Answer:
Step-by-step explanation:
Using
Part/whole =%/100
%=part*100/whole
%=9*100/15
%=60%
60% of the fruits are apples
Answer:
S = 6x² + 5x - 6
5544 sq. units
Step-by-step explanation:
<u>Area of parallelogram is:</u>
<u>Given</u>:
<u>Then</u>:
- S = (2x + 3)(3x - 2) =
- 6x² - 4x + 9x - 6 =
- 6x² + 5x - 6
S = 6x² + 5x - 6
<u>If x = 30, then plug it in the equation:</u>
- S = 6*30² + 5*30 - 6 = 5544 sq. units
Answer:
135° and 225°
Step-by-step explanation:
basically you want to find the value of x between 0 and 360 in this equation
cos x/2 = -(√2)/2
assume x/2 as n, so
cos n = -(√2)/2
n = 45°
then remember the quadrant system
0-90 1st quadrant, all is POSITIVE
90-180 2nd quadrant, only SIN has positive value
180 - 270 3rd quadrant, only TAN has positive value
270 -360 4th quadrant, only COS positive here.
so if you try to find negative value look into 2nd and 3rd quadrant that related 45° to x-axis (0°or 180°)
so the value of x is
180 - 45 = 135° (2nd quadrant) and
180 + 45° = 225° (3rd quadrant)
Answer:
C, Length = 39.4 cm; width = 7.9 cm
Step-by-step explanation:
The permimeter of a rectangle is 2 times the width + 2 times the length or 2(l + w)
The length is 4 times w plus 7.8.
So: 2w+2(4w+7.8)=94.6
= 2w+8w+15.6=94.6 (Factor out the brackets)
= 10w+15.6=94.6 (Combine like terms)
= 10w=79 (Subtract 15.6 from both sides)
= w=7.9 (Divide both by 10).
So, the width is 7.9 cm and the length is 39.4 cm (4 * 7.9 + 7.8)
I’m not good at math but I’ll help you the value of n is 20
