Answer:
Step-by-step explanation:
Since this is a right angled triangle:
tan(∅) = opposite side/adjacent side
In this triangle:
tan(25°) = x/19
x = 8. 86 ≅ 8.9
I don’t got the anwser but you can download math photo and use it for those type of questions
Isosceles triangle
ΔPQR:
∠R = ∠Q = (180° - 40°):2 = 70°
2x = 70°⇒ x = 35°
ΔSTV:
SV = TV
Răspuns:
125%
Explicație pas cu pas:
a și B sunt invers proporționale cu numerele 12 și 15
Proporționalitate inversă:
a = k / y
Prin urmare ;
a = k / 12 - - - (1)
b = k / 15 - - - (2)
Procent care reprezintă a de la b
a = 100%
b = x
k / 12 = 1
k / 15 = x
Înmulțirea încrucișată:
x * k / 12 = k / 15
x = k / 12 ÷ k / 15
x = k / 12 * 15 / k
x = 15/12
x = 1,25
1,25 * 100% = 125%
Answer:
x = 6
Step-by-step explanation:
<u>First, just to simplify things, </u><u>multiply </u><u>both sides by 6.</u>
On the left side, the sixes cancel out (6/6=1) and on the right side, you just multiply the numerator by 6. You're left with 5 = 30/x
<u>Next, </u><u>multiply </u><u>both sides by x</u>
On the left side is 5x, and on the right, the x's cancel out for the same reason the sixes canceled out in the first step. Now you have 5x=30
<u>To isolate x, </u><u>divide </u><u>both sides by 5</u>
5/5=1
30/5=6
x=6