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1 year ago

2. Is x² + 4√x a polynomial ? Justify your answer.

Mathematics

2 answers:

qwelly [4]1 year ago

8 0

Answer:

yes

Step-by-step explanation:

A polynomial is an algebraic expression of two or more terms

$x^{2} +4\sqrt{x}$ It is an algebraic expression of two terms, It is more common to label it binomial, but it is also a polynomial.

Hope this helps

nexus9112 [7]1 year ago

6 0

Answer:

No it isn't

As the variable "x" has root in it which means it isn't a whole number and for a expression to be a polynomial the variable must be whole no.

Hope it helps you!

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Emily has 7 apples . she cuts each apple into 6 slices. how many slices does Emily have ? white an equation to show how you slov

Nezavi [6.7K]

If you multiply 7 by 6 you get 42

So 7•6=42

8 0

3 years ago

Read 2 more answers

F(x) = x2 - 8x - 20 What is the axis of symmetry, vertex, and y intercept

igor_vitrenko [27]

1. vertex is -4 because:

x^2-8x-20,

a=1, b=-8 , c=-20

use vertex form! -b/2a = -8/2(1) = -8/2 = -4.

2. axis of symmatry is the x which is also -4. The same steps go for the second one.

3. y intercept, I think the answer is -20. Im not sure for this one.

IF YOU LIKE THIS ANSWER PLEASE GIVE ME BRAINLIEST.

5 0

2 years ago

PLEASE HELP

ruslelena [56]

Answer:

Rosaria purchased 50 bracelets and 70 necklaces

Step-by-step explanation:

Let the number of bracelets be b and the number of necklaces be n

b + n = 120 •••••(i)

Secondly;

10b + 11n = 1270 ••••(ii)

Total cost of b bracelets at 10 per 1 is 10b

Total cost of n bracelets at 11 per 1 is 11n

Adding both gives 1270

From i, b = 120-n

Substitute this into ii

10(120-n) + 11n = 1270

1200 - 10n + 11n = 1270

n = 1270-1200

n = 70

b = 120-n

b = 120-70

b = 50

4 0

2 years ago

A recipe for lemonade calls for 1 cup of sugar and 6 cups of water. How much sugar is used per cup of water?

grandymaker [24]

The answer is 1/6, or .16666...

3 0

2 years ago

An aeroplane at an altitude of 200m observes the angle of depression of opposite points on the two banks of a river to be 45 and

blagie [28]

Answer:

84.5 m

Step-by-step explanation:

It is often helpful to draw a diagram for word problems involving geometric relationships. One for this problem is shown below.

The mnemonic SOH CAH TOA reminds you of the relationship between sides of a right triangle:

Tan = Opposite/Adjacent

Here we're given angles of depression measured from the horizontal (as shown in the diagram), but it is more convenient to use angles measured from the vertical. In particular, ∠BAO is the complement of 60°, and its tangent is the ratio OB/OA:

tan(30°) = OB/OA

OB = (200 m)·tan(30°) ≈ 115.47 m . . . . . . multiply by OA, use OA=200 m

Likewise, we have ...

OC = (200 m)·tan(45°) = 200 m

Then the width of the river is the difference between these values:

BC = OC -OB = 200 m - 115.47 m = 84.53 m

4 0

3 years ago

2. Is x² + 4√x a polynomial ? Justify your answer. ​

2. Is x² + 4√x a polynomial ? Justify your answer.