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3 years ago

F(x) = x^2-4x find f(2)

Mathematics

1 answer:

irga5000 [103]3 years ago

8 0

Answer: -4

Step-by-step explanation:

Given the value of x, you must plug it into the equation ( f(x) is basically y )

(2)^2 - 4(2)

4 - 8 = -4

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4²+2²-(-3²)=m²-(-1²)+(√3)²

nika2105 [10]

Answer:

m = ± 5

Step-by-step explanation:

Given

4² + 2² - (- 3²) = m² - (- 1²) + ( $\sqrt{3}$ )² ← evaluate exponents

noting that - 3² = - 9 and - 1² = - 1

16 + 4 - (- 9) = m² - (- 1) + 3, that is

20 + 9 = m² + 1 + 3

29 = m² + 4 ( subtract 4 from both sides )

25 = m² ( take the square root of both sides )

m = ± 5

3 0

4 years ago

Please this is a test help ???Asap 20 points

Tanya [424]

A n s w e r :

y = 2x + 3

4 0

3 years ago

What is 2462 divided by 2

stiv31 [10]

Dividing by 2 is the same as multiplying by 1/2.

2462 * 1/2 = 1231

3 0

3 years ago

Read 2 more answers

This diagram is a straightedge and compass construction. A is the center of one circle, and B

Serhud [2]

Answer:

Correct choices are a, b, e

Step-by-step explanation:

As per diagram, the circles are equal.

Since the distance AB is the radius of both circles:

AB = AC = BC = BD = AD = r

So the answer choices:

a. AC = BC

Correct, both equal to r

b. AC = BD

Correct, both equal to r

C. CD = AB

Incorrect. Half of CD is the leg of 30-60-90 triangle and is equal to r√3/2, so CD = AB√3

d. ABCD is a square

Incorrect. ACBD is rhombus

e. ABD is an equilateral triangle

Correct, all three sides are equal to r

f. CD = AB + AB

Incorrect as CD = AB√3

3 0

3 years ago

(6x^2-5x+3)+(3x^2+7x-8) add

Mrac [35]

Answer:

$9 {x}^{2} + 2x - 5$

Step-by-step explanation:

I have answered ur question

8 0

3 years ago