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navik [9.2K]
3 years ago
7

Write a polynomial equation of least degree with roots 2, -1 and 4.

Mathematics
1 answer:
Rasek [7]3 years ago
3 0
A polynomial with roots a and b is (x - a)(x - b).

(x - 2)(x - (-1))(x - 4) = 0

(x - 2)(x + 1)(x - 4) = 0

has roots 2, -1, and 4.
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Solve for B and A please help ASAP
Mama L [17]

Answer:

∠A = ∠B = 80°

Step-by-step explanation:

The angles are corresponding angles where a transversal crosses parallel lines, so are congruent. That means ...

∠A = ∠B

8x -8° = 5x +25° . . . . . substitute the given expressions

3x = 33° . . . . . . . . . . . . add 8°-5x

x = 11° . . . . . . . . . . . . . . divide by 3

Then the angles are ...

8·11° -8° = 80°

6 0
3 years ago
A hair salon uses 4 bottles of shampoo for every 3 bottles of conditioner.
Rama09 [41]

Answer:

I honestly think it is C.

Step-by-step explanation:

Since "4 bottles of shampoo for every 3 bottles of conditioner" is (4,3), I think the 16 is (16,12) on the graph. It might be worng, might be right. Just go for C.

7 0
3 years ago
The population of your hometown can be modeled by the equation P equals 2538 left parenthesis 1.025 right parenthesis to the pow
Degger [83]

Answer:

2538

2.5%

Step-by-step explanation:

The population equayio since year 2000 can be modeled mathematically as :

P = 2538(1.025)^t

This is an exponential growth function which is represented by the general formula :

y = a(b)^t

Where, a is the initial population ;

b = growth factor ; b = (1 + r) where r = growth rate

Comparing the equations, the population in year 2000 represents the initial population, a = 2538

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(1 + r) = 1.025

r = 1.025 - 1

r = 0.025 ; 0.025 * 100% = 2.5%

5 0
3 years ago
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Vinvika [58]

Answer:

Area = 1/2 x b x h

= 1/2 x 8 x 4 = 16

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