Can someone help me out with my math homework my grades are bad

Answer:

4.88

Step-by-step explanation:

I used my calculator to do this;

I did stat and I put in the numbers, I clicked calculate and it said the answer was 4.875. Round that to the nearest hundredth and you'll get 4.88.

Answer:

4.88

Step-by-step explanation:

The actual mean is 4.88 to the nearest hundredth. She either approximated the sum of elements to 40 instead of 39 or she approximated the actual mean to the nearest whole number.

I think she gave an approximated average or a rounded average, but I am not sure.

Complete question :

The average amount that a college student spends on a textbook is $205 with a

standard deviation of $35. What is the probability that a student spends:

A. between $10 and $310?

Answer:

0.999

Step-by-step explanation:

Mean, m = 205 ; Standard deviation, s = 35

Z = (x - m) / s

x = 310

Z = (310 - 205) / 35 = 3

P(z < 3) = 0.99865

x = 10

Z = (10 - 205) / 35 = - 5.57

P(Z < - 5.5)

P(z < 3) - P(z < - 5.5)

0.99865 - 0

= 0.999

Answer:

Partial-fraction decomposition is the process of starting with the simplified answer and taking it back apart, of "decomposing" the final expression into its initial polynomial fractions.

For example, Partial fraction decomposition is used to integrate rational functions and in engineering for finding inverse Laplace transforms.

Step-by-step explanation:

Answer:

n > 5

Step-by-step explanation:

3.5n > 17.5, or

     n > 5

Answer:

[tex]m =13[/tex]

Step-by-step explanation:

Given

The attached dataset

Required

The mean absolute deviation

First, calculate the mean

[tex]\bar x = \frac{\sum x}{n}[/tex]

So, we have:

[tex]\bar x = \frac{42+40+39+76+71+55+68+65}{8}[/tex]

[tex]\bar x = \frac{456}{8}[/tex]

[tex]\bar x = 57[/tex]

The mean absolute deviation (m) is:

[tex]m =\frac{1}{n} \sum|x - \bar x|[/tex]

So, we have:

[tex]m =\frac{1}{8} (|42 - 57| + |40 - 57| + |39 - 57| + |76 - 57| + |71 - 57| + |55 - 57| + |68 - 57| + |65 - 57|)[/tex]

Using a calculator, we have:

[tex]m =\frac{1}{8} (|-15| + |-17| + |-18| + |19| + |14| + |-2| + |11| + |8|)[/tex]

Remove absolute bracket

[tex]m =\frac{1}{8} (15 + 17 + 18 + 19 + 14 + 2 + 11 + 8)[/tex]

[tex]m =\frac{1}{8} *104[/tex]

[tex]m =13[/tex]

The mean absolute deviation is 13

Answer:percentage of the candies in the box that are hard candies=75%

Step-by-step explanation:

Total pieces of  candy in the box=20

Number of candies that are hard =15

Percentage of candies that are hard =Number of candies that are hard /   Total pieces of  candy in the box x 100

= 15/20 x 100

=75%

Answer:

3rd option

Step-by-step explanation:

Consider the coordinates of A and A'

A (0, 0 ) and A' (5, 2 )

This represents a move of + 5 (0 → 5) units in the x- direction and a move of + 2 ( 0 → 2 ) units in the y- direction.

The figure is unchanged and must therefore be a translation with rule

(x, y ) → (x + 5, y + 2 )

Answer:

Total Area = 532 m²

Step-by-step explanation:

Triangle = ½bh.

Rectangle = lw.

Total Area = sum of individual areas =

(8 m × 16 m) / 2 + (16 m × 18 m) / 2

+ (18 m × 18 m) =

(64 m²) + (144 m²) + (324 m²) =

532 m²

Answer:

x = 3

Step-by-step explanation:

Given 2 intersecting chords, then

The product of the parts of one chord is equal to the product of the parts of the other chord, that is

5x × x = 5 × 9

5x² = 45 ( divide both sides by 5 )

x² = 9 ( take the square root of both sides )

x = [tex]\sqrt{9}[/tex] = 3

Answer:

966 pounds

Step-by-step explanation:

An adult panda can eat 138 pounds of bamboo each day

The amount to br consmed in a week can be calculated as follows

7 days= 1 week

= 138×7

= 966 pounds

Hencr the amount consumed in a week is 966 pounds

Answer:

dgjkgc!vhlyj do gjgmnnnhchvgjffjhvhfkjufug

Answer:

B. Region 1

Step-by-step explanation:

because it is how much is their

Answer: region 3 i believe

Step-by-step explanation:

Answer:

See below

Step-by-step explanation:

[tex]1. \: 6 {y}^{3} \times 5 {y}^{6} \\ = 6 \times 5 \times {y}^{3 + 6} \\ = 30 {y}^{9} \\ \\ 2. \: 8 {x}^{5} \times 3 {x}^{2} \\ = 8 \times 3 \times {x}^{5 + 2} \\ = 24 {x}^{7} \\ \\ 3. \: 7m^4 \times 3m \times 5m^2 \\ = 105 {m}^{4 + 1 + 2} \\ = 105 {m}^{7} \\ \\ 4. \: 10d^7 \times 5d^0 \\ = 10 \times 5 \times {d}^{7 + 0} \\ = 50 {d}^{7} [/tex]

Answer:

Simplify 10/4

Step-by-step explanation:

10/4 divided by 2/2 = 5/2

5/2 simplified equals 2 1/2

As 2 can go into 5 twice but only have 1 left

Answer:

A. Strong

Step-by-step explanation:

Mark as Brainliest

Step-by-step explanation:

volume= y×9×10=2700

90y=2700

y= 2700/90

y= 30 cm

Answer:

we have to put the numbers in order..

(121,122,125, 126,132),M,(135,136,136,138,140)

Step-by-step explanation:

minimum : (smallest number) = 121

Q1 : 125

Q2 (median) : (132 + 135) / 2 = 267/2 = 133.5

Q3 : 136

maximum : (largest number) = 140

I did this a long time ago so im not so sure

Answer:

Step-by-step explanation:

121 122 125 126 132 135 136 136 138 140

140 -121 =19 range

Min=121 max =140

Mean = 131.1

Median = 132+135=267/2=133.5

Answer: The answer is B, or the second "v" lol

Step-by-step explanation:

Answer:

its A

Step-by-step explanation:

✔️V =  125 Over 3  inches cubed

V =  500 Over 3  inches cubed

V = S 500 Over 3 pi inches cubed

V = 4,000 Over 3 pi inches cubed

Answer: 18.75 inches

Step-by-step explanation:

Let the height of the model be represented by x. Therefore, based on the information given in the question, we can form an equation which will be:

3/x = 32/200

Cross multiply

32 × x = 200 × 3

32x = 600

x = 600/32

x = 18.75

Therefore, the height of the model is 18.75 inches

Answer:

C: 6,310,000

Step-by-step explanation:

move the dot to the right 6 places and add 0s to the empty spots making 6.31 turn into 6,310,000

hope this helps

Answer:

4 would be your answer

Step-by-step explanation:

brainlesit pls

Answer:

La masa del recipiente vacío es 1,2146 kg.

Step-by-step explanation:

La densidad se define como la propiedad que tiene la materia, ya sean sólidos, líquidos o gases, para comprimirse en un espacio determinado. En otras palabras, la densidad es una magnitud que permite medir la cantidad de masa que hay en determinado volumen de una sustancia. Entonces, la expresión para el cálculo de la densidad es el cociente entre la masa de un cuerpo y el volumen que ocupa:

[tex]densidad= \frac{masa}{volumen}[/tex]

Entonces la masa puede ser expresada como:

masa= densidad*volumen

En este caso:

Reemplazando:

masa= 1000 [tex]\frac{kg}{m^{3} }[/tex] * 7,854*10⁻⁴ m³

masa=0.7854 kg

Si la masa del recipiente lleno es de 2 kg, entonces se le resta la masa de agua calculada:

2 kg - 0,7854 kg= 1,2146 kg

Entonces, la masa del recipiente vacío es 1,2146 kg.

Answer:

For a polynomial of the form ax2+bx+c a x 2 + b x + c , rewrite the middle term as a sum of two terms whose product is a⋅c=4⋅−25=−100 a ⋅ c = 4 ⋅ - 25 ...

Step-by-step explanation:

Answer:o/1

Step-by-step explanation:

Answer:

45

Step-by-step explanation:

Because it's face values

If it was place values then it would be 5000 x 90 but since its face values it is 5 x 9 as face values is the number itself

Answer:

2/3

Step-by-step explanation:

let S be number of sample space

n(S)= 30

n(not prime number) =20

Pr(not prime number)=20/30

=2/3

Given:

The function is:

[tex]f(x)=x^3-4x^2-37x+40[/tex]

[tex]f(8)=0[/tex]

To find:

The all of the zeros of f(x) algebraically.

Solution:

We have, [tex]f(8)=0[/tex] is means 8 is a zero of given function and (x-8) is a factor of given function.

The function is:

[tex]f(x)=x^3-4x^2-37x+40[/tex]

Spittle the middle terms in such a way so that we get (x-8) as a common factor.

[tex]f(x)=x^3-8x^2+4x^2-32x-5x+40[/tex]

[tex]f(x)=x^2(x-8)+4x(x-8)-5(x-8)[/tex]

[tex]f(x)=(x^2+4x-5)(x-8)[/tex]

Spittle the middle term of the quadratic expression, we get

[tex]f(x)=(x^2+5x-x-5)(x-8)[/tex]

[tex]f(x)=(x(x+5)-1(x+5))(x-8)[/tex]

[tex]f(x)=(x+5)(x-1)(x-8)[/tex]

For zeros, [tex]f(x)=0[/tex].

[tex](x+5)(x-1)(x-8)=0[/tex]

[tex](x+5)=0\text{ and }(x-1)=0\text{ and }(x-8)=0[/tex]

[tex]x=-5\text{ and }x=1\text{ and }x=8[/tex]

Therefore, the all zeros of the given function are -5, 1 and 8.