18: What multiply is -6*-3= 18
To add up to give -9= -6-3
Answer: -6*-3= 18 and -6-3= -9
For problems like these, we use something called a
ceiling function, in which

. If we do

, we get that we do

, which is
14 buses. We take the ceiling of the division because if we don't, we know that there are going to be extra kids left over that won't be able to seat on a bus. If we just rounded down to 13 buses, we would have been able to seat only 936 kids, a full 64 kids left over.
The girls collected 8.5 pounds more than the boys in class 4
<h3>Complete question</h3>
Five classes collected money for a charity of their choice. The amounts of money collected by the boys and girls of each are shown in the chart below.
In Class 4, how much more money did the girls collect than the boys?
<h3>How to determine the difference in amounts?</h3>
From the attached chart, we have the following amount in class 4:
Girls = 12 pounds
Boys = 3.5 pounds
The difference is calculated as:
Difference = Girls - Boys
So, we have:
Difference = 12 pounds - 3.5 pounds
Evaluate
Difference = 8.5 pounds
Hence, the girls collected 8.5 pounds more than the boys in class 4
Read more about charts at:
brainly.com/question/25583717
#SPJ1
Answer:
(4, 5)
Step-by-step explanation:
It is seen in the figure given that there are three triangles with sides equal to a = 17 inches, b = 17 inches, and c = 20.5. Our angle c is the angle opposite side c and that is 74°. Using the equation given in the question,
A of triangle = ((17 in)(17 in)(sin 74°))(1/2)
= 138.9 in²
Then, we multiply this area by 3 since there are 3 triangles.
total area = (138.9 in²)(3) = 416.7 in²
The area of the figure is most approximately equal to 417 in².