
3 years ago
Read 2 more answers
57.33 is 80% of what number?
Leni [432]
45.864, because 57.33 divided by 100 is 0.5733 that multiplied by 80 is 45.864
4 0
3 years ago
The bird feeder on a pole measures +6 feet and there is a buried treasure chest at -4 feet. 0 is ground level. Determine which i
Strike441 [17]

the answer is 4

just think of -4 as 4 in this question it is looking for the one closer and now that both of them are counting numbers 4 is less

4 0
3 years ago
Read 2 more answers
29.5 divided by four
posledela
The answer is 7.375
4 0
3 years ago
Read 2 more answers
Other questions:
  • You have a bag full of letters and they spell SUMMER what is the probability of grabbing an m?
    10·1 answer
  • The manager at Gabriel's Furniture Store is trying to figure out how much to charge for a bookshelf that just arrived. The books
    7·1 answer
  • Tony has $20. He wants to buy at least 4
    7·1 answer
  • The area of trapezium is 352 cm2. The distance between the parallel
    12·1 answer
  • Solve the following equation
    14·1 answer
  • D/3 is equal to or less than 2...solve for d​
    5·1 answer
  • Which facts are true for the graph of the function below? Check all that apply.
    13·1 answer
  • If the length of the building is 86 meters and it's height is 55 meters what is the area of his face of the building?
    5·1 answer
  • F(1) =3 and f (n+1)= f(n)^2+3 then find the value of f(4)
    9·1 answer
  • Jessica's dog weighed 91.5 pounds at the beginning of summer but lost 5.2
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!