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olga nikolaevna [1]
3 years ago
6

Plz help meeeeeeeee You must make a constructive response and this is 8th Grade Math

Mathematics
2 answers:
natulia [17]3 years ago
8 0

Answer:

5 \sqrt{18}  -  \sqrt{32}  \\  = 5 \sqrt{9 \times 2}  -  \sqrt{4 \times 4 \times 2} \\  = 5 \times 3 \times  \sqrt{2}   - 2 \times 2 \times  \sqrt{2}  \\  = 15 \sqrt{2}  - 4 \sqrt{2}  \\  =  \boxed{11 \sqrt{2} }

<h3>11√2 is the right answer.</h3>
Natali [406]3 years ago
7 0

Answer:

I'm in 10th grade so I'll see what I can do and will answer to the best of my ability.

Step-by-step explanation:

What Julie did wrong was, she did simplify she just did it wrong. She used 4*8 which does equal 32 but 8 can't be simplified anymore than that. If she would of used 2*16 then her answer would be right.

Hope this helps!

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Pls work out and give detail. Use the slope formula to determine the slope of each line.
kolbaska11 [484]

Answer:

m=0

Step-by-step explanation:

Given

See attachment

Required

Determine the slope of the line

From the attachment, we have the following points

(x_1,y_1) = (-4,1)

and

(x_2,y_2) = (3,1)

The slope m is then calculated using:

m = \frac{y_2- y_1}{x_2 - x_1}

Substitute values for the x's and y's

m = \frac{1-1}{3 - (-4)}

m = \frac{1-1}{3 +4}

m = \frac{0}{7}

m=0

<em>Hence, the slope is 0</em>

7 0
3 years ago
If x = y + z and x + y =6 and x = 10, then z = _____?
7nadin3 [17]
X+y=6
x=10

10+y=6
y=-4

10=-4+z
-4+z=10
z=10+4
z=14

So the correct answer is 14
4 0
3 years ago
Read 2 more answers
17.45 how do you mixed numbers and reduce
Vadim26 [7]

<em>Hello!</em>

<em>17.45 as a mixed fraction is </em><em>17 9/20</em><em>.</em>

<em>If this is not correct, please comment below and I will try my best to find the right answer.</em>

5 0
3 years ago
Read 2 more answers
What is the area of ruth's mural?
pentagon [3]

Answer:

Step-by-step explanation:

Comment

The shape consists of a rectangle on the bottom and a trapezoid on the top.

Rectangle

A rectangle has a very simple Area formula. It is Area = L*W. In this case the L = 14 m and is horizontal. The width is at right angles to the length and is marked as 3.

Area = L * w

L = 14

w = 3

Area = 14 * 3 =                            42 m^2

Trapezoid

The trapezoid is a bit more complicated and some things have to be found. First of all b1 is the first base of the trapezoid. It is parallel to and equal to  the Length of the rectangle. b2 is marked 10 meters. The height is just a bit more complicated. The total height of the figure is 8 m. You can't count the 3 m of the rectangle as part of the height because b1 comes only to the top of the rectangle. The height is 8 - 3 = 5

Area = 1/2(b1 + b2)*h/2

b1 = 14

b2 = 10

h = 8 - 3 = 5

Area = 1/2 ( 14 + 10) * 5 / 2

Area = 1/2 (24)*5

Area = 12 * 5

Area =                                      <u>    60 m^2</u>

Total Area                                  102 m^2

8 0
2 years ago
Divide £ 45 among 3 person so that their share are in the ratio 4:5:6
NISA [10]

Answer:

12, 15, 18

Step-by-step explanation:

4x+5x+6x=45

15x=45

x=3

4x=12, 5x=15, 6x= 18

6 0
3 years ago
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