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
Snezhnost [94]
2 years ago
8

If your grade is 81.89% and you get 30% on a hw whats your grade

Mathematics
2 answers:
ss7ja [257]2 years ago
7 0

Answer:

75%

Step-by-step explanation:

zvonat [6]2 years ago
7 0

Answer:

homework is 30% of ur grade i thought it was 15%

Step-by-step explanation:

You might be interested in
Suppose JK bisects angle LJM. The measure of angle LJK = (-10x + 3) and the measure of KJM = (-x + 21)º. Find the measure of ang
SpyIntel [72]
<span>LJK = KJM -10x +3 = -x + 21 -10x + x = 21 - 3 -9x = 18 x = -2 KJM = -x + 21 = 2 + 21 = 23 LJM = LJK + KJM LJM = 23 + 23 LJM = 46º..
  
i think thats how its done </span>
7 0
3 years ago
Past experience has indicated that the breaking strength of yarn used in manufacturing drapery material is normally distributed
vlabodo [156]

Answer:

95% two-sided confidence interval on the true mean breaking strength is (94.8cm, 99.2cm)

Step-by-step explanation:

Our sample size is 11.

The first step to solve this problem is finding our degrees of freedom, that is, the sample size subtracted by 1. So

df = 11-1 = 10.

Then, we need to subtract one by the confidence level \alpha and divide by 2. So:

\frac{1-0.95}{2} = \frac{0.05}{2} = 0.025

Now, we need our answers from both steps above to find a value T in the t-distribution table. So, with 10 and 0.025 in the two-sided t-distribution table, we have T = 1.812

Now, we find the standard deviation of the sample. This is the division of the standard deviation by the square root of the sample size. So

s = \frac{4}{\sqrt{11}} = 1.2060

Now, we multiply T and s

M = Ts = 1.812*1.2060 = 2.19/tex]For the lower end of the interval, we subtract the sample mean by M. So the lower end of the interval here is[tex]L = 97 - 2.19 = 94.81 = 94.8cm

For the upper end of the interval, we add the sample mean and M. So the upper end of the interval here is

L = 97 + 2.19 = 99.19 = 99.2cm

So

95% two-sided confidence interval on the true mean breaking strength is (94.8cm, 99.2cm).

7 0
3 years ago
Simplify completely: 8x+4/x^3+23÷4x^2-10x-6/9-x^2
Helen [10]

Answer:

The simplified form is: -x^2-2x+\frac{4}{x^3}+\frac{23}{4x^2}-\frac{2}{3}

Step-by-step explanation:

To simplify the expression given we, need to open the brackets, and if there is power term. Then we need to group all the like terms and then arrange in the descending order of powers of the given expression.

Now the expression that is given to us is:

8x+\frac{4}{x^3}+\frac{23}{4x^2}-10x-\frac{6}{9}-x^2

Here we will simplify it by grouping the like terms, as follows:

8x+\frac{4}{x^3}+\frac{23}{4x^2}-10x-\frac{6}{9}-x^2\\=-x^2+8x-10x+\frac{4}{x^3}+\frac{23}{4x^2}-\frac{6}{9}=-x^2-2x+\frac{4}{x^3}+\frac{23}{4x^2}-\frac{2}{3}

So this is the required simplified form.

7 0
2 years ago
Chris is constructing a diagram for a deck he is restructuring in his backyard. The deck will be in the shape of a square, and h
cupoosta [38]

Answer:

Increase the area of the deck by 12 square feet.

Step-by-step explanation:

4 0
2 years ago
The average person blinks about 360 times in 30 minutes. About how many times does a person blink in 9 minutes?
PilotLPTM [1.2K]

360 blinks / 30 minutes = 12 blinks per minute

12 blinks per minute x 9 minutes = 108 blinks

Answer: 108

4 0
3 years ago
Read 2 more answers
Other questions:
  • Instructions: Find the Measure of the indicated angle to the<br> nearest degree.
    6·1 answer
  • Type the correct answer in each box. Round your answers to the nearest whole number. Solve this system of equations using the el
    9·1 answer
  • I need help solving this please
    7·1 answer
  • The product of 64 times 8 to the third power can be expressed as 2n. Find n.
    11·1 answer
  • Help me answer this question please
    7·1 answer
  • Please help as son as possible ​
    9·1 answer
  • . Bryon competes on the school debate team. He won 0.40 of the debates in which he participated. Which statement is not true abo
    5·1 answer
  • If a tank is losing water at a unit rate of 8/1 (gallons/hours), how many
    14·1 answer
  • A class room of 10m long and 5 m wide has two windows of size 15 mx 1 m and a door of 1.5 m ×2 m. The cost of making the 4 walls
    14·1 answer
  • Prove that: [1 + 1/tan²theta] [1 + 1/cot² thata] = 1/(sin²theta - sin⁴theta]
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!