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3 years ago

Evaluate the expression for x= 2 and y=4. Enter your answer in the box. 16x + 2x2 - y2

Mathematics

1 answer:

Nostrana [21]3 years ago

8 0

Answer:

Step-by-step explanation:

Step 1: Define

x = 2

y = 4

16x + 2x² - y²

Step 2: Substitute and Evaluate

16(2) + 2(2)² - 4²

32 + 2(4) - 16

16 + 8

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Limit question thing plz help me

Sphinxa [80]

Answer:

The limit does not exist

Step-by-step explanation

For this question you have to look at the function and see what y value does it approach as it gets closer and closer to x =2, from the left side it looks like it approaces 4 and from the left side it looks like it's approaching 1, since the limits from the left and right sides are not the same, the limit does not exist

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3 years ago

(-6)*(-6)*(-6)*z*z <br> the expression is

ra1l [238]

Answer:

-216z^2

Step-by-step explanation:

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3 years ago

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Write each product using an exponent. number one 20 × 20 number two 4 × 4 × 4 × 4 number three 2 × 2 × 2 × 2 × 2 × 2 × 2 number

shtirl [24]

Answer:

1. 20² = 400

2. 4⁴ = 256

3. 2⁷ = 128

4. 3⁵ = 243

5. 10³ = 1,000

6. 7⁶ = 117,649

7. 25³ = 15,625

8. 5⁷ = 78,125

9. 6.5² = 42.25

i wasnt really sure what you meant but i hope this helps

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3 years ago

Does the function g(x) = -2x2 + 10x + 2 have a minimum or a maximum? Identify its value.<br> +

Hitman42 [59]

Answer:

(5/2, 29/2), and this represents a maximum

Step-by-step explanation:

g(x) = -2x^2 + 10x + 2 is a quadratic function with coefficients {-2, 10, 2}.

The formula for the axis of symmetry (which passes through the vertex) is

x = -b/ [2a]. Here, a = -2; b = 10. Therefore, the axis of symmetry is

x = -10/ [2(-2)] = -10/(-4) = 5/2

Evaluate the function g(x) = -2x^2 + 10x + 2 at x = 5/2 to determine the y-coordinate of the vertex:

g(5/2) = -2(5/2)^2 + 10(5/2) + 2, or

g(5/2) = -2(25/4) + 25 + 2, or

g(5/2) = -25/2 + 27, or

g(5/2) = 14.5

The vertex is thus (5/2, 29/2), and this represents a maximum, because the coefficient of the x^2 term is negative (the curve opens downward).

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3 years ago

What is the perimeter of the shape seen in the figure?

Tatiana [17]

Answer:

P = 64 cm

Step-by-step explanation:

<C = 150° - 90° = 60°

AB = AC

∠B = ∠C = 60° } => ΔABC = EQUILATERAL TRIANGLE =>

=> BC = 10 cm

P = 10cm + 8cm + 6cm + 10cm + 6cm + 6cm + 8cm + 10cm

P = 3x10cm + 2x8cm + 3x6cm

P = 30cm + 16cm + 18cm

P = 64 cm

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4 years ago

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Evaluate the expression for x= 2 and y=4. Enter your answer in the box. 16x + 2x2 - y2​

Evaluate the expression for x= 2 and y=4. Enter your answer in the box. 16x + 2x2 - y2