Answer:
Step-by-step explanation:
We can use Hypotenuse Theorem for this:
For triangle ABC,
AC²=CB²+BA²
9²=CB²+3²
Switch the sides
-CB²=3² -9²
-CB²= 9-81
-CB²= -72
the signs cut each other
CB²=72
the square changes sides
CB=√72
CB= 8.49 cm
Now triangle CBD
We have the length of CB but not the other two whereas we have the angle
It will be sin
As we know sin= O/H
Here O is CB whereas H is CD
Put the values
sin 50= 8.49/H
H= 8.49 ÷sin 50
Calculate
H=11.1 cm
As we know H is CD so CD is 11.1 cm
Hope it helps
Answer:
B
Step-by-step explanation:
18 = 2 * 3 * 3 = 2 *3²
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Hint:
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1 cup of chocolate chips for every 1and 3/4 cup of flour
so divide 4 and 2/3 x 1 and 3/4
turn them both into fractions
4 2/3 = 14/3
1 3/4 = 7/4
14/3 / 7/4 = 14/3 x 4/7 = 56/21 = 2 and 2/3 cups of chocolate chips are needed
Answer:
C
Step-by-step explanation:
Natural numbers are numbers which are positive whole numbers greater than 0. This includes 1, 2, 3, ...etc.
To determine, solve each equation.
A. x=0
B. x = 1/3
C. x=3
D. x=-4, 4
Only C is a natural number.
Answer:
(2,10)
Step-by-step explanation:
4 to 6 is 2 and 10 to 20 is 10 therfore you get 2 and 10