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levacccp [35]
4 years ago
13

Plz answer right away

Mathematics
2 answers:
Kobotan [32]4 years ago
5 0

Answer:

Step-by-step explanation:

7

12

+

3

6

=

7

12

+

3

6

=

7

12

+

1

2

=

7

12

+

6

12

=

7+6

12

=

13

12

(Decimal: 1.083333)

Alik [6]4 years ago
3 0

Answer:

1 whole and 1 over 12

Step-by-step explanation:

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The graph shows two polygons ABCD and A′B′C′D′.
stellarik [79]

Answer:

Translate ABCD down 1, then reflect it over the y-axis

and

Reflect ABCD over the y-axis, then translate down 1

Step-by-step explanation:

First of all, the two steps are the same, just in a different order

Second, if you look at the instructions you can see what would happen to the quadrilateral. Reflecting over the y-axis would make the shape flip horizontally (left to right), as shown in the image. This means the points on the left move to the right, and the points on the right move to the left. Top and bottom points stay the same. And the "translation" just means to slide. In both the answers, it says "translate 1 unit down", which just means "move 1 unit down", which is exactly what happens in the image

7 0
3 years ago
Read 2 more answers
What are the x- and y- coordinates of point E, which partitions the directed line segment from A to B into a ratio of 1:2?
Solnce55 [7]

<u><em>The coordinates of the points A and B are not given. We'll assume: A(3,1) B(12,-5)</em></u>

Answer:

<em>The coordinates of E are (6,-1)</em>

Step-by-step explanation:

<u>Partition of a Segment</u>

The length of segment directed from A(xa,ya) to B(xb,yb) can be decomposed in its x,y coordinates:

x_{AB}=x_b-x_a

y_{AB}=y_b-y_a

If a point E is to be in the segment and partition it into a ratio 1:2, then

\displaystyle \frac{x_{AE}}{{x_{EB}}=\frac{y_{AE}}{{y_{EB}}=\frac{1}{2}

But

x_{AE}=x_e-x_a

y_{AE}=y_e-y_a

x_{EB}=x_b-x_e

y_{EB}=y_b-y_e

Then we set the equation:

\frac{x_{AE}}{{x_{EB}}=\frac{1}{2}

2(x_e-x_a)=x_b-x_e

Operating and rearranging

3x_e=x_b+2x_a

Solving

\displaystyle x_e=\frac{x_b+2x_a}{3}=\frac{12+6}{3}

x_e=6

Similarily

\displaystyle y_e=\frac{y_b+2y_a}{3}=\frac{-5+2}{3}

y_e=-1

The coordinates of E are (6,-1)

8 0
4 years ago
Read 2 more answers
From the sum of a2−2ab+b2 and 2a2+2ab+b2 subtract the sum of a2−b2 and a2+ab+3b2
Sedaia [141]

Answer:

a^2-ab

Step-by-step explanation:

We need to find the sum of a^2-2ab+b^2 and 2a^2+2ab+b^2 first.

Adding a^2-2ab+b^2 + 2a^2+2ab+b^2

Combining like terms, we get

a^2+2a^2=3a^2

-2ab+2ab = 0

b^2+b^2=2b^2

Therefore,

a^2-2ab+b^2 +2a^2+2ab+b^2=3a^2+2b^2.

Now, we need to find the sum of a^2-b^2 \ \ and \ \ a^2+ab+3b^2..

Adding a^2−b^2+a^2+ab+3b^2.

Combining like terms, we get

a^2+a^2=2a^2

-b^2+3b^2=2b^2.

Therefore,

a^2−b^2+a^2+ab+3b^2=2a^2+ab+2b^2.

Now, subtracting

3a^2+2b^2 -(2a^2+ab+2b^2).

Distributing minus sign over second parenthesis, we get

3a^2+2b^2-2a^2-ab-2b^2.

Combining like terms,

3a^2-2a^2=a^2

2b^2-2b^2=0

Therefore,

3a^2+2b^2-2a^2-ab-2b^2=a^2-ab.

Therefore, the difference of the sum of a^2-2ab+b^2 + 2a^2+2ab+b^2 and a^2-b^2+a^2+ab+3b^2. is a^2-ab.

5 0
3 years ago
Sunshine High School claims that 72% of its students complete their homework on a daily basis. Ms. Carter surveyed 80 students a
zimovet [89]

Answer:

Option A)

z equals 0.60 minus 0.72 all over the square root of the quantity 0.72 times 0.28 over 80

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 80

p = 72% = 0.72

\hat{p} = 60\5 = 0.60

Formula for z-statistic:

z = \dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}

Putting the values, we get,

z = \displaystyle\frac{0.60-0.72}{\sqrt{\frac{0.72(1-0.72)}{80}}}\\\\z =\displaystyle\frac{0.60-0.72}{\sqrt{\frac{0.72(0.28)}{80}}} = -2.39

This, the correct answer is

Option A)

z equals 0.60 minus 0.72 all over the square root of the quantity 0.72 times 0.28 over 80

4 0
4 years ago
Can you break it down?
Oksanka [162]
No that's the simplest form you can get
6 0
4 years ago
Read 2 more answers
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