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Genrish500 [490]
4 years ago
6

Evaluate the following: −3 − (−2). (5 points) a. -5 B. -1 c. 1 d. -6

Mathematics
2 answers:
Ugo [173]4 years ago
5 0

Answer:

B:-1

Step-by-step explanation:

-3-(-2)=-3+2=-1

gtnhenbr [62]4 years ago
3 0

Answer:

<h2>-1</h2>

Step-by-step explanation:

- 3 - ( - 2)

When there is a (-) in front of an expression in parentheses, change the sign of each term in the expression

- 3 + 2

Here, 3 > 2 , So, we have to enter the sign of 3 which is negative.

Calculate:

- 1

Some rules:

( + ) \times (  + ) = ( + )

( + ) \times ( - ) = ( - )

( - ) \times ( - ) = ( + )

( - ) \times (  + )  = ( - )

Hope this helps..

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120-2x=30, what’s x?
KiRa [710]

Step-by-step explanation:

-2x=30-120

-2x = -90

=x = -90/-2

=x = +45

4 0
4 years ago
(100 points)
LekaFEV [45]

Answer:

30/10 and 5/11

Step-by-step explanation:

8 0
4 years ago
Triangle A″B″C″ is formed using the translation (x + 1, y + 1) and the dilation by a scale factor of 3 from the origin. Which eq
FromTheMoon [43]

Answer:

B''C''=3BC

Step-by-step explanation:

we know that

The length of segment B''C'' is equal to the length of segment BC multiplied by the scale factor

step 1

Find the length of segment BC

the formula to calculate the distance between two points is equal to

d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}

we have the points

B(1,-3),C(-3,-3)

substitute the values

BC=\sqrt{(-3+3)^{2}+(-3-1)^{2}}

BC=\sqrt{(0)^{2}+(-4)^{2}}

BC=4\ units

The segment B''C'' is equal to the segment BC multiplied by the scale factor

The scale factor is 3

so

B''C''=BC(3)

B''C''=3BC

substitute

B''C''=3(4)=12\ units

4 0
3 years ago
Read 2 more answers
Danny made a mistake in the following problem.
Olenka [21]
The mistake is made on line 3, after calculating 35/7, he should have started with the multiplication 6(2)
7 0
4 years ago
Alvin wants to know what his average paddling rate was for a canoe trip to a campsite. On the way there it took him 8 hours agai
Marizza181 [45]

let

r--------> Alvin's average paddling rate in km/hour

y -------> speed of the current in km/hour



we know that

speed= distance/time ------> solve for distance

distance=speed*time


to Campsite against the current

speed=r-y-----> speed=(r-3)

time=8 hours

distance=(r-3)*8------> equation 2


From Campsite with the current

speed=r+y-----> speed=(r+3)

time=3 hours

distance=(r+3)*3------> equation 1



equate equation 1 and equation 2-----> because is the same distance

(r+3)*3=(r-3)*8----> 3r+9=8r-24----> 8r-3r=24+9-----> 5r=33----> r=6.6 km/hour


therefore


the answer is

Alvin's average paddling rate is 6.6 km/hour


7 0
4 years ago
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