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Komok [63]
3 years ago
7

What are the zeros of f(x) = x^2 - x - 12?

Mathematics
1 answer:
REY [17]3 years ago
6 0

Answer:

B. x = -3 and x = 4

General Formulas and Concepts:

<u>Algebra I</u>

  • Terms/Coefficients
  • Factoring
  • Solving quadratics

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

f(x) = x² - x - 12

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Factor:                                                                                                               (x - 4)(x + 3) = 0
  2. Solve:                                                                                                                 x = 4, -3
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I need help on what the area of the shape is because they didn’t tell us how to find it
Leto [7]

Answer:

The area of the shape (trapezoid) is 55 square feet.

Step-by-step explanation:

The formula to get the area of a trapezoid is ((b_{1} +b_{2} )/2)*h . b1 is one of the bases, b2 is the other and h is the height.

First, you need to find the average of the bases:

          (15+7=22)/2=11

Then, you multiply that by the height.

          11*5=55

Lastly, you add the units.

          55 square feet is the answer

8 0
4 years ago
How do you solve <br> -32+2a=0
Semmy [17]
If you're solving for a, you would add 32 to both sides
2a=32
then you would divide by 2
a=16
6 0
3 years ago
Read 2 more answers
Marquise has 200200200 meters of fencing to build a rectangular garden.
Lera25 [3.4K]

Answer:

2500 Square meters

Step-by-step explanation:

Given the garden area (as a function of its width) as:

A(w)=-w^2+100w

The maximum possible area occurs when we maximize the area. To do this, we take the derivative, set it equal to zero and solve for w.

A'(w)=-2w+100

-2w+100=0

-2w=-100

w=50 meters

Since Marquise has 200 meters of fencing to build a rectangular garden,

Perimeter of the proposed garden=200 meters

Perimeter=2(l+w)

2(l+50)=200

2l+100=200

2l=200-100=100

l=50 meters

The dimensions that will yield the maximum area are therefore:

Length =50 meters

Width=50 meters

Maximum Area Possible =50 X 50 =<u>2500 square meters.</u>

3 0
3 years ago
Ted earned $4,300 from his summer internship that he plans to invest so that he can buy a used car after three years. Ted choose
olganol [36]

Answer: Yes he will be

Step-by-step explanation:

To find out if Ted can afford the car, find the future value of $4,300 in three years.

First convert the number of years and rates to quarterly values as this is the compounding period:

Term = 3 * 4 quarters = 12 quarters

Rate = 5.5% / 4 = 1.375% per quarter

Future value = Amount * ( 1 + rate) ^ term

= 4,300 * ( 1 + 1.375%)¹²

= $5,065.69

<em>Considering that Ted makes $5,065.69 in 3 years, he will be able to buy a car that costs $4,700.</em>

8 0
3 years ago
A bag contains 4 tan socks and 7 grey socks. emily reaches into the bag and randomly selects two socks without replacement. what
Y_Kistochka [10]
Tan socks = 4
Grey socks = 7
Total number of socks = 4+7 = 11 socks
Probability of picking a tan sock then grey sock:
P(T)*P(G) = (4/11)*(7/10) = 14/54

Probability of picking a Grey sock then Tan sock
P(G)*P(T) = (7/11)*(4/10) = 14/55

Probability of two different colored socks
P(T&G)+P(G&T) = (14/55)+(14/55) = 28/55
8 0
3 years ago
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