PLEASE HELP FAST. EASY POINTS

Answer:

No

Step-by-step explanation:

Answer:

382 cm²

Step-by-step explanation:

Front face + Back face:

A = 2(a + b)h/2

A = 2(14 cm + 8 cm)(7 cm)/2

A = 154 cm²

Left face:

A = 7 cm × 6 cm = 42 cm²

Right face:

A = 9 cm × 6 cm = 54 cm²

Bottom face:

A = 14 cm × 6 cm = 84 cm²

Top face:

A = 6 cm × 8 cm = 48 cm²

Total surface area =

= (154 + 42 + 54 + 84 + 40) cm²

= 382 cm²

Answer:

x = 20

Step-by-step explanation:

4x+5x = 180° (sum of int angles)

     9x = 180°

       x = 20°

Hence, x = 20.

Answer:

\(\huge\boxed{x=20}\)

Useful Information:

Co-interior angles add to 180°

Step-by-step explanation:

The first step is to add 4x to 5x, which gives you 9x. This is because co-interior angles add up to 180, so 4x+5x=180. Co-interior angles can be spotted by their C shape.  

To work out the value of x you would need to divide 180 by 9, which gives you 20°.  This is because 9x is equal to 180. This means that x is equal to 180 divided by 9.

1) Add 4x to 5x.

\(4x+5x=9x\)

2) Divide 180 by 9.

\(\frac{180}{9}=20\)

Answer: P=I/rt

Step-by-step explanation:

I=Prt

P=I/rt

Answer:

For each of these arrangements, there are 2 possible arrangements for the boys - they can stay the way they are or they can switch seats. So, in total, there are 5040 x 2 = 10080 possible arrangements.

Answer:

3(x-5)

Step-by-step explanation:

Answer:

3(x - 5)

Step-by-step explanation:

Make terms..

x + 2x - 15 =

3x - 15

Now lets find a common factor of them..

3x - 15

3(x - 5)

Thus,

3(x - 5), Is your answer

Answer:

1/4 pound

Step-by-step explanation:

2 1/2 divided by 10

=

1/4

or

5/2 divided by 10

=

1/4

Answer: 1/4 lbs

Step-by-step explanation:

To find weight lost each day, you have to divide total weight lost 2 1/2 lbs by total number of days 10.

(2 1/2) / 10 = 5/2 * 1/0 = 1/4 lbs lost each day

Answer: no

Step-by-step explanation:

A = 7, B = 13 and C = 6 then D = 11.1428571429. 3. A = 28, B = 34 and D =15 then C= 12.3529411765. 4. A = 13, B = 15, C = 2 and D = 33 then 13: 15

The random variables x and y are defined as x = 1 if the die comes up 3, and x = 0 otherwise, and y = 1 if the die comes up 5, and y = 0 otherwise. The variable z is the product of x and y, which is 1 only when both x and y are 1. The probability that z is 1 is 1/36.

When we toss a fair six-sided die, there are six possible outcomes that are equally likely. The values of x and y depend on the outcome of the die. The variable x is equal to 1 if the die comes up 3, and x is equal to 0 otherwise. Similarly, the variable y is equal to 1 if the die comes up 5, and y is equal to 0 otherwise.

Therefore, x and y are both binary variables, taking on values of 0 or 1. The probability that x is 1 is 1/6, since there is only one way to get a 3 out of six possible outcomes. The probability that y is 1 is also 1/6, since there is only one way to get a 5 out of six possible outcomes.

The variable z is defined as the product of x and y, which is 1 only when both x and y are 1. Therefore, z is also a binary variable that takes on values of 0 or 1. The probability that z is 1 is the probability that both x and y are 1, which is equal to the probability of getting a 3 and a 5 on the same roll of the die.

Since the outcomes of the die are independent, the probability of getting both a 3 and a 5 on the same roll is the product of the probabilities of getting a 3 and a 5 separately, which is equal to (1/6) × (1/6) = 1/36. Therefore, the probability that z is 1 is 1/36.

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Answer:

--------------------------

Let the equal sides be both marked as ?

Use the perimeter formula to determine one of the equal sides.

Substitute the expression for the perimeter and find the value of ?

Hence the length of each of equal sides is 4x² - x + 2.

Answer:

y=2x+1

Step-by-step explanation:

there's nothing to show, sorry

ask me if you have question

The length of the stick was 7.55 cm.

Given that,

initial speed of bug is given by, v=0.65 m/s

m refers to the mass of bug.

Mass of stick is given by, M= 10m

I refers to the moment of inertia of bug and stick together about the end of the stick.

ω refers to the angular velocity of the bug and stick immediately after collision.

L refers to length of stick

Stick can be considered rod.

Now, moment of inertia about end of a rod is given by = 1/3 ML²

From angular momentum conservation theory we can get,

total initial angular momentum = total final angular momentum

mvL = Iω

mvL = [mL² + 1/3 ML²] ω

mvL = [mL² + 1/3 (10m) L²] ω

0.65 L = 4.333 L²ω

L = 0.15/ω

ω = 0.15/L

Change in vertical position center of mass of rod is given by,

H = L/2 [1 - cos θ]

Change in vertical position of bug after reaching max height is given by,

h = L [1 - cos θ]

From energy conservation law we can conclude that,

Rotational kinetic energy immediately after collision = Potential energy of bug and stick system at max height .

(1/2) [mL² + 1/3 ML²] ω² = mgh + MgH

(1/2) [mL² + 1/3 (10m) L²] ω² = m(gh + 10gH)

2.167 L²ω² = g (h + 10H)

2.167 L² (0.15/L)² = g [L [1 - cos θ] + 5L [1 - cos θ]] (Substituting the relations from previous)

(2.167) (0.15)² = 6 (9.8) L (1 - cos 8.5)

L = 0.0755 m (Rounding off to nearest fourth decimal places)

L = 7.55 cm

Hence the length of the stick was 7.55 cm.

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The question is incomplete. The complete question will be -

Answer:

x = 4

Step-by-step explanation:

3 + x = 7 ( isolate x by subtracting 3 from both sides )

x = 7 - 3 = 4

Answer:

x=4

Step-by-step explanation:

3+x=7

Subtract 3 from both sides as Subtraction is the opposite of Addition.

So 7-3 = 4

X=4

Answer:

1/2

Step-by-step explanation:

Take any point from the original, like (2,2) If the new point is (1,1) then the change would be 1/2

Answer:

C - 5

Step-by-step explanation:

We know

Emmet had c caramels

His sister took 5 caramels, that means subtract 5, so the equation is

c - 5

Value of mathematical expression by using integer are:

a=10+-2*-2*5

b=10-(-2*-2)+5

c=10-5*10-2*10

An integer is a mathematical term used to describe a whole number that is not a fraction or a decimal. Examples of integers are -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7and so on.

Multiplying 5 with -2 two times and adding it with 10

a=10+(-2×-2×5)

a=30

Multiplying -2 with -2 and subtracting it with 10 and 5

b=10-(-2×(-2))+5

b=-1

Subtracting 10 with multiplication of 5 and 10 and adding it with multiplication with 10 and -2.

a=10-5×10-2×10

a=-60
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Answer:

width=4in.

length=13in

Step-by-step explanation:

let the width of the rectangle be x

then the length will be x+9

Area= length×width

52= (x+9)x

52= x²+9x

x²+9x-52=0

x²+13x-4x-52=0

x(x+13) - 4(x+13)= 0

(x-4)(x+13)=0

x=4 or -13

dimension cannot be negative

hence x=4in

the width is 4in. and the length is 4+9=13in.

The solution is, width=4in.

length=13in

Area is the measure of a region's size on a surface. The area of a plane region or plane area refers to the area of a shape or planar lamina, while surface area refers to the area of an open surface or the boundary of a three-dimensional object.

here, we have,

The area of a rectangle is 52 in^2.

If the length is 9 inches more than the width.

let the width of the rectangle be x

then the length will be x+9

Area= length×width

so, we have,

52= (x+9)x

52= x²+9x

x²+9x-52=0

x²+13x-4x-52=0

x(x+13) - 4(x+13)= 0

(x-4)(x+13)=0

x=4 or -13

dimension cannot be negative

hence x=4in

so, we get,

the width is 4in. and the length is 4+9=13in.

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The answer to the question is C, which is integers 4,5 or -4,-3.

Let's call the first integer x and the second integer x+1 (since they are consecutive).
According to the problem, we can set up the following equation:
x(x+1) = x + (x+1) + 19
We can simplify this equation by expanding the left side and combining like terms on the right side:
x^2 + x = 2x + 20
Now we can move all the terms to one side and get a quadratic equation:
x^2 - x - 20 = 0
We can factor this equation as (x-5)(x+4) = 0, which means the solutions for x are 5 and -4.
Therefore, the two consecutive integers are either 4,5 or -4,-3.
The long answer includes all the steps of solving the quadratic equation:
x^2 - x - 20 = 0
We can use the quadratic formula to solve for x:
x = (-b ± √(b^2 - 4ac)) / 2a
In this case, a=1, b=-1, and c=-20.
x = (1 ± √(1 - 4(1)(-20))) / 2(1)
x = (1 ± √81) / 2
x = (1 ± 9) / 2

The two solutions for x are 5 and -4.
Therefore, the two consecutive integers are either 4,5 or -4,-3.
The product of two consecutive integers is 19 more than their sum. To find the integers, let's represent them as x and x+1.

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Answer:

a) Speed of the cyclist is (2.75/0.4) = 6.875 miles per hour.

b) It will take (5.5/6.875) = 0.8 hours to travel 5.5 miles at this rate.

Answer:

subtract 4 from both sides

Step-by-step explanation:

Given

x² + 2x - 11 = 4

First step : subtract 4 from both sides

x² + 2x - 15 = 0 ← in standard form

Second step : factorise the quadratic

(x + 5)(x - 3) = 0 ← in factored form

Third step : equate each factor to zero and solve for x

x + 5 = 0 ⇒ x = - 5

x - 3 = 0 ⇒ x = 3

Fourth step : state the solutions

solutions are x = - 5, x = 3

By the calculations below, there are 20 groups of 1/5 in 4.

To find out how many groups of 1/5 are in 4, we can use the concept of division of fractions.

Recall that dividing by a fraction is the same as multiplying by its reciprocal. So, we can rewrite the problem as:

4 ÷ 1/5

To find the reciprocal of 1/5, we flip the fraction:

1/5 → 5/1

Now, we can rewrite the division problem as multiplication:

4 ÷ 1/5 = 4 × 5/1

Multiplying across gives:

4 × 5/1 = 20

Therefore, there are 20 groups of 1/5 in 4.

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Answer: It would cost $9.45

$28.20/188= .15

then .15 times 63=9.45

The solution to the equation -0.1 = -10c is c = 0.01.

An equation is simply a mathematical formula that expresses the equality of two expressions, using the equals sign (=) as a connection between them.

Given the equation in the question;

-0.1 = -10c

To solve for the varibale c, first we rewrite the equation as;

-10c = -0.1

Now, divide both sides by the coefficient of c.

-10c / -10 = -0.1 / -10

Note that - / - = +

c = 0.1/10

c = 0.01

Therefore, the value of varibale c is 0.01.

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Answer:

16

Step-by-step explanation:

let boys equal to 5x

and girls equal to 4x

so 4x+5x=36

X=4

so boys are 5*4

boys are 20

and girls are 16

so boys are 4 more than girls

Answer:

16 girls

Step-by-step explanation:

boys : girls : total

5          4        5+4 = 9

take the total number of people and divide by 9

36/9 = 4

Each number should be multiplied by 4

boys : girls : total

5*4        4*4     9*4

20          16        36

There are 16 girls

Answer: Each meat loaf was made with the same amount of ground beef, and Bianca made 5 meat loaves using 8 pounds of ground beef. To find the amount of ground beef in each meat loaf, we can divide the total amount of ground beef used to make the meat loaves by the number of meat loaves.

So, the amount of ground beef in each meat loaf is 8 pounds / 5 meat loaves = 1.6 pounds

In terms of the options provided, 1.6 pounds is equal to 8/5 (Option A)

Step-by-step explanation: