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4 years ago

Help please!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics

1 answer:

slava [35]4 years ago

4 0

The answer is -5.
Steps:
1. I multiplied the top equation by 2 and the bottom equation by 3 and then added them together.
2. 24x=72 is what you should have now. I divided each side by 24 to get x=3.
3. I plugged 3 in for x in one of the equations to get y=-8.
4. -8+3=-5.

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Pls help will give brainlist

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Answer:

WELL I DONT SEE THE PICTUE BUT WHATS THE PROBLEM?

Step-by-step explanation:

7 0

3 years ago

Two quadrilaterals are similar. The length of the row longest sides of the first quadrilateral are 40in and 60in. The lengths of

Andreyy89

Answer:

The sides of the first quadrilateral are 60 in, 40 in, 30 in and 12,5 in

The sides of the second quadrilateral are 24 in, 16 in, 12 in and 5 in

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its corresponding sides is proportional, and this ratio is called the scale factor

Arrange the sides of each quadrilateral from largest to smallest

First quadrilateral Second quadrilateral

Longest side=60 in Longest side=c in

Second side=40 in Second side=16 in

Third side= a in Third side= 12 in

Fourth side=b in Fourth side=5 in

$\frac{60}{c}=\frac{40}{16}=\frac{a}{12}=\frac{b}{5}$

Find the value of c

$\frac{60}{c}=\frac{40}{16}$

$c=60(16)/40$

$c=24\ in$

Find the value of a

$\frac{40}{16}=\frac{a}{12}$

$a=40(12)/16$

$a=30\ in$

Find the value of b

$\frac{40}{16}=\frac{b}{5}$

$b=40(5)/16$

$b=12.5\ in$

7 0

3 years ago

Compare the line passing through the points (−3, − 11) and (6, 4) to the line given by the equation y=32x−6.

butalik [34]

Answer:

See below

Step-by-step explanation:

Given points:

(-3, -11) and (6, 4)

Let's calculate it's equation:

y = mx +b
m = (4 + 11)/(6 +3) = 15/9 = 5/3
y = 5/3x + b
-11 = 5/3*(-3) + b ⇒ b = -11 + 5 = -6
y = 5/3x - 6

The given line:

y = 32x - 6

Compared, the lines have different slope (5/3 vs 32) but same y- intercept (-6), so both pass through the point of (0, -6). y= 32x - 6 has greater rate of change.

8 0

3 years ago

Steps for x squared plus y squared minus 8x + 12 y + 27 equals 0

Sphinxa [80]

X²+y²-8x+12y+27=0
x²+y²-8x+12y=-27
x²-8x +y²+12y = -27
x²-8x+16 + y+12y+36 = -27+16+36=25
(x-4)² + (y+6)² = 25

a circle centered at (4,-6) with a radius of 5

6 0

3 years ago

PLEASE HELP ME ANSWER ASAP!

Blizzard [7]

Either twice or more than twice. But I’d go with twice

8 0

4 years ago

Read 2 more answers