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3 years ago

A scientist makes a graph of temperature versus time. Temperature will be plotted on the ______ axis.

Mathematics

2 answers:

inessss [21]3 years ago

5 0

Answer:

y-axis

Step-by-step explanation:

time is almost always plotted on the x-axis :)

Have a great day!!!

trapecia [35]3 years ago

3 0

Temperature will be plotted on the y-axis

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Please use the accompanying Excel data set or accompanying Text file data set when completing the following exercise. A machine

erastovalidia [21]

Answer:

(8.213 ; 8.247)

Step-by-step explanation:

Given the data :

No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Dia. 8.23 8.16 8.23 8.25 8.26 8.23 8.20 8.26 8.19 8.23 8.20 8.28 8.24 8.25 8.24

Sanple size, n = 15

Sample mean, xbar = Σx / n = 123.45 / 15 = 8.23

The sample standard deviation, s = √(x -xbar)²/n-1

Using calculator :

Sample standard deviation, s = 0.03116

s = 0.031 (3 decimal places)

The 95% confidence interval :

C.I = xbar ± (Tcritical * s/√n)

Tcritical at 95%, df = 15 - 1 = 14

Tcritical = 2.145

C.I = 8.23 ± (2.145 * 0.031/√15)

C.I = 8.23 ± 0.0171689

C.I = (8.213 ; 8.247)

3 0

3 years ago

Select the correct answer. Rewrite the expression x^3+10x^2+13x+39/x^2+2x+1 in the form q(x)+r(x)/b(x).

daser333 [38]

1 step: Divide the polynomial $x^3+10x^2+13x+39$ by the polynomial $x^2+2x+1$ with remainder:

$x^3+10x^2+13x+39=(x^2+2x+1)(x+8)+(-4x+31).$

Here $x+8$ is quotient and $-4x+31$ is remainder.

2 step: Substitute previous result into the fraction:

$\dfrac{x^3+10x^2+13x+39}{x^2+2x+1}=\dfrac{(x^2+2x+1)(x+8)+(-4x+31)}{x^2+2x+1}=\\ \\=\dfrac{(x^2+2x+1)(x+8)}{x^2+2x+1}+\dfrac{-4x+31}{x^2+2x+1}=(x+8)+\dfrac{-4x+31}{x^2+2x+1}.$

Answer: correct choice is A.

8 0

3 years ago

Given A(3, 4), B(4, 3) and C(2, 1), what are the coordinates of C', the image of C under a rotation of 90 degrees about the orig

Aleks [24]

Given:

The coordinates of the points A, B and C are (3,4), (4,3) and (2,1)

The points are rotated 90° about the origin.

We need to determine the coordinates of the point C'.

Coordinates of the point C':

The general rule to rotate the point 90° about the origin is given by

$(x, y) \Rightarrow(-y, x)$

Substituting the coordinates of the point C in the above formula, we get;

$(2, 1) \Rightarrow(-1, 2)$

Therefore, the coordinates of the point C' is (-1,2)

5 0

4 years ago

What’s a equivalent expression using prime factorization for the number 254

erik [133]

So prime factorization is what it seems, finding the prime factors of a number. Using prime factorization, we can break down 254 as such:

$\underbrace{254}_{\boxed{2*127}}$

Since 2 and 127 are prime, the prime factorization of 254 is 2 × 127.

7 0

3 years ago

What is the length of the equilateral triangle below?

kykrilka [37]

Answer:

C. 5√3

Step-by-step explanation:

To figure this out, we need to apply the Pythagorean Theorem, a² + b² = c², where c is the "HYPOTENUSE". In this case, c is already found for us [10], so the operation we use whenever the hypotenuse is defined is deduction, or subtraction. Apply the Pythagorean Theorem: a² + 25 = 100; 75 = a². Now, to find a, we need to find two numbers that multiply to 75, where one of them is a PERFECT SQUARE, and in this case, they are 3 and 25. Since the square root of 25 is 5 [in this case, NO NON-NEGATIVE root], that gets moved to the outside of the radical, and 3 [NON-PERFECT SQUARE] stays wrapped under the radical, ending up with 5√3. You understand?

I am joyous to assist you anytime.

4 0

3 years ago