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3 years ago

Please help asap. 45 points

Mathematics

2 answers:

Levart [38]3 years ago

5 0

The answer is B. hope that help

ch4aika [34]3 years ago

5 0

2(10x^2) + 22x -12

2(10x^2) + 2(11x) - 12

2(10x^2) + 2(11x) + 2 (-6)

2(10x^2 + 11x) + 2 (-6)

2 (10x^2 + 11x - 6)

2 (10x^2 - 4x + 15x - 6)

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

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

Finally, your answer is 2 (5x - 2) (2x + 3)

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In AIJK, i = 270 cm, j = 170 cm and _K=122°. Find the area of AIJK, to the

Softa [21]

9514 1404 393

Answer:

19,463 cm²

Step-by-step explanation:

The area is given by the formula ...

A = (1/2)ij·sin(K)

Filling in the values, we find the area to be ...

A = (1/2)(270 cm)(170 cm)·sin(122°) ≈ 19,463 cm²

7 0

2 years ago

Order the steps to solve the equation log(x^2-15)=log(2x) form 1 to 5

nasty-shy [4]

Answer:x=-5 and x=3

Step-by-step explanation:

log(x^2-15)=log(2x)

Cancel log at both sides we get

x^2-15=2x

Collect like terms

x^2-2x-15=0

x^2-3x+5x-15=0

x(x-3)+5(x-3)=0

(x+5)(x-3)=0

x+5=0 x-3=0

x=-5 x=3

6 0

3 years ago

I need the answer asap pls! :)

AfilCa [17]

Answer:

18m

Step-by-step explanation:

Since the given traingles are similar

We get

$\frac{JK}{MN} = \frac{KL}{ML}$

$\frac{JK}{42} = \frac{21}{49}$

$JK = \frac{21 \times 42}{49}$

$JK = \frac{3 \times 7 \times 6 \times 7}{7 \times 7}$

$JK = 3 \times 6 = 18$

$JK = 18$

Hence the distance across river is 18m

7 0

1 year ago

PLEASE HELP ASAP!!!!!!

ioda

The answer is 2.54 feet

5 0

3 years ago

Could someone help me with this question please

Dima020 [189]

The longest worm is 3/4 as long as the shortest worm.

6 0

2 years ago