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m_a_m_a [10]
4 years ago
12

What is negative 1 plus positive 8

Mathematics
2 answers:
Mars2501 [29]4 years ago
7 0

Answer:

-9

Step-by-step explanation:

zysi [14]4 years ago
6 0

Answer:

7

Step-by-step explanation:

You can think of the negative 1 as a subtraction. What you do is ignore the negative 1, take the 8 and then subtract 1 from it.

-1+8 to 8-1

The SAME thing!

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What is the average rate of change of the function f(x) = - 3x + 5 over the interval x = - 1 to x = 1 ?
alukav5142 [94]

Answer:-3

Step-by-step explanation:

Given

F(x)=-3 x +5

in the interval x=-1 to x=1

Average rate of change is given by =\frac{F(b)-F(a)}{b-a}

over x=a to x=b

F(1)=-3+5=2

F(-1)=3+5=8

Thus average rate of change=\frac{2-8}{1-(-1)}=-3

3 0
3 years ago
Read 2 more answers
6x-5/2=2x+6 whats the answer please help thx
Vadim26 [7]

Answer:

x = 3.5

Step-by-step explanation:

\frac{6x+5}{2} = 2x +6

6x + 5 = 2(2x +6)

6x + 5 = 4x + 12

6x - 4x = 12 - 5

2x = 7

x = 7/2 = 3.5

5 0
4 years ago
Verify that QT is Parallel to RS using the triangle proportionality theorem.
alexdok [17]

The triangle proportionality theorem is

If a line parallel to one side of a triangle intersects the other two sides of the triangle, then the line divides these two sides proportionally.

So to prove QT parallel to RS, we have to show

\frac{PQ}{QR} = \frac{PT}{TS}

Substituting the values, we will get

\frac{18}{38} = \frac{36}{80}
\\
0.47368421=0.45

Which are not equal, therefore the lines are not parallel .

6 0
3 years ago
00:00
Alborosie
Devon finished first, because it took his 6.0999 seconds to race down the street. Tasha came in second, with 6.168 seconds. Liza got third place, because she finished the race in 6.188 seconds. Finally, in last place is Evan, who finished in 6.20 seconds.

I came to this by comparing place values. As you can see, I put the times in order from first to last.

6.0999 seconds
6.1680 seconds
6.1880 seconds
6.2000 seconds


Hope this helps :)
4 0
3 years ago
Shopping While shopping for clothes, Tracy spent $28 less than 2 times what Daniel spent. Tracy
Lyrx [107]

Answer:

Daniel spent $ 19.

Step-by-step explanation:

Given that, while shopping for clothes, Tracy spent $28 less than 2 times what Daniel spent, and Tracy spent $ 10, to determine how much Daniel spent the following equation must be performed:

Daniel: X

Tracy: 2X - 28 = 10

2X - 28 = 10

2X = 10 + 28

X = 38/2

X = 19

2x19 - 28 = X

38 - 28 = X

10 = X

So, Daniel spent $ 19.

7 0
3 years ago
Read 2 more answers
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