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2 years ago

Please help!!!!!!!11

Mathematics

2 answers:

Gelneren [198K]2 years ago

5 0

A=6
b= 5

these are the answers hope they are correct

jeyben [28]2 years ago

3 0

Answer:

a = 6 , b = 5

Step-by-step explanation:

using the rule of radicals

$\sqrt{a}$ × $\sqrt{b}$ = $\sqrt{ab}$

then

$\sqrt{180}$

= $\sqrt{36(5)}$

= $\sqrt{36}$ × $\sqrt{5}$

= 6 $\sqrt{5}$

with a = 6 and b = 5

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If two cards are drawn out of a deck WITH replacement, what's the probability that you draw a red card and then an Ace? ** Remem

katen-ka-za [31]

Answer:

Step-by-step explanation:

The probability of drawing a red card is 1/2, since half of the cards in a deck are red. The probability of drawing an ace from a deck is 1/13, since there is an equal chance to pick any of the 13 numbers.

P(red card and ace)= P(red card)*P(ace)=1/2 * 1/13=1/26

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3 years ago

Can someone help me 5-13 please?

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Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

Use intercepts to graph the linear equation -2x+7y=-21 Question 2

Anna11 [10]

Answer:

The point representing the y-intercept is: (0, -3)

The black dot represents the y-intercept on the attached graph. It is very clear at y = 0, x = -3.

The point representing the x-intercept is: (10.5, 0)

The red dot represents the x-intercept on the attached graph. It is very clear at x = 0, y = 10.5

Step-by-step explanation:

Given the linear equation

-2x+7y=-21

Determining the y-intercept

We know that the value of y-intercept can be determined by setting x = 0, and determining the corresponding value of y.

substituting x = 0 in the equation

-2x+7y=-21

-2(0) + 7y = -21

0+7y = -21

7y = -21

divide both sides by 7

7y/7 = -21/7

y = -3

Therefore, the point representing the y-intercept is: (0, -3)

The black dot represents the y-intercept on the attached graph. It is very clear at y = 0, x = -3.

Determining the x-intercept

We know that the value of x-intercept can be determined by setting y = 0, and determining the corresponding value of x.

substituting y = 0 in the equation

-2x+7y=-21

-2x+7(0) = -21

-2x + 0 = -21

-2x = -21

divide both sides by -2

-2x / -2 = -21 / -2

x = 21/2

x = 10.5

Therefore, the point representing the x-intercept is: (10.5, 0)

The graph of the linear equation containing the y-intercept (0, -3) and x-intercept (10.5, 0) is shown and attached below.

The red dot represents the x-intercept on the attached graph. It is very clear at x = 0, y = 10.5

Please check the attached graph.

8 0

3 years ago

Ab+d=5c solve for b.

Law Incorporation [45]

Answer:

(5c-d)/a = b

Step-by-step explanation:

First you would bring the d to the right side of the equation

ab=5c -d

Then, you will divide the right side of the equation by a to find the value of b

(5c-d)/a =b

Hope this helps!!!

6 0

3 years ago

Which choice would transform the rectangle to quadrant IV?

8090 [49]

Answer:

reflect over the x-axis

Step-by-step explanation:

Transformation is the movement of point from its initial location to a new location. Types of transformation is rotation, reflection, translation and dilation.

If a point A(x, y) is rotated 180° clockwise about the origin the new position would be A'(-x, -y)

If a point A(x, y) is reflected over the y-axis the new position would be A'(-x, y).

If a point A(x, y) is reflected over the x-axis the new position would be A'(x, -y)

If a point A(x, y) is translated a units left the new position would be A'(x-a, y).

The rectangle has points at (2, 2), (2, 5), (7,2), (7,5). If the rectangle is reflected over the x-axis the new position would be at (2, -2), (2, -5), (7, -2), (7, -5) which is at the fourth quadrant

4 0

3 years ago