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
Andrews [41]
3 years ago
15

A rectangle is inscribed with its base on the x-axis and its upper corners on the parabola y = 7 − x 2 y=7-x2. what are the dime

nsions of such a rectangle with the greatest possible area?

Mathematics
1 answer:
slega [8]3 years ago
5 0
A rectangle is inscribed with its base on the x-axis and its upper corners on the parabola y = 7 − x 2 y=7-x2. what are the dimensions of such a rectangle with the greatest possible area?

You might be interested in
When Joseph finished packing his backpack, it had a mass of 5 kilograms. What was the mass of the backpack in grams
worty [1.4K]
There is 1000 grams in a kilogram so he had a mass of 5,000 grames in his bag
7 0
3 years ago
A salt modure has 7 parts water and 1 part salt Suppose another part of salt is added What is the new ratio of salt
Sunny_sXe [5.5K]

Answer:

14:2 - 14 parts water and 2 parts salt

Step-by-step explanation:

The original ratio was 7:1. So, that means if you added another part to the salt it would make 2. That means that the 7 parts of water would become 14 parts. Since the ratio of the salt part was doubled from 1 to 2, you would have to do the same with the water ratio part. Hoped this helped!

4 0
3 years ago
Can some help me with my homework it’s number 5. 6. 7. 8. And 9.
BaLLatris [955]

Answers:

5. 296

6. 479

7. 801

8. 920

9. $281

Step-by-step explanation:

For 5-8, you add the 2 numbers. Line up the numbers by their place value.

For 9, it says she starts with $233. She worked for 6 hours today. She makes $8 for every hour. First, you have to find how much she made today. 6 hrs times $8 for every hr is $48. In total, she has $281 because we added the amount she starts with, and the amount she earned today.

4 0
3 years ago
Read 2 more answers
A test consists of 100 multiple choice questions, each with five possible answers, only one of which is correct. Find the mean a
TEA [102]

Answer:  Mean = 20 and standard deviation = 4

Step-by-step explanation:

Let x represents the success of getting the correct answer.

Here, the total number of trials(n) = 100

The probability of getting the correct answer, p = 1/5

Thus, the mean of the number of correct answer,

\mu_x= np

\mu_x= 100\times 1/5

\mu_x= 20

Now, the standard deviation, \sigma_x= \sqrt{n\times p\times (1-p)}

\sigma_x= \sqrt{100\times 1/5\times 4/5}

\sigma_x= \sqrt{16}

\sigma_x= 4

Thus, First option is correct.



6 0
3 years ago
Two goals post are 8m apart. A footballer is 34m from one and 38m from the other. Within what angle must he kick the ball if he
dmitriy555 [2]

Answer:

  11.06°

Step-by-step explanation:

The law of cosines can be used to find the angle. The sides adjacent to that angle are a=34, b=38, and the side opposite is c=8. Then the angle is found from ...

  c² = a² +b² -2ab·cos(C)

  cos(C) = (a² +b² -c²)/(2ab)

  C = arccos((a² +b² -c²)/(2ab))

  C = arccos((34² +38² -8²)/(2·34·38)) = arccos(317/323)

  C ≈ 11.06°

From the footballer's viewpoint, the goal posts are 11.06° apart.

4 0
3 years ago
Other questions:
  • Can someone please help me?
    6·2 answers
  • Identify the y-intercept ​
    10·2 answers
  • Simplify <br> 3 (2x+4y-2z)+7 (x+y-4z)
    5·1 answer
  • 1/4c+5/3c-4=2-1/12 What dose c equal
    12·1 answer
  • Write the first five terms of the sequence defined by the recursive formula
    12·2 answers
  • Find the correct classisication irratinal number rational number whole number intergers
    11·1 answer
  • 4278206 this numbers name ?​
    9·1 answer
  • Pls help , giving brainliest
    6·2 answers
  • Sandra bought 4 pounds of sweet potatoes for $5.36. What is the cost per pound of
    8·2 answers
  • Can some one help me
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!