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3 years ago

Answer the following questions CORRECTLY I will know if this is wrong. I WILL REPORT ANY INCORRECT ANSWERS!

Mathematics

2 answers:

OlgaM077 [116]3 years ago

8 0

Add 8 and 6:

8+6

then multiply by 2:

2*(8+6)

then add 9:

9 + [2*(8+6)]

The answer is D.

Musya8 [376]3 years ago

3 0

Answer by JKismyhusbandbae: D) 9 + [2 * (8+6)]

1. First do all operations that lie inside parentheses.

2. Next, do all operations that lie inside brackets.

3. Finally, do any remaining operations that lie outside the brackets.

9 + [2 * (8+6)] = Add 6 and 8

9 + [2 * (14)] = Multiply by 2

9 + [28] = 37 add by 9

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8 times as many as 8 is 64. A)8x8=64 B)64x8=8 C)8x64=8

Ivanshal [37]

Answer:
8*8 = 64 which is the first option

Explanation:
8 times as many as 8 means that we will repeat the number 8 for 8 times. This means that:
8 times as many as 8 = 8 + 8 + 8 + 8 + 8 + 8 + 8 + 8 = 8 * 8

This quantity is equivalent to 64.
Therefore:
8*8 = 64

Hope this helps :)

5 0

3 years ago

Read 2 more answers

REALLY NEED HELP ON THESE 3 MATH QUESTIONS!!! (20 PTS)

hammer [34]

1. x² - 6x + 8
4*2 equals 8 and if you add 4 and 2 it gives you 6
-4-2= -6
=(x-4)(x-2)

3. the answer is A
if you plug in the points into the equation y=x
y= 1/2x + 4
given point: (4,6) x=4 y=6
6= 1/2(4)+4
6=6

7 0

3 years ago

Find the distance between (5, 9) & (-7, -7). Round to the nearest tenth.

coldgirl [10]

Distance equals end minus start

(-7,-7)-(5,9)=
(-7-5,-7-9)=(-12,-16)

(-12,-16) gives us the distance point coordinates. Now to find the magnitude we can take sqrt((-12)^2+(-16)^2)=20

So the distance between the two points is 20

I hope this helps

8 0

2 years ago

Which equation represents the line shown on the grap?

Mashcka [7]

Answer:

y=2x

Step-by-step explanation:

2 up, 1 over. put rise over run so that concludes the 2x.

The line starts at 0 so there is no y-intercept

4 0

3 years ago

Read 2 more answers

I need to know the solution to this

Alex73 [517]

There are two ways to do this but the way I prefer is to make one of the equations in terms of one variable and then 'plug this in' to the second equation. I will demonstrate

Look at equation 1, $-2x+y=10$ this can quite easily be manipulated to show $y=10+2x$ .

Then because there is a y in the second equation (and both equations are simultaneous) we can 'plug in' our new equation where y is in the second one $4x-y=-14 \Rightarrow 4x-(10+2x)=-14$ which can then be solved for x since there is only one variable $4x-10-2x=-14 \Rightarrow 2x=-4 \Rightarrow x=-2$ and then with our x solution we can work out our y solution by using the equation we manipulated $y=10+2x = 10+(2 \times -2) = 10-4=6$ .

So the solution to these equations is x=-2 when y=6

8 0

3 years ago