Answer:
thanks for your question it is a good question but I need other part of your paper to see 3-7 questions
Step-by-step explanation:
i think there are 8 children in totally
Answer:
Option C. cos70°
Step-by-step explanation:
we know that
If two angles are complementary, then the sine of one angle is equal to the cosine of the other angle and the cosine of one angle is equal to the sine of the other angle
Remember that
Tow angles are complementary , if the sum of their angles is equal to 90 degrees
so
If A+B=90°
then
sin(A)=cos(B)
cos(A)=sin(B)
In this problem we have
A=20°
B=90°-20°=70°
therefore
sin(20°)=cos(70°)
cos(20°)=sin(70°)
Answer:
Step-by-step explanation:
32.5*9=292.5
add the commission - $28.75
292.5+28.75= $321.25
The expression s = 5b represents the Sandra rode her bike and the distance Sandra rode, equals 17 miles.
<h3>What is distance?</h3>
Distance is a numerical representation of the distance between two items or locations. Distance refers to a physical length or an approximation based on other physics or common usage considerations.
We have:
Sandra rode her bike 5 times as many miles as Barbara. If b, the distance Barbara rode, equals 3.4 miles.
b = 3.4 miles
Let's suppose the s is the distance Sandra rode then,
s = 5b
The above expression represents the Sandra rode her bike.
Plug b = 3.4 miles
s = 5(3.4) = 17 miles
Thus, the expression s = 5b represents the Sandra rode her bike and the distance Sandra rode, equals 17 miles.
Learn more about the distance here:
brainly.com/question/26711747
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There are 2 short sides x and 1 long side y.
x+x+y=1,800
2x+y=1,800
y=1,800-2x
The area of the rectangle is A=x(1,800-x).
A is a function with variable x. Moreover it is a quadratic (second degree) function.
The graph of the function is a parabola which opens downwards, because the signs of the leading coefficients of the factors, multiply to minus:
(x)(-x)=-x^2.
This means that the highest point of the parabola, is its vertex V(h,k), so the function takes its largest value for x=h.
The roots of A=x(1,800-x) are x=0 and x=1,800, thus the x coordinate of the vertex, must be the midpoint of 0 and 1,800, that is 900.
Answer:
A=x(1,800-x)
largest area is when x=900
