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Crazy boy [7]
4 years ago
11

A+24=-15 how do you do this 1-step equation

Mathematics
1 answer:
kkurt [141]4 years ago
6 0
You must do to the left hand side what you do to the right hand side.

We just want to get only A on the LHS and how much A is on the RHS.

A + 24 - 24 = -15 - 24 // we get rid of the +24 to only leave A and we do it on the other side because we always do that

A = -39
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Consider the function f(x)=-3x2+12x-5. What is the location of the vertex? Write your answer as an ordered pair.
natita [175]

Answer:

The (x,y) point of the vertex is usually labelled as:

Vertex = (h, k)

h = -b / 2a

k = ah^2 + bh + c

f(x) = -3x^2 + 12x -5

a = -3 b=12 c=-5

h = -12 / -6  therefore h = 2

k = -3*2^2 + 12*2 -5

k = -12 + 24 -5  therefore k = 7

Vertex (2, 7)

Source: http://www.1728.org/quadr3.htm

Step-by-step explanation:

7 0
3 years ago
A box is being pulled by two people. The ropes make angles of 40° and 55° with the direction of motion of the box. If the resu
Andrew [12]

Answer:

  • 575.6 N at 40°
  • 451.7 N at 55°

Step-by-step explanation:

Angles are measured from the direction of motion, so the "force made good" is the force in the rope multiplied by the cosine of the angle. If the forces in the ropes (in Newtons) are represented by x and y, then we have ...

  x·cos(40°) +y·cos(55°) = 700

In order for the resultant to be in the direction of motion, the forces perpendicular to the direction of motion must cancel.

  x·sin(40°) - y·sin(55°) = 0

Here, we have assumed that the positive direction for measuring 40° is the negative direction for measuring 55°. That is, the angles are measured in opposite directions from the direction of motion.

Any of the usual methods for solving systems of linear equations can be used to solve this set. My preference is to use a graphing calculator. It gives the answers summarized above.

4 0
4 years ago
What’s 18/1 as a mixed number
Alina [70]

Answer:

18

Step-by-step explanation:

18 over 1 is still 18. It shouldn't be a mixed number

3 0
3 years ago
Read 2 more answers
Please help!!! Will give brainly!! 50 points
AlladinOne [14]

The answer to your question is,

B. -0.625

-Mabel <3

5 0
3 years ago
What is 4 radians converted to degrees? If necessary, round your answer to the nearest degree.
ohaa [14]

Answer: 229°

Step-by-step explanation:

Hi, to answer this question we have to multiply the radians by 180/π.

Since we have 4 radians, the expression is:

4 x (180/π) = 229.18 degrees

Rounding to the nearest degree:

229 degrees (because the first number after the point is less than 5 )

Feel free to ask for more if needed or if you did not understand something.

8 0
4 years ago
Read 2 more answers
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