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
ololo11 [35]
3 years ago
14

Check my answer?

Mathematics
2 answers:
kirza4 [7]3 years ago
7 0
Answers for this test, unit 3 lesson one are
1a 2a 3b 4d 5b
sergij07 [2.7K]3 years ago
5 0
I think you have it upside down.
When you solve a proportion, you cross multiply. You can have the same proportion just by interchanging 8 and b

a/8 = b / 15 When you cross multiply, you get
15a = 8b Try the given proportion to see what happens
You might be interested in
Look at the image. (calculus)
mash [69]
<h3>Answer: Choice H)  2</h3>

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

Explanation:

Recall that the pythagorean trig identity is \sin^2 x + \cos^2x = 1

If we were to isolate sine, then,

\sin^2 x + \cos^2x = 1\\\\\sin^2 x = 1-\cos^2x\\\\\sin x = \sqrt{1-\cos^2x}\\\\

We don't have to worry about the plus minus because sine is positive when 0 < x < pi/2.

Through similar calculations, \cos x = \sqrt{1-\sin^2x}\\\\

Cosine is also positive in this quadrant.

-------------

So,

\frac{\sqrt{1-\cos^2x}}{\sin x}+\frac{\sqrt{1-\sin^2x}}{\cos x}\\\\\frac{\sin x}{\sin x}+\frac{\cos x}{\cos x}\\\\1+1\\\\2

Therefore,

\frac{\sqrt{1-\cos^2x}}{\sin x}+\frac{\sqrt{1-\sin^2x}}{\cos x}=2

is an identity as long as 0 < x < pi/2

5 0
2 years ago
Read 2 more answers
Can a right rectangular prisms with different volumes have the same volume
Alona [7]
It depends if you mean like a prism with say 15w 10l and 9h in a horizontal and a prism with a same volume but in a different position. and have a nice day  
7 0
3 years ago
each year a tree grows 26 cm. after 4.5 years the tree is 292 cm. how tall was the tree when he moved into the house
jeka57 [31]
26×4=104
292-104=188
26÷2=13
188-13=175cm

the tree was 175cm when he moved in
7 0
3 years ago
Solve the differential equation using the method of undetermined coefficients
yuradex [85]
First: the homogeneous solutions: the characteristic equation is4r^2 - 4r - 3 = 0which has roots r = 3/2, -1/2 hence the homogeneous solution isy = c1.exp(-x/2) + c2.exp(3x/2)

next you need the general form for the guess for yp and that isyp = A1cos(2x) + A2sin(2x)
Now substitute that into the equation and solve for A1, A2.
5 0
3 years ago
Explain what it means to bisect a segment. Why is it impossible to bisect a line?
mr_godi [17]
<span>To bisect a segment means to cut through the segment's midpoint. You can't bisect a line, because a line goes on forever = no midpoint. and a line has a width of zero so it is impossibl to bisect it

</span>
5 0
4 years ago
Read 2 more answers
Other questions:
  • Which expressions simplifies to a negative number? (-1) three times , (-1) two times, (-1) four times, or (-1) five times??​
    12·2 answers
  • om invests $6249 in an account that pays 4.15% interest per year for 4 years. How much simple interest will he earn? Round your
    7·1 answer
  • The graph of a rational function has local maxima at (-1,0) and (8,0). The complex number 2+3i is a zero of the function. What i
    6·2 answers
  • It's cost $3.99 for 25 fl. oz. of detergent or $6.99 for 90 fl. oz. Which is a better buy?
    15·1 answer
  • Which of the following is a binomial?
    14·2 answers
  • 1. Students are allowed to choose 12 snacks a week at school. They may choose
    7·1 answer
  • I need help pls and explain ​
    6·1 answer
  • You spin the spinner below once: what is the P(getting a number less than 5)?
    7·2 answers
  • In a certain Algebra 2 class of 28 students, 7 of them play basketball and 5 of them
    11·1 answer
  • Write a function equation that represents a line that contains the two points (-3, 5) and (2, 10).
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!