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
sdas [7]
2 years ago
13

Please Help! Answer Number 4

Mathematics
1 answer:
faltersainse [42]2 years ago
8 0

Answer:

1485

Step-by-step explanation:

sorry if im wrong

You might be interested in
Help me asap! I will mark you brainly and a heart tysm!<br><br><br> :D
RideAnS [48]
The answer is A) -4/25 because when you multiply 8/15 and -3/10, you can simplify the expression to 4/5 times -1/5, which equals -4/25.  
7 0
3 years ago
Read 2 more answers
Refer to the diagram shown.
lions [1.4K]

Answer:

x=5

Step-by-step explanation:

According to SSS, RPS and RPQ should be similar angles. Since the length RP is the same, then RQP and RSP should be similar too. Therefore PRS and PRQ should be similar too. Since QP and RS are the same (7) then QR and PS needs to be same in length too.

2x+3 = 4x-7

10 = 2x

x=5

5 0
3 years ago
Read 2 more answers
(a2 − 6) and (a2 + 4) are the factors of
sleet_krkn [62]
(a²-6)(a²-4) simplify

a⁴-4a²-6a²+24

Combine like terms

a⁴-10a²+24
8 0
3 years ago
I WILL GIVE BRAINLIEST
AlexFokin [52]

Answer:

B

Step-by-step explanation:

too easy

6 0
2 years ago
Read 2 more answers
2 Probability and Stats questions!!
mart [117]
 1) To find the confidence interval 
the sample mean x = 38     σ = 9; n = 85;
The confidence level is 95% (CL = 0.95) <span>CL = 0.95
so α = 1 – CL = 0.05   
</span><span>α/2 = 0.025   </span>Z(α/2) = z0.025  
The area to the right of Z0.025 is 0.025 and the area to the left of Z0.025 is 1 – 0.025 = 0.975
Z(α/2) = z0.025 = 1.645 This can be found using a computer, or using a probability table for the standard normal distribution.
<span>EBM = (1.645)*(9)/(85^0.5)=1.6058</span> x - EBM = 38 – 1.6058 = 36.3941 <span> x + EBM = 38 + 1.6058 = 39.6058
</span>The 95% confidence interval is (36.3941, 39.6058).
The answer is the letter D
<span>The value of 40.2 is <span>within the 95% confidence interval for the mean of the sample

</span></span>2) To find the confidence interval  <span>
<span>the sample mean x = </span>76     σ = 20; n = 102; </span><span>
The confidence level is 95% (CL = 0.95) CL = 0.95 
so α = 1 – CL = 0.05   
α/2 = 0.025   Z(α/2) = z0.025 
The area to the right of Z0.025 is 0.025 and the area to the left of Z0.025 is 1 – 0.025 = 0.975 
Z(α/2) = z0.025 = 1.645 This can be found using a computer, or using a probability table for the standard normal distribution.
EBM = (1.645)*(20)/(102^0.5)=3.2575 x - EBM = 76 – 3.2575 = 72.7424 </span>  x + EBM = 76 + 3.2575 = 79.2575 <span> 
The 95% confidence interval is (</span>72.7424 ,79.2575).<span>
The answer is the letter </span>A and the letter D<span>
The value of 71.8 and 79.8 <span> are </span> outside<span> the 95% confidence interval for the mean of the sample</span></span>
5 0
3 years ago
Other questions:
  • Jesse went to the post
    13·1 answer
  • Ax+7=8x+b, x=9 What is the value for a and b
    14·1 answer
  • If one postage stamp costs $0.85, how<br> much does a book of 25 stamps cost?
    5·2 answers
  • Ok heres the first one
    5·2 answers
  • What is 12/25 as a percent
    13·2 answers
  • there are 24 students in a class.8 of the students are boys.write the amount of boys in the class as a fraction in its simplest
    7·2 answers
  • Express 245 as a product of its prime factors
    13·1 answer
  • Find the equation of the line that goes through points (3,2) and has a slope of -3/2
    13·1 answer
  • The following two triangles are similar. Find x.
    8·1 answer
  • Melanie uses 8.1 pints of blue paint and white paint to paint her bedroom walls. 2/5 of this amount is blue paint, and the rest
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!