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
xz_007 [3.2K]
3 years ago
10

A triangle has sides of (2x), (x - 7) and (3x - 20).

Mathematics
1 answer:
LiRa [457]3 years ago
7 0
2x+x-7+3x-20=87cm
6x-27=87
6x=114
x=19
Therefore the sides are:12cm, 38cm, and 37cm
You might be interested in
Does favorite food depend on your gender? A survey asks a group of college students about their favorite foods. It also groups t
Oxana [17]

Answer:

Yes, it does

Step-by-step explanation:

More Men like the Pizza and Hambugers more than the girls. Both like shushi Equaly but 2 beats 1 am a right.

7 0
2 years ago
Find the percentage of increase from 80 to 90
antoniya [11.8K]

Answer: The answer is 1/2 1/4 and 1/9

Step-by-step explanation: I did it already and i got it right

5 0
2 years ago
Urgent! If you want to help me, go to my profile and answer my last 2 questions!! Again, this is urgent and I really need help :
erastovalidia [21]

Answer:

okay i will check it to see

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Find the exact value of the following expression (without using a calculator): tan(Sin^-1 x/2)
Sati [7]

Answer:

tan(Sin^-1 x/2)=  \frac{x/2}{\sqrt{1-x^{2}/4 } }

Step-by-step explanation:

Let sin^-1 x/2= θ

then sinθ= x/2

on the basis of unit circle, we have a triangle with hypotenuse of length 1,   one side of length x/2 and opposite angle of θ.

          tan(Sin^-1 x/2) = tanθ

           tanθ= sinθ/cosθ

as per trigonometric identities cosθ= √(1-sin^2θ)

           tanθ= sinθ/ √(1-sin^2θ)

substituting the value sinθ=x/2 in the above equation

             tanθ= \frac{x/2}{\sqrt{1-x^{2}/4 } }

now substituting the value sin^-1 x/2= θ in above equation

             tan(sin^-1 x/2) =  \frac{x/2}{\sqrt{1-x^{2}/4 } }

!

3 0
2 years ago
A polynomial function has a root of –4 with multiplicity 4, a root of –1 with multiplicity 3, and a root of 5 with multiplicity
lorasvet [3.4K]

Answer:

To draw this graph, we start from the left in quadrant 3 drawing the curve to -4 on the x-axis to touch it but not cross. We continue back down and curve back around to cross the x-axis at -1. We continue up past -1 and curve back down to 5 on the x-axis. We touch here without crossing and draw the rest of our function heading back up. It should form a sideways s shape.

Step-by-step explanation:

A polynomials is an equation with many terms whose leading term is the highest exponent known as degree. The degree or exponent tells how many roots exist. These roots are the x-intercepts.

This polynomial has roots -4, -1, and 5. This means the graph must touch or cross through the x-axis at these x-values. What determines if it crosses the x-axis or the simple touch it and bounce back? The even or odd multiplicity - how many times the root occurs.

In this polynomial:

Root -4 has even multiplicity of 4 so it only touches and does not cross through.

Root -1 has odd multiplicity of 3 so crosses through.

Root 5 has even multiplicity of 6 so it only touches and does not cross through.

Lastly, what determines the facing of the graph (up or down) is the leading coefficient. If positive, the graph ends point up. If negative, the graph ends point down. All even degree graphs will have this shape.

To draw this graph, we start from the left in quadrant 3 drawing the curve to -4 on the x-axis to touch it but not cross. We continue back down and curve back around to cross the x-axis at -1. We continue up past -1 and curve back down to 5 on the x-axis. We touch here without crossing and draw the rest of our function heading back up. It should form a sideways s shape.

8 0
3 years ago
Other questions:
  • Will mark brainliest if amswer right pitcure included​
    8·2 answers
  • Solve the equation.
    13·2 answers
  • What is an x and y intercept for 14x+y=140
    10·1 answer
  • What is 5.96 as a fraction
    8·2 answers
  • Line WV is perpendicular to both line RS and line TU. On a coordinate plane, 3 lines are shown. Line V W goes through (negative
    7·2 answers
  • Sally read 13 books during this month. her brother read 7 books. one fourth out of all books they read were non fiction. how man
    12·1 answer
  • Write an inequality for the situation. There are more than 65 children in the yard.
    8·1 answer
  • Several people form groups with four people in each group.Write an expression for the number of groups formed by p people. How m
    11·1 answer
  • Simplify to create an equivalent expression (2j+1)9-7j
    11·2 answers
  • Solve four sixths plus one third
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!