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PolarNik [594]
3 years ago
15

Using SET NOTATION, what is the solution set for the following equation? a² - 3 = 22

Mathematics
1 answer:
mixas84 [53]3 years ago
7 0

Answer:

a = 5 or  a = -5

Step-by-step explanation:

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Kevin is 6 years older than Timothy. 4 years ago, Kevin was twice as old as Timothy. Find their present ages.
Novosadov [1.4K]

Step-by-step explanation:

Hope it helps.

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2 years ago
What is <br><br><br> x+2/4 = 5/3
tamaranim1 [39]

Answer:

x=7/6

Step-by-step explanation:

x+2/4=5/3

  -2/4  -2/4

x=5/3-2/4=7/6

3 0
3 years ago
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A park is rectangular with a length of ⅔ miles. If the area of the park is 3/9 square miles, what is the width?
Zielflug [23.3K]

Answer:

Area of the rectangular park = 2/3 square mile

Let us assume the width of the rectangular park = x

Then

The length of the rectangular park = 2 2/3 * x mile

                                                      = 8x/3 mile

Then

Area of the rectangular park = Length * Width

2/3 = (8x/3) * x

2/3 = 8x^2/3

(2 * 3)/3 = 8x^2

2 = 8x^2

x^2 = 2/8

x^2 = 1/4

x^2 = (1/2)^2

x = 1/2

So the width of the park is 1/2 feet.

Step-by-step explanation:

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4 0
3 years ago
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The value of y - r is? <br> a. 3 b. -5 c. 7 d. -7 e. 2
ser-zykov [4K]

Answer:

-7

Step-by-step explanation:


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3 years ago
Two telephone calls come into a switchboard at random times in a fixed one-hour period. Assume that the calls are made independe
svp [43]

Answer:

0.25

Step-by-step explanation:

From the given information:

Since the times are uniform distributed over the one hour period (0,1):

Then;

f_1(y_1) = 1

f_2(y_2) = 1

So, Y_1 and Y_2 are independent; then:

f(y_1|y_2) = f_1(y_1)f_2(y_2)  \\ \\ = 1(1) = 1

P(Y_1\le 0.5 Y_2 \le 0.5) = \int ^{0.5}_{0} \int ^{0.5}_{0} f(y_1,y_2) dy_{2}dy_{1}

\implies  \int ^{0.5}_{0} \int ^{0.5}_{0} (1)  dy_{2}dy_{1}

= \dfrac{1}{4}

= 0.25

3 0
2 years ago
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