Answer: 18°F
Step-by-step explanation: if you add 21 and -3 you get 18
The length of the missing side of the triangle is 129.96
<h3>Right angle triangle</h3>
Right angle triangle are triangle that has one of its sides as 90 degrees. The sides can be found using Pythagoras theorem. Therefore,
c² = a² + b²
where
c = hypotenuse
a and b are the other legs.
Therefore,
19² - 15.2² = a²
a = 361 - 231.04
a = 129.96
learn more on right triangle here: brainly.com/question/20795478
Answer:
There are 120 1st graders at Sierra Elementary School this year
Step-by-step explanation:
Let n represent the total number of 1st graders at Sierra Elementary School
Since 45% of all 1st graders at Sierra Elementary School are female students and this year there are 54 female 1st graders, 45% of n is equal to 54
→ n(
) = 54
→ 45n = 5400
→ n = 120
Answer:
28.278ft^2
Step-by-step explanation:
Given data
Diameter of painting= 6ft
Radius= 3ft
Let us find the area of the painting
Area= πr^2
Substitute
Area= 3.142*3^2
Area= 3.142*9
Area= 28.278ft^2