Math help please urgent please help

Answer:

92%

Step-by-step explanation:

Each Quarter = 2%

If 46 of 50 are quarters, 46x2=92

Answer:

8  number of cakes were sold.

Step-by-step explanation:

Out of 12 baked goods sold , let the number of cakes sold be x in number and pies sold were 12 − x in number. Total sell was $ 144 , 1 cake costs $ 14 and 1 pie costs $ 8 ∴ 14 ⋅ x + ( 12 − x ) ⋅ 8 = 144 or 14 x − 8 x = 144 − 96 or 6 x = 48 ∴ x = 8 Therefore, 8 cakes were sold [Ans]

Answer:

3 cakes

Step-by-step explanation:

3x8=24

112-24=88

88/11=8

3cakes +8 pies= 11 baked goods

Answer:

c) (x +2)

e) ( 5 x -2)

Step-by-step explanation:

Explanation:-

Given equation  5 x² + 8 x – 4

The factors of  - 20 = 10 × - 2

                   ⇒      5 x ² + 10 x - 2 x - 4

                    ⇒      5 x ( x + 2) - 2 ( x + 2)

                     ⇒     (5 x - 2 ) ( x + 2)

The multiplies of given equation

                           5 x² + 8 x – 4 =   (5 x - 2 ) ( x + 2)

Answer:

1. false

2. true

3. false

4. false

Step-by-step explanation:

1. 128 is not equal to 125

2. 119.7 = 119.7

3. 13.2 is not equal to 1.32

4. 5.88 is not equal to 12

(a) The Taylor series expansion of f(x) = e^{5x} about x = 0 is Σ(n=0 to ∞) [(5^n)/(n!)]x^n, with radius of convergence = ∞.

(b) The Taylor series expansion of f(x) = sin(πx) about x = 1 is Σ(n=0 to ∞) (-1)^n π^(2n+1)/(2n+1)!^(2n+1), with radius of convergence = 1.

(a) To find the Taylor series expansion of e^{5x} about x = 0, we can use the formula for the Taylor series of e^x, substituting 5x for x, to get:

e^{5x} = Σ(n=0 to ∞) [(5x)^n/n!] = Σ(n=0 to ∞) [(5^n)/(n!)]x^n

The radius of convergence of this series is ∞, because the ratio of consecutive terms is (5x)/(n+1), which approaches 0 as n approaches infinity for any finite x.

(b) To find the Taylor series expansion of sin(πx) about x = 1, we can use the formula for the Taylor series of sin(x), substituting π(x-1) for x, to get:

sin(πx) = Σ(n=0 to ∞) (-1)^n π^(2n+1)/(2n+1)!^(2n+1)

The radius of convergence of this series is 1, because the ratio of consecutive terms is π(x-1)/(2n+1), which approaches π as n approaches infinity for x = 1, and is greater than π for x > 1, causing the series to diverge.

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The volume of a rectangular prism with a base area of 27 cm² and a height of 3 cm is calculated by multiplying the base area by the height, resulting in a volume of 81 cm³.



To find the volume of a rectangular prism, you need to multiply the area of the base by the height. In this case, the area of the base is given as 27 cm² and the height is 3 cm.

The formula for the volume of a rectangular prism is:

Volume = Base Area × Height

Substituting the given values into the formula, we have:

Volume = 27 cm² × 3 cm

Calculating the multiplication, we get:

Volume = 81 cm³

Therefore, the volume of the rectangular prism is 81 cm³.

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Answer:

5 (7x-8)

Hope this helped :)

The slope-intercept form of the equation for the line passing through the points (1,1) and (7,-4/5) is y = (-3/10)x + 13/10. To find the slope-intercept form of the equation using the given points (1,1) and (7,-4/5), we first need to find the slope (m) of the line.

The slope of a line passing through two points (x1,y1) and (x2,y2) is given by the formula:

m = (y2 - y1) / (x2 - x1)

Let's substitute the values from the given points into the formula:

m = (-4/5 - 1) / (7 - 1)

  = (-9/5) / 6

  = -9/30

  = -3/10

Now that we have the slope (m), we can write the equation of the line in slope-intercept form, which is y = mx + b, where m is the slope and b is the y-intercept.

Using the slope (-3/10) and the coordinates of one of the points (1,1), we can solve for the y-intercept (b):

1 = (-3/10)(1) + b

1 = -3/10 + b

b = 1 + 3/10

b = 10/10 + 3/10

b = 13/10

Therefore, the equation of the line in slope-intercept form is y = (-3/10)x + 13/10.

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Answer:

Step-by-step explanation:

If we're going by estimation, then you can do 11 and 7 hours, meaning that she would make 77 for the 7 hours but the exact answer would be a bit less than the estimation

10.9 times 6.75 is 73.58 roughly. so 3 dollars and 42 cents off

Answer:

1. She could use 7 hours and 11 dollars per hour.

2. $77 (7x11)

3 I'd say my estimate is a little more than the exact amount because I did 6.75 (6.75 because 45 minutes is 75% of a hour) x 10.90 and got 73.575.

Your current monthly income, before the effect of inflation, is approximately $2,129.63.

To determine your current monthly income, we need to account for the effect of inflation on the purchasing power of your income. Given that the inflation rate is eight percent, we can calculate the original income before the inflation adjustment.

Let's denote your current monthly income as "X."

The purchasing power after accounting for eight percent inflation is $2,300. This means that your original income, before the inflation adjustment, would have had a higher value. We need to find this original income.

Inflation reduces the purchasing power of your income, so we need to increase the current purchasing power by the inflation rate to find the original income. In this case, we'll increase $2,300 by eight percent:

Original Income = $2,300 / (1 + 0.08)

Original Income = $2,300 / 1.08

Original Income ≈ $2,129.63

Therefore, your current monthly income, before the effect of inflation, is approximately $2,129.63.

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Left-handedness is _more_______ common than usual among mathematicians and ___more_____ common than usual among artist

The relationship between handedness and mathematical ability is still highly controversial.

While some researchers have claimed that left-handers are gifted in mathematics and strong right-handers perform the worst in mathematical tasks, others have more recently proposed that mixed-handers are the most disadvantaged group.

However, the studies in the field differ with regard to the ages and the gender of the participants, and the type of mathematical ability assessed.

To disentangle these discrepancies, we conducted five studies in several Italian schools (total participants: N = 2,314), involving students of different ages (six to seventeen) and a range of mathematical tasks.

The results show that (a) linear and quadratic functions are insufficient for capturing the link between handedness and mathematical ability; (b) the percentage of variance in mathematics scores explained by handedness was larger than in previous studies.

The last theory drawing a causal link from handedness to mathematical ability through cognition is the hemispheric indecision hypothesis.

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Answer:

on what's app ?

Step-by-step explanation:

or telegram ?

The solutions of the inequality \(2x^{2} + x - 6 = 0\) are 3/2, -2. This can be found by using the Quadratic Formula, which states that for any quadratic equation of the form \(ax^{2} +bx + c = 0\), the solutions are \(x = -b +/-\sqrt{b^{2} -4ac} /2a\).

Discriminant: b² - 4 a c = 1 - 4(2)(-6) = 1 + 48 = 49

Solution 1: x = \(-b + \sqrt{b^{2} -4ac} /2a\) = (-1 + √49)/(2×2) = (-1 +7)/4 = 6/4 = 3/2

Solution 2: x = \(-b-\sqrt{b^{2} -4ac} /2a\)= (-1 - √49)/(2×2) = -8/4 = -2

So, the two solutions are 3/2 and -2.

The equation can also be written as,

\(2x^{2} +4x -3x-6=0\)

\(2x(x+2) -3(x+2) = 0\)

\((2x-3)(x+2) = 0\)

x = 3/2, -2

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The equivalent value of the expression is x = 65

Given data ,

The equation is represented by the letter A , where

By substituting the values in the equation, we obtain the value of A as

5x + 1 + 5x - 1 - 650 = 0

Taking the similar terms of the expression:

10x - 650 = 0

Adding 650 to both sides:

10x = 650

Dividing both sides by 10:

x = 65

Hence , the expression is x = 65

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Algorithms are the mathematical formulas placed in software that performs an analysis on a dataset.

An algorithm in math is a procedure, a description of a set of steps that can be used to solve a mathematical computation.

Now,

Hence, Algorithms are the mathematical formulas placed in software that performs an analysis on a dataset.

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A two-tailed test seeks evidence that the population parameter for sample (1) is either greater than or less than the population parameter for sample (2).

For a two-sample hypothesis which tests for differences in population parameters (1) and (2), a two-tailed test seeks evidence that there is a significant difference between the means of the two populations, regardless of the direction of the difference.

In other words, the null hypothesis is that there is no difference between the two population means, and the alternative hypothesis is that there is a difference between them, either in the positive or negative direction.

The two-tailed test is used when we do not have any prior knowledge about the direction of the difference and want to be able to detect any significant difference, whether it is positive or negative.

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Answer:

\(2\sqrt{6}\)

Step-by-step explanation:

\(\sqrt{6} +\sqrt{6} =2\sqrt{6}\)

Answer:

(1) x=5 (2) I think the answer to 16 is 3/5 but not 100% sure

Step-by-step explanation:

(1) 29=5x+4

Step 1: Flip the equation.

5x+4=29

Step 2: Subtract 4 from both sides.

5x+4−4=29−4

5x=25

Step 3: Divide both sides by 5.

5x /5 =  25 /5

x=5

To form a polynomial with given zeros and degree, we need to use the fact that if a polynomial has a zero of x = a, then it can be factored as (x - a) times some other polynomial.

This means that if we know the zeros of a polynomial, we can write it in factored form, and then multiply out the factors to get the polynomial in standard form.

The degree of the polynomial tells us how many factors are necessary. For example, if the degree is 3, we know that the polynomial can be factored into three linear factors, one for each zero.

To illustrate this process, let's say we want to form a polynomial of degree 4 with zeros of x = 2, x = -1, and x = 3. We would start by writing the polynomial in factored form as:

f(x) = (x - 2)(x + 1)(x - 3)(ax + b)

Since the degree is 4, we need to include one more factor. We can use the coefficients a and b to determine this factor. To do so, we can either use the value of the leading coefficient (which is a in this case) or a point on the polynomial (i.e., a value of x and f(x)).

Once we have determined the value of a, we can solve for b by setting a point on the polynomial equal to a known value.

Finally, we can multiply out the factors to get the polynomial in standard form:

f(x) = (x - 2)(x + 1)(x - 3)(2x - 4)

f(x) = 2x^4 - 8x^3 - 13x^2 + 22x - 12

In conclusion, to form a polynomial with given zeros and degree, we need to use the fact that a polynomial can be factored as (x - a) times some other polynomial if it has a zero of x = a.

We can write the polynomial in factored form, determine the missing factor(s) using the degree and coefficients, and then multiply out the factors to get the polynomial in standard form.

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Step-by-step explanation:

Question 1:

Question 2:

Answer:

0.64y = 40.

Question 2:

0.45z = 72

z = 72 * (1/0.45) = 160.

Step-by-step explanation:

The base of the function \(y = 22000(0.86)^t\) is 0.86 for the given data in the question.

What is exponential decay?Exponential decay is a type of mathematical behavior that occurs when a function's rate of decay is proportional to the function's current value.

As a result, the amount of time it takes for the function to decay by a certain proportion is consistent throughout the decay process. What is the exponential decay formula?

The exponential decay formula is expressed as follows:y = a(1 - r) tWhere:y = final amounta = initial amountr = rate of decayt = time

What is the decay factor?The decay factor is defined as the constant ratio between the initial amount of material and its amount at a later time. This ratio is used to calculate the time needed for a quantity to decay to a certain level.

Here in the given function, the base of the function \(y=22000(0.86)^t\) is 0.86. Therefore, the correct answer is "The base of 0.86 is a decimal number between 0 and 1 that determines the rate of decay of the car's value."

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To fill nine 1-lb tins with a snack mix containing twice as much nuts as raisins by weight using almonds for $2.45/lb. , peanuts for 1.85/lb., and raisins for 80 /lb. , you should buy 1.58 pounds of almonds, 3.16 pounds of peanuts, and 4.74 pounds of raisins.

You can use the following method to fill nine 1-lb tins with a snack mix:

Let x be the quantity of almonds in pounds.

Then 2x is the quantity of peanuts.

And 3x is the quantity of raisins.

To have twice as much nuts as raisins by weight, you must have 6 pounds of nuts and 3 pounds of raisins.

The cost of almonds is $2.45/lb, peanuts are 1.85/lb,andraisinsare.80/lb.

We can set up a system of equations to represent this problem:

2.45x + 1.85(2x) + .80(3x) = 15

Simplifying this equation gives:

7.95x = 12.6

Therefore, x = 1.58.

So you should buy 1.58 pounds of almonds, 3.16 pounds of peanuts, and 4.74 pounds of raisins.

To represent this system using a matrix equation, we can use the following matrix:

[2.45 3.70 .80] [x]   [15]

[2x]

[3x]

This can be written as Ax = b, where A is the coefficient matrix, x is the variable matrix, and b is the constant matrix.

To fill nine 1-lb tins with a snack mix containing twice as much nuts as raisins by weight using almonds for $2.45/lb. , peanuts for 1.85/lb., and raisins for 80 /lb. , you should buy 1.58 pounds of almonds, 3.16 pounds of peanuts, and 4.74 pounds of raisins1. We can represent this system using a matrix equation Ax = b where A is the coefficient matrix [2.45 3.70 .80], x is the variable matrix [x;2x;3x], and b is the constant matrix [15]. Solving this equation gives us x = [1.58;3.16;4.74]

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If we want to provide a 99% confidence interval for the mean of a population, the confidence coefficient will be 0.99. This means that there is a 99% probability that the true population mean falls within the calculated interval.

The confidence coefficient for a confidence interval represents the level of confidence we have in our estimate.

In the case of a 99% confidence interval, the confidence coefficient is 0.99. This means that we are 99% confident that the true population mean falls within the calculated interval. The confidence coefficient is derived from the desired level of confidence, which is typically expressed as a percentage.

A higher confidence level corresponds to a larger confidence coefficient. In practical terms, a 99% confidence interval indicates that if we were to repeat the sampling process multiple times and construct 99% confidence intervals, approximately 99% of those intervals would contain the true population mean.

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We are given a path c, and a vector field f. The path c is defined by r(t) = (t³, t², -2t) for 0 ≤ t ≤ 1. The vector field f = (-4sin x, 5cos y, 10xz). We are required to evaluate the line integral ∫cf ⋅ dr using the given information.To evaluate the line integral, we use the following formula:∫cf ⋅ dr = ∫abf(r(t)) ⋅ r'(t) dt.

Here, we can see that r(t) is already in vector form, so we don't need to convert it. We just need to find r'(t).Differentiating r(t) with respect to t, we get:r'(t) = (3t², 2t, -2)Substituting the given values of f and r'(t), we get:∫cf ⋅ dr = ∫₀¹ (-4sin t³, 5cos t², -20t³) ⋅ (3t², 2t, -2) dt= ∫₀¹ (-12t⁴ sin t³ + 10t cos t² - 20t⁴) dt= (-3t⁴ cos t³ + 5t³ sin t² - 5t⁵) from 0 to 1= -3 cos 1 + 5 sin 1 - 5The final answer is -3 cos 1 + 5 sin 1 - 5.

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Answer:

Step-by-step explanation:

negative 5 is less then -3 is the statement. so saying that -3 is less than five, is false.

remember your number line.

-5_-4_-3_-2_-1_0_1_2_3_4_5_6

five sure is to the left of three, and saying that three is to the right of five is the exact same thing.

Step-by-step explanation:

15 / (1/3)  is equal to  15 x 3/1  = 15 x 3 = 45

Answer:

92

Step-by-step explanation:

6 x 8 = 48  

48 + 136 = 184

184 / 2 = 92

125 = 5³, and the given expression reduces to

\(\left(\sqrt{125}\right)^{\frac13}\cdot\left(\sqrt[3]{125}\right)^{\frac12}=\left(125^{\frac12}\right)^{\frac13}\cdot\left(125^{\frac13}\right)^{\frac12}=125^{\frac16}\cdot125^{\frac16}=125^{\frac13}\)

so it has a value of 5.

Now:

• the first choice is equivalent, since 625 = 25², so

\(\dfrac{\sqrt[3]{625}}{5^{\frac13}}=\dfrac{25^{\frac23}}{5^{\frac13}}=\dfrac{5^{\frac43}}{5^{\frac13}}=5\)

• the second choice is not equivalent, since

\(5 \cdot 25^{\frac13} = 5 \cdot 5^{\frac23} = 5^{\frac43}\)

• the third choice is also equivalent, since

\(\dfrac{\left(\sqrt[4]{5}\right)^7}{125^{\frac14}}=\dfrac{5^{\frac74}}{5^{\frac34}}=5\)

• the fourth choice is also equivalent, since

\(\dfrac{5^{\frac12}\cdot25^{\frac13}}{\sqrt[6]{5}}=\dfrac{5^{\frac12}\cdot5^{\frac23}}{5^{\frac16}}=\dfrac{5^{\frac76}}{5^{\frac16}}=5\)

According to the information provided in the question, these three inequalities are accurate w>10 , w>11 , w<15 .

An inequality is a relation that compares two numbers or other mathematical expressions in an unequal way.

The most frequent application is to compare two numbers on a number line according to their sizes.

Diego's dog weights more than 10 kilograms but less than 15 kilograms, as stated in the question.

The actual disparities include

w>10

w>11

w<15

According to the information provided in the question, these three inequalities are accurate.

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