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Eva8 [605]
4 years ago
9

A -3.5=15 B -3.5= -15 Ꮯ c -3• (5) =15 [ Ꭰ -3(-5) = 15

Mathematics
1 answer:
algol [13]4 years ago
8 0
The answer is B
-3*5=-15
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1. Describe a situation that could be modeled by x≤50
Dimas [21]

There are many ways to answer. The x represents some number. We don't know what the number is, but we know that it must be less than or equal to 50. Put another way, the number can be anything you want as long as it doesn't go past 50. We say that 50 is the so called "ceiling" more or less.

Some examples:

* An elevator can only hold 50 people at maximum. Therefore, x can be any number smaller than 50 or 50 itself. Having 51 or over will be too much.

* You can only work 50 hours for one stretch of some 2 week period. If x is the number of hours you work, then x must be 50 or less as written by x \le 50. So x could be x = 37 as it's less than 50, but x = 62 is not possible.

* For some small ride at a theme park, the seats are designed such that only people 50 inches or less can ride on them. If x is the height of a person in inches, then x \le 50 means something like x = 37 is possible but x = 62 is too high.

8 0
3 years ago
Please help me out with this question ❤️ thank youu
stepan [7]

Answer:

5^6=15625

Step-by-step explanation: the little thing on the right of log to the power of the left of = is equal to the big numbers right of log

6 0
3 years ago
The harbormaster wants to place buoys where the river bottom is 20 feet below the surface of the water. Complete the absolute va
Natalija [7]

Answer:

The answer is below

Step-by-step explanation:

The bottom of a river makes a V-shape that can be modeled with the absolute value function, d(h) = ⅕ ⎜h − 240⎟ − 48, where d is the depth of the river bottom (in feet) and h is the horizontal distance to the left-hand shore (in feet). A ship risks running aground if the bottom of its keel (its lowest point under the water) reaches down to the river bottom. Suppose you are the harbormaster and you want to place buoys where the river bottom is 20 feet below the surface. Complete the absolute value equation to find the horizontal distance from the left shore at which the buoys should be placed

Answer:

To solve the problem, the depth of the water would be equated to the position of the river bottom.

d(h)=river \ bottom\\\\The \ river \ bottom=-20\ feet(below)\\\\d(h) = -20\\\\\frac{1}{5}|h-240|-48=-20\\ \\\frac{1}{5}|h-240|=-20+48\\\\\frac{1}{5}|h-240|=28\\\\|h-240|=28*5\\\\|h-240|=140\\\\h-240=140\ or\ h-240=-140\\\\h=140+240\ or\ h=-140+240\\\\h=380\ or\ h=100\\\\The\ buoys\ should\ be\ placed\ at\ 100\ feet\ and\ 380\ feet\ from\ left-hand\ shore

4 0
4 years ago
The scale of a map is 1 inch : 10 miles. What is the scale of the map area to the actual area? 1 in. : 10 mi 1 in. : 20 mi 1 in.
AlexFokin [52]

Answer:

1 in. : 100 mi

Step-by-step explanation:

Scale = 1 inch : 10 miles

In the scale, the quantity is Length

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Area = Length * Length

So inch becomes inch^2

1 inch * 1 inch = 1 i

10 miles * 10 miles = 100

The correct option is;

1 in. : 100 mi

4 0
3 years ago
PLEASE BRAINLY HELP MEEEEE
Montano1993 [528]

Answer:

1 ) 1/2

2) 1/4

3)10, 15 , 20, 25 , 30 ,35 ......

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5)40

6) 42

7)17/24

8)11/16

9) 3/8

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8 0
3 years ago
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