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Morgarella [4.7K]
3 years ago
8

To add two numbers with the same sign, add the numbers and give the sum the __ sign.

Mathematics
2 answers:
Sloan [31]3 years ago
7 0

Answer:

C) Same Sign

Step-by-step explanation:

For example, negative numbers added together will give you a negative-sum.

-3+(-2)=-5

Positive numbers added together will give you a positive value.

3+2=5

Have a good day and stay safe!

gulaghasi [49]3 years ago
7 0

Answer:

Step-by-step explanation:

For example, negative numbers added together will give you a negative-sum.

-3+(-2)=-5

Positive numbers added together will give you a positive value.

3+2=5

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A car travels 384 kilometers in 4 hours. (with a constant speed) how much time will it take traveling at 144 kilometers?
erica [24]

Answer:

1.5 hours or 90 minutes

Step-by-step explanation:

384 km: 4 hours

divide both sides by 4

96 km: 1 hour

multiply both sides by 1.5

144 km: 1.5 hours

4 0
3 years ago
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One type of insect is 0.0052 meter long. What is this length in scientific notation?
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Ok so...

You want to move the decimal point to the right until the number is greater than 1 but less than 10.

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You moved the decimal point 3 times to the right.
So it will be 5.2 x 10^-3. It is negative because you moved it to the right. The exponent would be positive if you moved it to the left

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3 years ago
HELPP PLEASE ILL MAKE YOU THE BRAINIEST Find the area of the rhombus
iogann1982 [59]

Answer:

D1×D2/2sq

445×5= 225

225/2

=112.5

5 0
2 years ago
A study of class attendance and grades among first-year students at a state university showed that, in general, students who mis
ratelena [41]

Answer:

the numerical value of the correlation between percent of classes attended and grade index is r = 0.4

Step-by-step explanation:

Given the data in the question;

we know that;

the coefficient of determination is r²

while the correlation coefficient is defined as r = √(r²)

The coefficient of determination tells us the percentage of the variation in y by the corresponding variation in x.

Now, given that class attendance explained 16% of the variation in grade index among the students.

so

coefficient of determination is r² = 16%

The correlation coefficient between percent of classes attended and grade index will be;

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r = √( 16% )

r = √( 0.16 )

r = 0.4  

Therefore,  the numerical value of the correlation between percent of classes attended and grade index is r = 0.4

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3 years ago
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