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
garik1379 [7]
2 years ago
8

Help me I don’t understand this

Mathematics
2 answers:
kobusy [5.1K]2 years ago
7 0
PLEASE RATE 5 STARS

Your answer would be 5.90 for the following reasons:

If you take your angle measurement (40) and the length from A to B you would  come out with this formula: 7 x tan 40

To figure this out on a calculator press "TAN" and type 40 and then multiply it by 7 and your answer would be 5.87 but rounded to the nearest hundredth it would be 5.90. 
Georgia [21]2 years ago
4 0
40° + 7 = 47
180° - 47 = 133°

Hope this Helps!!
You might be interested in
Please put in order smallest to largest.
yaroslaw [1]
1 integers
2 rational
3 whole numbers
4 real numbers
7 0
3 years ago
Round 86 to the nearest 10
a_sh-v [17]

Answer:

90

Step-by-step explanation:

3 0
2 years ago
Prove that √2 +√5 is irrational
Sindrei [870]

We have to prove that \sqrt{2}+\sqrt{5} is irrational. We can prove this statement by contradiction.

Let us assume that \sqrt{2}+\sqrt{5} is a rational number. Therefore, we can express:

a=\sqrt{2}+\sqrt{5}

Let us represent this equation as:

a-\sqrt{2}=\sqrt{5}

Upon squaring both the sides:

(a-\sqrt{2})^{2}=(\sqrt{5})^{2}\\a^{2}+2-2\sqrt{2}a=5\\a^{2}-2\sqrt{2}a=3\\\sqrt{2}=\frac{a^{2}-3}{2a}

Since a has been assumed to be rational, therefore, \frac{a^{2}-3}{2a} must as well be rational.

But we know that \sqrt{2} is irrational, therefore, from equation \sqrt{2}=\frac{a^{2}-3}{2a} the expression \frac{a^{2}-3}{2a} must be irrational, which contradicts with our claim.

Therefore, by contradiction,  \sqrt{2}+\sqrt{5} is irrational.

4 0
3 years ago
Help or u will not get brainlest
klemol [59]

Answer:

1st Equation: 0.95 x 15  answer if needed: 14.25

2nd Equation: 15 - 0.25 answer if needed: 14.25

Step-by-step explanation:

1st: 100% would be 1, so subtract 0.05 (5%) from that to get 0.95 (95%), then multiply that by the total amount of money (undiscounted)

2nd: Find the original price.  Get the the discount percentage.  Calculate the savings.  Subtract the savings from the original price to get the sale price

7 0
2 years ago
Fatima wants to mail three parcels to three village school she finds that the postal charges are rupees 20 rupees 28 and 36 resp
kicyunya [14]

Answer:

84

Step-by-step explanation:

god bless stay safe po

5 0
3 years ago
Other questions:
  • The cost of 10 oranges is $1.00.What is the cost of 5 dozen oranges?
    11·1 answer
  • Ducks unlimited helps sample duck species across the united states. Samples from one particular location for the last two years
    6·2 answers
  • How can I solve 30x-18-5-4x=55
    12·1 answer
  • What is 56% of 150?<br><br> Enter your answer in the box.
    6·2 answers
  • 3(x - 1) - 8 = 4(1+x) + 5​
    5·2 answers
  • Ten times the sum of half a number and 6 is 8
    13·1 answer
  • Find the sum.<br> 2.680<br> 34.200<br> +20.386
    9·2 answers
  • Please help and thank you
    5·1 answer
  • If the simple interest on $1,000 for 2 years is $140, then what is the interest rate?
    14·1 answer
  • Multiply.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!