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
kompoz [17]
3 years ago
9

HELP PLEASE!!!!!!!!!!!!!!!

Mathematics
1 answer:
sukhopar [10]3 years ago
6 0

Answer:

21

Step-by-step explanation:

You might be interested in
Which one of these is the correct answer?
sukhopar [10]

Answer:

the top answer.............

8 0
2 years ago
Let $r$ and $s$ be the roots of $3x^2 + 4x + 12 = 0.$ Find $r^2 + s^2.$ Pls help.
nirvana33 [79]

Answer:

-56/9

Step-by-step explanation:

By Vieta's formulas,

$r + s = -\frac{4}{3}$ and $rs = \frac{12}{3} = 4.$ Squaring the equation $r + s = -\frac{4}{3},$ we get

$r^2 + 2rs + s^2 = \frac{16}{9}.$ Therefore,

$r^2 + s^2 = \frac{16}{9} - 2rs = \frac{16}{9} - 2 \cdot 4 = -\frac{56}{9}}$

5 0
3 years ago
Write the equation of the line in fully simplified slope-intercept form.
Bad White [126]

Answer:

y = -\frac{2}{5} x-6

Step-by-step explanation:

1) First, find the slope of the line. Use the slope formula m =\frac{y_2-y_1}{x_2-x_1}. Pick two points on the line and substitute their x and y values into the formula, then solve. I used the points (-5,-4) and (0,-6):

m = \frac{(-6)-(-4)}{(0)-(-5)} \\m = \frac{-6+4}{0+5} \\m = \frac{-2}{5} \\  

So, the slope of the line is -\frac{2}{5}.

2) Next, use the point-slope formula y-y_1 = m (x-x_1) to write the equation of the line in point-slope form. (From there, we can convert it to slope-intercept form.) Substitute values for the m, x_1 and y_1 into the formula.

Since m represents the slope, substitute -\frac{2}{5}  in its place. Since x_1 and y_1 represent the x and y values of one point on the line, pick any point on the line (any one is fine, it will equal the same thing at the end) and substitute its x and y values in those places. (I chose (0,-6), as seen below.) Then, with the resulting equation, isolate y to put the equation in slope-intercept form:

y-(-6) = -\frac{2}{5} (x-(0))\\y + 6 = -\frac{2}{5} x\\y = -\frac{2}{5} x-6

6 0
3 years ago
50 POINTS IF YOU HELP!!!!!
DaniilM [7]
We know that

[the area of a circle]=pi*r²
for r=4 ft
[the area of a circle]=pi*4²------> 50.24 ft²

if 2π radians ( full circle) has an area of-----------------> 50.24 ft²
5π/2 radians--------------------------------------> X ft ²
X=(5π/2)*50.24/2π-------> 62.8 ft²

the answer is
62.8 ft²
8 0
3 years ago
Read 2 more answers
Help pleeeeeeeeeease ?
cupoosta [38]
The answer is choice D.
Cause it can't be calculate.
5 0
3 years ago
Read 2 more answers
Other questions:
  • Neil is analyzing a quadratic function f(x) and a linear function g(x). Will they intersect?
    5·1 answer
  • Using polynomial identities, multiply the expression (2x+8y)(2x-8y)
    14·1 answer
  • Which of the following is the product for (x+4)(x-2)?
    11·1 answer
  • Solve the following system: (5 points)
    5·2 answers
  • Population of japan 2015
    14·1 answer
  • Line p has a slope of -3/4.Line q is parallel to line p.What is the slope of line q?
    6·1 answer
  • If 20% of 40% of a number is 10 greater than half the number what is the number
    10·2 answers
  • Please help its urgent due in an hour
    5·1 answer
  • Please help quicklyyy!!!
    12·1 answer
  • MARKING AS BRAINLIEST PLUS MANY POINTS
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!