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3 years ago

6

True or false? If the slope of a regression line is positive, the correlation is negative.

2 answers:

Masja [62]3 years ago

8 0

Hey there!

This statement is FALSE. The correlation would be positive

Hope this helps you!

God bless ❤️

Brainliest would be appreciated

xXxGolferGirlxXx

steposvetlana [31]3 years ago

3 0

Answer: The answer is false. Hope this was helpful!

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With the remaining 3/4 gallon of honey, Lila decided to bake some loaves of bread and several batches of cookies for her school

Aleksandr-060686 [28]

Find the least common denominator for all fractions: 12

3/4 = (3*3)/(4*3) = 9/12
1/6 = (1*2)/(6*2)
1/4 = (1*3)/(4*3)

Take the converted fractions to have the honey used taken away from the original total.

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3 years ago

A ladder 16 feet long is leaning against the wall of a tall building. The base of the ladder is moving away from the wall at a r

svet-max [94.6K]

Answer:

a. 0.588

b. 0.0722

c. 4.576 sqft/sec

Step-by-step explanation:

Let b and h denote the base and height as indicated in the diagram. By pythagoras theorem, $h^2 + b^2 = 16^2 = 256 \dotsc\;(1)$ because it is a right angle triangle.

It is given that $\frac{db}{dt} = 1$

Now differentiate (1) with respect to t (time) :

$\displaystyle{2h\frac{dh}{dt} + 2b\frac{db}{dt} = 0 \implies \frac{dh}{dt} = -\frac{b}{h} \frac{db}{dt}}$

$\displaystyle{=-\frac{b}{\sqrt{256 - b^2}} \frac{db}{dt} = -\frac{8}{13.856} \times 1 = -0.588}$

The minus sign indicates that the value of h is actually decreasing. The required answer is 0.588.

b. From the diagram, infer that $16 \sin{\theta} = b$ . When b = 8, then $\theta = \arcsin{0.5} = \ang{30}$ .

Differentiate the above equation w.r.t t

$\displaystyle{16 \cos{\theta} \frac{d\theta}{dt} = \frac{db}{dt} \implies \frac{d\theta}{dt} = \frac{1}{16 \cos{\theta}} = \frac{1}{13.856} = \mathbf{0.0722}}$

c. The area of the triangle is given by $A = 0.5\times h \times b$ . Differentiating w.r.t t,

$\displatstyle{\frac{dA}{dt} = 0.5 b \frac{dh}{dt} + 0.5 h \frac{db}{dt}}$

Plugging in b = 8, h = 13.856, $\frac{dh}{dt} = -0.588$ ,

$\frac{dA}{dt} = -2.352 + 6.928 = \mathbf{4.576 ft^2/sec}$

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3 years ago

a cereal box has a length of 8 inches, a width of 1 3/4 inches, and a height of 12 1/8 inches. what is the volume of the cereal

beks73 [17]

8 times 1.75 x 12.125 = 169.75 square inches.

4 0

3 years ago

Read 2 more answers

The width of a rectangle is 32 inches. The width of the rectangle decreased by 8 inches and its length also changed. The area of

tekilochka [14]

Answer:

60 in

Step-by-step explanation:

Area = length x width

Area is constant at 1440 in^2

For first rectangle: W1 and L1

For second rectangle: W2 and L2

W1 = 32 in

W2 = W1 - 8 in = 24 in

1440 in^2 = L1 x 32 in = L2 x 24 in

L1 = 45 in

L2 = 60 in

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3 years ago

Hi 10 +10 here is me question help

xenn [34]

Answer:

$\huge\red{\boxed{\mathfrak{Hello}}}$

$\huge \fbox \pink {A}\huge \fbox \green {n}\huge \fbox \blue {s}\huge \fbox \red {w}\huge \fbox \purple {e}\huge \fbox \orange {r}$

$10 + 10 \\ = 20$

8 0

3 years ago

Read 2 more answers