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
vichka [17]
3 years ago
11

What’s the expression of (9x2 - 2x + 7) + (4x2 + 7x + 2)

Mathematics
1 answer:
zloy xaker [14]3 years ago
6 0

Answer:

35+5x

Step-by-step explanation:

Pick each bracket and solve them separately. After solving, then you add them

the first bracket= (9x2-2x+7) = 25-2x ------- eqn 1

the second bracket= (4x2+7x+2) = 10+7x ---- eqn 2

Add eqn 1 and 2

= (25-2x) + (10+7x)

Grouping like terms,

= (25+10) + (-2x+7x)

=35+5x

You might be interested in
1, 6, 13, 22, 33, 46, 61 what comes next???????
laiz [17]

Answer:

76

its going by 15's so you add 15

4 0
3 years ago
Read 2 more answers
Please help me<br>simplify<br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B32%20-%20%20%5Csqrt%7B50%7D%20%7D%20" id="TexFormul
Mnenie [13.5K]

Answer:

\sqrt{32-5\sqrt{2} }

Step-by-step explanation: I hope it helps :)

\sqrt{32-\sqrt{50} } \\\\simplify \: \sqrt{50} \:to \:5\sqrt{2}  \\\\= \sqrt{32-5\sqrt{2} } \\\\Decimal Form: 4.992888

5 0
3 years ago
How do you determine if the line segments are congruent
Gemiola [76]
You must calculate the length of the segments.

Suppose segments AB and CD
Being A (m, n), B (p, q)  C(r,s) and D(t,u)
<span>
They are congruent if:

</span>\boxed{(p-m)^2+(q-n)^2=(t-r)^2+(u-s)^2}<span>

</span>
4 0
4 years ago
Read 2 more answers
3x+4y=25<br> 3x-3y=-3<br> Following system of equations write answer as an ordered pair
Charra [1.4K]
3x+4y=25\\&#10;3x-3y=-3|\cdot(-1)\\\\&#10;3x+4y=25\\&#10;\underline{-3x+3y=3}\\&#10;7y=28\\&#10;y=4\\\\&#10;3x-3\cdot4=-3\\&#10;3x-12=-3\\&#10;3x=9\\&#10;x=3\\\\&#10;\boxed{(x,y)=(3,4)}&#10;
5 0
3 years ago
The angle of elevation of the top of a tower from a point 100m away is 45 degrees. What is the height of the tower to the neares
OLEGan [10]
<h3>Answer: 100 meters</h3>

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

Explanation:

If you draw out the diagram, then you'll find that a 45-45-90 triangle forms. The nice thing about this type of triangle is that the two legs are always the same length. The horizontal leg is 100 meters, so the vertical leg must also be 100 meters.

Side note: this type of triangle is an isosceles right triangle.

---------

You could use the tangent rule to get the same thing

tan(angle) = opposite/adjacent

tan(45) = 100/x

1 = 100/x

1*x = 100

x = 100

In this case, the opposite leg is the vertical leg since it is furthest from the angle of elevation.

5 0
3 years ago
Read 2 more answers
Other questions:
  • Please help I only have 10 minutes!
    11·1 answer
  • How many minutes are in 2 3/5 hours
    10·2 answers
  • Please help! Very Easy Question! Which of the following are rational numbers?
    5·1 answer
  • What is f(x) when given the points (0,-5)?
    7·1 answer
  • What are the numerical measures of each angle in the
    11·1 answer
  • What is the radius of a cylinder with a volume of 3,165.12 cubic centimeters and a height of 7 centimeters?
    5·1 answer
  • What is the mean of 102, 124, 140, 130, 120, 110, 124, 100
    13·1 answer
  • Taylor can solve riddles very quickly. She solved 11 riddles in 4 minutes. How many did she solve each minute?​
    9·2 answers
  • There are 15 pieces of fruit in a fruit bowl and 6 of them are apples. What percentage of the pieces of fruit in the bowl are ap
    14·2 answers
  • WILL MARK BRAINLIST!!!!
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!