help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ​

Answer:

MJ = 0.7 × 7 = 4.9

Step-by-step explanation:

its 4.9 im sure, its hard to explain it

The value of x or the length of the MJ is 4.9 units after using the similarity property.

It is defined as the law to prove that the two figures have the same shape, but it is not compulsory to have the same size. The ratio of the corresponding sides is in the same proportions and the corresponding angles are congruent.

We have two figures shown in the picture.

The two figures are similar.

By using the similarity property:

4/2.8 = 7/x

After solving:

x = 4.9

or

MJ = 4.9

Thus, the value of x or the length of the MJ is 4.9 units after using the similarity property.

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To find the value of 2 + y², we need to solve the given equation and substitute the obtained value of y into the expression.

Given equation:

r^4 - 4y^2 + 8y^2 = 12y - 9

Combining like terms, we have:

r^4 + 4y^2 = 12y - 9

Now, let's simplify the equation further by factoring:

(r^4 + 4y^2) - (12y - 9) = 0

(r^4 + 4y^2) - 12y + 9 = 0

Now, let's focus on the expression inside the parentheses (r^4 + 4y^2).

From the given equation, we can see that the left-hand side of the equation is equal to the right-hand side. Therefore, we can equate them:

r^4 + 4y^2 = 12y - 9

Now, we can isolate the term containing y by moving all other terms to the other side:

r^4 + 4y^2 - 12y + 9 = 0

Next, we can factor the quadratic expression 4y^2 - 12y + 9:

(r^4 + (2y - 3)^2) = 0

Now, let's solve for y by setting the expression inside the parentheses equal to zero:

2y - 3 = 0

2y = 3

y = 3/2

Finally, substitute the value of y into the expression 2 + y²:

2 + (3/2)^2 = 2 + 9/4 = 8/4 + 9/4 = 17/4

Therefore, the value of 2 + y² is (B) 21/4.

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To find the value of 2 + y², we need to solve the given equation and substitute the obtained value of real number y into the expression.

Given equation:

r^4 - 4y^2 + 8y^2 = 12y - 9

Combining like terms, we have:

r^4 + 4y^2 = 12y - 9

Now, let's simplify the equation further by factoring:

(r^4 + 4y^2) - (12y - 9) = 0

(r^4 + 4y^2) - 12y + 9 = 0

Now, let's focus on the expression inside the parentheses (r^4 + 4y^2).

From the given equation, we can see that the left-hand side of the equation is equal to the right-hand side. Therefore, we can equate them:

r^4 + 4y^2 = 12y - 9

Now, we can isolate the term containing y by moving all other terms to the other side:

r^4 + 4y^2 - 12y + 9 = 0

Next, we can factor the quadratic expression 4y^2 - 12y + 9:

(r^4 + (2y - 3)^2) = 0

Now, let's solve for y by setting the expression inside the parentheses equal to zero:

2y - 3 = 0

2y = 3

y = 3/2

Finally, substitute the value of y into the expression 2 + y²:

2 + (3/2)^2 = 2 + 9/4 = 8/4 + 9/4 = 17/4

Therefore, the value of 2 + y² is (B) 21/4.

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Answer:

\(\frac{4}{15}\)  (4/15)

Step-by-step explanation:

\(\frac{4}{6}=\frac{2}{3}\)

\(\frac{2}{5}*\frac{2}{3};\)

1- Multiply the numerators:

\(2*2=4\)

2- Multiply the denominators:

\(5*3=15\)

3- Thus:

\(\frac{2}{5}*\frac{2}{3}= \frac{4}{15}\)

Hope this helps ;)

Answer: The answer to your question is B.

Explanation: Answer A equals y = 2 (positive), C equals x = -2, and D equals x = 2 (positive) so that only leaves c as the remaining answer. Hope I helped and good luck.

The conversion of a fraction number with denominator 5 and numerator 2 , 2/5 in decimals is equals to the 0.4 value.

A decimal number can be defined as a number whose whole number part and fractional part are separated by a decimal point. Writing 2/5 as a decimal number by converting the denominator to powers of 10. We multiply the numerator and denominator by a number so that the denominator is a power of 10.

2/5 = (2 × 2) / (5 × 2) = 4/10

Now move the decimal point to the left as many places as there are zeros in the denominator, which is a power of 10.

The decimal moved one place to the left because the denominator was 10. Therefore, 4/10 = 0.4. Hence, required value is 0.4.

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Answer:

Step-by-step explanation: (x,y) (4,2)

Answer:

CP = 4500

SP = 5175

As the SP is greater than the CP, it is a profit

Profit = 675

Profit percent = (Profit / CP) * 100

=> (675/4500) * 100

=> 675/45 (As the 2 zeros of hundred in the numerator is cancelled by the 2 zeros of the 4500 in the denominator)

=> 15 (Once you divide 675 by 45)

=> 15 % profit

Therefore, Profit = 15 %

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Answer:

\( \frac{2}{3} n - 11 \geqslant 17\)

\(n \geqslant 42\)

Explanation:

difference equals -

two-thirds equals 2/3

a number n equals variable of n

and 11 equals 11

at least equals _> (but like those together)

For solving equations just use photomath

The solution to the expression is n ≥ 42

An equation, statement of equality between two expressions consisting of variables and/or numbers

An equation is a mathematical expression that contains an equals symbol.

Equations often contain algebra.

Algebra is used in maths when you do not know the exact number in a calculation.

Translating the equation

\(\rm \dfrac{2}{3} \;n-11 \geq 17\)

\(\rm \;n \geq (17 + 11)\times\dfrac{3}{2}\\\\\\ n \geq 42\)

Therefore the solution to the expression is n ≥ 42

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Answer:

Step-by-step explanation:

This seems complicated, huh.  

So think about the question.  They want to know the distance from a line, to a point.  first decide if the point could possibly be on the line and there is zero distance.   The given point is at  (-1, 7)    our coordinates of the point are at  -1 in the X direction and at 7 in the Y direction.  If we were to plug in those two number into the given line equation,   y = 3x  would it be a true statement?  no.    7 = 3(-1)  is not true.   so our given point is not on the line.  Next,  find the right angle to the line and point.  make your own line equation that does have our given point in it.  and is at a right angle to the given line.    recall that using a reciprocal can give you a right angle to your line.  y = (- 1/3)X .  Now we just need the given point to plug into our made up line equation and be true.    7 = (-1/3)(-1) + b    .  we need to make this equation true by moving a number into "b" that makes it true.

b = 6\(\frac{2}{3}\)  or \(\frac{20}{3}\)

7 = (-1/3)(-1) + \(\frac{20}{3}\)

now, when does our made up line, y =(-1/3)x + \(\frac{20}{3}\), intersect with the given line, y=3x,  that is,  set the two equal

3x = (-1/3)x + \(\frac{20}{3}\)

3\(\frac{1}{3}\) X = \(\frac{20}{3}\)

\(\frac{10}{3}\)X = \(\frac{20}{3}\)

X=\(\frac{20}{3}\) * \(\frac{3}{10}\)

X = \(\frac{20}{10}\)

X=2

our two equations intersect at 2,  how handy  :)

now we have our two points that are at a right angle from each other and we just need the distance from them

(given) A(-1,7)   and (found) B(2,6)

Distance = \(\sqrt{(x2-x1)^{2} + (y2-y1)^{2} }\)

then our given points are A(x1,y1)  and B(x2,y2)

Distance = \(\sqrt{(2-(-1))^{2}+(6-7)^{2} }\)

Distance =\(\sqrt{3^{2}+(-1)^{2} }\)

Distance = \(\sqrt{9+1}\)

Distance = \(\sqrt{10}\)

Distance = 3.1622

Distance =3.2 (rounded to nearest 10th)

Yes, that was kinda a lot  :/

Answer:

40 apps in a minute!

Answer:

50° degrees

CARRYONLEARNIG

The total surface area of the cylinder in question is 428.93 m².

How are the parameters of a cylinder determined?
A cylinder is a three-dimensional solid with a parallel circular base and top. The overall height of the cylinder is the perpendicular distance between the top and base.
The area with just curved surfaces, leaving the circular top and base, is referred to as the curved surface area.
Total Surface Area is the combined area of the bases and the curved surface.
Mathematically, curved surface area = 2πrh, where r = radius, h = height of cylinder;
Total surface area = 2πrh + 2πr², where r = radius, h = height of cylinder.

Given, the curved surface area of the cylinder = 352 m²
Height of the cylinder = h = 16 m
Using the formula established above, we have 2πrh = 352 --(i)
Substituting other values in (i), we get 2*3.14*r*16 = 352 ⇒ r = 3.50 m
Again, total surface area of cylinder = 2πrh + 2πr²
Substituting all values, we get TSA = (2*3.14*3.50*16) + (2*3.14*3.50²)
= 428.93 m²
Thus, the total surface area of the cylinder in question is 428.93 m².

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The distance between Garret and Dino is 21 yards.

What is the distance between Garret and Dino?

The distance between the three friends is represented with a triangle. A traingle is a polygon with three sides and three angles.

The formula that would be used to determine the distance between Garret and Dino is:

C² = a² + b² - 2ab · CosC

C² = 17² + 15² - (2 x 15 x 17) Cos 81

C²= 514 - (510 x 0.15643)

C²= 434.24

C = √44.24 = 21 yards

Answer:

Daniel is 8 years old now.

Step-by-step explanation:

From the word problem we can make the following two equations:

Let "K" be Kevin's age now and let "D" be Daniel's age now, then...

K = 3D

K - 4 = 5(D - 4)

Now we substate the value of K, and get...

K - 4 = 5(D - 4)

3D - 4 = 5(D - 4)

3D - 4 = 5D - 20

3D - 5D = - 20 + 4

- 2D = - 16

D = 8

Therefore Daniel is 8 years old now.

Answer:

1. 5²  

2. 5⁴

3. 1/5⁶

4. 5⁰

5. 5¹⁰

Step-by-step explanation:

1. 5⁶⁺⁽⁻⁴⁾=5²

2. 5¹⁺³=5⁴

3. 5⁻³⁺⁽⁻³⁾=5⁻⁶=1/5⁶

4. 5⁽⁻⁴⁾⁺⁴⁺⁰=5⁰

5. 5⁷⁺³=5¹⁰

your answer would be the following:

1. 5²  

2. 5⁴

3. 1/5⁶

4. 5⁰

5. 5¹⁰

Right on EDGE 2021 for math

A mathematical description of hexagon is given above.

In geometry, a polygon is a plane figure that is described by a finite number of straight line segments connected to form a closed polygonal chain.

The bounded plane region, the bounding circuit, or the two together, may be called a polygon.

The segments of a polygonal circuit are called its edges or sides.

Given is hexagon.

In geometry, a hexagon is a six-sided polygon creating the outline of a cube. The total of the internal angles of any simple (non-self-intersecting) hexagon is 720°.

A regular hexagon is defined as a hexagon that is both equilateral and equiangular. It is bicentric, meaning that it is both cyclic (has a circumscribed circle) and tangential (has an inscribed circle).

Therefore, a mathematical description of hexagon is given above.

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The probability of winning $1000 a day for life is approximately 5.245 x 10^-11 and the probability of winning $1000 a week for life is approximately 1.07 x 10^-8. The probability of winning the jackpot ($1000 a day for life) is 1/(60^5 * 4), while the probability of winning $1000 a week for life is 1/(60^5).

In the Florida Lottery Cash4Life game, a player must select five numbers from 1 to 60 and then one Cash Ball number from 1 to 4. The jackpot prize is $1000 a day for life if all five numbers and the Cash Ball match the winning numbers drawn on Monday nights. If just all five numbers match the winning numbers, the player will win $1000 a week for life.
To determine the probability of winning $1000 a day for life, we can use the formula for the probability of independent events: P(A and B) = P(A) x P(B)

(a) To win the jackpot of $1000 a day for life, the player needs to match all five numbers and the Cash Ball. There are 60 options for each of the five numbers and 4 options for the Cash Ball. The total number of possible outcomes is 60^5 (60 choices for each of the five numbers) times 4 (for the Cash Ball). So the probability of winning the jackpot is 1/(60^5 * 4). (b) To win $1000 a week for life, the player needs to match only the five numbers, without considering the Cash Ball. The total number of possible outcomes for this scenario is 60^5. Therefore, the probability of winning $1000 a week for life is 1/(60^5).

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Answer:

y = -16

Step-by-step explanation:

y = -3(12) + 20

y = -36 + 20

y = -16

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The given categories of variables that are mutually exclusive and exhaustive are weekdays and weekend and vowels and consonants.

Mutually exclusive and exhaustive variables: A variable is mutually exclusive and exhaustive if it includes all possible outcomes and each outcome can only be assigned to one variable category.a. Days: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, and Sunday - Mutually exclusive and exhaustiveb. Days: Weekday and Weekend - Mutually exclusive and exhaustive c. Letters: Vowels and Consonants - Mutually exclusive and exhaustive. Letters: Alphabets and Consonants - Not mutually exclusive and exhaustiveThe given categories of variables that are mutually exclusive and exhaustive are weekdays and weekend and vowels and consonants. Hence, the options a and c are correct.

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Answer:

la C

Step-by-step explanation:

Answer:

The answer is x=7

Step-by-step explanation:

3x+18-8x=-17

move all terms to the left:

3x+18-8x-(-17)=0

add all the numbers together, and all the variables:

-5x+35=0

move all terms containing x to the left, all other terms to the right

-5x=-35

x=-35/-5

x=7

Solution given.

Volume of rectangular prism=2400cm³

area of base*height=2400cm³

For A

satisfied for all

for B

not satisfied for all

for C

not satisfied for all

for D.

not satisfied for all

Option A.is your answer.

Answer:

To use the simple interest formula, I = Prt, we substitute in the values for ... Find the principal invested if $178 interest was earned in 2 years at ... In 4 years his brother paid him back the $3,000 plus $660 in interest. ... new car loan statement said he would pay $4,866.25 in interest from ... Get Page Citation.

Step-by-step explanation:

Answer:

a couple different obes

Step-by-step explanation:

there are five

Answer:

10

Step-by-step explanation:

2 butter = 160

160×4=910

Answer:

D) 40 degrees

Step-by-step explanation:

If ray BD bisects <ABC, then we have <ABD and <DBC. Both angles would be the same because the angle bisector theorem states an angle bisector is a ray in the interior of an angle forming two congruent angles. So, the answer is D) 40 degrees.

Answer:

4,600,000,000

Step-by-step explanation:

Don't forget the order of operations

3.243 × 10⁸/7.05

= 46,000,000 × 10²

= 4,600,000,000

or 4.6 × 10⁹

Answer:

4.6x10 to the power of 5

Step-by-step explanation:

7.05×10

2

3.243×10

8

​

Divide them.

\frac{3.243}{7.05}\times \frac{10^8}{10^2}

7.05

3.243

​

×

10

2

10

8

​

Divide numbers and 10's separeately.

0.46\times 10^6

0.46×10

6

Subtract exponents.

(4.6\times 10^{-1})\times 10^6

(4.6×10

−1

)×10

6

Rewrite as a number bigger than 1

4.6\times (10^{-1}\times 10^6)

4.6×(10 −1 ×10 6 )

Associate

4.6\times 10^5

4.6×10 5

Add exponents

The expression for the volume of a closed box with a square base of side x and height h is V = x^2 * h, and the expression for the total surface area of the box is A = 4xh + 2x^2.

(a) The expression for the volume, V, of the closed box is given by V = x^2 * h. This expression represents the product of the area of the square base, x^2, and the height, h, of the box. The unit of measurement for the volume would be cubic units, such as cubic meters or cubic feet, depending on the context.

(b) The expression for the total surface area, A, of the closed box can be obtained by adding the areas of all six faces of the box. The box has four identical rectangular faces, each with an area of x * h, and two identical square faces, each with an area of x^2. Therefore, the total surface area can be expressed as A = 4xh + 2x^2. This expression represents the sum of the areas of all six faces of the box. The unit of measurement for the surface area would be square units, such as square meters or square feet, depending on the context.

In summary, the volume and surface area of a closed box with a square base of side x and height h can be expressed as V = x^2 * h and A = 4xh + 2x^2, respectively. These expressions can be useful in various applications, such as calculating the amount of space needed to store objects or materials or determining the amount of material needed to construct the box.

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Answer:

x=-5

Step-by-step explanation:

6x+4=5x-1

x+4=-1

x=-5