3 years ago

Justin now has a final exam today. There are 20 questions with 3 options. Each

Mathematics

1 answer:

mamaluj [8]3 years ago

6 0

Answer: .0142%

Step-by-step explanation:

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Heather earns $16 for each hour she works as a lifeguard. Choose the equation that models the situation, where h represents the

lord [1]

Answer:

I'm pretty sure the answer is m = 16h

Hope this helps!

Please mark as brainliest!

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2 years ago

Write the following in algabraic expression: the sum of the number a and three times the square of the number b

ycow [4]

Answer:

a+3b^2

Step-by-step explanation:

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1 year ago

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Andrew has a flying disc with a radius of 10 centimeters. What is the circumference of the disc?

jasenka [17]

10x2= 20

20x3.14= 62.8

the circumference of the disc is 62.8

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3 years ago

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Given that f(x) =x^2-3/3<br> a) Find f(3)<br> b) Find f'(x)<br> c) Find f'(11)

Ber [7]

A) F(3)=3^2-3:3= 9-3:3=9-1=8
B) ?
C) F(11)= 11^2-3:3=121-1= 120

I think this

6 0

2 years ago

Solve for x in the equation x² + 14x + 17 = - 96

gavmur [86]

Answer:

Solutions of x are;

x = -7 + 8i and x = -7 -8i

Step-by-step explanation:

Given the equation: $x^2+14x+17 = -96$

Add 96 both sides we get;

$x^2+14x+17+96 = 0$

$x^2+14x+113= 0$

Using quadratic formula $ax^2+bx+c = 0$ then the solution is given by:

$x = \frac{-b\pm\sqrt{b^2-4ac}}{2a}$

On comparing we have;

a= 1, b =14 and c =113

$x = \frac{-14\pm\sqrt{(14)^2-4(1)(113)}}{2(1)}$

$x = \frac{-14\pm\sqrt{196-452}}{2}$

$x = \frac{-14\pm\sqrt{-256}}{2}$

Simplify:

$x = \frac{-14\pm 16i}{2}$ ; where i is the imaginary, $i^2= -1$

$x = -7 \pm 8i$

Therefore, the solution of x are; x = -7 + 8i and x = -7 -8i

4 0

2 years ago