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gogolik [260]
3 years ago
6

21 and 22 plsssss I rlly needs (25p btw)

Mathematics
1 answer:
kari74 [83]3 years ago
6 0

"Without using a calculator" suggests you are supposed to have memorized the square roots of 2 and 3 to at least 3 decimal places. That is, you know

  • √2 ≈ 1.414
  • √3 ≈ 1.732

21. √8 = √(2²·2) = 2√2 ≈ 2.83 . . . . about 4/5 of the distance between 2 and 3

22. √75 = √(5²·3) = 5√3 ≈ 8.66 . . . about 2/3 of the distance between 8 and 9

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Solve the equation to get x
Mariulka [41]

Answer:

the answer is

Step-by-step explanation:

x=1/2y+5---i

4x+3y=-20 ----ii

putting value of x in eqn Ii

4×(1/2×y+5)+3y=-20

2y+5+3y=-20

5y+5=-20

5y=-20-5

5y=-25

y=-25/5

y=-5

putting value in eqn I

x=1/2×-5+5

x=-5/2+5

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4 0
2 years ago
If two sides of a triangle measure 19cm and 34cm, check all possible values for the third side: HELPPPP ASAP!!!!
GrogVix [38]

Answer: 13, 15, 21, 38, 52

because The total length of two sides of a triangle is always greater than the length of the third side => 34 + 19 > x

⇔ x < 53

=> x ∈ {13; 15; 21; 38; 52}

Step-by-step explanation:

3 0
3 years ago
an owl travels 8 1/3 miles an hour and a seagull travels 12 1/2 miles in 2/3 hour. which animal is faster?
Simora [160]
Seagull because the owl has 5 5/9 and the sea 8 1/3
5 0
3 years ago
Read 2 more answers
Which ordered pair is in the solution set of 3x-y=10
tia_tia [17]

B as if you plug the co-ordinates into the equation and it equals 10: (3x4)-2= 12-2 =10

A doesn't work as the answer is 20

C doesn't work as the answer is 14

D doesn't work as the answer is -20

3 0
4 years ago
Work out value of X​
lord [1]

Answer:

x=39

Step-by-step explanation:

The figure is a parallelogram

we know that

In a parallelogram opposite angles are congruent and consecutive angles are supplementary

In this problem

2x\°+(3x-15)\°=180\° ----> by consecutive interior angles

solve for x

5x-15=180

5x=180+15

5x=195

x=39

6 0
3 years ago
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