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2 years ago

1 3/4 x 1 1/3 give your answer as a mixed number

Mathematics

2 answers:

dedylja [7]2 years ago

5 0

Answer:

2 1/3

Step-by-step explanation:

WARRIOR [948]2 years ago

4 0

Answer:

2 1/3

Step-by-step explanation:

1 3/4 is equivalent to 7/4

1 1/3 is equivalent to 4/3

7/ 4 x 4/3

reduce with greatest common factor so the two 4 are out (show a line crossing out the top and bottom 4 )

now you're left with 7 x 1/3 = 7/3

7/3 = 2 1/3

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Daisy measured the heights of 20 plants.

sergiy2304 [10]

Answer:

30.5 cm

Step-by-step explanation:

<em>Refer to attached</em>

Height of plants (h) >> Frequency >> Midpoint >> Frequency x midpoint
0 <h < 10 >> 1 >> 5 >> 5
10 <h < 20 >> 4 >> 15 >> 60
20 <h < 30 >> 7 >> 25 >> 175
30 <h < 40 >> 2 >> 35 >> 70
40 <h < 50 >> 3 >> 45 >> 135
50 <h < 60 >> 3 >> 55 >> 165

Sum of frequencies = 20

Sum of frequency x midpoint product = 610

<u>Mean height </u>

610/20 = 30.5 cm

5 0

3 years ago

Solve x2 + 8x − 3 = 0 using the completing-the-square method

nikklg [1K]

Hello :
x²+8x-3=0
(x² +2(4)x +4²) -4² -3 = 0
(x+4)²-19 = 0
(x+4)² = 19
x+4 = √19 or x+4 = - √19
x = √19 - 4 or x = -√19 - 4

4 0

3 years ago

-3x(x - 4) + 2 - (5 - x)

Readme [11.4K]

Answer:

$- 3x(x - 4) + 2 - (5 - x) \\ = - 3 {x}^{2} + 12x + 2 - 5 + x \\ = - 3 {x}^{2} + 13x - 3$

I hope I helped you^_^

3 0

2 years ago

Read 2 more answers

What's the square root of 5

dusya [7]

Answer:

2.236

Step-by-step explanation:

5 0

3 years ago

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A water sprinkler has a range of 5 meters as shown. The jet of water from the sprinkler sweeps out at an angle of 85° as the noz

telo118 [61]

I found the image that accompanied this problem.
We need to solve for the area of the sector.

A = n/360 * π * r²
A = 85/360 * 3.14 * 5²
A = 0.2361 * 3.14 * 25
A = 18.5347

Answer is C. 18.5 square meters.

6 0

3 years ago

Read 2 more answers