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3 years ago

100-[(25/5) *10]= ? Not understanding, please help

1 answer:

4 0

Original Question:
100 - [(25/5) x 10] = ?
Note: Always answer what's inside FIRST. In this case, the main ts the brackets, but there's also parenthesis in it too. So solve that.
→100 - [(5) x 10] = ?
Now, solve what's inside the brackets.
→100 - [50] = ?
Well, you can get rid of the brackets.
→100 - 50 = ?
Subtract!
→100 - 50 = 50
Solution:
50

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Triangle GHJ is rotated 90° about point X, resulting in

Bumek [7]

the correct answer is your third choice.

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3 years ago

If x>7, then |x|>7. |y|>7, so y=7 Valid or invalid?

Alex

$\text{if }x>7\text{, then }|x|>7$ is a valid argument

$|y|>7\text{, so }y=7$ is not a valid argument

For the first argument: $\text{if }x>7\text{, then }|x|>7$

From the definition of absolute value function

$|x|=x$ if $x\ge0$

That is every positive number is its own absolute value. Since

$x>7\implies x\ge0$ ,

we can argue that

$x>7\implies |x|>7$

so the first argument is valid

For the second argument: $|y|>7\text{, so }y=7$

From the definition of absolute value function

$|y|:=\left \{ {y\text{ if }y\ge0}\atop{-y\text{ if }y$

This means that

$|y|>7:=\left \{ {y>7\text{ if }y\ge0}\atop{-y>7\text{ if }y$

$|y|>7:=\left \{ {y>7\text{ if }y\ge0}\atop{y$

no part of the definition allow for the option $y=7$ . So the second argument is not valid.

Learn more here: brainly.com/question/11897796

7 0

3 years ago

2.9 x 10^5 + 8.7 x 10^5

LiRa [457]

Answer:

So this is scientific notation what you do is

2.9x10^5 so you put however many zeros the is powered to 10. See there is a 5 It has to be behind or in front of the decimal you might be saying how do you know if its behind or in front well negative is in front and positive is behind .

290,000 there was a number already behind the decimal so there you go 5 number behind the decimal.

Same for the second one

290,000 870,000 is your answers so now you add hem together

1,160,000 is your final answer

Step-by-step explanation:

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3 years ago

1. during first 10 seconds

Deffense [45]

Answer:

1. y=mx+b

(5 , 5) (10 , 10)

5m+b=5 10m+b=10

10m+b-5m-b=5

5m=5

m=1

5+b=5

b=0

So for 1---10s the slope is: y = x

2. y=mx+b

(10 , 10) (35 , 10)

10m+b=10 35m+b=10

35m+b-10m-b=0

25m=0

m=0

b=10

So for 10-----35s the slope is: y=10

3. y=mx+b

(35 , 10) (0 , 0)

35m+b=10 b=0

35m=10

m=2/7

So for 35----40s the slope is: y= 2/7 x

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4 years ago

Help Please... Will mark Brainlest

BARSIC [14]

Answer:

its b. log3 8y

Step-by-step explanation:

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3 years ago