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vesna_86 [32]
3 years ago
12

Which of these is not a polynomial? A. 29x^400-7 B. 41 C. 6x^4-3x^2+8x-9 D. 16/x^2

Mathematics
1 answer:
olga_2 [115]3 years ago
4 0
B is not a polynomial, has no x terms 
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HELP plssssssssssssssssssssssss
hoa [83]

Answer: 8.5

Step-by-step explanation: 8.5 because 34 divided by 4 is 8.5. To find the unit rate, make 4 hours turn to 1 hour. To do that, divided 4 by 4. Do the same with the other number, which is 34. 34 divided 4 is equal to 8.5

7 0
3 years ago
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How to rewrite√-49 -4 in complex number notation
stira [4]
Sqrt(49)*sqrt (-1) -4 = 7i-4
5 0
3 years ago
If the roots of a quadratic equation are 1±√5, then the product of the roots is
Drupady [299]
The plus-minus sign represents that there are two possible outcomes.

In this case, we have 1 \pm \sqrt{5}. When we branch out the possibilities we got 2 values: 1 + \sqrt{5} and 1 - \sqrt{5}

Those are the roots of this equation. When they ask their product, they want you to multiply both numbers.

When we multiply them: (1 + \sqrt{5}) \times( 1 - \sqrt{5})

When we FOIL the we get: 1 \times 1 - 1 \times \sqrt{5} + 1 \times \sqrt{5} - \sqrt{5} \times \sqrt{5}

Simplify:
1 - \sqrt{5} + \sqrt{5} - 5
1 - 5 = 6

So the product of the two roots of this equation is 6.
5 0
3 years ago
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Find the solutions to x2 = 20.<br> :):):) i love you
monitta

Answer:

x = 10

Step-by-step explanation:

1st Divide both sides by 2: x2 ÷ 2 = 20 ÷ 2

2nd Simplify: x = 10

Hope I helped :)

7 0
3 years ago
What is the answer to this system of equations? 2x - 3y= 21 and -6x + 2y = 7.
allsm [11]

answer:

x = - 9/2

y = -10

Step-by-step explanation:

make both equations look like y =

2x-3y=21 -> -3y= -2x+21 -> y = (-2x+21)/-3 -> y = 2/3x - 7

-6x + 2y = 7 -> 2y = 6x + 7 -> y = 3x + 7/2

now make the equations equal to each other (since they both equal y)

get x

2/3x - 7 = 3x + 7/2

-7 -7/2 = 3x - 2/3x

-14/2 -7/2 = 9/3x - 2/3x

-21/2 = 7/3x

(3/7) -21/2 = x

x = (3/7) -21/2

x = - 63/14

x = - 9/2

put it back in an equation to get y

y = 3x + 7/2

y = 3(-9/2) + 7/2

y = -27/2 + 7/2

y = -20/2

y = - 10

brainly.com/question/12203001

5 0
1 year ago
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