Answer:
-21
Step-by-step explanation:
3×(-7) = - 21
Three times minus seven equals minus twenty one.
Answer:
110.98 m
Step-by-step explanation:
you have a right triangle and you know the adjacent side to the 25 degree angle and are looking for the opposite side of the angle
tan of an angle = opposite side/adjacent side
Let d = depth of submarine
So, tan 25 = d/238
238 tan 25 = d
d = 110.98 m
Note: You must memorize the definitions of all the trig functions and then these types of problems will be easy. OK?
Answer:
x = -2
x = -10
Step-by-step explanation:
<u>Step 1 :</u><u> Rearrange</u>
x² + 12x + 20 = 0
<u>Step 2:</u><u> Factorise</u>
(x + 2)(x + 10)
<u>Step 3:</u><u> Find the roots / values of x</u>
Make each bracket equal zero.
(x + 2) = x = -2
(x + 10) = x = -10
Hope this helps!
Answer:
A) 200 is to 300 dollars
B)150 is to 350 dollars
C) 250 is to 250
Step-by-step explanation:
Part A) We want to divide $500 in the ratio 2:3 using the unitary method.
The total ratio is 2+3=5.
This means one unit is
=$100
Therefore $500 in the ratio 2:3 is 2*100=200 to 3*100=300
Part B) We want to divide $500 in the ratio 3:7 using the unitary method.
The total ratio is 3+7=10.
This means one unit is
=$50
Therefore $500 in the ratio 3:7 is 3*50=150 to 7*50=350
Part C) We want to divide $500 in the ratio 1:1 using the unitary method.
The total ratio is 1+1=2.
This means one unit is
=$250
Therefore $500 in the ratio 1:1 is 1*250=250 to 1*250=250
Answer:
Step-by-step explanation: