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
Ksenya-84 [330]
2 years ago
9

Can you pls help me with this question?

Mathematics
1 answer:
8090 [49]2 years ago
4 0

Answer:

heyyyyy  so basically the answers would be 8 and 5 on the first and 2nd one Im thinking ...

Step-by-step explanation:

You might be interested in
Solve the equation using the quadratic formula : x^2-10x+25=18
Sever21 [200]
x^2-10x+25=18 \\ \\x^2-10x+25-18 = 0\\ \\ x^2-10x+ 7 =0 \\ \\a=1 , b = -10 , c= 7 \\ \\ \Delta = b^{2}-4ac = (-10)^{2}-4*1*7=100-28 = 72 \\ \\\sqrt{\Delta }=\sqrt{72}= \sqrt{2*36} =\sqrt{36}*\sqrt{2} =6\sqrt{2}

x_{1}=\frac{-b-\sqrt{\Delta }}{2a} =\frac{10- 6\sqrt{2}}{2}=\frac{2(5-3\sqrt{2})}{2}= 5-3\sqrt{2}\\ \\x_{2}=\frac{-b+\sqrt{\Delta }}{2a} =\frac{10+ 6\sqrt{2}}{2}=\frac{2(5+3\sqrt{2})}{2}= 5+3\sqrt{2}


Answer : \ x= 5-3\sqrt{2} \ \ or \ \ x = 5+3\sqrt{2}


8 0
3 years ago
Do the rays BA and AB define the same ray? In complete sentences, explain why the two rays are the same or why the two rays are
Deffense [45]
Rays are named according to their endpoints, the first one named is the "starting" endpoint, the second one is the one that will continue on into infinity.  Therefore, ray BA has a terminal endpoint at B and goes through point A into infinity.  Ray AB has a terminal endpoint at A and goes through point B into infinity.  Definitely NOT the same ray. 
7 0
3 years ago
In the figure angle B= angle D. AB=40, AC=35, BC=25, CE=28. Find ED to the nearest whole number. ( see image )
swat32

Answer:

i believe the answer is D

Step-by-step explanation:

im not entirely sure but that's what i got.

5 0
3 years ago
Nadia took a math test that had 20 questions. Each question was worth five points. If Nadia answered 85 percent of the questions
Sunny_sXe [5.5K]
Nadia got 17 questions out of the 20
8 0
3 years ago
Read 2 more answers
In a random sample of 74 women at a company, the mean salary is $39,902 with a standard deviation of $3270 in a random sample of
ValentinkaMS [17]
The correct answer is the first choice, ($1818.30, $5077.70.)

To find this, we first find the z-score based on the confidence level:
Convert 95% to a decimal:  95%=95/100 = 0.95
Subtract from 1:  1-0.95 = 0.05
Divide by 2:  0.05/2 = 0.025
Subtract from 1:  1-0.025 = 0.975

Using a z-table (http://www.z-table.com) we see that this value is associated with a z-score of 1.96.

Next, we identify 
\overline{x_1}=39902; \overline{x_2}=36454; n_1=74; n_2=40; \sigma_1=3270; \sigma_2=4677

Next we find
(\overline{x_1}-\overline{x_2})=(39902-36454) = 3448

Next we find 
\sqrt{\frac{\sigma_1^2}{n_1}+\frac{\sigma_2^2}{n_2}}
\\
\\=\sqrt{\frac{3270^2}{74}+\frac{4677^2}{40}}=\sqrt{\frac{10692900}{74}+\frac{21874329}{40}}
\\
\\=831.479

Next, we multiply this value by z:
1.96(831.479) = 1629.70

The confidence interval is given by
3448\pm1629.70
\\
\\=(3448-1629.70, 3448+1629.70)
\\
\\=(1818.30, 5077.70)
5 0
3 years ago
Other questions:
  • 6. Suppose that a fair coin is tossed 2 times, and the result of each toss (H or T) is recorded.
    14·1 answer
  • Gas mileage is the number of miles you can drive on a gallon of gasoline. A test of a new car results in 440 miles on10 gallons
    15·1 answer
  • suppose two different fractions with the same denominators are both less than 1 Can their sum equal 1? can their sum be greater
    11·1 answer
  • Suppose there is a 20% chance that revenue will exceed expectations, a 10% chance that costs will be lower than expected, and a
    10·1 answer
  • Can somebody please help with this? ​
    12·1 answer
  • If 3 pounds of apples cost $3.85, how much will 18<br> pounds of apples cost?
    5·1 answer
  • Please help due in 10 minutes
    11·2 answers
  • If a map key says that 1" = 12 miles, how many miles are represented by 3.2"?
    10·1 answer
  • A partnership had its agreement drawn up by a lawyer. The company made $350,000 in profit at the end of the year. The
    15·1 answer
  • 26. Students who take a statistics course are given a pre-test on the concepts and skills for the first chapter of a statistics
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!