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3 years ago

Hey! can you please do these 5 questions correctly? Thanks and i need answers ASAP :)) (will give 20 points and brainliest)

Mathematics

1 answer:

max2010maxim [7]3 years ago

4 0

Answer:

6.) 13 > c; open; left

7.) -9 < s; open; right

8.) 16 $\geq$ j; closed; left

9.) -16 $\leq$ z; closed; right

10.) 18 < w; open; right

Explanation:

Open (exclusive) whenever the sign is > and <. Closed (inclusive) whenever the sign is $\geq$ and $\leq$ . Goes to the left if the letter has the less than(#>c, c<#) or the less than and equal to(# $\geq$ c, c $\leq$ #) sign points towards it. Goes to the right if the letter has the greater than(#<c, c>#) or the greater than and equal to(# $\leq$ c, c $\geq$ #) sign points towards it. For the first part of the the questions just move all of the numbers to one side and the variables to the other.

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For a constant function, the y-coordinate is __________ for every pair of points selected, so the average rate of change always

sergij07 [2.7K]

In mathematics, a constant function is one defined in which a function whose output value (y) is the same for every value of the input variable (x). Therefore this means that whatever is the value for x, the value of y would always be the same. Hence we can say that the function is a straight horizontal line in a Cartesian plane.

Since the value of y does not change, and the average rate of change has the formula:

average rate of change = (y2 – y1) / (x2 – x1)

So y2 – y1 = 0 therefore average rate of change is also zero.

Hence to complete the sentence:

For a constant function, the y-coordinate is <u>the same</u> for every pair of points selected, so the average rate of change always has a value equal to <u>zero</u>.

4 0

3 years ago

The map shows the intersection of three roads. Malcom Way intersects Sydney Street at an angle of 162°. Park Road intersects Syd

Y_Kistochka [10]

Answer:

The angle at which malcom Way intersects Park Road = 111 °

Step-by-step explanation:

Malcom Way intersects Sydney Street at $\theta_{1}$ = 162 °

Park Road intersects Sydney Street at $\theta_{2}$ = 87 °

The angle at which Malcom Way intersects Park Road $\theta_{3}$ = ?

We know that

$\theta_{1} + \theta_{2} + \theta_{3} = 360$

$\theta_{3} = 360 - \theta_{1} - \theta_{2}$

$\theta_{3} = 360 - 162 - 87$

$\theta_{3} = 111$ °

Therefore the angle at which malcom Way intersects Park Road = 111 °

6 0

3 years ago

On a certain hot summer day, 481 people used the public swimming pool. The daily prices are 1.25 for children and 2.25 for adult

spayn [35]

Answer:the number of children that swam in the public pool that day is 222

the number of adult that swam in the public pool that day is 259

Step-by-step explanation:

Let x represent the number of children that swam in the public pool that day.

Let y represent the number of adult that swam in the public pool that day.

On a certain hot summer day, 481 people used the public swimming pool. This means that

x + y = 481

The daily prices are 1.25 for children and 2.25 for adults. The receipts for admission totaled to 86.25. This means that

1.25x + 2.25y = 860.25 - - - - - - - -1

Substituting x = 481 - y into equation 1, it becomes

1.25(481 - y) + 2.25y = 860.25

601.25 - 1.25y + 2.25y = 860.25

- 1.25y + 2.25y = 860.25 - 601.25

y = 259

Substituting y = 259 into x = 481 - y, it becomes

x = 481 - 259

x = 222

8 0

4 years ago

Help for 17 points. <br><br>Easy

Cerrena [4.2K]

The exponential function that represents the table is $y =2\times 2^x$

<h3>What is an exponential function?</h3>

An exponential function is any function that has its constant raised to the power of an argument.

An exponential function is represented as:

$y = ab^x$

Where:

a represents the initial value
b represents the rate

From the table we have the following ordered pair

(x,y) = {(0,2) (1,8)}

So, we have:

$y = ab^x$

$2 = a \times b^0$

$a = 2$

Also, we have:

$y = ab^x$

$8 = 2 \times b^1$

$8 = 2 \times b$

Divide both sides by 2

$b =4$

So, we have:

$y = ab^x$

$y =2\times 2^x$

Hence, the exponential function is:

$y =2\times 2^x$

Read more about exponential functions at:

brainly.com/question/11464095

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3 years ago

The sum of two fractions is 2/3.<br> One fraction is 1/2.<br> What is the other fraction?

Cerrena [4.2K]

Answer:

0.5/3

Step-by-step explanation:

1/2 can be turned into 2/4, which means that to be 1/3, it has to be 1.5/3. 1.5/3 + 0.5/3 equals 2/3.

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2 years ago

Read 2 more answers