8. 8x-2y 10 xy (if x = 4 and y = -7)

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The slope of the situation is determined as: A 0.95.

The slope of a situation is always the unit rate. And it is represented in a linear equation as m in y = mx + b.

In the linear equation above, the value of b is the initial value or additional value.

Interpreting the situation given, we have the following:

The y-intercept, b, is the additional cost = $7.25

The cost of 1 bagel = the slope / unit rate

12 bagels costs $11.40

Slope (m) = $11.40 / 12 = $0.95

This means that the slope of the situation is represented as: A. 0.95.

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Answer:

See below

Step-by-step explanation:

Cost of movie => x

Cost of video game => y

5x + 3y = 24

2x + 12y = 69 or 34.5-6y = x

Substitute

5x + 3y = 24

5(34.5-6y) + 3y = 24

172.5 - 30y + 3y = 24

-27y = -148.5

y = 5.5

34.5-6y = x

34.5-6(5.5) = x

x = 1.5

1) missing number is 7 (answer #2)

Each circles' numbers add up to 20. (the first one is 1 + 9 + 10, the second is 5 + 4 + 11.)

20 minus 10 minus 3 is 7, so that's the missing number.

2) missing number is 3 (answer #4)

This one's similar to the previous question. Each square's numbers have a sum of 10, this time. (First square is 2 + 7 + 1 + 0, second is 4 + 3 + 1 + 2.)

10 minus 6 minus 1 minus 0 is the same as 10 minus 7. This equals 3- so there's the number that's missing!

Hopefully this helps!

The minimum value of V occurs at x ≈ 0.93, which means that the volume of the box is smallest when the height is about 0.93 units.

To find the extreme values of V, we need to take the derivative of V and set it equal to zero. So, let's begin:

\(V(x) = x(10-2x)(16-2x)\)
Taking the derivative with respect to x:
\(V'(x) = 10x - 4x^2 - 32x + 12x^2 + 320 - 48x\)
Setting V'(x) = 0 and solving for x:
\(10x - 4x^2 - 32x + 12x^2 + 320 - 48x = 0\\8x^2 - 30x + 320 = 0\)
Solving for x using the quadratic formula:
\(x = (30 ± \sqrt{(30^2 - 4(8)(320))) / (2(8))\\x = (30 ± \sqrt{(1680)) / 16\\x = 0.93 or x =5.07\)
So, the extreme values of V occur at x ≈ 0.93 and x ≈ 5.07. To determine whether these are maximum or minimum values, we need to examine the second derivative of V. If the second derivative is positive, then the function has a minimum at that point. If the second derivative is negative, then the function has a maximum at that point. If the second derivative is zero, then we need to use a different method to determine whether it's a maximum or minimum.

Taking the second derivative of V:
V''(x) = 10 - 8x - 24x + 24x + 96
V''(x) = -8x + 106

Plugging in x = 0.93 and x = 5.07:
V''(0.93) ≈ 98.36 > 0, so V has a minimum at x ≈ 0.93.
V''(5.07) ≈ -56.56 < 0, so V has a maximum at x ≈ 5.07.

Now, to interpret these values in terms of the volume of the box, we need to remember that V(x) represents the volume of a box with length 2x, width 2x, and height x. So, the maximum value of V occurs at x ≈ 5.07, which means that the volume of the box is greatest when the height is about 5.07 units. The minimum value of V occurs at x ≈ 0.93, which means that the volume of the box is smallest when the height is about 0.93 units.

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a) The extreme values of V are:

Minimum value: V(0) = 0

Relative maximum value: V(3) = 216

Absolute maximum value: V(4) = 128

b) The absolute maximum value of V at x = 4 represents the case where the box has a square base of side length 4 units, height 2 units, and width 8 units, which has a volume of 128 cubic units.

a) To find the extreme values of V, we first need to find the critical points of the function. This means we need to find where the derivative of the function equals zero or is undefined.

Taking the derivative of V(x), we get:

\(V'(x) = 48x - 36x^2 - 4x^3\)

Setting this equal to zero and solving for x, we get:

\(48x - 36x^2 - 4x^3 = 0\)
4x(4-x)(3-x) = 0

So the critical points are x = 0, x = 4, and x = 3.

We now need to test these critical points to see which ones correspond to maximum or minimum values of V.

We can use the second derivative test to do this. Taking the derivative of V'(x), we get:

\(V''(x) = 48 - 72x - 12x^2\)

Plugging in the critical points, we get:

V''(0) = 48 > 0 (so x = 0 corresponds to a minimum value of V)
V''(4) = -48 < 0 (so x = 4 corresponds to a maximum value of V)
V''(3) = 0 (so we need to do further testing to see what this critical point corresponds to)

To test the critical point x = 3, we can simply plug it into V(x) and compare it to the values at x = 0 and x = 4:

V(0) = 0
V(3) = 216
V(4) = 128

So x = 3 corresponds to a relative maximum value of V.
b) In terms of the volume of the box, the function V(x) represents the volume of a rectangular box with a square base of side length x and height (10-2x) and width (16-2x).
The minimum value of V at x = 0 represents the case where the box has no dimensions (i.e. it's a point), so the volume is zero.
The relative maximum value of V at x = 3 represents the case where the box is a cube with side length 3 units, which has a volume of 216 cubic units.
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Answer:

x = 1

Step-by-step explanation:

3x + 1/2 (2x + 6) = 6x + 1

3x + x + 3 = 6x + 1

4x + 3 = 6x + 1

2 = 2x

x = 1

First step is wrong (x-2) × 3x³ should be 3x⁴ - 6x³

not 6x²

Answer:

y = 1/2x + 5

Step-by-step explanation:

We can use point slope form since we are given a point and the slope

y -y1 = m( x-x1)

where ( x1,y1) is a point and m is the slope

y -0 = 1/2 (x- -10)

y = 1/2( x+10)

y = 1/2x + 5

Answer:

See below for answers

Step-by-step explanation:

y=5(2)ˣ

y=5(2)⁻²=5(1/2²)=5(1/4)=5/4

y=5(2)⁻¹=5(1/2¹)=5(1/2)=5/2

y=5(2)⁰=5(1)=5

y=5(2)¹=5(2)=10

y=5(2)²=5(4)=20

We write out and number the equations

Therefore, the compound interest of the annuity due of BD 400 paid each 4 months for 6.2 years at a nominal rate of 3% per annum is BD 40,652.17.

Compound interest of an annuity due can be calculated using the formula:A = R * [(1 + i)ⁿ - 1] / i * (1 + i)

whereA = future value of the annuity dueR = regular paymenti = interest raten = number of payments First, we need to calculate the effective rate of interest per period since the nominal rate is given per annum. The effective rate of interest per period is calculated as

:(1 + i/n)^n - 1 = 3/1003/100 = (1 + i/4)^4 - 1

(1 + i/4)^4 = 1.0075i/4 = (1.0075)^(1/4) - 1i = 0.0303So,

the effective rate of interest per 4 months is 3.03%.Next, we can substitute the given values in the formula:

A = BD 400 * [(1 + 0.0303)^(6.2 * 3) - 1] / 0.0303 * (1 + 0.0303)A = BD 400 * [4.227 - 1] / 0.0303 * 1.0303A = BD 400 * 101.63A = BD 40,652.17

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The statement "The mean decreases as the degrees of freedom increase" is not true about chi-square distributions.

In fact, the mean of a chi-square distribution is equal to its degrees of freedom. It does not decrease as the degrees of freedom increase.

The mean remains constant regardless of the degrees of freedom. This is an important characteristic of chi-square distributions.

Regarding the other statements:

In summary, the statement that is not true about chi-square distributions is that the mean decreases as the degrees of freedom increase.

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The Probability of spinning an odd number both times is \(\dfrac{1}{2}\).

Probability is calculated by the ratio of favourable outcomes and the total number of outcomes.

The total number of outcomes of spinning numbers will be 4 that is 1,2,3,4.

And in which the odd numbers are 1,3.

Therefore the favourable outcome of spinning an odd number both the times will be 2.

Then, the probability will be

\(P=\dfrac{2}{4} \\P=\dfrac{1}{2}\)

So, the probability of spinning an odd number both times will be \(\dfrac{1}{2}\).

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Germany and the US are sending tanks to Ukraine as a show of support for the government in Kyiv, with Germany sending 14 Leopard 2 tanks & the US delivering 31 Abrams in the coming months.

The rationale behind this military aid is to demonstrate solidarity with Ukraine in its ongoing conflict with Russia & to bolster its military capabilities in the face of aggression. This move is seen as a signal to Russia that the international community will not tolerate further military incursions into Ukrainian territory and is committed to supporting Ukraine's sovereignty & territorial integrity. It is also hoped that this aid will help stabilize the situation in Ukraine and bring about a peaceful resolution to the conflict.

Centi, mili, micro and nano are not types of military equipment. Centi, mili, micro and nano are units of measurement used in the metric system.

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We should add 25 to make it a perfect square.

Given is an expression 4x²+20x, we need to add a term to make it a perfect square,

So,

4x²+20x

= (2x)² + 2 × 2 × 5 × x

Add and subtract 25.

= (2x)² + 2 × 2 × 5 × x + 25 - 25

= (2x)² + 2 × 2 × 5 × x + 5² - 25

= (2x+5)² - 25

Hence we should add 25 to make it a perfect square.

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Answer:

TRUE

Step-by-step explanation:

symbol CAN’T be used to represent two different values in the same equation at the same time.

An equation remains the same if the LHS and the RHS are interchanged.

It is TRUE statement.

An equation is a condition on a variable (or variables) such that two expressions in the variable (variables) have equal value. The value of the variable for which the equation is satisfied is called the solution or root of the equation. An equation remains the same if the LHS and the RHS are interchanged.

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Answer:

no it isn't bc 6 is the longest sides,it would have to be a hypotenuse this shows that the three sides do NOT satisfy the Pythagoreen Theroem

Answer:

All right triangles follow Pythagorean theorem. (a² + b² = c² )This triangle is not a right triangle because the sum of both sides squared doesn't equal to the sum of the hypotenuse squared. For example 5²+ 4² \(\neq\) 6².

But there is also a rule to finding out what type of triangle it is.

Right triangle = a² + b² = c²

Obtuse Triangle = a² + b² > c²

Acute Triangle = a² + b² < c²

But if the sum of the two sides are less than the hypotenuse its not a triangle.

Not a Triangle = a + b < c

Dont Forget to give thanks and vote Brainliest! :)

Answer:

\(\frac{-7}{10}\ or \ 0.7\)

Step-by-step explanation:

step 1.

\(\frac{1}{3} (\frac{-6}{4}-\frac{1}{2}(\frac{6}{5}))\)

step 2.

put it in a calculator

step 3

=\(\frac{-7}{10}\ or \ 0.7\)

Answer:

6 possible intergers brainliest me

Answer:

its 7

Step-by-step explanation:

Answer:

ab

Step-by-step explanation:

Answer:

not sure exactly what its asking but if its asking the slope and y-intercept of this equation is here.

Step-by-step explanation:

the slope is 1/4 while the y-intercept is -8 or (0,-8)

Answer: slope: 1/4

y-intercept: (0,-8)

Hope this helps and good luck :)

Step-by-step explanation:

Answer:

When your graph is a horizontal line the slope will be zero.

Step-by-step explanation:

The slope is the rise over the run.  If you have a horizonal line, the rise is zero.

Answer:It is 170

Step-by-step explanation: i did that one a couple months ago

Answer:

the slope is 1

you find two points that are directly on an intersection of the grid. and then count rise/run

rise is going up and down and run is left and right

start at the point you found furthest to the left and count to the next point that's to the right.

if you have to go down to find it or left to find it, the slope is negative

in this case. theres a point at (-1,0) and (0,1)

you have to count up one and right one, making the slope 1/1 or simplified to 1

Step-by-step explanation:

I hope this helps :)

Matrix multiplication involves the multiplication of matrices in a specific order. In the classical matrix multiplication problem, the objective is to find the most efficient way to multiply the matrices to get the least number of scalar multiplications. However, in a variant of the matrix-chain multiplication problem, we are required to find the most efficient way of parenthesizing the sequence of matrices so as to maximize,

rather than minimize, the number of scalar multiplications. In this variant of the problem, we are looking to find the parenthesization of the matrix that results in the largest number of scalar multiplications. This variant of the matrix-chain multiplication problem does exhibit optimal substructure. Optimal substructure is a property of problems where the solution to the problem can be determined by the optimal solutions to its subproblems.

This variant of the matrix-chain multiplication problem involves breaking down the matrix into submatrices, and then determining the best way of multiplying these submatrices to get the largest number of scalar multiplications. This process involves solving subproblems that have the same structure as the original problem, which makes it possible to determine the optimal substructure of the problem.

This makes it possible to use dynamic programming to solve the problem efficiently. In dynamic programming, we can solve subproblems of the problem only once and store the solutions so that they can be accessed later when solving the larger problem. Therefore, this variant of the matrix-chain multiplication problem can be solved optimally using dynamic programming, and it exhibits optimal substructure.

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Answer: x = 5

Step-by-step explanation: it is 392079∞¢•¶¶§∞¶∞§¶6

Perimeter would be approximately 23.57 ft

Consider triangle ABC is an isosceles triangle,

In which AB = AC,

And, m∠A = 150°,

∵ AB = AC ⇒ m∠B = m∠C,

Now sum of all interior angles of a triangle is 180°,

i.e. m∠A + m∠B + m∠C = 180°,

150°+ m∠B + m∠B= 180°,

2m∠B + 150° = 180°

2m∠B = 30°

⇒ m∠B = 15°

Let D ∈ BC such that AD ⊥ BC,

∵ Altitude of an isosceles triangle is its median,

i.e, BD = DC or BD = (1/2) BC

In triangle ADB,

⇒ Tan 15 = AD/BD

⇒ Tan 15 = 2AD/BC

⇒ AD = (BC tan15)/2     ......(i)

Now, area of triangle ABC = (1/2)xBCxAD

If area = 9 square ft,

From equation (1),

(1/2)x(BC tan15)/2 x  BD =  9

⇒ BC² = 36/tan15 = 134.35

⇒ BC = 11.59 ft

From equation (1),

AD = 1.55

Using Pythagoras theorem,

⇒ AB = √(AD² + BD²)

⇒ AB = 5.99 ft

Hence, perimeter of the triangle ABC= AB + BC + CA

= 5.99 + 11.59 + 5.99

= 23.57 ft

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Answer:

Step-by-step explanation:

Area=1/2(bh)

b=x

height=2x-2, units meters

30=(1/2)bh

60=bh=x(2x-2)

2x^2-2x=60

2x^2-2x-60=0

x^2-x-30=0

(x-6)(x+5)=30

x=6 as only positive root.

2x-2=10

Their product is 60 m^2, half of which is 30 m^2

The base is 6 m; the height is 10 m.

Answer: Let's say the total number of students surveyed is "x".

We know that 65% of the students surveyed said their favorite color was red, which means that 325 students said their favorite color was red.

We can set up a proportion to solve for "x":

65/100 = 325/x

To solve for "x", we can cross-multiply:

65x = 32500

Dividing both sides by 65, we get:

x = 500

Therefore, Hakeem surveyed 500 students in total.

Step-by-step explanation: