3 years ago

7th grade math homework

Mathematics

2 answers:

solong [7]3 years ago

6 0

Hi hi I hope you know I’m not

Sedbober [7]3 years ago

6 0

Answer:

Step-by-step explanation:

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Avertical lino goes through tho point (3,4). What is the equation of that line?

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Is 100mm or 1dm GREATER LESS THAN OR EQUAL?

fredd [130]

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3 years ago

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What is the length of JK¯¯¯¯¯, to the nearest tenth of a millimeter? 4.5 mm 5.6 mm 8.3 mm 19.9 mm A horizontally-aligned scalene

Leokris [45]

Answer:

5 = side a

3 = side c

angle B = 62 degrees

JK is side b

Use the Law of Cosines to find the length of side b.

b^2 = a^2 + c^2 − 2ac cos(B)

b^2 = (5^2 + 3^2) − ( 2 x 5 x 3) cos(62°)

b^2 = (25 + 9) − 30 x 0.469

b^2 = 34 - 30 x 0.469

b^2 = 34 - 14.084

b^2 = 19.916

b = √19.916

b = 4.463

Rounded to the nearest tenth is 4.5 mm.

Hope this helps!

Step-by-step explanation:

4 0

3 years ago

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Solve the simultaneous equations<br> 4x+y = 10<br> x - 5y = 13

Lina20 [59]

Answer:

1: x-intercept(s): ( $\frac{5}{2}$ ,0)

y-intercept(s): (0,10)

2: x-intercept(s): (13,0)

y-intercept(s): (0,− $\frac{13}{5}$ )

Step-by-step explanation:

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3 years ago

7th grade math homework​

7th grade math homework