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jok3333 [9.3K]
3 years ago
12

Explain how you can use a number line to find the sum of -8.3 + 10.5. Please help!

Mathematics
1 answer:
ss7ja [257]3 years ago
7 0

adding a negative number is the same as subtracting a positive number. This question is the same as 10.5-8.3

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What are the x-intercepts for the graph of y=3(x - 2)(x+6)?
WARRIOR [948]

Answer:

A

Step-by-step explanation:

Put Y=0

0 = 3(x - 2)(x + 6) \\

Now

x - 2 = 0 \\ x = 2 \\  \\  \\ x + 6 = 0 \\ x =  - 6 \\  \\

so A is right option

5 0
3 years ago
2[2y-1]+5=19 what are the solutions?
skelet666 [1.2K]

Answer:

y = 4

Step-by-step explanation:

2[2y-1]+5=19   (by PEDMAS, distribute parentheses first)

(2)(2y) - (2)(1) + 5 = 19

4y - 2 + 5 = 19

4y +3 = 19    (subtract 3 from both sides)

4y = 19 - 3

4y = 16  (divide both sides by 4)

y = 16/4

y = 4

5 0
3 years ago
Read 2 more answers
Put the expressions in order from least to greatest value
strojnjashka [21]

Answer:

Least: \sqrt[6]{64}

2nd least: (\sqrt{64})²

2nd greatest:  \sqrt{81} · \sqrt{81}

Greatest:  1/64^-2

Step-by-step explanation:

\sqrt[6]{64} = 2

(\sqrt{64})² = 64

\sqrt{81} · \sqrt{81} = 9 · 9 = 81

1/64^-2 = 4,096

7 0
3 years ago
For a given pair of points, find the equation of the line y=mx+b that goes through the points by solving a system of linear equa
rjkz [21]

Answer:

y = 2x - 3

Step-by-step explanation:

the formula for finding equation of a line is m = (y2 - y1 )/(x2 - x1). that is (7-3)/(5-3) which gives you 4/2 = 2.

you then chose one of the point and fill in the equation y - y1 = m (x -x1)

So let's chose (3,3) and fill in.

y - 3 = 2 (x - 3)

y - 3 = 2x - 6

y - 2x = -6 + 3

y - 2x = -3

Hence, the equation of the line is y = 2x - 3

3 0
3 years ago
How many triangles can be drawn with side lengths 4 centimeters, 4.5 centimeters, and 9 centimeters? Explain?
sineoko [7]

Answer:

none

Step-by-step explanation:

4+4.5=8.5 both of the smaller sides have to add up to a number greater than the largest side

5 0
3 years ago
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