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2 years ago

MATH TEST PLEASE HELP

Mathematics

2 answers:

DIA [1.3K]2 years ago

5 0

Answer:

Step-by-step explanation:

PIT_PIT [208]2 years ago

4 0

Answer:

B) False because r is closer to 1

Step-by-step explanation:

A perfect negative correlation is seen as r=-1, since the answer r=0.997 is positive and very close to 1, this is almost a perfect POSITIVE correlation. Since the question asks about a negative correlation it is false, and the reasoning is because it is closer to 1 than 0. If it was closer to 0 than it would be a "low" correlation but not negative. The answer is B.

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Please help me on this

nadya68 [22]

Savings account, retirement savings, value of second car, balance in checking account i believe those are the only ones not positive though

3 0

2 years ago

The perimeter of a triangle is 86 inches. The largest side is four inches less than twice the smallest side. The third side is 1

Xelga [282]

Hello,
Assume x the smallest side.
y the third side
z the largest side
z=2x-4
y=10+x
x+y+z=86
==>x+(10+x)+(2x-4)=86
==>4x=86-10+4
==>x=20, y=30 and z=36

7 0

2 years ago

Emmanuel added two integers Which condition will always give Emmanuel a negative solution when he adds two integers? Both intege

alexgriva [62]

Both integers have negative values

Explanation

Let

x and y represents the number

so, the options are

$\begin{gathered} +\text{ + +} \\ +\text{ + -} \\ -\text{ + +} \\ -\text{ +-} \end{gathered}$

a) Both integers have negative values Both integers

$-x-y=-(x+y)\rightarrow you\text{ will always get a negative number}$

b) Both integers have positive values

$x+y=+\text{ + += you will always get a positive number}$

c)One integer has a positive value, and one integer has a negative value

$\begin{gathered} -x+y\text{ or x-y} \\ the\text{ sign of the result depends on the greates absolute value, it means the answer will have the same of the bigger number( absolute value)} \end{gathered}$

d)The values of the two integers are opposites

as the point C , the sign depends on the bigger number

for example

$\begin{gathered} 8-5=3\text{ positive because 8 is the bigger} \\ 5-8=-3\text{ negative because (-8) is has the bigger absolute value} \end{gathered}$

so, the answer is Both integers have negative values

I hope this helps you

3 0

11 months ago

What is (0.5x + 15) + (8.2x- 16.6)

nadya68 [22]

1.6 I think I’m sorry if it’s incorrect

3 0

2 years ago

What is the measure of angle B in the figure below?

Ostrovityanka [42]

Answer:

3/cube root 2

3/1.73

3*1.73*.73

3.8*10

38-8

7 0

3 years ago