Answer:
x = 3
Step-by-step explanation:
5(x-1)+3=13
Distribute the 5
(5x - 5) + 3 = 13
5x - 5 + 3 = 13
x = 3
X + y = 15
x - y =3
First you have to work out what two numbers add together to make 15, for example 1 and 14 or 5 and 10.
Then you have to work out which set of numbers have a difference of 3.
The numbers would be 6 and 9.
Once you have the two numbers, multiply them together:
6 x 9 = 54
Answer:
62.2° (or 1.1 rad)
Step-by-step explanation:
Let’s call the three points A Allen’s house, B Bob’s house, T the traffic light and α “angle of depression”.
Since we have a right triangle BTA, let’s first find out the angle ∡BTA based on its opposite side AB = 7 km and the hyponenuse TA = 15 km.
∡BTA = arcsin(AB/TA) ≈ arcsin(0.4667) ≈ 0.4855 rad or 27.82°
Now since the text says the connecting line TA “is vertical to the road”, α is the rest of the right angle when ∡BTA subtracted.
α ≈ 90° - 27.82° = 62.18°
or α ≈ 0.5 π rad - 0.4855 rad ≈ 1.09 rad
See above for properly rounded values.
The probability he will select a hockey card is 1/4, and then the probability that he selects a baseball card without replacement is 1/6.
Answer:
by force I suppose
Step-by-step explanation:
how is this mathematics?