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inessss [21]
3 years ago
11

PLEASE HELP IT'S 7TH GRADE MATH... MIGHT BE EASY FOR YOU

Mathematics
1 answer:
sineoko [7]3 years ago
7 0
1) X+12

2) 2x-5

3) 40-x

4) (x1/3)(12)

5) x0.25

6) 2x:4y

7) 12(x-1)

8) 3[(x)(-8)]

9) 7(2x+3)

10) (x-30)+(y-30)
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The expression 50 can be simplified to
puteri [66]

Answer:

25

Step-by-step explanation:

The first step in simplifying the expression of the square root of 50 involves finding factors of 50. This just means we are trying to find two whole numbers that, when multiplied, equal 50. Since 50 is an even number, 2 is going to be a factor, and so we can rewrite 50 as 2 times 25.

6 0
3 years ago
Find the equation of the circle whose center and radius are given.
trapecia [35]
(x – h)² + (y – k)²<span> = r</span>² 

Fill in the numbers 

(x – 7)²<span> + (y +3)</span>²<span> = 49</span>
6 0
3 years ago
Read 2 more answers
Fill in the blanks to complete the description of the track. The track has ____ sides of the square and the distance around ____
rjkz [21]

Answer:

Step-by-step explanation:

The track has four sides of the square and the distance around 2 complete circle(s)

8 0
3 years ago
How do graphs and equations reveal information about a relationship between two quantities
fiasKO [112]
Graph and equation both shows the proportional comparison between two quantities

for example, equation y = 4x, this means, the value of 'y' will always be 4 times the value of 'x'

More complex equation such as y = 3x + 5, means that the value of 'y' equals to 5 more triples of value of 'x'

Another example is the conversion graph attached below, it shows the relationship between kilometers and miles. For example, we want to find out how many miles are in 10 kilometers, we would draw a line from the point that shows 10 km towards the graph, then across from the graph to miles, and we'd get a reading of 12 miles.

3 0
4 years ago
What is the slope of a line perpendicular to the line whose equation is -2x+20y=6​
QveST [7]

Answer:

  -10

Step-by-step explanation:

Solving for y gives ...

  20y = 2x +6

  y = 2/20x +6/20 = 1/10x +3/10

The slope of the given line is the coefficient of x: 1/10. The slope of the perpendicular line is the opposite reciprocal of this: -1/(1/10) = -10.

The perpendicular line has a slope of -10.

8 0
3 years ago
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