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
Komok [63]
3 years ago
6

15 1/2 - 13 5/4= please answer i really need help :(

Mathematics
1 answer:
Kaylis [27]3 years ago
4 0

Answer:

i believe its 1.25

Step-by-step explanation:

I HOPE THIS HELPS GOOD LUCK

You might be interested in
About 16 % of the population of a large country is allergic to pollen. If two people are randomly selected, what is the probabil
Vinvika [58]

Answer:

(a) 0.0256

(b) 0.2944

Step-by-step explanation:

For solving this exercise we can apply the binomial distribution. The equation that give as the probability is:

P(x,n,p)=(nCx)*p^{x} *(1-p)^{n-x}

Where n is the number of identical events, p is the probability that the event has a success and x is the number of success in the n identical events.

Additionally, nCx is calculated as:

nCx=\frac{n!}{x!(n-x)!}

So, in this case we have 2 identical events because we are going to select two people randomly and the probability p of success is the probability that the person is allergic to pollen and this probability is 16%.

Then, for the first case, x is 2 because their are asking for the probability that both are allergic to pollen. Replacing the values of x, n and p we get:

P(2,2,0.16)=(2C2)*0.16^{2} *(1-0.16)^{2-2}

P(2,2,0.16)=0.0256

For the second case, their are asking for the probability that at least one is allergic to pollen, that means that we need to sum the probability that both are allergic to pollen with the probability that just one is allergic to pollen.

Using the same equation to calculate P(1,2,0.16) we get:

P(1,2,0.16)=(2C1)*0.16^{1} *(1-0.16)^{2-1}

P(1,2,0.16)=0.2688

So, the probability that at least one person is allergic to pollen is 0.2944 and it is calculated as:

0.0256 + 0.2688 = 0.2944

7 0
3 years ago
Tom plants 3 seeds.
Rasek [7]

Answer:

A. 64/125

B. 124/125.

Step-by-step explanation:

A).  As the events ( germinate or not germinate) are independent we multiply the probabilities.

Prob(All seeds germinate) = 4/5*4/5*4/5 =  64/125.

B). Probability of at least one germinating =  1 - probability that none germinate

Probability of  1 seed not germinating = 1 -45 = 1/5.

So Prob(at least one germinating)

= 1 - (1/5 * 1/5 * 1/5)

= 1 - 1/125

= 124/125.

5 0
3 years ago
Please help me out with this!
olganol [36]
A. y-intercept

B. The slope is 3/4, the y-intercept is 0

C. For this one you need to put it in y-intercept form. So, you subtract 2x, and move it over to 12. The equation would look like 6y = 2x + 12.

Then, divide everything by 6, and the equation would look like: y = 2/6x + 2

Thus, the slope is 2/6x and 2 is the y-intercept.
3 0
2 years ago
A conjecture and the flowchart proof used to prove the conjecture are shown.
dexar [7]
Okay. An obtuse triangle is any triangle that has 1 angle that measures more than 90°. As we can see, angle QRS measures 76° and angle PRQ measures 104°. 104 > 90. Triangle PQR is a closed figure, and a triangle measures 180° total. There can only be 1 obtuse angle in any triangle. PRQ is an obtuse angle. Therefore, triangle PQR is an obtuse triangle.

8 0
2 years ago
Read 2 more answers
Please help i am giving away brainiliest
Ede4ka [16]

Answer: b is the answer

Step-by-step explanation: have a nice day

3 0
2 years ago
Other questions:
  • The GCF of 12 and 30
    5·2 answers
  • How would you find the values of x and y?
    9·1 answer
  • I NEED HELP ASAP :(
    15·1 answer
  • Mary invested $5000 in the bank. How much money does she have at the end of 15 years if the interest rate is 4.5% per annum ? A
    14·1 answer
  • Domain of (1)/(x^(2)+5x)
    14·1 answer
  • Can someone please help me!! Ive been asking for help and I not getting any.. please help
    15·1 answer
  • PLEASE ANSWER THIS IN 30 MINUTES ILL GIVE YOU 30
    7·1 answer
  • 3. Fill in the missing number: (6) (___) = 1<br> a. 6<br> b. -6<br> c. 0<br> d. 1/6
    7·2 answers
  • Please help!!!! Your helping would be great!​
    14·1 answer
  • What is the y-intercept of this quadratic function f(I)=-i2+10i-22
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!