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3 years ago

Help guys!!!! pls & tyyyyy

Mathematics

1 answer:

TEA [102]3 years ago

8 0

Answer:

I think

A:(2,1)

B:(4,-2)

C:(4,-6)

D:(1,-3)

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16 mice because 4*4=16 or 4+4+4+4=16

Step-by-step explanation:

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3 years ago

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A dozen roses cost $60.00. What is the cost of two roses?

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Divide 60 by 12 and thats ur answer its 5...

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Two numbers have a sum of 18, and 4 times the first number minus the second number is equal to 17. What is the smallest number?

sammy [17]

Answer:

The smallest number is 7

Step-by-step explanation:

Using simultaneous equation;

x+y = 18.....(1)

4x-y = 17.....(2)

from equation (1)..

x+y = 18

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substitute y into equation (2)

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4x+x = 17+18

5x = 35

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y = 18-x

y = 18-7

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y=11

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4 0

3 years ago

A horizontal line contains points A, C, B. 2 lines extend from point C. A line extends to point E and another line extends to po

Effectus [21]

Answer:

Option (2).

Step-by-step explanation:

In the figure attached,

A, C and B are the points lying on a straight line.

2 lines EC and DC have been drawn by extending the lines from C to E and D respectively.

Ray CE is the angle bisector of ∠ACD.

That means CE divides ∠ACD in two equal parts.

m∠ACE = m∠DCE

Since m∠ACD = m∠ACE + m∠DCE

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3 years ago

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ASAP! I really need help with this question! No nonsense answers, and please attach the solution.

uysha [10]

Answer:

$\boxed{\sf Option \ 4}$

Step-by-step explanation:

$\sqrt{2x-3} +x=3$

Subtract x from both sides.

$\sqrt{2x-3} +x-x=-x+3$

$\sqrt{2x-3}=-x+3$

Square both sides.

$( \sqrt{2x-3})^2 =(-x+3)^2$

$2x-3=x^2-6x+9$

Subtract x²-6x+9 from both sides.

$2x-3-(x^2-6x+9 )=x^2-6x+9-(x^2-6x+9)$

$-x^2 +8x-12=0$

Factor left side of the equation.

$(-x+2)(x-6)=0$

Set factors equal to 0.

$-x+2=0\\-x=-2\\x=2$

$x-6=0\\x=6$

Check if the solutions are extraneous or not.

Plug x as 2.

$\sqrt{2(2)-3} +2=3\\ \sqrt{4-3} +2=3\\\sqrt{1} +2=3\\3=3$

x = 2 works in the equation.

Plug x as 6.

$\sqrt{2(6)-3} +6=3\\ \sqrt{12-3} +6=3\\\sqrt{9} +6=3\\3+6=3\\9=3$

x = 6 does not work in the equation.

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3 years ago

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