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baherus [9]
3 years ago
14

Write a polynomial equation with integer coefficients that has the given roots x=1, x=-4

Mathematics
2 answers:
Gekata [30.6K]3 years ago
7 0
(x -1)(x +4) = 0

x² +3x -4 = 0 . . . . . . probably the form you're looking for
torisob [31]3 years ago
6 0
<h2>Answer with Step-by-step explanation:</h2>

If a polynomial has roots a and b

Then, equation of polynomial can be given by:

(x-a)(x-b)= x²-(a+b)x+ab

Here, we are given roots of polynomial to be 1 and -4

i.e. a=1 and b= -4

Polynomial equation=x²- (1+(-4))x+1(-4)

                                  = x² - (1-4)x - 4

                                  = x² + 3x - 4

Hence, A polynomial equation with integer coefficients that has roots x=1 and  x= -4 is:

x² + 3x - 4

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Jessica is a custodian at Oracle Arena. She waxes 20 m² of the floor in = of an hour. Jessica
Wewaii [24]

The complete question is as follows:

Jessica is a custodian at Oracle Arena. She waxes 20 \mathbf{m^{2}} of the floor in \mathbf{\frac{3}{5}} of and hour. At this rate, how many square meters can she wax per hour ?

Answer:

\mathbf{\frac{100}{3}\approx33.33 \ m^{2} \ per \ hour}

Step-by-step explanation:

\textrm{rate}=\frac{\textrm{Area waxed in square meter}}{\textrm{Time taken to wax in hours}}

\textrm{rate}=\frac{20 \ \textrm{m}^{2}}{\frac{3}{5} \ \textrm{hours}}

\textrm{rate}=\frac{20\times5}{3}

\mathbf{rate=\frac{100}{3}\approx33.33 \ m^{2} \ per \ hour}

8 0
3 years ago
If y = 3x+b intersects y= mx +3 at (2, 3), find the value of b and m.
Darina [25.2K]

Answer:

The value of b is -3 and m is 0.

Step-by-step explanation:

You have to substitute the coordinates into both equation in order to find m and b value :

Find m,

y = mx + 3

At (2,3),

3 = m(2) + 3

3 - 3 = 2m

2m = 0

m = 0

Find b,

y = 3x + b

At (2,3),

3 = 3(2) + b

b + 6 = 3

b = 3 - 6

b =  - 3

3 0
3 years ago
Read 2 more answers
Please help 25 points and brainliest
-BARSIC- [3]

Answer:

1a. 8

1b. AB & BC

1c. AC

2. \sqrt{52} miles

3. NO

Step-by-step explanation:

1a. AC is your hypotenuse which is C² and BC is B², so we plug it in the equation.

A²+6²=10²

A²+36=100

A²=64

A=\sqrt{64}

A=8

1b. Legs are the two shorter sides, AB & BC, which are 6 & 8 respectively.

1c. The hypotenuse is the longest side AC

2. Make lines that make the graph for a triangle with a line. My graph is linked below. Then counts the points, AC=6, BC=4, then use the pythagorean therom.

6²+4²=X²

36+16=52

\sqrt{52}=X

3. 15²+17²=19²

514=361

not possible

so it is not a right triangle

7 0
3 years ago
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3 years ago
8/6 + (3/8 + x)(2) =
Serhud [2]

Answer:

2x+25/12

Step-by-step explanation:

Hope this helps and have a great day!!!!!

7 0
3 years ago
Read 2 more answers
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