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
irina1246 [14]
3 years ago
15

Solve for d. 13d + 4 = 43 A.3 B.13 C.39 D.None of the above

Mathematics
2 answers:
sergejj [24]3 years ago
6 0
Answer is A
Because 43-4=39
39/13=3
Vlad [161]3 years ago
6 0
A because 13 times 3 is 39 plus 4 is 43
You might be interested in
At first public inquiry showed there were 637000 women motorcyclists in the US up from 437000 just 8 years ago before it. Find t
dimaraw [331]
I would say to do 637000-437000, which is 200000, and then do 200000/637000. You get 0.314, and the percentage of that in hundreds is 31%. 
6 0
3 years ago
Micah went to the grocery store the other day and there were no price tags on anything! She bought 3 loaves of bread and 1 milk
NARA [144]

Answer:

$2.75

Step-by-step explanation:

We know that the random persons total was $5.50. To figure out how much one loaf of bread costs we must first, divide $5.50 by 2. We get 2.75. Then, to double check our answer we multiply that by 3 to get 8.25. We know that Micah' s total was $9.00. 9 minus 8.25 equals 0.75.

That price is very reasonable, for a jug of milk, so we know that $2.75 is the answer.

<em>Hope this helped</em><em> </em><em> </em><em>:</em><em>)</em>

6 0
3 years ago
What is the answer to the problem y-4=x
Nataly [62]

Answer:

y=x+4

Step-by-step explanation:

y-4=x

y=x+4

4 0
3 years ago
Read 2 more answers
URGENT: statistics: A researcher wishes to estimate the percentage of adults who support abolishing the penny what size sample s
irina1246 [14]

Using the margin of error for the z-distribution, the sample sizes are given as follows:

a) 822.

b) 1068.

<h3>What is a confidence interval of proportions?</h3>

A confidence interval of proportions is given by:

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

The margin of error is given by:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

In which:

  • \pi is the sample proportion.
  • z is the critical value.
  • n is the sample size.

We have a 95% confidence level, hence\alpha = 0.95, z is the value of Z that has a p-value of \frac{1+0.95}{2} = 0.975, so the critical value is z = 1.96.

Item a:

The estimate is of \pi = 0.26, hence we solve for n when M = 0.03.

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

0.03 = 1.96\sqrt{\frac{0.26(0.74)}{n}}

0.03\sqrt{n} = 1.96\sqrt{0.26(0.74)}

\sqrt{n} = \frac{1.96\sqrt{0.26(0.74)}}{0.03}

(\sqrt{n})^2 = \left(\frac{1.96\sqrt{0.26(0.74)}}{0.03}\right)^2

n = 821.2

A sample of 822 is needed.

Item b:

No prior estimate, hence \pi = 0.5.

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

0.03 = 1.96\sqrt{\frac{0.5(0.5)}{n}}

0.03\sqrt{n} = 1.96\sqrt{0.5(0.5)}

\sqrt{n} = \frac{1.96\sqrt{0.5(0.5)}}{0.03}

(\sqrt{n})^2 = \left(\frac{1.96\sqrt{0.5(0.5)}}{0.03}\right)^2

n = 1067.11

A sample of 1068 is needed.

More can be learned about the z-distribution at brainly.com/question/25890103

#SPJ1

4 0
2 years ago
-6.59 written as a fraction is____.
shusha [124]

When it is written as a fraction it is 659/100

8 0
3 years ago
Read 2 more answers
Other questions:
  • Choose the best definition for the following phrase: combining like terms
    12·1 answer
  • fred's auto sales purchases 3 new vehicles for $11,219, $31,611, and $18,204. what was the total cost for all the vehicles?
    15·1 answer
  • Which of the following obtains data from a subset of a population to evaluate traits of the population?
    14·1 answer
  • PLZ HELP PLZ
    15·2 answers
  • Your bill at a restaurant is $35.00. There is an 8% meals tax (sales tax). How much is the tax? You want to leave a 20% tip. You
    11·1 answer
  • You are building a curio cabinet in the form of a rectangular prism that must be 4 feet tall with a volume of 48 cubic feet. The
    5·1 answer
  • Use the distributive property to write an equivalent expression. (6+8)⋅x
    10·2 answers
  • PLZ HELP!!
    14·1 answer
  • Which polynomial is equivalent to (y+10)^2?
    14·1 answer
  • -2-(-5) = -2 + (-5)<br> 2- =
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!