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3 years ago

Number them by order please

Mathematics

2 answers:

enot [183]3 years ago

6 0

1. D

2. B.

3. A

diskskjdnskaksnsbskksjshsbkakaabahakaksbab

Igoryamba3 years ago

5 0

1. D
2. B
3. A
Hope this help :)

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(HELPPP PLSSS) A group of friends goes out for lunch. The total bill, excluding tax, is $22. IF tax on the meal is 6% and if a 2

Over [174]

Answer:

22*1.06 = cost of meal with tax = 23.32

22*.20 = tip on the pre-tax cost = 4.40

Total = $27.72

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

3. What three numbers are the Pythagorean triple generated by using 4 for x and 1 for y. Remember to use the formulas:

Gnom [1K]

Given:

The three equations for the three numbers are

$a=x^2-y^2$

$b=2xy$

$c=x^2+y^2$

To find:

The Pythagorean triple generated by using 4 for x and 1 for y.

Solution:

Substituting x=4 and and y=1 in the given equations, we get

$a=4^2-1^2$

$a=16-1$

$a=15$

In the same way find b and c.

$b=2(4)(1)$

$b=8$

The third number is

$c=4^2+1^2$

$c=16+1$

$c=17$

The required Pythagorean triple is 8, 15, and 17.

Therefore, the correct option is C.

5 0

3 years ago

15% of what number is 90

maw [93]

Let the number be x

15% = 90
1% = 6
100% = 6 x 100 = 600

8 0

3 years ago

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What is this in vertex form

Lyrx [107]

Answer:

(x + 1)² + 4

Step-by-step explanation:

the equation of a parabola in vertex form is

y = a (x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

to obtain this form use the method of completing the square

• add/subtract (half the coefficient of the x-term)² to x² + 2x

= x² + 2(1)x + 1 - 1 + 5

= (x + 1)² + 4 ← the second option

3 0

3 years ago

Solve the equation and show all work. 4|x + 1/3| = 20 <br> i'm kind of stuck hhh

34kurt

Absolute value is a function that takes some number and outputs the size of that number, regardless of the sign. By definition, $|x|=x$ if $x\ge0$ , and $|x|=-x$ if $x$ .

For example,

|2| = 2 because the input 2 is positive, so the input is unchanged;
|-3| = -(-3) = 3 because the input -3 is negative, so the sign is switched.

What this means for this problem is that there are two cases to consider:

If $x+\frac13\ge0$ , then $\left|x+\frac13\right|=x+\frac13$ , so that

$4\left(x+\dfrac13\right)=20\implies x+\dfrac13=5\implies\boxed{x=\dfrac{14}3}$

On the other hand, if $x+\frac13$ , then $\left|x+\frac13\right|=-\left(x+\frac13\right)$ , so

$-4\left(x+\dfrac13\right)=20\implies x+\dfrac13=-5\implies\boxed{x=-\dfrac{16}3}$

6 0

4 years ago