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
swat32
3 years ago
6

1.

Mathematics
1 answer:
quester [9]3 years ago
4 0

Answer:

800

Step-by-step explanation:

You might be interested in
If(√14/√7-2)-(√14/√7+2)=a√7+b√2 find the values of a and b where a and b are rational numbers​
seraphim [82]

Answer:

  • a = 4/3 and b = 0

============================

<h2>Given expression:</h2>

\dfrac{\sqrt{14} }{\sqrt{7}-2} -\dfrac{\sqrt{14} }{\sqrt{7}+2}

<h2>Simplify it in steps:</h2>

<h3>Step 1</h3>

Bring both fractions into common denominator:

\dfrac{\sqrt{14} (\sqrt{7}+2)}{(\sqrt{7}-2)(\sqrt{7}+2)} - \dfrac{\sqrt{14} (\sqrt{7}-2)}{(\sqrt{7}-2)(\sqrt{7}+2)}

<h3>Step 2</h3>

Simplify:

\dfrac{\sqrt{14} ((\sqrt{7}+2) - (\sqrt{7}-2))}{(\sqrt{7}-2)(\sqrt{7}+2)} =

\dfrac{\sqrt{14} (\sqrt{7}+2 - \sqrt{7}+2)}{(\sqrt{7}-2)(\sqrt{7}+2)} =

\dfrac{4\sqrt{14} }{(\sqrt{7}-2)(\sqrt{7}+2)} =

\dfrac{4\sqrt{14} }{(\sqrt{7})^2-2^2} =

\dfrac{4\sqrt{14} }{7-4} =

\dfrac{4}{3}  \sqrt{14} }

<h3>Step 3</h3>

Compare the result with given expression to get:

  • a = 4/3 and b = 0

4 0
2 years ago
Please answer it correctly and please show work please help me if it’s correct I will mark you brainliest
Eva8 [605]

Answer:

210 hours

Step-by-step explanation:

<u>Step 1:  Make an expression</u>

(2/3 * 1575) / 5

<u>Step 2:  Multiply</u>

(2/3 * 1575)/5

(1050) / 5

<u>Step 3:  Divide</u>

(1050) / 5

210 hours

Answer:  210 hours

8 0
3 years ago
9/16 divided by 9 plz help thx for everyone that has helped me
Verizon [17]
0.5625 will be the answer to 9 divided by 16
3 0
2 years ago
Please help me with this.
kompoz [17]

Answer:

75\sqrt{2}(\sqrt{3}-1)

Step-by-step explanation:

In every right triangle, a leg is given by the multiplication of the sine of its opposite angle and the hypothenuse.

In this case, the opposite angle of x is 15°, and the hypothenuse is 300. So, we have

x = 300\sin(15) = 75\sqrt{2}(\sqrt{3}-1)

3 0
3 years ago
Help me please i will mark brainliest if correct
iren2701 [21]

Answer:

7 x 2 + 31

Step-by-step explanation:

Equals to the bottom line answer is 7

7 0
2 years ago
Other questions:
  • Tickets for the school play cost $17 each. Gary wrote the expression n X 17 to find the cost of n tickets to the play. He used t
    9·1 answer
  • 40 points and brainly math problem easy!
    7·1 answer
  • 4. A bike rental company rented out 8 bikes in its first month. The company increased the number of bikes it rented each month b
    7·1 answer
  • Evaluate the expression (5 + 2i) - (-3- i) and write the result in the form a +bi.
    11·1 answer
  • SOMEBODY PLEASE EXPLAIN THE ANSWER
    7·1 answer
  • China drove 3,000 miles in 75 hours. At this rate, how long will it take her to drive 12,000 miles?
    5·1 answer
  • What is an equation of the line that passes through the points (4, 3) and (-6, 3)?
    10·2 answers
  • Need help immediately <br> What is the equation of the line shown?
    11·1 answer
  • A box contains 3 red and 4 green marbles. If 5 marbles are drawn without replacement, what is the expected number of red marbles
    8·1 answer
  • 16% of all Americans live in poverty. If 41 Americans are randomly selected, find the probability that
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!