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Vanyuwa [196]
4 years ago
13

Match the graph with its equation.

Mathematics
2 answers:
victus00 [196]4 years ago
6 0

Answer:

<em>B) -7x + 7y = -49</em>

Step-by-step explanation:

This is a y=x plot/line shifted by 7 units.

This can also be verified plugging in the values of x=0,y=-7 and x=7,y=0. The only equation which satisfies these points in Equation B. These points have been chosen as they're the intercepts of this plot.

Scilla [17]4 years ago
5 0

Answer:

-7x+7y=-49

Step by step Explanation:

This can be verified by giving x=0 and y= -7; x=7 and y=0. The second equation only assures this. Therefore the second equation is correct.

PLS mark me as brainliest

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Whch experision is equialent to 5(4x+3)-2x?<br><br> A.18x+15<br> B.18x+3<br> C.7x+8<br> D.2x+8
Mazyrski [523]

Answer:

The correct answer is option A. 18x + 15

Step-by-step explanation:

It is given an expression in variable x,

5(4x + 3) - 2x

<u>To simplify the given expression </u>

5(4x + 3) - 2x = (5 * 4x) + (5 * 3) - 2x   (open the bracket)

  = 20x + 15 - 2x

  = 20x - 2x + 15

  = 18x + 15

Therefore the correct answer is 18x + 15

The correct option is option A.  18x + 15

4 0
4 years ago
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goblinko [34]

Answer:

3/2 is the slope

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Write the equation of the line in either point-slope form or slope-intercept form.
Inga [223]

Answer:

<u>y = -3x - 0.25</u>

Step-by-step explanation:

Write the equation of a line that has a slope of -3 and passes through the point (1.25, -4).

We'll use the point-slope form of y = mx + b, where m is the slope and b the y-intercept (the value of y when x = 0).

We are told the slope, m, is -3.

y = -3x + b

We need to find a value for b that will cause the line to go through point (1.25,-4),  We can do that by entering this point in the equation we have this far:

y = -3x + b

-4 = -3(1.25) + b

-4 = -3.75 + b

-0.25 = b

<u>The equation is:   y = -3x - 0.25</u>

<u></u>

See attached graph.

6 0
2 years ago
Place the indicated product in the proper location on the grid. (4x^3+7y^3 z^ 4) ^2
ella [17]

Answer:

16x^{6} +56x^{3}y^{3} z^{4} +49y^{6} z^{8} \\

Step-by-step explanation:

To solve this type of problems first need to review some laws of exponents:

When you are multiplying the same base, you need to add the exponents.

x^{2} +x^{8}  = x^{2+8}  = x^{10}

When you are raising a base with power to another power, you should keep the base and multiply the exponents:

(x^{2} y^{5})^3 = x^{2*3} y^{5*3} = x^{6} y^{15}

Now for the expression (4x^{3} + 7y^{3} z^{4} )^2

Write the multiplying factors:

(4x^{3} + 7y^{3} z^{4} )(4x^{3} + 7y^{3} z^{4} )

Multiply the term 4x^{3}

(4x^{3} + 7y^{3} z^{4} )(4x^{3} + 7y^{3} z^{4} ) = 16x^{3+3} + 28x^3y^{3} z^{4}

Then multiply the term 7y^{3}z^{4}

(4x^{3} + 7y^{3} z^{4} )(4x^{3} + 7y^{3} z^{4} ) = 16x^{3+3} + 28x^3y^{3} z^{4}\\\\+ 28x^3y^{3} z^{4} + 49y^{3+3} z^{4+4}

Simplify the exponents:

(4x^{3} + 7y^{3} z^{4} )(4x^{3} + 7y^{3} z^{4} ) = 16x^{6} + 28x^3y^{3} z^{4}\\\\+ 28x^3y^{3} z^{4} + 49y^{6} z^{8}

Add like terms:

= 16x^{6} + 56x^3y^{3} z^{4} + 49y^{6} z^{8}

5 0
3 years ago
Given the figure. Find AC.
Angelina_Jolie [31]

Image is missing, so i have attached it.

Answer:

AC = 10sin 40°

Step-by-step explanation:

From the diagram attached, using terms in trigonometric ratio, AC is the opposite side, BC is the adjacent side and AB is the hypotenuse.

Thus, since we want to find AC;

We know that in trigonometric ratios; opposite/hypotenuse = sin θ

In the diagram, θ = 40° and AB = 10

Thus,

AC/10 = sin 40°

Multiply both sides by 10 to get;

AC = 10sin 40°

7 0
4 years ago
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