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Finger [1]
3 years ago
8

What are the two decisions that you can make from performing a hypothesis​ test? What are the two decisions that you can make fr

om performing a hypothesis​ test?
Mathematics
1 answer:
fredd [130]3 years ago
4 0

Answer:

i dont know XD

Step-by-step explanation:

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What are the coordinates of (-4,-2) rotating 90° counterclockwise?
RUDIKE [14]

Answer:

(2, -4)

Step-by-step explanation:

The rotation of an object <u>turns</u> the object around a <u>fixed point</u> called the center of rotation.  

A <u>rotation</u> of 90° counterclockwise means:

A 90° rotation counterclockwise with the origin (0, 0) as the center of rotation.

The rule for a counterclockwise rotation of 90° about the origin is:

(x, y) → (-y, x)

Therefore:

(-4, -2) → (2, -4)

Learn more about transformations here:

brainly.com/question/27013652

brainly.com/question/28225350

4 0
2 years ago
After sitting on a shelf for a while, a can of soda at room temperature (73 F) is placed inside a refrigerator and slowly cools.
Alona [7]

Answer:

Step-by-step explanation:

Use Newton's Law of Cooling here:

T(t)=T_s+(T_0-T_s)^{-kt

where T(t) is the temp of something after a certain amount of time, t, has gone by; Ts is the surrounding temp, and T0 is the initial temp. k is the constant of cooling. We need to first solve for this using the information given. Filling in what we know:

53=35+(73-35)^{-35k which can simplify a bit to

53=35+(38)^{-35k and 18=38^{-35k

Take the natural log of both sides:

ln(18)=ln(38)^{-35k

Taking the natural log allows us to pull that exponent down out front:

ln(18)=-35k*ln(38)

and now we can divide both sides by ln(38) to get

-35k = .794585 so

k = -.023

Now that have the value for k, we can go on to solve the rest of the problem which is asking us the temp of the soda after 70 minutes. Filling in using the k value and the new time of 70 minutes:

T(t)=35+(38)^{70(-.023) and

T(t)=35+(38)^{-1.61 and

T(t)=35+.0028612013 and

T(t) = 35 F, basically the temp of the fridge, which is not surprising!

5 0
3 years ago
PLEASE HELP ME ILL MARK WITH BRAINLY
AlladinOne [14]

Answer:

15(4)(3), 12(15),

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Work out the area of a parallelogram with a base of 6cm and height 8cm
FromTheMoon [43]
Multiply 6 and 8 which is 48cm
5 0
3 years ago
Read 2 more answers
Describe and correct the error in using properties of parallelograms.
sesenic [268]

Answer/Step-by-step explanation:

Opposite angles of a parallelogram are equal to each other.

Therefore, <S = <U, and <T = <V

Consecutive angles of a parallelogram are supplementary.

Therefore,

m<S + m<V = 180°

50° + m<V = 180°

m<V = 180° - 50° (subtraction property of equality)

m<V = 130°

4 0
3 years ago
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