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3 years ago

SOMEONE HELP! PLEASE! read the attached files

Mathematics

1 answer:

Trava [24]3 years ago

7 0

Answer: 43 squared units

Explanation:

So the area is the total amount of the inside of the polygon (I’m not good at explaining) and you get your area from using measurements on the sides of the shape for example for a square let’s say the side is 4 and another side is 4 so you multiply that and you get 16 which is the area

So basically since this one is a open polygon you can just count the inside of the poly using the squares

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3) Solve the System of Equations using Elimination/Combinations. (5 points)

Schach [20]

Answer:

(1, 2 )

Step-by-step explanation:

Given the 2 equations

- 2x - y = - 4 → (1)

x + 2y = 5 → (2)

Multiplying (2) by 2 and adding result to (1) will eliminate x- term

2x + 4y = 10 → (3)

Add (1) and (3) term by term to eliminate x

0 + 3y = 6

3y = 6 ( divide both sides by 3 )

y = 2

Substitute y = 2 into either of the 2 equations and solve for x

Substituting into (2)

x + 2(2) = 5

x + 4 = 5 ( subtract 4 from both sides )

x = 1

solution is (1, 2 )

3 0

2 years ago

Which exponential function is represented by the values in the table?

astraxan [27]

ANSWER

The exponential function is
$f(x) = 3( {2}^{x} )$

EXPLANATION

Let the exponential function that is represented by the values in the table be of the form,

$f(x) = a( {b}^{x} )$

The points in the table must satisfy this exponential function.

We substitute the point,

$(0,3)$

to get,

$3 = a( {b}^{0} )$

This implies that,

$3 = a( 1 )$

$3 = a$

Our function now becomes,

$f(x) = 3( {b}^{x} )$

We gain, plug in another point yo find the value of b too.

Let us substitute
$(1,6)$

This implies that,

$6= 3( {b}^{1} )$

We divide through by 3 to obtain,

$2 = b$

Therefore the function is,

$f(x) = 3( {2}^{x} )$

The correct answer is A.

3 0

3 years ago

Read 2 more answers

Find the area of the shaded region.

mihalych1998 [28]

Answer:

351π cm^2.

Step-by-step explanation:

Area of shaded part = area of the large circle - area os small circle

= π * (13+7)^2 - π * 7^2

= 400π - 49π

= 351π.

8 0

2 years ago

The width of a rectangular garden is 9 feet, and its length is 12 feet. Three of these expressions equal the perimeter of the ga

soldi70 [24.7K]

Answer:

9+2 is not the expresssion

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

The average credit card debt for college seniors is $22,199 with a standard deviation of $5300. What is the probability that a s

noname [10]

Answer:

Step-by-step explanation:

The number of samples is large(greater than or equal to 30). According to the central limit theorem, as the sample size increases, the distribution tends towards normal. The formula is

z = (x - µ)/(σ/√n)

Where

x = sample mean

µ = population mean

σ = population standard deviation

n = number of samples

From the information given,

µ = 22199

σ = 5300

n = 30

the probability that a senior owes a mean of more than $20,200 is expressed as

P(x > 20200)

Where x is a random variable representing the average credit card debt for college seniors.

For n = 30,

z = (20200 - 22199)/(5300/√30) =

- 2.07

Looking at the normal distribution table, the probability corresponding to the z score is 0.0197

P(x > 20200) = 0.0197

3 0

3 years ago