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
ivann1987 [24]
3 years ago
6

Solve the system using elimination. 3 x +2 y = 8 8x + 5y = 7 PLEASE HELP MEEE

Mathematics
1 answer:
solniwko [45]3 years ago
3 0
X = 2, y = 1. Tell me if it’s correct
You might be interested in
What is the arc length if Θ = 2 pi over 7 and the radius is 3 cm? A. 7 pi over 12
hodyreva [135]

Answer: Option 'C' is correct.

Step-by-step explanation:

Since we have given that

\theta=\frac{2\pi}{7} \\\\r=3\ cm

An arc is a part of total circumference of circle and length of that arc is the measurement of linear distance.

Since we know the formula for "Length of an arc " , we get

L=r\times \theta\\\\L=\frac{2\pi}{7}\times 3\\\\L=\frac{6\pi}{7}

Hence, Option 'C' is correct.


6 0
3 years ago
Read 2 more answers
Prove the trigonometric identity!<br><br> Please help!! 50 Points!
Rudiy27

Answer:

:)

Step-by-step explanation:

For simplicity I will substitue x for β.

1-sin(2x)=(cosx-sinx)^2\\1-2sin(x)cos(x)=cos^2x-2sin(x)cos(x)+sin^2x\\1=cos^2(x)+sin^2(x)\\1=1

In the first step I used the identity

sin(2x)=2sin(x)cos(x)

And I factored out (cosx-sinx)^2

Then it's just simple algebra to cancel till the 3rd step where we used another identity derived from the Pythagorean Theorem.

cos^2(x)+sin^2(x)=1

That's it!

3 0
2 years ago
This is a question from my sibling's math class.
Solnce55 [7]

Answer:

14

Step-by-step explanation:

You can solve using PEMDAS:

Parentheses

Exponents

Multiplication

Division

Addition

Subtraction

3(2+5)-5(3)+8=?

3(7)-5(3)+8=?

No exponents

3(7)-5(3)+8=?

21-15+8=?

No division

21-15+8=?

21-7=?

21-7=14

3(2+5)-5(3)+8=14

5 0
2 years ago
Read 2 more answers
Jupiter orbits the sun at a rate of 8 miles per second. How far does Jupitertravel in one day? Tip: There are 86400 seconds in a
gulaghasi [49]

Answer:

Jupiter travels 691200 miles a day

Step-by-step explanation:

I just did 86400 x 8

Plz give brainliest

5 0
3 years ago
What is 52,642 rounded to the nearest thousand
valkas [14]
2 represents the thousands. Round the number after 2 which is 6. Since 6 is greater than 5, you round it up and you get 53,000.
8 0
3 years ago
Other questions:
  • a store advertises a 20% off sale. if the article marked for the sale is $24.48 what is the regular price brainly
    11·1 answer
  • Megan uses a pedometer to find how many steps she takes each school day. she took 32,410 steps over the course of 5 days. she to
    13·2 answers
  • Consider the expression below. For (x - 6)(x + 2) to equal 0, either (x - 6) or (x + 2) must equal_________ . The values of x th
    7·2 answers
  • 2 Polnis<br> Evaluate 2(x + 1) - 3 when x = 6.<br> O<br> B.<br> O c. 5<br> O D. 11
    9·1 answer
  • I GIVE BRAINLIEST! The equation y = 1.9 x can be used to determine the total weight in pounds, y, of the number of paperback boo
    7·1 answer
  • Three terms are in a rational equation. The denominators are: 4, 4x, and 4x+1.
    15·1 answer
  • The single discount of two successive discounts 10% and 5% is​
    5·1 answer
  • I really need help with this.
    11·1 answer
  • The equation below describes a proportional relationship between x and y. What is the constant of proportionality? 2 у= 5Х.​
    8·1 answer
  • Order at the end and help pls ​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!