ratio for the first mix is 3:2 the ratio for the second mix is 4.5:3
Yes, since 3 times 1.5 is 4 and 2 times 1.5 is 3
Answer:
i) = 23 °C
ii) = 4.4° C
Step-by-step explanation:
i) The temperature on the surface of the planet.
At the surface of the planet the height is Zero
Therefore, X = 0
Thus; using the equation, the temperature, y will be;
y = 23 - 5x
y = 23 - 5(0)
<u> = 23 °C</u>
ii) the temperature change for every kilometer from the surface,
From the equation;
y = 23 - 5x
we take, y to be 1
Therefore;
1 = 23 -5x , subtracting 23 on both sides we get
-22 = -5x
x = -22/-5
<u> = 4.4° C</u>
Answer: x=40
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given the right angled triangle as shown, the angles A, B and C are related to sides a, b and c using the trigonometry ratio known as SOH CAH TOA.
The triangle has three sides namely the hypotenuse (AB), the opposite and adjacent. The hypotenuse is the longest side and the opposite side of the triangle depends on the acute angle in consideration.
When considering acute angle A, the opposite side will be the side facing the angle directly i.e side a.
According to the trigonometry ratio
SOH:
SinA = opposite/hypotenuse = a/c
CAH:
CosA = adjacent/hypotenuse = b/c
TOA:
TanA = opposite/adjacent = a/b
When considering acute angle B, the opposite side will be 'b' and adjacent will be a. Similarly as above;
SinB = b/c
CosB = a/c
TanB = b/a
Answer:
Option (3)
Step-by-step explanation:
From the picture attached,
Area of the green shaded region = Area of triangle ADC + Area of triangle ABE
Area of triangle ADC =
=
=
= 48 square units
Area of triangle ABE =
=
= 30 square units
Area of green shaded region = 48 + 30 = 78 square units
Option (3) will be the answer.