Answer:
a) 30cm²
b) 8.75cm²
c) 30cm²
Step-by-step explanation:
a) Area of a triangle = 1/2 × base × perpendicular height
= 1/2 × 12 × 5
= 30cm²
b) Area of a triangle = 1/2 × base × perpendicular height
= 1/2 × 3.5 × 5
= 8.75cm²
c) Area of a triangle = 1/2 × base × perpendicular height
= 1/2 × 5 × 12
= 30cm²
Hᴇʏ! Hope that I can help!Problem 1 Steps: divide both sides by 25, solve<span> logarithm
Problem 1 Answer: </span>
Problem 2 Steps: simplify, solve logarithm
Problem 2 Answer:
Problem 3 Steps: rewrite using logarithm and solve
Problem 3 Answer:
If you were helped by my answer, remember that I worked really hard on it. Please click the [ ♥ ᴛʜᴀɴᴋs ] button below and give me a rating of ★★★★★ to show your appreciation.
Answer:
<em>From left to right: 54 deg, 51 deg, 47 deg</em>
Step-by-step explanation:
From the bottom right triangle:
105 + 28 + x = 180
x + 133 = 180
x = 47
The lower right triangle has angles measuring 28, 105 and 47.
The lower unknown angle of the upper right triangle is vertical to the 47 deg angle, so it also measures 47 deg.
Now we calculate the upper unknown angle of the upper triangle.
82 + 47 + y = 180
y + 129 = 180
y = 51
One angle forms a linear pair with the 105-deg angle. It measures
180 - 105 = 75.
The large left triangle has angles 75 deg, 51 deg, and the unkown angle at the left.
z + 51 + 75 = 180
z + 126 = 180
z = 54
The other solution to the equation is -3.
Step-by-step explanation:
Given equation is;
5x²+bx+12=0
One solution is -4/5
We will put this solution in Eqn to get the value of b first,
Multiplying each term by 5
Dividing both sides by -4
Putting b=19 in given Eqn
5x²+19x+12=0
Here,
a=5 , b=19 , c=12
Using quadratic formula,
Either, or,
The other solution to the equation is -3.
Keywords: linear equation, quadratic formula
Learn more about quadratic formula at:
#LearnwithBrainly