What is the sum?х 3 2++X+ 3X+ 3X+ 3LD 100X+5X+ 3x+5O 3x+276xX+ 3

\(x7 - 2 \: or \: x \leqslant - 3\)

Answer: x= -2/9

Step-by-step explanation:

-12x-2(x+9)=5(x+4)

= -12x-2x+18=5x+20

= -14x+18=5x+20

= -9x+18=20

= -9x=2

/-9    /-9

x= -2/9

Answer:

1.) inverse proportion : 1kx = y

2) direct proportion. y = kx

Answer:

x=-1/4+i*sqrt(47)/4 and x=x=-1/4-i*sqrt(47)/4

Step-by-step explanation:

Using quadratic formula, x=(-1±sqrt(1-48))/4.

x=-1/4+i*sqrt(47)/4 and x=x=-1/4-i*sqrt(47)/4

Answer:

If you do not understand any steps, please feel free to comment down below.

Answer: 4k

Step-by-step explanation:

Answer: 8,137,124

Step-by-step explanation:

You can find the answer by multiplying the number of people by the number of sq miles.
8441 * 964

Answer:

69.5 tons of Alloy 1 (of 45% silver) and 69.5 tons of Alloy 2 (of 95% silver) is needed to make 139 tons of 75% silver alloy

Step-by-step explanation:

Given

\(Alloy\ 1 = 45\%\)

\(Alloy\ 2 = 95\%\)

Required

How much of each alloy is needed for 70% silver alloy 139 tons

Let the amount of alloy 1 needed be x and the amount of 2 needed by y.

So:

\(x + y = 139\)

Make y the subject

\(y = 139 - x\)

The percentage of each needed is represented as:

\(45\% * x + 95\% * y = 139\)

\(45\% * x + 95\% * y = 70\% * 139\)

\(0.45x + 0.95y = 0.70 * 139\)

\(0.45x + 0.95y = 97.3\)

Substitute 139 - x for y in the above equations

\(0.45x + 0.95*(139-x) = 97.3\)

\(0.45x + 0.95*139-0.95*x = 97.3\)

\(0.45x + 132.05-0.95x = 97.3\)

Collect Like Terms

\(0.45x -0.95x = 97.3-132.05\)

\(-0.50x = -34.75\)

Make x the subject

\(x = \frac{-34.75}{-0.50}\)

\(x = 69.5\)

Recall that:

\(y = 139 - x\)

\(y = 139 - 69.5\)

\(y = 69.5\)

This implies that:

69.5 tons of Alloy 1 (of 45% silver) and 69.5 tons of Alloy 2 (of 95% silver) is needed to make 139 tons of 75% silver alloy

Answer:

Operations

Step-by-step explanation:

When simplifying any expression it's always important to use the order of operations to get the correct answer. A way of remembering it was BEDMASS. Which tells you which operation to go with first, and after.

Answer:

Step-by-step explanation:

Huh?

The property illustrated in equation 4(-8+5) = -32 + 20 is the Distributive Property.

The Distributive Property states that when a number is multiplied by a sum or difference in parentheses, it can be distributed or multiplied by each term inside the parentheses separately, and then the results can be added or subtracted.

In this case, the number 4 is multiplied by the sum (-8 + 5). By applying the Distributive Property, we distribute the 4 to each term inside the parentheses:

4(-8 + 5) = (4 * -8) + (4 * 5)

This simplifies to:

4(-8 + 5) = -32 + 20

Finally, we can perform the addition:

-32 + 20 = -12

Therefore, the equation demonstrates the application of the Distributive Property.

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Answer: Greater of equal sign

Step-by-step explanation:

5+10+x is greater than or equal to 30 ( use the greater of equal to sign)

Answer:

∠x and ∠y are congruent or equal

Step-by-step explanation:

∠x and ∠y are congruent or equal because their vertical angles are alternate interior angles.

OR vertical angle of ∠x is congruent with ∠y because they are both corresponding angles

OR vertical angle of ∠y is congruent with ∠x because they are both corresponding angles

The inequality representing the given situation is -

300x + 700y ≤ 7500

Advertising is the practice and techniques employed to bring attention to a product or service. Advertising aims to put a product or service in the spotlight in hopes of drawing it attention from consumers.

Given is that Bobby Flay is deciding how to advertise a new gourmet restaurant that he is opening. An online ad costs $300, and a TV ad costs $700. He has $7,500 to spend on the ads.

We can write the inequality as -

300x + 700y ≤ 7500

where -

{x} - number of online ads posted

{y} - number of TV ads poste

Plot the inequality on the graph. The shaded region represents the possible number of advertisements of each category Bobby can use to advertise.

Therefore, the inequality representing the given situation is -

300x + 700y ≤ 7500

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Answer: D

Step-by-step explanation:

Answer:

$57.38

Step-by-step explanation:

The total bill is $45.90.

They decided to tip the waiter 25%.

Therefore, the total amount they leave will be the total bill plus the amount they will tip.

They amount they tipped is 25% of the total bill. Therefore, the tip is 0.25(45.9) or approximately $11.48 (rounded up).

So, the amount they will leave is the original amount plus the tip. So, in total, they left:

$45.90+$11.48 or $57.38

Answer:

57.38

Step-by-step explanation:

percent means per one hundred, or 1/100.

25%=25/100

45.90 times 25/100= 11.475

Since money doesn't have a thousandthes digit, I just rounded it up to 11.48.

11.48+45.90=57.38

Another way you could do it would be to just mutiply 45.90 by 125/100 to get 57.375, which rounds to 57.38.

The value of the given mathematical expression is a 5/6.

According to the statement

we have to find the value of the 2y/X from the given statement.

So, For this purpose, we know that the

Mathematical expression is an expression is a combination of numbers, variables, functions.

From the given information, The expression is a:

13/(5x + y)= 1/y

Now, rearrange it then

13y/(5x + y)= 1

13y = (5x + y)

Now solve it then the value becomes

13y - y = 5x

12y = 5x

Divide it with the 6 then

2y = 5x/6

Then

2y/x = 5/6.

Now, the expression value becomes is 5/6.

So, The value of the given mathematical expression is a 5/6.

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Answer:

all i think

Step-by-step explanation:

because you just do the math 3 times 3 five times and do the same with the next

Answer:

B) \(4i\sqrt{2}\)

Step-by-step explanation:

\(\sqrt{-2}=i\sqrt{2}\\\sqrt{-18}=i\sqrt{18}=i\sqrt{9*2}=3i\sqrt{2}\\\\\sqrt{-2}+\sqrt{-18}=i\sqrt{2}+3i\sqrt{2}=4i\sqrt{2}\)

Answer:

56=4x

Step-by-step explanation:

I'm not sure about it but i believe thats the answer

Answer:

56 -(4×h)= amount of cupcakes she still has

Step-by-step explanation:

h equals hours

hope this helps

Answer:

Graph y≤150−x (shading down)

Graph y≥120− 7/11x (shading up)

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Answer:

140

Step-by-step explanation:

V=whl=7·4·5=140cm³

Answer:

140cm^3

Step-by-step explanation:

It is 140 because volume is base x length x height so 7 x 5 x 4 = 35 x 4 = 140 cm cubed so 140cm^3

Hope this helps

The simplified expression for (x+6)^2 is x^2 + 12x + 36.

The expression (x+6)^2 represents the square of the sum of x and 6. To simplify this expression, we need to use the formula for expanding a binomial squared, which is (a+b)^2 = a^2 + 2ab + b^2.

Applying this formula to our expression, we get:

(x+6)^2 = x^2 + 2(x)(6) + 6^2

Simplifying further:

(x+6)^2 = x^2 + 12x + 36

In summary, to simplify the expression (x+6)^2, we use the formula for expanding a binomial squared and simplify the resulting terms to get the simplified expression x^2 + 12x + 36.

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The characteristics of a dataset indicate that linear regression (the kind we know how to do) may NOT be appropriate are, The data are drawn from 2 or more distinct groups, and A scatterplot of the data looks like a V.

These two characteristics indicate that linear regression may not be appropriate because the linear regression model assumes a linear relationship between the independent variable(s) and the dependent variable.

If the data are drawn from two or more distinct groups, this may indicate multiple relationships; therefore, a linear model may not be appropriate. If the scatterplot looks like a V, this may indicate a non-linear relationship, so a linear regression model may not be appropriate either.

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Answer:

Step-by-step explanation:

First, you could factor 2 out of the whole thing.  The result would be 2(x^2-4x-45). Now we find the factors of 45 which are 1, 45, 5, 9, 15, 3. We have to find the pair that adds up to 4, and multiply to get 45. After some guess and check, we can find that 5 and 9 are those numbers. Now we have to get the right signs. Since the result is a negative number for -8k, and -90, the number that is a negative must be less than the other negative. -9<-5, so the answer would be 2(x-9)(x+5)

Answer:

5.8818 × 102

Step-by-step explanation:

btw the 2 is an exponet lol

The missing ordered pairs that satisfy the equation y = 2x + 4 are (3, 10) and (2, 8).

The equation given is y = 2x + 4. To compute the missing x and y values, we need to substitute the given ordered pairs into the equation and solve for the missing variable.

Let's assume we have an ordered pair (x, y) that satisfies the equation y = 2x + 4.

For example, let's say one missing value is x = 3. We can substitute this into the equation:

y = 2(3) + 4

y = 6 + 4

y = 10

So, the missing ordered pair is (3, 10).

Similarly, if another missing value is y = 8, we can substitute this into the equation and solve for x:

8 = 2x + 4

4 = 2x

x = 2

So, the missing ordered pair is (2, 8).

In summary, the missing x and y values that satisfy the equation y = 2x + 4 are (3, 10) and (2, 8).

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At x = 86 gives minimum value of surface area and the dimensions of the box that minimize the amount of material used.

The surface area of an object refers to the overall space filled by its surfaces. Different 3D shapes in geometry have various surface areas, which may be quickly estimated using the formulas we shall learn in this lesson. Two categories are used to classify the surface area:

Curved surface area or Lateral surface area

Surface area in total

V = x²h = 318028

h = 318028 / x²

∴ A( x ) = x² + 4ah = x² + 1272112 / x .

 Derivative of A(x)

= 2x - 1272112 / x² = 0

After solving

x³ = 636056

x= 86

After doing double derivative we get the point as Positive,

A''(x) = 2 + 2544224 / x³

A''(86)= 6

Hence at x = 86 gives minimum value of surface area.

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The area of the square with a side length of 3.1 meters is 9.61 square meters.

To find the area of a square, we need to multiply the length of one side by itself. In this case, the square has a side length of 3.1 m.

Area of a square = side length × side length

Substituting the given side length into the formula:

Area = 3.1 m × 3.1 m

To perform the calculation:

Area = 9.61 m²

It's worth noting that when calculating the area, we are working with squared units. In this case, the side length is in meters, so the area is expressed in square meters (m²). The area represents the amount of space enclosed within the square.

Remember, to find the area of any square, you simply need to multiply the length of one side by itself.

The area of the square with a side length of 3.1 meters is 9.61 square meters.

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Answer:

H0 : μ = 120

H1 : μ < 120

We Can conclude that the number of infants that contract typhoid has reduced because the wells were put in place.

Step-by-step explanation:

Average Number of infants who contracted typhoid monthly = 120

Average Number of infants who contracted typhoid monthly after well installation = 90

The null and alternative hypothesis :

H0 : μ = 120

H1 : μ < 120

Obtain the test statistic :

(Xbar - μ) ÷ s/sqrt(n)

(90 - 120) ÷ 40/sqrt(9)

-30 ÷ 13.3333

= - 2.25

The Pvalue at 95% confidence, df = n-1 = 9 - 1 = 8

Tcritical at 95%, df = 8 ; one tailed = 0.02728

Decision region :

Pvalue < α ; Reject H0

0.02728 < 0.05 ; Hence, we conclude that there is significant evidence that the average number of infants that contract typhoid has decreased because the wells were put in place.

The equation is y = 2 + √x

Domain : {0, ∞}

Range :  { 2, ∞ }

What is Domain and Range ?

The range of values that we are permitted to enter into our function is known as the domain of a function.The x values for a function like f make up this set (x).A function's range is the collection of values it can take as input.After we insert an x, the function outputs this set of values.

Given equation is,

y = 2 + √x

We have the square root, so the value cannot be negative.

so , x ≥ 0

so the domain is ,  {0, ∞}, {x | x ≥ 0}

find the range,

y( x → 0)

⇒ y = 2 + √0 = 2

So the range is, { 2, ∞ } {y | y  ≥ 2}

The graph is given below↓↓

Therefore, The equation is y = 2 + √x

Domain : {0, ∞}

Range :  { 2, ∞ }

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