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andrezito [222]
3 years ago
10

-15+23x – 10x² + 12x4 What is the degree

Mathematics
2 answers:
oksian1 [2.3K]3 years ago
7 0

Answer:

- 3x + 1

Step-by-step explanation:

Romashka [77]3 years ago
6 0

Answer:

the degree is 4

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Find the equation of the line passing through the points 7,2 and 9,1
bija089 [108]

9514 1404 393

Answer:

  y = -1/2x +11/2

Step-by-step explanation:

The slope of the line is ...

  m = (y2 -y1)/(x2 -x1)

  m = (1 -2)/(9 -7) = -1/2

The y-intercept is ...

  b = y -mx

  b = 2 -(-1/2)(7) = 11/2

Then the slope-intercept equation is ...

  y = -1/2x +11/2

_____

<em>Alternative solution</em>

A general form equation for the line can be ...

  (y1 -y2)(x -x1) -(x1 -x2)(y -y1) = 0

  (2 -1)(x -7) -(7 -9)(y -2) = 0

  x-7 +2y -4 = 0

  x +2y -11 = 0 . . . . . general form equation

  x +2y = 11 . . . . . . . standard form equation

Note that we want the x-coefficient to be positive, so we chose the order of the points to make that be the case.

5 0
3 years ago
A bag contains 5 blue marbles, 2 black marbles, and 3 red marbles. A marble is randomly drawn from the bag.
Natali5045456 [20]

Answer:  4/5 , 3/10

Step-by-step explanation:

P(not drawing black marble)=\frac{ number of marbles which are not black}{total number of marbles}

                                     = 8/10

                                     =4/5

P(drawing a red marble)=\frac{ number of marbles which are red}{total number of marbles}

                                          =3/10

4 0
3 years ago
Read 2 more answers
a flagpole cast a shadow 25 meters long when the angle of elevation of the sun is 40 how tall is the flag pole to the nearest me
nata0808 [166]

Answer:12.59

Step-by-step explanation:

enter image source here

From the diagram you can see that we have constructed a right triangle, with height A and base 15.

Length of shadow = 15 feet.

Height of flagpole = A.

We know the angle of elevation is

40

∘

. Using this angle and the tangent ratio, we can find A.

tan

(

40

∘

)

=

opposite

adjacent

=

A

15

∴

tan

(

40

∘

)

=

A

15

Rearranging:

A

=

15

tan

(

40

∘

)

By calculator:

A

=

12.59

feet. ( 2 d.p.)

5 0
3 years ago
It you invest S500 at an annual interest rate of 10% compounded continuously, calculate the final
lord [1]

Answer:

Step-by-step explanation:

The formula for continuous compounding is

A(t)=Pe^{rt} where A(t) is the amount after all the compounding is done, P is the initial investment, r is the rate as a decimal, and t is the time in years.  Filling in our info:

A(t)=500e^{(.1)(5)}

First raise e to the product of that power to get

A(t)=500(1.64872171)

Multiply those numbers together to get A(t) = $824.36

8 0
3 years ago
A school is arranging a field trip to the zoo. The school spends 654.36 dollars on passes for 34 students and 4 teachers. The sc
Morgarella [4.7K]

Answer:

<h2>Pass = $17.22</h2><h2>Lunch = $8.94</h2>

Step-by-step explanation:

People = 34 + 4 = 38

Pass price per person = 654.36 / 38 = $17.22

Lunch price per student = 303.96 / 34 =$8.94

Pass = $17.22

Lunch = $8.94

7 0
3 years ago
Read 2 more answers
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