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
alexgriva [62]
2 years ago
14

Which of the following is true about the US federal government’s ability to borrow money

Mathematics
1 answer:
Anni [7]2 years ago
7 0
It to blurry barely could send it
You might be interested in
Suppose that prior to conducting a coin-flipping experiment, we suspect that the coin is fair. How many times would we have to f
STALIN [3.7K]

Answer:  b) 84

Step-by-step explanation:

Let p be the prior estimate of the required proportion.

As per given , we have

p =0.5   (The probability of getting heads on a fair coin is 0.5)

Significance level : \alpha: 1-0.90=0.10\\

Critical z-value (using z-value table ) : z_{\alpha/2}=1.645

Confidence interval width : w= 0.18

Thus , the margin of error : E=\dfrac{w}{2}=0.09

Formula to find the sample size ( if prior estimate of proportion is known.):-

n=p(1-p)(\dfrac{z_{\alpha/2}}{E})^2

Substitute the values , we get

n=0.5(1-0.5)(\dfrac{1.645}{0.09})^2

Simplify ,

n=83.5192901235\approx84  [Round of to the next whole number.]

Hence, the number of times we would have to flip the coin =<u>84</u>

hence, the correct answer is b) 84

8 0
3 years ago
Tamara paid $3.00 for cartons of milk. Teo paid $3.75 for a different number of cartons at the same store. How much is one carto
Rashid [163]
1- Price of each carton:
Since they both bought different number of cartons of milk from the same store, we can simply find the price of one carton from the difference between what they both paid.

Since Tamara paid 3$ and Toe paid 3.75$, we can simply say that one carton of milk costs 0.75$ and that Toe bought one carton more than Tamra.

2- How many cartons each bought:
Tamra bought : 3 / 0.75 = 4 cartons
Toe bought : 3.75 / 0.75 = 5 cartons
3 0
3 years ago
the ratio of pink marbles to white marbles in Samaras bag is equal to 1:5. what percent of the bag contains pink marble
kenny6666 [7]
1:5= 1/5 x 20/20= 20/100

20/100= 0.20

The bag contains 20% of pink marbles.
3 0
3 years ago
The ratio of boys to girls in a group is 5:3. If there are 18 more boys than girls, work out how
zmey [24]
<h3>Answer:  72 people total</h3>

45 boys, 27 girls

============================================================

Explanation:

g = number of girls

g+18 = number of boys, since there are 18 more boys than girls

For example, if g = 7, then g+18 = 7+18 = 25. In this example, we have 7 girls and 25 boys. The problem with this example is the ratio of boys to girls is 25:7 which is not equal to 5:3

We could use trial and error until we land on the solution, or we can use algebra as shown in the next section.

-------------------

The ratio of boys to girls is 5:3, meaning

(number of boys)/(number of girls) = 5/3

which turns into

(g+18)/g = 5/3

after we make the proper substitutions

Let's solve for g

(g+18)/g = 5/3

3(g+18) = 5g

3g+54 = 5g

54 = 5g-3g

54 = 2g

2g = 54

g = 54/2

g = 27

There are 27 girls.

This leads to,

g+18 = 27+18 = 45

So there are 45 boys

In total, we have 27+45 = 72 people

-----------------------------

Checking the answer:

The claim is that 45/27 is the same as 5/3

For now assume that claim is true. Set the fractions equal to each other and use cross multiplication like so

45/27 = 5/3

45*3 = 27*5

135 = 135

The third equation has the same thing on both sides, so it's a true equation. This must mean the first equation is true as well. Therefore, 45:27 and 5:3 are the same ratio and the answer is confirmed.

You could also use your calculator to note that

45/27 = 1.667

5/3 = 1.667

both decimal values are approximate.

8 0
3 years ago
Which expression is a polynomial
patriot [66]

Answer:

4x^3-2x^2+5x-6+\frac{1}{x} is a polynomial

Step-by-step explanation:

a polynomial is a set of numbers with multiple terms that are not simplify able

9x^7y^{-3} z is not a polynomial because its actually one term, there is no addition/subtraction of different terms.

-13 is a single number, so not a polynomial

13x^-2 is also a single number, not a polynomial

8 0
2 years ago
Other questions:
  • Consider:
    6·2 answers
  • How can we use a graph to tell that two populations are equal?
    7·1 answer
  • (5.67x - 8.16)+(3.6x + 9.2)<br> you dont have to find x you only have to simplify it
    5·1 answer
  • Aaden wants to get a subscription to an online library. There are two subscription options, one of which charges a fixed 96 doll
    15·1 answer
  • Which statement regarding the diagram is true?
    15·1 answer
  • If your teacher shows a video from a website in class it is a copyright violation.
    9·2 answers
  • HELP PLZ
    10·1 answer
  • Guys i need help with this math question anyone help plzz???
    5·1 answer
  • MathWiz wya? I need some help with this...show your work &lt;3
    13·1 answer
  • Fill in the blank to make equivalent rational expressions.<br> 2/y^2=_/3y^5
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!