All categories

2 years ago

I dont know…………………..

Mathematics

1 answer:

Marysya12 [62]2 years ago

5 0

Answer:

$-3\sqrt{3}$

Step-by-step explanation:

$-4\sqrt{12}+\sqrt{75}$

$-4\sqrt{4*3}+\sqrt{25*3}$

$-4\sqrt{4}\sqrt{3}+\sqrt{25}\sqrt{3}$

$-4(2)\sqrt{3}+5\sqrt{3}$

$-8\sqrt{3}+5\sqrt{3}$

$-3\sqrt{3}$

You might be interested in

What is the equation of the following line? Be sure to scroll down first to see all answer options. (0,3) (3,0) A. y = -x + 3 B.

qaws [65]

The correct answer is Choice A.

If you plot the points on a graph, you will see that there is a slope of -1 and the y-intercept is (0, 3).

This matches the equation of y = -x + 3 in Choice A.

4 0

3 years ago

Simplify? 6(2 - 7v) - 4(-6v + 7)

iragen [17]

Answer:

-18v - 16

Step-by-step explanation:

6(2 - 7v) - 4(-6v + 7)

= 6×2 - 6×7v - 4×(-6v) -4×7

= 12 - 42v + 24v - 28

= -18v - 16

4 0

3 years ago

Ada, Betty, Chris and David have $45 in total Ada gota 52 fromBetty, Chris tripleshis money and Davids money is cut by hall four

andrezito [222]

Using a system of equations, it is found that initially Ada has $0.385.

For the system, we have that the variables are:

x is Ada's amount.
y is Betty's amount.
z is Chris's amount.
w is David's amount.

$45 total, hence:

$x + y + z + w = 45$

Ada gets 2 from Betty, hence:

$x + 2 = y - 2$

$x = y - 4$

$y = x + 4$

Chris triples his money and David's money is cut by half four of them have the same amount, hence:

$x + 4 = y = 3z = \frac{w}{2}$

Then:

$3z = x + 4$

$z = \frac{x + 4}{3}$

$x + 4 = \frac{w}{2}$

$w = 2x + 8$

Solving for w, we find Ada's initial amount.

$x + y + z + w = 45$

$x + x + 4 + \frac{x + 4}{3} + 2x + 8 = 45$

$4x + 12 + \frac{x + 4}{3} = 45$

$12x + 36 + x + 4 = 45$

$13x = 5$

$x = \frac{5}{13}$

$x = 0.385$

Initially, Ada has $0.385.

A similar problem is given at brainly.com/question/6120515

5 0

2 years ago

consider quadrilateral ABCD as graphed above. rotate ABCD 90° clockwise about the origin, then dilate with a scale factor of 3/2

saw5 [17]

Answer:

A”=three possible answers (10.5) (21/2) or (10 1/2)

B”=9

C”=3

D”=(4.5) (9/2) or (4 1/2)

Step-by-step explanation: just cause

5 0

3 years ago

Read 2 more answers

Please help with this one question thanks so much in advance yall :-)

Rus_ich [418]

Is the question asking f(g(x))? If so the answer is 4x+20

6 0

3 years ago