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vova2212 [387]
3 years ago
14

Math HELP PLEASEE URGENT NOWWWWWW MATH!!!!

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

Answer:

is A

Step-by-step explanation:

Because i now how do this

Viefleur [7K]3 years ago
5 0

Answer:

A

Step-by-step explanation:

Answer is the first choice. you can tell by the notation.

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Black_prince [1.1K]
The triangle of height 5 units and base 7 units will be as follows:

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3 years ago
3 gallons of paint are used to paint 16 wooden sign how much paint did each sign use? between the two whole numbers does the ans
kkurt [141]
I think you should do it in a decimal idk if im right but in decimal form it is .1875
8 0
3 years ago
Find, correct to the nearest degree, the three angles of the triangle with the given vertices.
Leokris [45]

Answer:

angle CAB = 113.8 degree

angle ABC = 35.6 degree

angle BCA = 30.6 degree

Step-by-step explanation:

Given data:

A(1, 0, −1),

B(5, −3, 0),

C(1, 5, 2)

calculate the length of side by using the distance formula

so

AB = (5,-3,0) - (1,0,-1) = (4,-3,1)

AC= (1,5,2) - (1,0,-1) = (0,5,3)

|AB|

|AC| =\sqrt {(0 + 5^2+3^2)} = \sqrt{34}

From following formula, calculate the angle between the two side i.e Ab and AC

AB.AC = |AB|*|AC| cos ∠CAB

(4,-3,1).(0,5,3)

4*0 -3*5 +1*3

-12 =

cos ∠CAB = - 0.404

angle CAB = 113.8 degree

BA =B- A =  (1,0,-1) - (5,-3,0) = (-4,3,-1)

BC = (1,5,2)-(5,-3,0) = (-4,8,2)

|BA| = \sqrt{(26)}

|BC| = \sqrt {(4^2 + 8^2 + 2^2)} = \sqrt{(84)}

BA.BC = |BA|*|BC|* cosABC

(-4,3,-1).(-4,8,2) =\sqrt{(26)} * \sqrt{(84)} *cosABC

16+24-2

cos ∠ABC = 0.813

angle ABC = 35.6 degree

we know sum of three angle in a traingle is 180 degree hence

sum of all three angle = 180

angle BCA + 35.6 + 113.8 = 180

angle BCA = 30.6 degree

7 0
3 years ago
P(2,-8), Q(8,-8), R(8, -2), S(2,-2)<br> 180° rotation<br> I need help quickly
kompoz [17]

Answer:

P(-2,8)   Q(-8,8)   R(-8,2)  S(-2,2)

Step-by-step explanation: 180 degree rotation rule = (x,y) ---- (-x,-y)

ex : point B (-2, 7) will be B' (2, -7)

6 0
3 years ago
1. Simplity the following into lowest term <br>3x - 2 - 2x​
Yakvenalex [24]
The answer is X-2 ........
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3 years ago
Read 2 more answers
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