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3 years ago

PLEASE HELP ME!!!!

Mathematics

1 answer:

coldgirl [10]3 years ago

7 0

I don't have the answer but all you need to do is divide $3.09 by 20 and $2.09 by 12 and see which is less

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What is the standard form of x/4 - y/3 =1 and 5/x - 2/y=7.

kompoz [17]

You can multiply both sides by a number that will get rid of the denominators. For ex. you can multiply the first equation by 12 because 4 and 3 both go into 12 evenly. MAKE SURE YOU MULTIPLY THE OTHER SIDE BY 12 AS WELL! Therefore, 12(x/4) - 12(y/3) = 12(1), or 3x - 4y = 12

5 0

4 years ago

Triangle ABC with vertices A(4, −6), B(2, −8), and C(−10, 4) is dilated by a scale factor of 2 to obtain triangle A′B′C′. Which

ira [324]

Answer:

It is similar to triangle ABC and has coordinates A′(8, −12), B′(4, −16), and C′(−20, 8)

Step-by-step explanation:

Dilated triangles are never congruent, only similar (unless the dilation factor is exactly 1).

The coordinates of an image dilated about the origin are those of the pre-image multiplied by the dilation factor. For example,

A' = 2A

A'(8, -12) = 2×A(4, -6)

These facts are all you need to know to choose the correct answer (shown above).

3 0

3 years ago

Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions:

Sav [38]

Answer:

:Part A) The graph in the attached figure (see the explanation)

Part B) The ordered pair is not included in the solution area for the system (see the explanation)

Step-by-step explanation:

Part A) we have

$y$ ----> inequality A

The solution of the inequality A is the shaded area below the dashed line $y=4x-8$

The slope of the dashed line is positive

The y-intercept of the dashed line is (0,-8)

The x-intercept of the dashed line is (2,0)

$y\geq -\frac{5}{2}x+5$ ----> inequality B

The solution of the inequality B is the shaded area above the solid line $y=-\frac{5}{2}x+5$

The slope of the solid line is negative

The y-intercept of the solid line is (0,5)

The x-intercept of the solid line is (2,0)

The solution of the system of inequalities is the shaded area between the dashed line and the solid line

see the attached figure

Part B) is the point (5, -8) Included in the solution area for the system?

we know that

If a ordered pair is a solution of the system of inequalities, then the ordered pair must satisfy both inequalities

Substitute the value of x=5, y=-8 in each inequality and then analyze the results

Inequality A

$-8$

$-8$ ----> is true

the ordered pair satisfy inequality A

Inequality B

$-8\geq -\frac{5}{2}(5)+5$

$-8\geq -7.5$ ---> is not true

the ordered pair not satisfy the inequality B

therefore

The ordered pair is not included in the solution area for the system

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3 years ago

Total sf of 32 x 576 x 148 x 558

sertanlavr [38]

The answer would be 1522188288? and rounded to 3 sf would be 1520000000?

4 0

4 years ago

Find the value of the expression. x² + y for x1= 5 and y = 6

Elina [12.6K]

31. 5 times 5 is 25 then add 6 you get 31

8 0

3 years ago