Glven the following system of equations, identify the type of system. y=-×+4 2x+2y= 8

Answer:

hi

Step-by-step explanation:

\( {5}^{2} + {x}^{2} = {7}^{2} \\ 25 + {x}^{2} = 49 \\ {x}^{2} = 49 - 25 \\ {x}^{2} = 24 \\ x = \sqrt{24} \)

have a nice day

The original price of the shirt was $68

We know that the price after a discount of the 20% and an added $3.80 in taxes is $58.20

Then we can write:

$58.20 = P*(1 - 0.2) + $3.80

Where the factor (1- 0.2) corresponds to a discount of 20%.

Solving that for P we will get:

P = ($58.20 - $3.80)/0.8

P = $68

That is the original price of the shirt.

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Answer: C

Step-by-step explanation:

Key features for the graph given in the problem will be-:Vertex (-1, -5), Axis of symmetry=> (x = -1), y-intercept (0,-3), Minimum=> (y=-5), Domain=> (All Real), Range=>( y >= -5)

Refering to the graph given in the problem(refer image attached).The key features of the graph can be given as:

The graph has an upward-opening form, an axis of symmetry at x = -1, a y-intercept at (0, -3), a minimum point at y = -5 (which is also the vertex), and it spans all real numbers on the x-axis (domain) while being larger than or equal to -5 on the y-axis (range).

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Answer:

-5/6

Step-by-step explanation:

slope = (difference in y)/(difference in x)

slope = (-3 - 2)/[3 - (-3)] = -5/6

Answer:

-5/6

Step-by-step explanation:

Answer:

=12x+42

Step-by-step explanation:

−3(4x+2)+6(4x+8)

Answer: 12x+42

Step-by-step explanation: −3(4x+2)+6(4x+8)

(−3)(4x)+(−3)(2)+(6)(4x)+(6)(8)

−12x+−6+24x+48

(−12x+24x)+(−6+48)

12x+42

Answer:

  -89

Step-by-step explanation:

The first term of the sequence is a1 = -12.

The common difference between terms is ...

  d = -13 -(-12) = -1

The generic term is given by ...

  an = a1 +d(n -1)

Then the 78th term is ...

  a78 = -12 +(-1)(78 -1) = -12 -77

  a78 = -89

The value of side TS is,

⇒ TS = 28

First, we are going to divide the figure and named new points X and Y as:

Now, we know that TS is the sum of TX and XS.

TS = TX + XS

Additionally, TX has the same length of HJ, so:

TX = HJ = 14

Now, we want to know the length of YK, and we can calculate it using the following equation:

LK = LY + YK

LY = HJ,

so, LY = 14

And, 42 = 14 + YK

42 - 14 = YK

28 = YK

Finally, since T and S are midpoints, the length of XS is the half of the length of YK. It means that XS is:

XS = YK/2

XS = 28/2

XS = 14

Therefore, TS is equal to:

TS = TX + XS

TS = 14 + 14

TS = 28

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Answer:

52

Step-by-step explanation:

8+5=13

13x8=104

104/2=52 (divided)

Answer:

52

Step-by-step explanation:

I took the test

The simple fraction is \(= \frac{x + 1}{2x + 1}r\)

In math, what is a fraction?

A fraction is a piece of the entire. In mathematics, the number is represented as a quotient, where the numerator and denominator are divided. Both are integers in a straightforward fraction.

                             Whether it is in the numerator or denominator, a complex fraction contains a fraction. The numerator and denominator of a correct fraction are opposite each other.

\(= \frac{r}{1 + \frac{1}{\frac{1 + 1/x }{} } }\)

\(= 1 + 1/x\)

= x + 1/x  we have

= \(\frac{1}{x + 1/x}\)

\(= \frac{x}{x + 1}\)

\(= 1 + \frac{x}{x + 1}\)

\(= \frac{ 2x + 1}{x + 1}\)

r%*x+1/(2x+1)

 \(= \frac{x + 1}{2x + 1}r\)

reduce to the appropriate fraction. The denominator was then brought up and the numerator down as I normalized.

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The complete question is -

Congress is debating a proposed law to reduce tax rates. If the current tax rate is r%, then the proposed rate after x years is given by this formula: r 1 1 1 1 x . Rewrite this formula as a simple fraction.

The  linear equation that model the above is h = 32 -2t and the height of fire after 8 hours is 16 inches

A linear equation is an equation in which the highest power of the variable is always 1. It is also known as a one-degree equation. The standard form of a linear equation in one variable is of the form Ax + B = 0. Here, x is a variable, A is a coefficient and B is constant.

Using the equation for a straight line and writing similar

h = mt + c

h = height, t = hours m and c are constants

at h = 24, t = 4

Equation becomes

24 = 4m + c--------------1

at h = 20, t = 6

20 = 6m + c---------------2

Subtract equation 2 from 1 so that the eqution reduces to

4 = -2m

m = 4/-2

m = -2

substitute m in equation 1

24 = 4( -2) + c

24 = -8 + c

c = 32

substituting m and c in he linear equation above we have

h = 32 - 2t

After 8 hours, the height h = 32 -2(8) which is 16 inches

In conclusion the linear equation is h = 32 - 2t and the height of fire after 8 hours is 16 inches

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Step-by-step explanation:

the inside expression of an absolute value expression can be positive or negative, but the result is only the positive one.

therefore, for our example here the negative case would be

2.5x - 6.8 = -12.9

which gives us

2.5x = -6.1

x = -6.1/2.5 = -2.44

and the positive case would be

2.5x - 6.8 = 12.9

and that gives us

2.5x = 19.7

x = 19.7/2.5 = 7.88

Answer:

$0.64 per cup

Step-by-step explanation:

There are 16 cups in 1 gallon, so the number of cups in 2 gallons is:

1 gallon: 16 cups

2 gallon = 2 x 1 gallon = 2 x 16 cups = 32 cups

So we need to find the price of each cup:

1 cup = ($20.48 / 32 cups) = $0.64 per cup.

Answer:

The standard error of the sulfate in a collection of 10 water samples is of 0.506 mg/L.

Step-by-step explanation:

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean \(\mu\) and standard deviation \(\sigma\), the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \(\mu\) and standard error \(s = \frac{\sigma}{\sqrt{n}}\).

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

Standard deviation of 1.60 mg/L.

This means that \(\sigma = 1.6\)

Collection of 10 samples:

This means that \(n = 10, s = \frac{1.6}{\sqrt{10}} = 0.506\)

The standard error of the sulfate in a collection of 10 water samples is of 0.506 mg/L.

Answer:

If you subtract 69 from 769 giving you 700 and divide by 2. You will be get 350 hamburgers and 419 cheeseburgers.

Answer:

(a)  graph iii)

(b)  graph v)

(c)  graph ii)

(d)  graph iv)

Step-by-step explanation:

All given equations are in vertex form:  y = (x - h)² + k

where (h, k) is the vertex of the parabola

The vertex is the turning point of the parabola, so the minimum point for parabolas that open upward, and the maximum point for parabolas that open downward.

Vertices of the given graphs:

i) (-3, 2)

ii) (-3, -2)

iii) (2, 3)

iv) (3, 2)

v) (-2, -3)

vi) (2, -3)

Part (a)

Given equation:  y = (x - 2)² + 3

Therefore, the vertex is (2, 3) → graph iii)

Part (b)

Given equation:  y = (x + 2)² - 3

Therefore, the vertex is (-2, -3) → graph v)

Part (c)

Given equation:  y = (x + 3)² - 2

Therefore, the vertex is (-3, -2) → graph ii)

Part (d)

Given equation:  y = (x - 3)² + 2

Therefore, the vertex is (3, 2) → graph iv)

Vertex form of parabola having vertex (h,k)

#1

Vertex (2,3)

#2

Vertex (-2,-3)

#3

Vertex (-3,-2)

#4

Vertex (3,2)

Answer:

Step-by-step explanation:

Evan has 43 and Brayden has 42. Reid has 76 and Bryce has 23. Which pair of boys has more? How much more do they have?

Reid and Rryce have more. If you add 43 and 42 you get 85 and when you add 76 and 23 you get 99. So now subtract 99 and 23 which is 76.

If each of X, Y, and N are positive integers, then the value of X+Y+N is 212.1

A collection of inequalities for which we consider common solution for all inequalities is called a system of inequalities.

WE are given that A red purse contains $7, and a black purse contains $10. Each package contains X red purses and Y black purses.

X = 7

Y = 10

If there are N packages (N ≥ 2) and the total value of them is $2021

X + Y = One packages

N packages = N(X + Y ) = 10 N

if each of X, Y, and N are positive integers, then;

10 N = 2021

N = 2021/10

N = 202.1

Therefore, X+Y+N = 10 + 202.1 = 212.1

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If you're referring to the actual 3D shape, that would be a rectangle. If you're referring to the shape in the middle, it would be a Trapezoid.

Answer:

A. Rectangle

Step-by-step explanation:

It is a rectangle, not any of the other shapes listed in the other answer choices.

Hope this helps! :)

Answer:

$ 6.20 Cents

Step-by-step explanation:

17 - 5.50= 11.5

11.50 - 5.30= 6.2

Add A Zero at the end

You Get 6.20

Answer:

a. 11.6 (rounded to nearest tenth)

b. Yes

Step-by-step explanation:

a²+b² = c²

6²+10² = c²

36²+100 = c²

136 = c²

√136 = √c²

11.6  = c

b. because 11.6 is the hypotenuse (longest side length) and there is 6 and 10 as the shorter leg lengths.

Answer:

u should better search the google or this site www.edkasa.edu.pk u will defiantly find the answer.

Answer:

Slope (m) = 2

Step-by-step explanation:

Here's the full equation⤵⤵⤵

\(y = 2x\)

Picture of graph (labeled) is above⤴⤴⤴

Hope this helped :)

Answer:

2

Step-by-step explanation:

two;)

Answer: 60 miles

Step-by-step explanation:

1 in. times 3 = 3 in

20 mi times 3 = 60 mi.

Answer: point B

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Absolute value negates positive or negative values, therefore the larger number wins (e.g |6|=6, |-7|=7)

I hope this helps and good luck!

Using the IQR, the only outlier in the data set is: 0.

IQR = upper quartile (Q3) - lower quartile (Q1).

Given the data set, 23,80,43,23,0,20,23,23,20,28:

Quartile (Q1): 20

Quartile (Q3): 31.75

IQR = 31.75 - 20 = 11.75

The outliers are data values that lie below:

Q1  - (1.5 × IQR) = 20 - (1.5 × 11.75) = 2.375

And data values that are above:

Q3 + (1.5 × IQR) = 31.75 + (1.5 × 11.75) = 49.375

Therefore, the only outlier is: 0.

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