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3 years ago

I NEED IT KNOW PLEASEEE

Mathematics

1 answer:

zzz [600]3 years ago

5 0

Answer:

360

Step-by-step explanation:

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Help me solve for A and B!

expeople1 [14]

Here we have one large triangle with two smaller triangles drawn inside. The two smaller triangles are similar.

Thus, a/12 = 12/16, or a/12 = 3/4, or 4a=36, or a = 9.

Find b in the same way: b/20 = 9/12 (and so on).

6 0

4 years ago

What is the solution of <br> y = 3x – 4 –3y = –9x + 12

AlexFokin [52]

9514 1404 393

Answer:

any solution of y = 3x -4

Step-by-step explanation:

The two equations describe the same line. There are an infinite number of solutions. Any values of x and y that satisfy either equation will satisfy both equations.

The graph shows the lines in different colors and textures, so you can see they are the same line.

5 0

3 years ago

8)What is the equation of a line that goes through the point (3, 12) and is perpendicular to the line given by the equation y =

grigory [225]

The slope of the first line is $m_1=\frac{-1}{3}$ .
To be perpendicular the slope of the second line must be the negative reciprocal of the first: $m_2=3$
Use the slope-intercept formula:
$y=mx+b$
Substitute known values:
$12=3(3)+b$
Solve for $b$ :
$b=3$
Complete the formula:
$y=3x+3$

4 0

4 years ago

Betsy has to sell carnival tickets worth at least $60. The price of a child ticket is $5, and the price of an adult ticket is $8

SIZIF [17.4K]

Answer:

A) 5x + 8y $\geq$ 60

Step-by-step explanation:

"At least" translates to the inequality symbol $\geq$ or "greater than or equal to."

7 0

4 years ago

Read 2 more answers

!TWELVE POINTS + BRAINLIEST ANSWER! Write the equation for an ellipse with y intercepts (0,-3) and (0, 3) and major axis of leng

Mandarinka [93]

Answer:

x²/25 + y²/9 = 1 or 9x² + 25y² = 225

Step-by-step explanation:

We have two points which is y intercepts (0,-3) and (0,3).

We know that the major axis is 2a and secondary axis is 2b

These two points are vertical top of the ellipse which they give us value of half secondary axis b = 3

The length of major axis is 2a = 10 => a = 10/2 = 5 => a = 5

The equation of the ellipse is:

x²/a² + y²/b² = 1 or b²x² + a²y² = a²b²

When we replace value of a and b we get:

x²/5² + y²/3² = 1 or 3²x² + 5²y² = 5² · 3² and finally

x²/25 + y²/9 = 1 or 9x² + 25y² = 225

God with you!!!

8 0

4 years ago