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ElenaW [278]
3 years ago
9

The algebraic expression 4x2 + 3x + 5 is a polynomial.

Mathematics
1 answer:
Georgia [21]3 years ago
5 0

Answer: The answer is False

Step-by-step explanation:

I just took it

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Jake has $200 in his savings account. He works a part-time job and plans on depositing $40 per week into the savings account. Wh
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5 0
3 years ago
Solve.<br> - 7x^2+ 7x+1= -8
mr Goodwill [35]

Answer:

i think it is 1.127

Step-by-step explanation:

4 0
3 years ago
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Divide 15 by v. Then, subtract 7.
rosijanka [135]

A is the correct answer

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4 0
3 years ago
Read 2 more answers
Please help
user100 [1]

Answer:

Length of garden will be 30 metres.

Step-by-step explanation:

Let the Width of garden be x metres.

then,

Length of garden will be (x+6) metres.

Area = Length × Breadth

720 = x X (c+6)

720 = x²+6x

0 = x²+6x-720

As we can see above equation is a quadratic equation in the form of ax²+bx+C.

so,

=  \frac{ - b ±  \sqrt{{b}^{2} - 4ac}  }{2a}  \\ =   \frac{ - 6 ±   \sqrt{{6}^{2} - 4 \times 1 \times  - 720}  }{2}  \\ =    \frac{ - 6 ±  \sqrt{36 + 2880} }{2}  \\  =   \frac{ - 6 ±  \sqrt{2916} }{2}  \\  =   \frac{ - 6 ± 54}{2}\\= \frac{-6+54}{2} ... \frac{ - 6 - 54}{2}  \\  =  \frac{48}{2} ... \frac{ - 60}{2}  \\  = 24... - 30

One of the Roots of the Quadratic equation is 24 and other is -30.

And as we know width of any garden cannot be negative so the width of garden will be 24 metres.

As we got the width,

adding 6 to it will give us the Length,

So,

24 metres + 6 = 30 metres.

Length of the garden is 30 metres.

Hope It Helped You ;)

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@khuturr_

8 0
4 years ago
Find the rate of change of the function h(x) = 2 x on the interval 2 ≤ x ≤ 4
dangina [55]
For a linear function, the instantaneous rate of change is everywhere equal to the slope. Thus the rate of change of the function h(x)=2x on the interval 2≤x≤4
The rate of change of the function given will equal to its slope, thus;
slope,m=(y-1-y)/(x_1-x)
=(2*4-2*2)/(4-2)
=(8-4)/2
=4/2
=2

the answer is 2 
7 0
3 years ago
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