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
torisob [31]
2 years ago
5

Evaluate the expression when a=-15 and b=-5. b^2 / a + 5​

Mathematics
1 answer:
DENIUS [597]2 years ago
3 0
Answer: 20/3

Solution:

-5^2/-15 + 5
Determine the sign

5^2/15 + 5
Calculate

25/15 + 5
Simplify

5/3 + 5
Transform the expression

5 + 15/3
Calculate

= 20/3

(But there’s alternative forms too!: 6.6, 6 2/3)
You might be interested in
Could someone please list all of the basic derivative rules?
olchik [2.2K]

Answer:

The sum rule is f' + g'

The difference rule is f' − g'

The product rule is f g' + f' g

The quotient rule is (f' g − g' f )/g2



5 0
3 years ago
N 1968, it cost $54,000 for a 30-second commercial during the Super Bowl. In 1973, the cost for a 30-second commercial was $88,0
madreJ [45]
In 5 years, the price increased about 30%.
I am not good at perentages, so correct me if I'm wrong. Also this is an estimation, not the exact percentage.
8 0
3 years ago
Triangle ABC has vertices A(-3,0) B(0,6) C(4,6). Find the equations of the three medians of triangle ABC
Mariana [72]

Answer:

1.y=-6x+6, y=\frac{6}{5} x+\frac{18}{5}, y=\frac{6}{11} x+\frac{42}{11}

2.y=-\frac{1}{2} x+2\frac{1}{4} , x=2, y=-\frac{7}{6}x+\frac{43}{12}

Step-by-step explanation:

A(−3, 0), B(0, 6), and C(4, 6)

using the midpoint formula: (\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2}) we can find all of their midpoint which is necessary to complete question 1 and 2

Mid AB=(-1.5, 3), Mid BC=(2, 6), Mid AC=(0.5,3)

Next, we have to find the slope of from the vertex and the midpoint of each side. We use the slope formula: \frac{y_2-y_1}{x_2-x_1}.

You would get -6, 6/5, and 6/11.

Next you substitute in the coordinates for the equation of each for example: y=-6x, you switch in the set of cords AB which is (-1.5, 3). 3=-6(-1.5)+z and find that z=6, so the equation is y=-6x+6. As for the rest, repeat the same process until you find all 3 cords. You should get an answer of y=-6x+6, y=\frac{6}{5} x+\frac{18}{5}, y=\frac{6}{11} x+\frac{42}{11}

For question 2,

The line has to be perpendicular bisector to the midpoint, signifying that it has to split 2 angles into congruent angles and a side into half. In order to do that we need to first find the opposite reciprocal of each side's slope. Which means we need to once again use the slope formula and get the opposite reciprocal by -\frac{1}{slope}. For all the opposite reciprocal slopes you get will be incorporated into the final formulas. That gives us the slopes of -1/2, 0 and -7/6. Then do the same process of matching cords with these incomplete equations and you can find the final equations of y=-\frac{1}{2} x+2\frac{1}{4} , x=2, y=-\frac{7}{6}x+\frac{43}{12}

I hope that helped with your question!! :)

Also I'm an RSM student too and I didn't know how to do them before so I searched it up.

6 0
3 years ago
Directions: Identify the rise, run, and slope of the line below.
Kitty [74]
Rise and run: -2/4
Slope: -1/2
6 0
3 years ago
Read 2 more answers
A raffle prize of 14x^2/15dollars is to be divided among 7x people. Write an expression for the amount of money that each person
vladimir2022 [97]

For this case we must divide the following expression:

\frac {\frac {14x ^ 2} {15}} {7x}

And in this way we get the amount of money that each person will receive.

Then applying double C we have:

\frac {14x ^ 2} {15 * 7x} =\\\frac {14x ^ 2} {105x} =\\0.133x

Thus, each person has 0.133x of money!

Answer:

0.133x

7 0
3 years ago
Other questions:
  • In a school building, there are 8 exterior doors and 12 stairways to enter the second floor. Find a total number of ways to reac
    14·1 answer
  • Find an equation for the line that passes through the point (2, −9) and is parallel to the y-axis.
    13·1 answer
  • Which of the following inequalities matches the graph? graph of an inequality with a solid line through the points (1, 4) and (2
    5·2 answers
  • How do you solve this? Number 3 please
    5·1 answer
  • If x-12√x + 36 = 0 what is the value of x A. 6 B. 6^2 C. 6^3 D. 6^4
    11·1 answer
  • The table represents a proportional relationship. Give the constant of proportionality, and write an equation that represents th
    14·1 answer
  • It takes 0.25 cup of sugar to make a batch of chocolate chip cookies. I have 5.50 cups of sugar. How many batches of cookies can
    6·2 answers
  • I want to i want to i want to
    13·1 answer
  • What is the value of X
    7·1 answer
  • Answer the statistical measures and create a box and whiskers plot for the following
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!