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1-4: MathXL for School: Additional Practice
Assignment is past due (09/13/22 11:59pm)
A 150-pound person uses 5.6 calories per minute when walking at a speed of 4 mph. How long must a person walk at this speed to use at least 180 calories?
CH

Answer:

10 to the 5th power times 9 to the 2nd power over 6 to the 4th power

Answer: try 1 or 0

Step-by-step explanation:

Answer: 8

Step-by-step explanation:

(-8)= 8

Answer:

what

Step-by-step explanation:

Answer:

If it is [tex]6(5)^2[/tex] then the answer is 150

Step-by-step explanation:

So, follow PEMDAS
Parenthesis

Exponent

Multiplication

Division

Addition

Subtraction

First square 5 because there is an exponent [tex]6(5)^2 = 6(25)[/tex]

Next multiply 6 times 25 and you get 150!

Answer:

d) 155

Step-by-step explanation:

The value of x is,

→ x = 5

Now the expression is,

→ 6x² + x

Let's solve the expression,

→ 6x² + x

→ 6(5)² + 5

→ 6(25) + 5

→ 150 + 5

→ 155

Hence, the answer is 155.

if d increases c will decrease AND  if c increases d will decrease.

If b is not equal to 0, an ordered pair of numbers a and b, denoted as a / b, is a ratio. A proportion is an equation that equalizes two ratios. For illustration, the ratio may be expressed as follows: 1: 3 (If there are 1 boy and 3 girls, then there are 3 girls for every 1 boy.)

since c and d are inversely proportional

a) if d increases c will decrease

because it is the property of the ratio and proportion

and same will be applied in b

b) if c increases d will decrease

that is obvious....

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Answer:

Step-by-step explanation:

brackets first

5 - (3-2) + 2

5 - (1) + 2

5 - 1 + 2

4 + 2

6

Answer:

5-(3-2)+2

5-1+2

4+2

6

Step-by-step explanation:

Follow PEMDAS

P ()

E: Exponent

M: Multiplication

D: Division

A: Addition

S: Subtraction

And you answer each equation going from Left to Right

Answer:

1) 256, -128, 64, -32

2) 27, 9, 3, 1, 1/3

3) 5x², 5x⁴, 5x⁶, 5x⁸, 5x¹⁰,

Step-by-step explanation:

1. In this geometric series each term is obtained by multiplying the previous term by (-1/2) or dividing by (-2).

256 ÷ (-2) = - 128

-128 ÷ (-2) = 64

64 ÷ (-2) = (-32)

The geometric series is:

     256, -128, 64, -32...

We can find the common ratio by dividing the second term by first term.

2) 27, 9, ___, _________, 1/3

       [tex]\sf \boxed{\bf common \ ratio= \dfrac{second \ term}{first \ term}}[/tex]

                                 [tex]\sf = \dfrac{9}{27}\\\\ = \dfrac{1}{3}[/tex]

  [tex]\sf 9*\dfrac{1}{3}=3\\\\3*\dfrac{1}{3}=1[/tex]

The geometric series is:

  27, 9, 3, 1, 1/3....

3) 5x², _____, 5x⁶, 5x⁸, _____, ....

Here, we can take 3rd term and 4th term to find the common ratio.

  [tex]\sf common \ ratio = \dfrac{5x^8}{5x^6}\\\\[/tex]

                       [tex]\s = x^{8-6}\\\\=x^2[/tex]

5x² * x² = 5x⁴

8x⁸ * x² = 8x¹⁰

The geometric serious is:

5x², 5x⁴, 5x⁶, 5x⁸, 5x¹⁰, ...

[tex]\sf 1.) \ 256, -128, 64, -32,..\\ \\ 2.) \ 27, 9, 3, 1, 1/3,... \\ \\3.) \ 5x^2, 5x^4, 5x^6, 5x^8,5x^{10} , ...[/tex]

[tex]\sf Geometric \ formula: ar^{n-1}[/tex]

Find the common ratio:

Equation: [tex]256(-\frac{1}{2} )^{n-1}[/tex]

2nd term: [tex]256(-\frac{1}{2} )^{2-1}=-128[/tex]

3rd term: [tex]256(-\frac{1}{2} )^{3-1}=64[/tex]

Find common ratio:

Equation: [tex]27(\frac{1}{3} )^{n-1}[/tex]

3rd term: [tex]27(\frac{1}{3} )^{3-1}=3[/tex]

4th term: [tex]27(\frac{1}{3} )^{4-1}=1[/tex]

Find the common ratio:

Equation: [tex]5x^2 (x^2)^{n-1}[/tex]

2nd term: [tex]5x^2 (x^2)^{2-1} = 5x^2 (x^2) = 5x^{4}[/tex]

5ht term: [tex]5x^2 (x^2)^{5-1} = 5x^2 (x^8) = 5x^{10}[/tex]

Two vertex angles of an isosceles triangle are equal but not necessarily all three so the given statement is not always true.

A triangle is a closed, 2-dimensional shape with 3 sides, 3 angles, and 3 vertices.

In a triangle, the sum of all three angles is 180°

Triangle is a very common figure to deal with our daily life for example in our daily life to measure the height of any tower then there is a huge application of the right angle triangle.

An isosceles triangle is a triangle whose two sides will be the same, but the third side may or may not be equal.

So, the angle associated with the same side will same but the remaining angle will or will not be the same.

Hence "Two vertex angles of an isosceles triangle are equal but not necessarily all three so the given statement is not always true".

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The algebraic expression in simplest terms is 200 · x² - 79 · x + 14 = 0.

In this problem we have a sum of products of binomials as algebraic expression and we must reduce to its simplest terms by using algebra properties, that is, using these properties until a polynomial is found:

(- 10 · x + 2) + (- 9 · x + 8) · (- 10 · x + 2) + (- 9 · x + 8) · (- 10 · x + 2) + (- 9 · x + 8)

(- 10 · x + 2) + 2 · (- 9 · x + 8) · (- 10 · x + 2) + (- 9 · x + 8)

(- 10 · x + 2) · [1 + 2 · (- 10 · x + 2)] + (- 9 · x + 8)

(- 10 · x + 2) · (1 - 20 · x + 4) + (- 9 · x + 8)

(- 10 · x + 2) · (3 - 20 · x) + (- 9 · x + 8)

3 · (- 10 · x + 2)  + (- 20 · x) · (- 10 · x + 2) + (- 9 · x + 8)

- 30 · x + 6 + 200 · x² - 40 · x - 9 · x + 8

200 · x² - 79 · x + 14

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Answer:

7-5=2

2+4=6

2×6=12

you always work the Parenthesis 1st

Length of AC is 54 units.

The midpoint of a line is a point that bisects the line into equal parts. It is equidistant from both end points of the line.

As B is the midpoint of AC,

AB = BC

∴ 4x - 5 = 11 + 2x

∴ 4x - 2x = 11 + 5

∴ 2x = 16

∴ x = 8.

Now, AC = AB + BC

∴ AC = 4x - 5 + 11 + 2x

Substituting the value of x,

∴ AC = 4(8) - 5 + 11 + 2(8)

∴ AC = 54 units

Thus, the length of AC is 54 units.

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The equation of line is y = -4

Given the points:

(x₁, y₁) = (-1, -4)

(x₂, y₂) = ( 3, -4)

The slope-intercept form:

y = mx + b

Where, m is the slope and b is the y-intercept, that is (0, b)

The formula for slope:

m = (y₂ – y₁) / (x₂ – x₁)

We have given

x₁ = -1

x₂ = 3

y₁ = -4

y₂ = -4

So,

m = (-4 – (-4)) / (3 – (-1)) = (-4 + 4) / (3 + 1) = 0/4 = 0

Therefore we have the equation of the line as:

y = mx + b

-4 = 0(x) + b

-4 = 0 + b

b = -4

Therefore, the equation of line y = -4

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Answer:

x=2.5

Step-by-step explanation:

R = 4x − 9y

We know that R=1 and y=1 so we can substitute that in

1=4x-9

Then solve as a normal algebraic equation

add 9 to both sides

10=4x

divide both sides by 4

2.5=x

Answer:

3rd option

Step-by-step explanation:

using the sine and cosine ratios for the 60° angle in the right triangle and the exact values.

cos60° = [tex]\frac{1}{2}[/tex] and sin60° = [tex]\frac{\sqrt{3} }{2}[/tex] , then

cos60° = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{x}{12}[/tex] = [tex]\frac{1}{2}[/tex] ( cross- multiply )

2x = 12 ( divide both sides by 2 )

x = 6

and

sin60° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{y}{12}[/tex] = [tex]\frac{\sqrt{3} }{2}[/tex] ( cross- multiply )

2y = 12[tex]\sqrt{3}[/tex] ( divide both sides by 2 )

y = 6[tex]\sqrt{3}[/tex]

According to the question, the Fibonacci series is a series of sequence of numbers. It follows one standard property which states that every third term in the series is the addition of first term and second term.

Now, the first ten terms of the Fibonacci sequence is as follows:

Fibonacci Series = [tex]{1,1,2,3,5,8,13,21,34,55}[/tex]

The sum of the first ten number of the Fibonacci series is as follows:

Sum = [tex]1+1+2+3+5+8+13+21+34+55 = 143[/tex]

As per question, divide the calculated sum by eleven. Therefore, it can be written as:

Required Division = [tex]\frac{143}{11} = 13[/tex]

Hence, the solution for the given series is [tex]13[/tex].

What is a Fibonacci series?

Fibonacci series is an infinite series of sequences of numbers. The important property of this series is, every third term is the addition of the first and second term. In this, the first term either starts with zero or one.

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what scale factor did you find and is there a photo of the rectangle?

-9, -10/32, 13/16, 79/8]

Step-by-step explanation:

use ur brain

Answer:

Step-by-step explanation:

Solution for Point C is located on AB such that the ratio of AC : CB is 3:2. ... A: Here point B lies on the line AC with coordinates A(-3,4) and C(2,-6), ...

Answer:

About 1 and 1/4 chapters per day.

Step-by-step explanation:

There are 11 chapters, and eight days to read them. So we divide 11 by 8. 11/8 = 1.375, which is approximately 1 and 1/4.

Answer:y/5=5/6

Step-by-step explanation:based on given conditons

The number of apples in the 12th bag is 9.

There are 12 bags of apples on the market stalls.

The mean number of apples in each bag is 8.

Therefore, the number of apples in the 12th bag can be calculated as follows:

mean = ∑fx / ∑f

Hence,

let the number of apples in the 12th bag = a

mean = 6 × 1 + 7 × 4 + 8 × 2 + 9 × 3 + 10 × 1 + x × 1/ 1 + 4 + 2 + 3 + 1 + 1

mean = 6 + 28 + 16 + 27 + 10 + x / 12

mean = 87 + x / 12

8 = 87 + x / 12

cross multiply

96 = 87 + x

x = 96 - 87

x = 9

Hence, the number of apples in the 12th bag is 9.

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Answer:

47002 :)

is how you write 47 thousand +2

According to the Centers for Disease Control and Prevention (CDC), the average shower lasts 8 minutes. If you like to linger in the shower for longer than 15 minutes, you might want to rethink your hygiene routine.

According to board-certified dermatologist Dr. Edidiong Kaminska, MD, the recommended maximum shower time is about 5 to 10 minutes. This is enough time to cleanse and hydrate the skin without overdoing it. “Our skin needs water, just like our bodies, but if we over- or under-do it, then it may have consequences,” she adds.

And if you have dry skin or eczema, Dr. Anna Guanche, MD, FAAD, says shorter, lukewarm showers are recommended. Moreover, the Baylor College of Medicine says it’s especially important to avoid hot showers in the wintery months since the heat can damage the surface of the skin, which can lead to inflammation and increase symptoms of eczema.

Side effects of long showers

While a long, hot shower might seem like the best way to pamper your body, over-showering may dehydrate the skin. “The purpose of showering is to hydrate and cleanse the skin, but warm or hot showering for prolonged periods strips away natural oils of the skin and opens up our pores and allows moisture to escape,” Kaminska says.

To keep moisture in, she usually recommends applying a body moisturizer after showering to the skin since it allows the water (hydration) to stay in the skin and not escape.

Answer:

11 people

Step-by-step explanation:

14-8+5

6+5

11

The absolute inequality will be x ≥ | 8.9 ± 0.15 |mm and the compound inequality will be x > 8.75, x< 9.05.

Inequality is the relationship between two expressions that are not equal, employing a sign such as ≠ “not equal to,” > “greater than,” or < “less than.”.

Given that the length is 8.9 mm with a tolerance of 0.15mm.

The absolute inequality will be written as below:-

x ≥ | 8.9 ± 0.15 |mm

The compound inequality will be written as:-

x  > 8.75,

x < 9.05.

Therefore, the absolute inequality will be x ≥ | 8.9 ± 0.15 |mm and the compound inequality will be x > 8.75, x< 9.05.

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