Answer:
x^2+x-4
Step-by-step explanation:
(f-g)=(x^2+1)-(5-x)
=x^2+1-5+x
=x^2+x-4
Answer:
Use cross products to see if each pair of ratios forms a proportion. Replace each box with = or ≠.
1.
7/5 ? 15/10
=
≠
2.
6/8 ? 15/20
=
≠
Solve each problem.
3.
2/3 = 1.2/x
x = 18
x = 1.8
x = 0.2
x = 10
4.
4/5 equals 8/x plus 2
x = 4
x = 9.5
x = 2
x = 8
Create a proportion and solve.
5.
A recipe uses 3 cups of flour to make 48 cookies. How much flour is needed to make 72 cookies? (1 point)
3/48 = 72/x, x = 1,152 cups
3/48 = x/72, x = 4.5 cups
3/48 = x/72, x = 2 cups
x/48 = 3/72, x = 2 cups
Here are my answers. Are they correct? Thanks!
1. ≠
2. =
3. 1.8
4. x = 8
5. 3/48 = x/72, x = 4.5 cups
Sorry if this answer didn't help. Socratic can help! This learning app, powered by Google AI, helps you understand your school work at a high school and university level. Ask Socratic a question and the app will find the best online resources for you to learn the concepts.
The <em><u>correct answer</u></em> is:
3 inches up per foot across
Explanation:
To find the rate of change, we must find the change in height and the change in length. The rate of change is then written as rise/run, or
(change in height)/(change in length).
The heights at the two given points are 18 inches and 12 inches. This gives us a change of 18-12 = 6 inches.
The lengths at the two given points are 6 feet and 4 feet. This gives us a change of 6-4 = 2 feet.
This makes our rate of change (6 inches)/(2 feet); this can then be simplified to (3 inches)/(1 foot), which means it goes up 3 inches for every foot of driveway length.
Answer:
-1?
Step-by-step explanation:
