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faust18 [17]
3 years ago
14

Which statement is true about the parentheses in this expression? 10 ÷ (8 − 6) − 2 A) The parentheses indicate that 6 − 2 should

be evaluated first. B) The parentheses indicate that 8 − 6 should be evaluated first. C) The parentheses indicate that 10 − 2 should be evaluated first. D) The parentheses indicate that 10 ÷ 8 should be evaluated first.
Mathematics
1 answer:
Hoochie [10]3 years ago
8 0

Answer:B

Step-by-step explanation: When solving expressions with parentheses it’s important to always solve what’s in parentheses first. And when there’s parentheses in parentheses, solve the parentheses that are in the parenthesis. Whew...I hope this helps :)

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8) A box of 12 light bulbs fell
katovenus [111]

Answer: 2/3

Step-by-step explanation:

12 lightbulbs and 4 are broken

12-4=8

8/12

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4/6

/2

2/3

3 0
3 years ago
Jacob leaves his summer cottage and drives home. After
krok68 [10]

Answer:

A linear relationship can be written as:

y = a*x + b

Where a is the slope and b is the y-intercept.

If this line passes through the points (a, b) and (c, d) then the slope can be written as:

a = (a - c)/(b - d)

Here y will represent the distance between Jacob and his house, and the variable x represents the time that he has ben driving.

In this case, we know that after driving for 5 hours, he is 112km from home.

Then we can write this point as (5h, 112km)

We also know that after 7 hours he is 15km from home.

Then we can write this point as (7h, 15km)

Then the slope of this function will be:

a = (15km - 112km)/(7h - 5h) = -48.5 km/h

Then the equation is:

y = -(48.5 km/h)*x + b

To find the value of b, we can replace the values of one of the points, for example in the point (7h, 15km)

This means that we need to replace x by 12h, and y by 15km, then we get:

15km = -( 48.5 km/h)*7h + b

15km + ( 48.5 km/h)*7h = b = 354.5 km

then the equation will be:

y = (-48.5 km/h)*x + 354.5 km

Now we want to answer: How long had Jacob been driving when he was 209 km from  home?

Then we need to only replace y by 209km, and solve for x:

209km = (-48.5 km/h)*x + 354.5 km

209km - 354.5 km = (-48.5 km/h)*x

-145.5km =  (-48.5 km/h)*x

-145.5km/( -48.5 km/h) = x = 3h

So he is 209km away from his home after driving for 3 hours.

6 0
3 years ago
K to the power of negative 2 multiplied by 2
soldier1979 [14.2K]

Answer:

2k-²

Step-by-step explanation:

i hope this is the answer ur looking for !

7 0
3 years ago
The black graph is the graph of y=f(x). Choose the equation for the red graph.
Makovka662 [10]

Answer:

y-1 = f(x)

Step-by-step explanation:

Here, we want to choose the equation for the ref graph

The red graph as we can see is above the black

This means it is more positive

The difference between the two is just 1 unit

By the addition of 1 to the y-value of the black graph, we get the red

Thus, we have that;

y- 1 = f(x)

6 0
3 years ago
Divide 3 1/2 divided by 1/2 in simplest form
VMariaS [17]
I believe the correct answer is 7 :)
6 0
3 years ago
Read 2 more answers
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