Answer:
The radius is 7, and the circumference is 43.96
Step-by-step explanation:
The radius is half of the diameter, and this would just be 14/2 which is 7. The circumference is found by C=pi(diamete) or 2pi(radius). This is found by 14*3.14 this is equals 43.96
A = bh/2
40 = x(2x)/2
80 = 2x²
40 = x²
x = sqrt40
x = +/- 2sqrt10
Measurement cannot be negative therefore x = 2sqrt10
Height = 2x = 2(2sqrt10) = 4sqrt10
The height of the triangle is 4sqrt10 cm or approximately 12.65cm.
Answer:
y = -3x - 31
Step-by-step explanation:
We know that the slope intercept formula of a line is;
y = mx + c
From the given equation of y = -3x + 2, we can say that the slope is -3.
Now, parallel lines have the same slope.
Thus, for passing through (-8,-7), the slope will be -3.
So, equation is;
(y - y1) = m(x - x1)
Thus;
(y - (-7)) = -3(x - (-8))
y + 7 = -3(x + 8)
y = -3x - 24 - 7
y = -3x - 31
Answer:
2
Step-by-step explanation:
÷
=
×
To change the ÷ sign to a × sign, you can swap the denominators and numerators of the second fraction.
×
=
Multiply directly.
= 2
Change from improper fractions to mixed numbers.
Answer:
38°
Step-by-step explanation:
It's simple think of it like this: A right angle is exactly 90 degrees. Subtract the 90° and the 52° and you'll get your answer of 38° which is x°.
Hope this helped you out :)