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2 years ago

Please help, this makes no sense to me.

Mathematics

2 answers:

tamaranim1 [39]2 years ago

7 0

Answer:

Step-by-step explanation:

Keep in mind

-the fractions have to be EQUAL if they are equivalent fractions

-we multiply the numerator and denominator by the SAME number

-when comparing fractions think (how many slices / the size of the slice ) = (15 slices / size 20) is more than (12 slices / size 20)

Nat2105 [25]2 years ago

6 0

Answer:

$\textsf{left} \ \ \dfrac{3 \times 5}{4 \times 5}=\dfrac{15}{20}\\\\\\\ \textsf{right} \ \ \dfrac{3 \times 4}{5 \times 4}=\dfrac{12}{20}\\\\\\\dfrac{15}{20}>\dfrac{12}{20} \ ,\textsf{so} \ \dfrac34>\dfrac35$

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NO LINKS!!! This is NOT MULTIPLE CHOICE!!!

aleksley [76]

Answer:

Given equation: $y=(x+1)^2-2$

The function is a quadratic function in vertex form: $y=a(x-h)^2+k$

Translations

For $a > 0$

$f(x+a) \implies f(x) \: \textsf{translated}\:a\:\textsf{units left}$

$f(x-a) \implies f(x) \: \textsf{translated}\:a\:\textsf{units right}$

$f(x)+a \implies f(x) \: \textsf{translated}\:a\:\textsf{units up}$

$f(x)-a \implies f(x) \: \textsf{translated}\:a\:\textsf{units down}$

Parent function: $f(x)=x^2$

Translations

Translated 1 unit left: $f(x+1)=(x+1)^2$

Then translated 2 units down: $f(x)-2=(x+1)^2-2$

Therefore, translate the parent function by 1 unit left and 2 units down to produce the given equation.

4 0

3 years ago

Read 2 more answers

Graph y= x−2. PLZZ HELP

nataly862011 [7]

Explanation: To graph the equation y = x - 2, the idea is simple.

We pick three values for x, plug them into the

equation, and find the corresponding values for y.

In order to do this in an organized way, we set up a chart.

Down the left side we make a column for our x's, down the right side we make a column for our y's, and in the middle we make a column for the side of the equation that contains the x, in this case, x - 2.

So reading the chart from left to right, we have our x or what we plug into the equation, then we have the x - 2 or what happens to the x when we plug it into the equation, and finally we have our y or what we end up with after plugging x into the equation.

So our first step in filling out the chart is choosing

the x's that we want to plug into the equation.

When graphing lines, I always choose three x's,

a positive number, zero, and a negative number.

The easiest numbers to pick are usually 1, 0, and -1.

So for 1, we plug a 1 into the equation for x

and we have y = (1) - 2 or -1

For 0 we plug a 0 into the equation for x

and we have y = (0) - 2 or -2.

For -1 we plug a -1 into the equation for x

and we have y = (-1) - 2 or -3.

So our points are (1, -1), (0, -2), and (-1, -3).

I looked at the x and y column to find those points.

Since our domain is all real numbers, we can connect these points based on the pattern that they are forming on the graph which is a line.

5 0

3 years ago

Read 2 more answers

Alana ate breakfast at a restaurant. The bill came to $79.75. If she left 20% tip, how much was the tip?

Lana71 [14]

$79.75*0.2= 15.95
$79.75-15.95= $63.80
63.80+15.95= $79.75

Answer= $15.95

3 0

3 years ago

Which fraction, in lowest terms, is equivalent to the decimal 0.5?

BARSIC [14]

Answer:

1/2

Step-by-step explanation:

The decimal 0.5 is equal to the fraction 1/2.

it can also be, 0.5 represent the fraction 5/10.

8 0

3 years ago

Read 2 more answers

Match the property name with the appropriate equation. Use each once.

vagabundo [1.1K]

Answer:

19. Opposite of a Difference ↔ E. -(8 - 3·m) = 3·m - 8

20. Opposite of a sum ↔ A. -[(-r) + 2p] = -(-r) - 2p

21. Opposite of an Opposite ↔ F. -1[ -1(9 - 2w)] = 9 - 2w

22. Multiplication by 0 ↔ B. 160 - (3d + 2)(0) = 160 - 0

23. Multiplication by ↔ D. -1 -(4r + 3s) + t = (-1)(4r + 3s) + t

21. Distributive property ↔ C. 5(2 - x) = 10 - 5x

Step-by-step explanation:

19. Opposite of a difference is the difference of the opposites

20. Opposite of a sum is the sum if the opposites

21. Opposite of an opposite is the original number

22. Multiplication by 0- The result of multiplication by 0 is 0

23. Multiplication by -1 results in the change in sign of a number

24. Distributive property - Multiplying the sum or difference of two numbers by a number, will have the same result as multiplying each each of the addends by the number individually and adding the product together.

4 0

3 years ago