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ioda
3 years ago
9

What is doubled of 13

Mathematics
2 answers:
tekilochka [14]3 years ago
8 0
The answer will be 169 because 13×13=169
Nitella [24]3 years ago
5 0
To double you have to multiply by 2.
13×2=26
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Select all the statements that are true for the graph shown.
Yuki888 [10]

Answer:

The relationship is proportional.

The relationship is linear.

The equation of the line is y = –3x.

Step-by-step explanation:

The line in the question passes through origin and (4,-12).

The rate of change of the line is

m=\dfrac{-12-0}{4-0}\\\Rightarrow m=\dfrac{-12}{4}\\\Rightarrow m=-3

The rate of change of the line or slope of the line is -3

Equation of the line is given by

(y-0)=-3(x-0)\\\Rightarrow y=-3x

This means that the relationship is linear.

If we take any value of x then there will be only one value of y this means that the relationship is proportional.

So the following statements are true

The relationship is proportional.

The relationship is linear.

The equation of the line is y = –3x.

3 0
2 years ago
Read 2 more answers
Which correlation coefficient best represents a moderate relationship showing fewer anxiety symptoms in people who report higher
weqwewe [10]

Answer:

a) -0.5

Step-by-step explanation:

Correlation

  • Correlation is a technique that help us to find or define a relationship between two variables.
  • It is a measure of linear relationship between two quantities.
  • A positive correlation means that an increase in one quantity leads to an increase in another quantity
  • A negative correlation means with increase in one quantity the other quantity decreases.
  • Values between 0 and -0.3 tells about a weak negative linear relationship, values between -0.3 and -0.7 shows a moderate negative correlation and a correlation value of of -0.7 and -1.0 states a strong negative linear relationship.

Anxiety symptoms and life satisfaction are negatively correlated. As life satisfaction increases the anxiety symptoms decreases.

Thus, a moderate correlation between them can be expressed by a correlation coefficient of -0.5

5 0
2 years ago
Find the product. Simplify your answer.<br> (4z–1)(z–3)
Arturiano [62]

Answer: 4z (to the 2 power) - 13z + 3

Step-by-step explanation:

4 0
3 years ago
Two complementary angles have a ratio of 2:3. what is the measure of the two angles
Amanda [17]
Complementary angles equal 90 degrees. The ratio is 2:3.  
2+3=5
90/5=18
2(18):3(18)

36 degrees, 54 degrees
8 0
3 years ago
Read 2 more answers
Which rational number is equivalent to the expression 69 2/9 - 31 1/9 - (-12 4/9) ?
ololo11 [35]

Answer:69 2/9 - 31 1/9 - (- 12 4/9) =

69 2/9 - 31 1/9 + 12 4/9 =

81 6/9 - 31 1/9 =

50 5/9 or 455/9 or 50.56 <==

Step-by-step explanation:

7 0
2 years ago
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