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3 years ago

Hello I need help ......

Mathematics

2 answers:

Andreas93 [3]3 years ago

8 0

okay so for number 7 you count by 7s in the x column and in the y column you count by ones

Nostrana [21]3 years ago

3 0

Answer:

dang im a little late

Step-by-step explanation:

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Help pls asap!! No links.

algol [13]

Answer:

Step-by-step explanation:

1. Do what is inside the parantheses

$4^{2} +3+2\\16+3+2 = 21$

$7^{2} +3(21)$

2. Simplify both terms

$7^{2} =49\\3(21) = 63\\49+63$

3. Solve

$49+63 = 112$

7 0

2 years ago

Read 2 more answers

If 2x − 3 = 7, evaluate 3x + 4.

timofeeve [1]

X equals 5 so 3x+4= 19 ..................

6 0

3 years ago

Read 2 more answers

If the circumference of a circle is increased by 50%, then its area will be increased by (a) 100% (b) 125% (c) 150% (d) 75%

Svetradugi [14.3K]

Answer:

Hi, There!

Option B 125% Is the Most Accurate Answer

Step-by-step explanation:

Circumference is the distance around a plane shape. So, it also measures length.

Length and area of two similar shapes are related by the formula

$\frac{A_{1} }{A_{2} } =(_{} \frac{I_{1} }{I_{2\\ ^{~2~} }}$

Where the A in both cases represents area and the L represents length. But here the Ls will represent circumference.

Since the circumference of the circle increased by 50%, then the new circumference becomes

$l_{2} = l_{1} + 0.5l_{1} =1.5l_{1}$

Now subtracting from the original area then

$2.25 - 1=1.25$

This means that the area was increased by 1.25, which means 125%

Hence option B is the correct answer

7 0

3 years ago

Use graphs and tables to find the limit and identify any vertical asymptotes of the function.

scZoUnD [109]

Answer:

The line x = 8 is our vertical asymptote

The limit of $\frac{1}{x-8}$ as x approaches 8 from the left is negative infinity; -∞

Step-by-step explanation:

We have been given the following function;

$\frac{1}{x-8}$

Considering that the function is rational, it will defined everywhere on the real line except where the expression in the denominator will be 0;

That is the function will not be defined where;

x - 8 = 0

solving for x yields;

x = 8

The function will be approaching the vertical line x = 8 asymptotically, meaning that the function will never touch or cross this line. We can therefore say that,

The line x = 8 is our vertical asymptote for the given function

The limit of $\frac{1}{x-8}$ as x approaches 8 from the left;

$\lim_{x \to8^{-} }\frac{1}{x-8}$

For x approaching 8 from the left, $x$ which implies that $x-8$

The denominator will be a negative quantity approaching 0 from the left, that is -∞.

Thus;

$\lim_{x \to8^{-} }\frac{1}{x-8}$ = -∞

Find the graph attached.

6 0

3 years ago

What is the equation of a line (in standard form) that passes through point A(1,-4) and has a slope of 3/4?

Anna35 [415]

Answer:

3x-4y=19

Step-by-step explanation:

Hi there!

We want to write the equation of the line in standard form that passes through the point (1, -4) and has the slope of 3/4

Standard form is written as ax+by=c, where a, b, and c are free integer coefficients, but a and b cannot be 0, and a cannot be negative

First, in order to find ax+by=c, we'll need to get slope-intercept form, which is y=mx+b, where m is the slope and b is the y intercept

Since we already know the slope (3/4), we can substitute it into the formula for y=mx+b.

y=3/4x+b

Now we need to solve for b

Since the equation passes through the point (1, -4), we can use it to solve for b

Substitute 1 as x and -4 as y.

-4=3/4(1)+b

Multiply

-4=3/4+b

Subtract 3/4 from both sides

-19/4=b

Now substitute -19/4 as b into the equation

y=3/4x-19/4

Now we have the equation in slope-intercept form, but remember, we want it in standard form

Since x and y are on the same side in standard form, subtract 3/4x from both sides

-3/4x+y=-19/4

Remember that a cannot be negative, and the coefficients are integers (they cannot be fractions)

So in order to clear the fractions and change the sign of the equation, multiply both sides by -4

-4(-3/4x+y)=-4(-19/4)

Multiply

3x-4y=19

Hope this helps!

8 0

3 years ago