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
Gala2k [10]
2 years ago
11

Please Help me and answer quickly

Mathematics
1 answer:
Lorico [155]2 years ago
4 0

Answer:

300 i think hope it helps

You might be interested in
Describe how you would find the sum of 24,36and 13
Oksi-84 [34.3K]
I would add them together to get 73

Step-wise I would add the ones column together to get 13, carry the one over then add the tens up to get 70 - your answer is 73
3 0
3 years ago
Read 2 more answers
Which line represents a proportional relationship?
bazaltina [42]

What line? I can't see any image.

3 0
3 years ago
-70y^2+90x^3+100yx^2-63xy<br>factor by grouping
Alexeev081 [22]
The idea of grouping is to get the terms in groups that allow you to factor out from each group something that becomes a factor in itself, leaving two factors behind that are alike. Like this: rearrange those terms so they are in this order:
(-70y^2 - 63xy) + (90x^3 + 100yx^2).  Now out of the first set we are going to factor out a -7y, and out of the second set we are going to factor out a 10x^2. When we do this, this is what we get: -7y(10y + 9x) + 10x^2(9x + 10y). As you can see, what's inside both sets of parenthesis is the same, just in a different order. We can factor that out now, leaving (9x + 10y)(10x^2 - 7y). And that is factored by grouping.
4 0
3 years ago
The mean incubation time of fertilized eggs is 21 days. Suppose the incubation times are approximately normally distributed with
Korvikt [17]

Answer:

a) 20.16; b) 20.49 and 21.51

Step-by-step explanation:

We use z scores for each of these.  The formula for a z score is

z=\frac{X-\mu}{\sigma}.

For part a, we want the 20th percentile; this means we want 20% of the data to be lower than this. We find the value in the cells of the z table that are the closest to 0.20 as we can get; this is 0.2005, which corresponds with a z score of -0.84.

Using this, 21 as the mean and 1 as the standard deviation,

-0.84 = (X-21)/1

-0.84 = X-21

Add 21 to each side:

-0.84+21 = X-21+21

20.16 = X

For part b, we want the middle 39%.  This means we want 39/2 = 19.5% above the mean and 19.5% below the mean; this means we want

50-19.5 = 30.5% = 0.305 and

50+19.5 = 69.5% = 0.695.

Looking these values up in the cells of the z table, we find those exact values; 0.305 corresponds with z = -0.51 and 0.695 corresponds with z = 0.51:

-0.51 = (X-21)/1

-0.51 = X-21

Add 21 to each side:

-0.51+21 = X-21+21

20.49 = X

0.51 = (X-21)/1

0.51 = X-21

Add 21 to each side:

0.51+21 = X-21+21

21.51 = X

4 0
3 years ago
If a b and m∠2 = 71°, what is m∠1?
Nikolay [14]

Answer:

  71°

Step-by-step explanation:

In order to be able to solve this problem, we must assume the relation between lines "a" and "b" is that they are parallel.

If a║b, then ∠1 and ∠2 are corresponding, hence congruent.

  m∠1 = m∠2 = 71°

8 0
3 years ago
Other questions:
  • Y = 9/7x + 8/5<br><br> Find the y-intercept and simplify it.
    8·1 answer
  • The following diagram shows the path of a planet around the Sun. Kepler discovered that _____.
    6·2 answers
  • last summer at camp fun okey there boys and girls the ratio is 5:7 if there were a total of 195 campers how many girls and boys
    15·1 answer
  • Nora's paper airplane flew 9 1/6 feet. That was 2 3/4 feet farther than Max's plane flew. Write and solve an equation to show ho
    14·1 answer
  • A cone of base 10 cm^2 and a height of 60 cm has what volume?
    6·1 answer
  • This is decimals whats the answer Which numbers will round to 19 when they are rounded to the nearest whole number? Select each
    12·2 answers
  • Find the equation of the line that is parallel to y= -7x + 2 and contains the point (-5 , 32). Use the equation y = ____x. + ___
    7·2 answers
  • 4/5 of the senior class went to prom if 324 seniors went to prom how many are there in the senior class
    5·1 answer
  • HELPLWMSMQMAMA????? a girl is struggling
    9·2 answers
  • Quadrilateral A’B’ C’ D ‘ is the result of reflecting quadrilateral ABCD across line l
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!