What is the first step in solving the following system of equations?

3 x + y = 23.
8 x + 2 y = 23.

Answer:

B

Step-by-step explanation:

Answer:

x+3y=0

Step-by-step explanation:

The standard form of the given equation is y = -1/3 x +4.

The given equation is y-2 = -1/3(x + 6)

The slope intercept form of a straight line is one of the most common forms used to represent the equation of a line. The slope intercept formula can be used to find the equation of a line when given the slope of the straight line and the y-intercept.

The standard form of the slope intercept form is y=mx+c.

Here, the given equation can be rewritten as

y-2 = -1/3 x + 2

y = -1/3 x + 2+2

y = -1/3 x +4

Therefore, the standard form of the given equation is y = -1/3 x +4.

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Answer: D

Step-by-step explanation: trust me

All integers higher than or equal to 10 and less than or equal to 20 are included in the domain.

The set of all potential inputs for a function is its domain. The domain of a function is the collection of all possible values that can be used as inputs, or alternatively, it is the full range of possible values for independent variables.

The set of all values that can be plugged into a function while ensuring that it exists and accepts a real number as a value is known as the domain of the function.

The range of values that we exists allotted to enter into our function is comprehended as the domain of a function. The x values for a function like f make up this set (x).

Therefore, the correct answer is option D. The domain consists of all integers greater than or equal to 10 and less than or equal to 20.

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Answer:

1,251 miles

Step-by-step explanation:

if 1/3 inch is 417 miles then one inch would be 3/3 so

417 x 3= 1,251 miles.

I hope this helps!

Answer:

Part A: There are 4 zeros of the polynomial function f(x)

Part B: The zeroes of the polynomial function f(x) are -4, -1, 0, 2 ⇒ C

Step-by-step explanation:

The zeroes of a function are the x-coordinates of the point of intersection between the graph of the function and the x-axis (x-intercepts) which means values of x at y = 0

Part A:

In the given graph

∵ The graph of the function f(x) = -[tex]x^{4}[/tex] - 3x³ + 6x² + 8x intersects the x-axis

   at 4 points

→ That means there are 4 values of x have y = 0

∴ The number of zeroes of the function is 4

∴ There are 4 zeros of the polynomial function f(x)

Part B:

∵ The graph intersects the x-axis at points (-4, 0), (-1, 0), (0, 0), (2, 0)

→ That means the values of x at y = 0 are -4, -1, 0, 2

∴ f(x) = 0 at x = -4, -1, 0, 2

∴ The zeroes of the polynomial function f(x) are -4, -1, 0, 2

Answer:

3

Step-by-step explanation:

V=πr2h

3

Solving for r

r=3V

πh=3·47.1

π·5≈2.99924

Answer:

3

Step-by-step explaination

Answer:

1/12 foot

Step-by-step explanation:

Answer:

12 inches

Step-by-step explanation: I misread the question

Answer:

x = -4

Step-by-step explanation:

-4x + 1 > 9

-4 * -4 + 1 = 13

13 > 9

Answer:

2 + 4 = f i s h

Hi the answer is f i s h fish f i s h

Answer:

2+4 is 100 B)

-K

Step-by-step explanation:

Answer:

C. volley principle

Step-by-step explanation:

Answer:

Linear equations can take several forms, such as the point-slope formula, the slope-intercept formula, and the standard form of a linear equation. These forms allow mathematicians to describe the exact same line in different ways.

hope this helps

Answer:

[tex]26.903^{\circ}[/tex]

Step-by-step explanation:

a = 77 m

b = 72 m

c = Distance between the tugboats = 35 m

[tex]m\angle C[/tex] = Angle between the cables

[tex]c^2=a^2+b^2-2ab\cos C\\\Rightarrow m\angle C=\cos^{-1}\dfrac{c^2-a^2-b^2}{-2ab}\\\Rightarrow m\angle C=\cos^{-1}\dfrac{35^2-77^2-72^2}{-2\times 77\times 72}\\\Rightarrow m\angle C=26.903^{\circ}[/tex]

The angle formed between the cables is [tex]26.903^{\circ}[/tex].

Answer: C. 10.2

Step-by-step explanation: because in decimal form 10.19803902 to the nearest  is 10.2

Answer:

C

Step-by-step explanation:

Answer:

x : 5

Step-by-step explanation:

I hope this is right! Good luck!

Answer:

82

Step-by-step explanation:

evaluate means to find the numerical value of the expression

substitute x=9 and y= -2 in the expression 10-4xy

10 -4*9*(-2) = 10+( -4 )(-2)*9= 10+8*9 =82

Answer:D. (5,0)

Step-by-step explanation:

The point which is a solution to the system of inequalities graphed here is (0, 5)

Hence the point which is a solution to the system of inequalities graphed here is (0, 5)

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Answer:

Option C

Step-by-step explanation:

Difference of the two expressions has been written as,

[tex]\frac{3x}{x^2-7x+10}-\frac{2x}{3(x-5)}[/tex]

To rewrite this expression as one expression,

First he factored the the denominators,

[tex]\frac{3x}{(x-2)(x-5)}-\frac{2x}{3(x-5)}[/tex]

Then Juan will make the denominators of both the terms equal,

For which he will multiply the second expression by [tex]\frac{x-2}{x-2}[/tex].

[tex]\frac{3x}{(x-2)(x-5)}-\frac{2x(x-2)}{3(x-5)(x-2)}[/tex]

Option C will be the correct option.

Answer:

C. Multiply the second fraction

Step-by-step explanation:

Answer: 8 and 1

Step-by-step explanation:

8+1=9

8-1=7

Answer: Fail to reject H0

Step-by-step explanation:

Given that:

P value = 0.26

α = 0.1

The values of both p and α can be compared in other to make a decision on whether to reject or fail to reject the Null hypothesis

Decisions :

If the p value > α (fail to reject null)

If p value < α ( Reject null)

In the scenario above :

0.26 > 0.1 ; p value > α

Since the p value is greater than alpha ; we fail to reject the Null

Answer: your answer is c

Step-by-step explanation: I did this in 4th grade XD

Answer:

[tex]m=4[/tex]

General Formulas and Concepts:

Pre-Algebra

Algebra I

Step-by-step explanation:

Step 1: Define

Find points from graph.

Point (0, 0)

Point (1, 4)

Step 2: Find slope m

The correct answer is 82% of 50 (41) / 170% of 30 (51) /65% of 80 (52)

Explanation:

The first step to know whether a value is greater than another is to find the value each percentage represents depending on the total. This process is shown below.

1. 65% of 80- This implies 80 is 100% and 85% needs to be found. Use the following formula:

80 / 100 = 0.8 x 65 = 52 or the total number divided by 100 and multiplied by the percentage you want to know

2. 82% of 50 - Repeat the same process

50 / 100 = 0.5 x 82 = 41

3. 170% of 30

30 / 100 = 0.3 x 170 = 51

4. Finally organize the values

82% of 50 (41)

170% of 30 (51)

65% of 80 (52)

Based on the information given about the percentages ,the ordering will be 82% of 50, 170% of 30, and 65% of 80.

It should be noted that 82% of 50 will be:

= 82% × 50

= 41

170% of 30 will be:

= 1.7 × 30

= 51

65% of 80 will be:

= 65% × 80

= 0.65 × 80

= 52

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Answer:

the answer is 260

Step-by-step explanation:

Plug 20 in for x in the equation.

Answer:

∠1 = 116

Step-by-step explanation:

Find the inner angle first, the inner angle will be represented with x, also a triangle is 180 degrees, so:

57 + 59 + x = 180

116 + x = 180

subtract 116 from both sides

x = 64

So now u have the inner angle, and a straight line is also 180 degrees, so:

64 + ∠1 = 180

subtract 64 from both sides

∠1 = 116

Answer:

Store B

Step-by-step explanation:

To figure out which store has the better deal, we need to figure out the price per unit. We can do this by dividing the price by the number of the shirts. Store A sells their t-shirts for 8.33 or 8 1/3 dollars per shirt, while Store B sells their shirts for 8 dollars a shirt. 8 < 8 1/3, therefore Store B has the better deal.

Answer:

B.

Step-by-step explanation:

If you do 3/25=5/x. You would get $41.6. Another way to show it is to divide 25/3 and 40/5, which would give us $8.3 and $8.

Answer:850

Step-by-step explanation:

I hope it helps

Answer:32

Step-by-step explanation:

so all you have to do to find all posible combinations is 2 to the 6 power (64

) and devide that by 2 sience each of the "winners" have half tails

Answer:

The slope-intercept equation is:

[tex]y=\frac{3}{2}x+1[/tex]

Step-by-step explanation:

Given the equation

[tex]y-4=-\frac{2}{3}\left(x-6\right)[/tex]

comparing it with the point-slope form of the line equation

[tex]y-y_1=m\left(x-x_1\right)[/tex]

where m is the slope

As we know that the slope of the perpendicular line is basically the negative reciprocal of the slope of the line, so

The slope of the perpendicular line will be: 3/2

The point-slope form of the equation of the perpendicular line that goes through (-2, -2) is:

[tex]y-y_1=m\left(x-x_1\right)[/tex]

[tex]y-\left(-2\right)=\frac{3}{2}\left(x-\left(-2\right)\right)[/tex]

[tex]y+2=\frac{3}{2}\left(x+2\right)[/tex]

writing the line equation in the slope-intercept form

[tex]y+2=\frac{3}{2}\left(x+2\right)[/tex]

subtract 2 from both sides

[tex]y+2-2=\frac{3}{2}\left(x+2\right)-2[/tex]

[tex]y=\frac{3}{2}x+1[/tex]

Thus, the slope-intercept equation is:

[tex]y=\frac{3}{2}x+1[/tex]

Here,

As the slope-intercept form is

[tex]y=mx+b[/tex]

where m is the slope and b is the y-intercept

so

[tex]y=\frac{3}{2}x+1[/tex]

m=3/2

b = y-intercept = 1

Therefore, the slope-intercept equation is:

[tex]y=\frac{3}{2}x+1[/tex]