Calculate the force acting on a body of mass 0.8kg (g=9.8*-2; F=mg)

Answer:

attached

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

In an equation left side = right side.

The area of the garden is 33 ft².

The number of tiles required to cover the floor is 17 tiles.

The area of a dog pen is 170/9 square yards.

We need to find the area and perimeter for the given questions.

The formula to find the perimeter of a rectangle=2(Length+Breadth)

The formula to find the area of a rectangle=Length×Breadth.

Given that, a small garden has a perimeter of 24 1/4 ft and the length is 8 ft.

Now, perimeter = 2(8+Breadth)

⇒24 1/4=16+2×Breadth

⇒97/4-16=2×Breadth

⇒Breadth=97-64/4×2=33/8 ft

Now, Area=8×33/8=33 ft²

Therefore, the area of the garden is 33 ft².

Given that, the floor measures 4 1/2 ft by 3 3/4 ft.

The area of a floor=Length×Breadth=9/2×15/4=135/8 ft²

Number of tiles to cover the floor=135/8=16.875

Therefore, the number of tiles required to cover the floor is 17 tiles.

Given that, a dog pen is 3 1/3 yards wide by 5 2/3 yards long.

Now, the area of a dog pen=10/3×17/3=170/9 square yards.

Therefore, the area of a dog pen is 170/9 square yards.

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A line is a one-dimensional shape that is straight, has no thickness, and extends in both directions indefinitely.

A line is a one-dimensional shape that is straight, has no thickness, and extends in both directions indefinitely. The equation of a line is given by,

y =mx + c

where,

x is the coordinate of the x-axis,

y is the coordinate of the y-axis,

m is the slope of the line, and

c is the y-intercept.

The graphs can be described as shown below.

A.) The first graph has the y-intercept at 2. Therefore, the first graph can be described by the equation, y =5x + 2.

B.) For the second graph, the graph passes through the point (-1,0). Therefore, if we substitute the value of y as 0 in the equation y=3x+3, we will get x=-1.

Hence, the equation of the second graph is y=3x+3.

C.) For the third graph, the graph passes through the point (-1.5,0). Therefore, if we substitute the value of y as 0 in the equation y=2x+3, we will get x=-1.5.

Hence, the equation of the second graph is y=2x+3.

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Answer:

12 and 8

Step-by-step explanation:

→ Set up two equations

x - y = 4

[tex]\frac{x+y}{2} =10 \\ \\x + y = 20[/tex]

→ Add the 2 equations together

2x = 24

→ Solve for x

x = 12

→ Substitute into original equation

12 - y = 4

→ Solve

y = 8

[tex]\large\boxed{y=\pm\sqrt{\frac{x+3}{5}}}[/tex]

To find the inverse, swap the [tex]y[/tex] (or [tex]f(x)[/tex] in this case) and the [tex]x[/tex], then solve for [tex]y[/tex].

[tex]\begin{aligned}y&=5x^2-3\\x&=5y^2-3\\x+3&=5y^2-3+3\\x+3&=5y^2\\\frac{x+3}{5}&=\frac{5y^2}{5}\\\frac{x+3}{5}&=y^2\\\pm\sqrt{\frac{x+3}{5}}&=\sqrt{y^2}\\\pm\sqrt{\frac{x+3}{5}}&=y\end{aligned}[/tex]

The width of the desk will be 38.4inches

A rectangle is a quadrilateral that has 4 sides and angles.

If a rectangular shaped desk has a length of 30 inches and a width of 24 inches and a desk with a similar shape has a length of 48 inches, the width of the desk will be calculated using this expression;

l/w = L/W

30/24 =48/W

Cross multiply

30W = 24 * 48

W = 38.4inches

Hence the width of the desk will be 38.4inches

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Answer:

c. 4x + 20 = 140

Step-by-step explanation:

Perimeter = 140 feet

Width = L + 10

P = 2w + 2L

P = 2(L + 10) + 2L

P = 2L + 20 + 2L

P = 4L + 20

The value of f(32) is 3

A function is a mathematical statement used to relate two variables .

It is given that

8f(x) = f((1/8)x)

It is also given that

f(4) = 24

now to determine the value of f(32)

8 * f(32) = f((1/8) *32)

8 *  f(32) = f(4 )

f(32) = 24 /8 = 3

Therefore the value of f(32) is 3

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The probability that the mean length of the sample rods would differ from the population mean by greater than 0.65 mm is 0.1698 or 16.98%.

Mean length of the population (μ) = 176 mm.

Variance of the population (σ²) = 100.

Therefore, the standard deviation of the population (σ) = √100 = 10.

The sample size (n) = 446.

The mean of the sample = the mean of the population = μ = 176 mm.

The standard deviation of the sample (s) = σ/√n = 0.4735137.

We are asked to find the probability that the sample rods would differ the population mean by greater than 0.65 mm, that is,

either the length of the sample rods is less than (176 - 0.65) =175.35

or the length of the sample rods is more than (176 + 0.65) = 176.65.

This can be shown as P(X < 175.35 or X > 176.65) = 1 - P(175.35 < X < 176.65) = 1 - Normalcdf(175.35,176.65,176,0.4735137) = 1 - 0.8302 = 0.1698 or 16.98%.

Thus, the probability that the mean length of the sample rods would differ from the population mean by greater than 0.65 mm is 0.1698 or 16.98%.

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Using it's concept, it is found that there is a 0.152 = 15.2% probability that they are both Democrats.

A probability is given by the number of desired outcomes divided by the number of total outcomes.

Two voters are selected, each with 39% probability of being Democrats, hence the probability of both being Democrats is given by:

p = (0.39)² = 0.152.

0.152 = 15.2% probability that they are both Democrats.

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Answer: 0.152

Step-by-step explanation:

The interval for mean sale price is $582

According to statement

The given rates are 560, 468, 685, 534, 658, 593

Now,

Sample mean = X / n

Put the values in it and then

(560+ 468+ 685+ 534+ 658+ 593) / 6 = 582.1667

and use this formula S = sqrt [ X2 - n 2 / (n-1) ]

and put the values in these and

S = sqrt [ X2 - n 2 / (n-1) ] = 95.97179

So, The interval for mean sale price is $582

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Step-by-step explanation:

HOPE THIS HELPS!.....

Answer: i hope this helps

Step-by-step explanation:

Answer:

The solutions of the equation |2 x-3|=17

are x=10

and x=-7

Step-by-step explanation:

Given equations is |2 x-3|=17.

It is required to find out the values of x satisfying the given equation.

To find it out, use the fact that the solution of this type of equation is 2x-3=17.

Or 2x-3=-17 and simplify the equations using simple mathematical operations.

Step 1 of 2

Solve the equation 2x-3=17,

Add 3 on both sides of the equation 2x-3=17,

2x-3+3=17+3

2x=20

Divide by 2 on both sides of the equation 2x=20,

[tex]$$\begin{aligned}&\frac{2 x}{2}=\frac{20}{2} \\&x=10\end{aligned}$$[/tex]

Step 2 of 2

Solve the equation 2x-3=-17,

Add 3 on both sides of the equation 2x-3=-17,

[tex]$2 x-3+3=-17+3$\\ $2 x=-14$[/tex]

Divide by 2 on both sides of the equation 2x=-14,

[tex]$$\begin{aligned}&\frac{2 x}{2}=\frac{-14}{2} \\&x=-7\end{aligned}$$[/tex]

Answer:

20

Step-by-step explanation:

Long Division, cancel the zeroes, then 80/4 which is 20

Answer:

20

Step-by-step explanation:

8000/400= 20

Answer:

Step-by-step explanation:

The information given illustrates that the equivalent fraction will be 2/6.

It should be noted that equivalent fraction simply means the fractions that are the same.

In this case, we are given 4/6 and 1/3. They have different numerators and denominators. The question is simply to change 1/3 to another fraction that has a denominator of 6.

This will be illustrated. The equivalent faction to 1/3 will be:

= 1/3 × 2/2

= 2/6

Therefore, the answer is 2/6.

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Answer:

45

Step-by-step explanation:

Use khan acedaemy

Answer:

A. 8/17

Step-by-step explanation:

Cosine = adjacent over hypotenuse

Adjacent to angle 62 is 8 (The two angles are said to be adjacent angles when they share the common vertex and side).

The hypotenuse is 17 (opposite of right angle)

Answer:

x = - 3

Step-by-step explanation:

8x + 12 = 2(x - 3) ← distribute the parenthesis by 2

8x + 12 = 2x - 6 ( subtract 2x from both sides )

6x + 12 = - 6 ( subtract 12 from both sides )

6x = - 18 ( divide both sides by 6 )

x = - 3

Answer:

x = -3

Step-by-step explanation:

you first distribute 2(x-3) which gives you 2x-6 so 8x+12=2x-6.

next you move the terms to the correct side so you subtract 12 from the left side and subtract 2x from the right side then move them to the other side so you end up with 8x-2x=-6-12.

then you combine like terms so you will have 6x=-18.

then divide both sides by 6 which gives you x = -3.

8x+12=2(x-3)

8x+12 = 2x-6

8x-2x = 6-12

6x = -18

x = -3

The correct option is D, The relationship is not proportional because the ratio of pages to days is not constant.

A linear relationship is a relationship in which each term has at max one degree. Linear equation in variable x and y can be written in the form y = mx + c.

A linear relationship with two variables, when graphed on the cartesian plane with axes of those variables, gives a straight line.

For the given relationship to be proportional, the number of pages read should be the same every day. Therefore, the ratio of the number of pages to the number of days should be equal.

85/1 = 85

170/2 = 85

249/3 = 83

340/4 = 85

435/5 = 87

Hence, the correct option is D, The relationship is not proportional because the ratio of pages to days is not constant.

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Answer:

x=4

Step-by-step explanation:

3x=5+7

7+5=12

12/3=4

x=4

Hope this helps!!

Answer:

x=4

Step-by-step explanation:

add like terms

3x =5+7

3x=12

divide both sides by 3

3x=12

3    3

x=4

Answer:

180

Step-by-step explanation:

For each of the two right triangles, by the Pythagorean theorem, she shared side is of length 15. So, the area of each of the top two rectangles is (½)(8)(15), so their combined area is 120.

Moving onto the trapezoid, we can use the formula for the area of a trapezoid to determine its area is (½)(14+16)(4)=60.

So, the answer is 120+60=180.

Answer:

D

Step-by-step explanation:

(ax + b)² = c

step 1 : take square root of both sides

ax + b = ± [tex]\sqrt{c}[/tex]

step 2 : subtract b from both sides

ax = - b ± [tex]\sqrt{c}[/tex]

step 3 : divide both sides by a

x = - [tex]\frac{b}{a}[/tex] ± [tex]\frac{\sqrt{c} }{a}[/tex]

Answer:

D. Take the square root of both sides

Step-by-step explanation:

Given quadratic equation:

[tex](ax+b)^2=c[/tex]

To solve, square root both sides:

[tex]\implies \sqrt{(ax+b)^2}=\sqrt{c}[/tex]

[tex]\textsf{Apply radical rule} \quad \sqrt{n^2}=n, \quad \textsf{assuming }n \geq 0:[/tex]

[tex]\implies ax+b=\pm\sqrt{c}[/tex]

Subtract b from both sides:

[tex]\implies ax=-b\pm\sqrt{c}[/tex]

Divide both sides by a:

[tex]\implies x=\dfrac{-b\pm\sqrt{c}}{a}, \quad a\neq 0[/tex]

Option D: Type I error ("Reject the claim that the proportion of people who write with their left hand is 0.15 when the proportion is actually 0.15").

Option B: Type II error ("Fail to reject the claim that the proportion of people who write with their left hand is 0.15 when the proportion is actually different from 0.15").

Type I​ error:

A. Fail to reject the claim that the proportion of people who write with their left hand is 0.15 when the proportion is actually different from 0.15.

B. Reject the claim that the proportion of people who write with their left hand is 0.15 when the proportion is actually different from 0.15.

C. Fail to reject the claim that the proportion of people who write with their left hand is 0.15 when the proportion is actually 0.15.

D. Reject the claim that the proportion of people who write with their left hand is 0.15 when the proportion is actually 0.15.

A Type I error is when the null hypothesis is rejected when it is true. In this case, the null hypothesis is that "the proportion of people who write with their left hand is equal to 0.15".

The right option is D (reject the null hypothesis when it is true).

Type II​ error:

A. Fail to reject the claim that the proportion of people who write with their left hand is 0.15 when the proportion is actually 0.15.

B. Fail to reject the claim that the proportion of people who write with their left hand is 0.15 when the proportion is actually different from 0.15.

C. Reject the claim that the proportion of people who write with their left hand is 0.15 when the proportion is actually different from 0.15.

D. Reject the claim that the proportion of people who write with their left hand is 0.15 when the proportion is actually 0.15.

A Type II error is when the null hypothesis is failed to be rejected when the alternative hypothesis is true. In this case, the null hypothesis is that "the proportion of people who write with their left hand is equal to 0.15".

The right option is B (failed to reject the null hypothesis when it is false).

The options A and C are correct decisions, as reject the null hypothesis when it is false (Option C) and not reject the null hypothesis when it is true (Option A).

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Answer:

I think -10 is the answer

Answer:

Can't do much without a direct question or embedded image.

Answer:

310,000

Step-by-step explanation:

Since t represents time, the start would represent when no time has passed or in other words, when t=0, which is the y-intercept. You can plug in t as 0, but it's a bit redundant, since the y-intercept of a quadratic equation in the form: [tex]f(x)=ax^2+bx+c[/tex] will have a y-intercept at (0, c) where c is the constant, since whenever you plug in 0 as x, the ax^2 becomes 0 (since 0^2 = 0, and a * 0 = 0 since anything multiplied by 0... is 0) and the same thing goes for the bx, leaving the c alone. This means the y-intercept of the function is (0, 310) and since it's in the thousands there is 310,000 at the start

Answer:

310,000

Step-by-step explanation:

hope it helps!!!

Using translation concepts, the graph of the function y = -|x| is given at the end of this answer.

A translation is represented by a change in the function graph, according to operations such as multiplication or sum/subtraction in it's definition.

Graph y = -|x| is a reflection over the x-axis of the function y = |x|, and both functions(|x| in red, -|x| in blue) are given in the graph at the end of this answer.

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