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ioda
2 years ago
11

This morning, the temperature was 80 ⁰F. It dropped 5 degrees per hour. In how many (h) hours did the temperature drop to at mos

t 40 ⁰F? Using the inequality 80 - 5h ≤ 40, which solution makes sense?
a. h ≥ 8 (The temperature dropped for more than 8 hours.)

Selected:b. h ≤ 8 (The temperature dropped for 8 hours or less.)This answer is incorrect.

c. h ≥ 8 (The temperature dropped for 8 hours or more.)

d. h ≤ 8 (The temperature dropped for less than 8 hours.)
Mathematics
1 answer:
Annette [7]2 years ago
6 0

Answer: B or D

Step-by-step explanation:

5 times 8 (hours) is 40. Your input was correct, but you can try adding D too

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Y=3x+2 please graph this line
klemol [59]

Answer:

Your graph would start at the point 0,2 (over 0 up 2). Other points would be (2,8), (4,14), (-2,-4), and so on. A good website for graphing is Desmos.com .you can plug an equation in and it will graph it for you!

Step-by-step explanation:

7 0
3 years ago
Simplify (x^3)(x^-2)
Charra [1.4K]
Hey there!

When multiplying variables with the same degree, be sure to add the two degrees being multiplied.

For example;

x * x; both of these terms have the degree of "1" as they are "x^1". Since we are multiplying them, we need to add their degrees.
x^1 * x^1 = x^2

Now that we've broken down what we are doing, let's apply this new knowledge to your problem.

(x^3)(x^-2); Remember to just add the degrees; -2 + 3 = 1
This means our product is x^1, or just x.

I hope this helps!
8 0
3 years ago
A triangle has an area of 54 m2 and a height of 9 m.<br> How long is the base of the triangle?
schepotkina [342]
The base of the triangle would be 12m
3 0
2 years ago
Read 2 more answers
2. Evaluate each expression:<br> a.-1.2.3 -<br> b.-1. (-2) 3<br> C. -1 • (-2).(-3)
rodikova [14]

Answer:

a. -6

b. +6

c. -6

Step-by-step explanation:

minus times plus times plus = -

minus times minus times plus = +

minus times minus times minus = -

1 times 2 times 3 = 6

so:

-1 times 2 times 3 = -6

-1 times -2 times 3 = +6

-1 times -2 times -3 = -6

3 0
2 years ago
Write this product in its simplest form -5a•6a^8
timofeeve [1]
The rule for the product of similar bases with exponents:

(a^b)(a^c)=a^(b+c)

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(-30)(a^(1+8))

-30a^9
6 0
3 years ago
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