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
nekit [7.7K]
3 years ago
15

Can u help me with these math problems

Mathematics
1 answer:
Vlada [557]3 years ago
8 0

Answer:

Q3: A

Q4: 9x² + (-x) + (-3)

Step-by-step explanation:

Q3: C (63) => x = 63. => C(x) = 36 x 63

Q4: f(x) + g(x) = 7x² - 5x + 3 + 2x² + 4x - 6 = (7x² + 2x²) + (-5x + 4x) + (3 - 6) = 9x² + (-x) + (-3)

You might be interested in
The distance around a meter is 9619 ft. find the diameter of the crater .use 22/7 for pie
DochEvi [55]
The circumference of a circle is found with the equation

C = 2 pi * r

Since we have the circumference we can find the radius.  Then once we have the radius we can determine the diameter.

9619 = 2 (22/7) r
multiply each side by 7

67333 = 2*22*r
67333 = 44r

divide each side by 44
r = 67333/44 = 1530.295 rounded to the nearest hundredth = 1530.30

The diameter is 2 x the radius, so

1530.30 x 2 = 3060.6 ft

The diameter of the crater is 3060.6 ft
7 0
3 years ago
What is -1/11 simplified
TEA [102]
It’s just the same
Rewriting the fraction with the negative sign on the fraction gives us a negative fraction:

Answer = 1/11
7 0
3 years ago
What is the image of (3,-7) after a reflection over the line y =x
Ber [7]

Answer:

<em>Image: (-7,3)</em>

Step-by-step explanation:

<u>Reflections In The Coordinate Plane </u>

<em>Reflect over the line y = x: </em>

When reflecting a point across the line y = x, the x-coordinate, and y-coordinate change places.

Thus, the point (3,-7) maps to the point (-7,3) when reflected over y=x.

6 0
3 years ago
Explain how you could use the work backward problem solving strategy to solve the equation x/4 - 6=2
STatiana [176]
\frac{x}{4}-6=2\ \ \ First\ multiply\ each\ side\ by\ 4\\\\&#10;x-6*4=2*4\\\\&#10;x-24=8\ \ \ |Add\ 24\ to\ each\ side\\\\&#10;x=8+24\\\\&#10;x=32\\\\Solution\ is\ x=32.
7 0
3 years ago
Khan academy distance between two points
gogolik [260]

Answer:

\sqrt{37}

Step-by-step explanation:

you can use the pythagorean theorem. form a triangle, the distance on one side should be 6, the other 1. 6^{2} +1^{2} =c^{2}  , 37=c^{2}     , c=\sqrt{37}

3 0
3 years ago
Read 2 more answers
Other questions:
  • Solve these using elimination.1)x = 5 - 9y4x + 9y = -72)3x = 5y - 92y = 3x + 33)10x - 5 = 3y2x - 3y = 14)-6x - 4y = 10-12x - y =
    7·1 answer
  • In order to lose one pound, one must burn off about 3,500 calories. To burn off 100 calories, you must bicycle at 9 mph for 15 m
    5·1 answer
  • What does this equal to? <br> 8ft 12 in. = ____yd
    13·2 answers
  • The concept shown in the images is known as
    15·2 answers
  • The width of a singles tennis court is 75% of the width of a doubles court. A doubles court Is 36 feet wide. How wide is a singl
    8·1 answer
  • Find the first three output values of the fractal-generating function f(z)=z^2-2+2i
    9·2 answers
  • ann sells bracelets for $4 each and necklaces for $8 each. which inequality shows x, the number of bracelets, and y , the number
    11·1 answer
  • 21. Which is the correct answer
    11·1 answer
  • How do I solve this equation?
    9·2 answers
  • Multiply –8m(–6m – 7).<br><br> –14m2 – 15m<br> 48m2 + 56m<br> –14m – 15<br> 48m + 56
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!