Answer:
45
Step-by-step explanation:
As a first rough estimate: divide 390 by 10, obtaining 39.
Another reasonable approximation could be obtained by dividing 450 by 9 and 360 by 9, obtaining 50 and 40. Since 390 is roughly halfway between 360 and 450, estimate that the quotient is approx 45 (halfway between 40 and 50).
Answer: The angle of elevation should be 38.9 degrees.
To find this answer, it is always best to draw a picture of the building. The point of the roof, will be directly over the middle of the cabin. Therefore, we could draw an altitude down from the top to the cabin and create a right triangle.
This would form a triangle with an adjacent side and hypotenuse with our needed angle.
We could write and solve the following cosine equation:
cos(x) = 21/27
x = 38.9
Answer:
Step-by-step explanation:
The computation of the probability is shown below:
P(die and spinner) is
= Probability of the die × probability of the spinner.
where,
Probability of the die is
=
And for the spinner, the probability is
=
Therefore the probability of both die and inner is
=
=
We simply multiplied the probabilities of both die and spinner
Answer:
X= 1/8
Step-by-step explanation:
i got u
Answer:
Katherine need to work minimum 10 hours lifeguarding to meet her requirements
Step-by-step explanation:
Given:
Rate for Lifeguarding =
Rate for walking dogs =
She had worked 2 hours walking dog
Money for walking dogs = Rate for walking dogs hours worked=
she can work a maximum of 15 total hours and must earn at least $160.
Let hours required for lifeguarding be x
Money for life guarding = Rate for walking dogs hours worked for lifrguarding=
Total Money she must earn = Money for lifeguarding + Money for walking dogs
Rounding to nearest hour
Katherine need to work minimum 10 hours lifeguarding to meet her requirements