needing help understanding how to solve these math problems

Step-by-step explanation:

171 km/h

travel distance = 855 km

855 / 171 = 5 hours

it took him 5 hours to fly the 855 km (theoretically to the hospital).

normally, with a plane, you can't land on or at a hospital. you would need a helicopter to be able to do that.

so, he could only fly to a nearby airport, and then travel from there to the hospital. but we have no information about that.

Answer: 25, 90 ,90

Step-by-step explanation:

One angle on a paralel = 155
=> x+ y + z + 155 = 360
  x + y + z = 205    ; x + y ; y + z ; x + z = 180

x + y = 180
=> Z = 205 - 180
    Z = 25  Degree
x = y = 90 degree

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Answer: Consider me the brainiest. The answer is... Decimal form =4.083

Exact form= 49/12

The mixed number form=4 1/12

How do we solve fractions step by step?

Conversion a mixed number 2  1/3 to a improper fraction: 2 1/3 = 2  1/3 = 2 3 + 1/3 = 6 + 1/3 = 7/3

To find a new numerator

A;   Multiply the whole number 2 by the denominator 3. Whole number 2 equally 2 * 3/3 = 6/3

b) Add the answer from the previous step 6 to the numerator 1. The new numerator is 6 + 1 = 7

c) Write a previous answer (new numerator 7) over the denominator 3.

Two and one-third are seven-thirds.

Conversion a mixed number 1  3/4 to a improper fraction: 1 3/4 = 1  3/4 = 1 · 4 + 3/4 = 4 + 3/4 = 7/4

To find a new numerator:

a) Multiply the whole number 1 by the denominator 4. Whole number 1 equally 1 * 4/4 = 4/4

b) Add the answer from the previous step 4 to the numerator 3. The new numerator is 4 + 3 = 7

c) Write a previous answer (new numerator 7) over the denominator 4. One and three quarters are seven quarters.

Add: 7/3 + 7/4 = 7 · 4/3 · 4 + 7 · 3/4 · 3 = 28/12 + 21/12 = 28 + 21/12 = 49/12 It

is suitable to adjust both fractions to a common (equal, identical) denominator for adding, subtracting, and comparing fractions.  The common denominator you can calculate as the least common multiple of both denominators - LCM(3, 4) = 12.  It is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 3 × 4 = 12. In the following intermediate step, it cannot further simplify the fraction result by cancelling.  In other words - seven thirds plus seven quarters is forty-nine twelfths.

Answer:

4749

Step-by-step explanation:

because it 36 and 45. it is right, and it is ok

ANSWER

The first equation has no solution

The second equation has infinitely many solutions

STEP-BY-STEP EXPLANATION:

From the question provided, you are given the following equations

3(y + 2) + y = 4(y - 1) + 9

5(u + 1) - u = 4(u - 1) + 9

To find the values of y and u, we need to solve the equations independently

Answer:

m=4

2y/2=y

8x/2=4x

4/2=2

so

y=4x+4

The ratio is  15+\(r_2\) : \(12+r_1\).

What is surface area?

A three-dimensional object's surface area is the space it takes up when viewed from the outside.

Here surface area of the cylinder = \(2\pi rh+2\pi r^2\) square unit

=> A = \(2\pi r(h+r)\) square unit.

Now Height = 12 in , radius = r1 then,

=> \(A_1 = 2\pi r_1(12+r_1)\) -----> 1

Now Height = 15 in , radius = r2 then,

=>\(A_2=2\pi r_2(15+r_2)\)-------> 2

Now the ratio of the surface area of the larger cylinder to the surface area of the smaller cylinder then,

=>\(2\pi r_2(15+r_2) : 2\pi r_1(12+r_1)\)

=>\(15+r_2:12+r_1\)

Hence the ratio is \(15+r_2:12+r_1\).

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Answer:

25:16

Step-by-step explanation:

I took the

Answer: The answer is $11.46 per pizza

Step-by-step explanation:

First subtract 3.50 from 37.88 since we know how much the garlic roles are. after that you should get 34.38. Then just divide 34.38 by 3, you'll then get the price for each pizza.

Answer:

proportional

Step-by-step explanation:

Answer:

Kylie's sauce  has a greater proportion of cheese.

Step-by-step explanation:

The cheese sauce which have a stronger cheese flavor is Kyle's cheese sauce

Cream = 9 oz

Cheese = 8 oz

Ratio of cheese to cream = 8 : 9

= 8/9

= 0.89

Cream = 12 oz

Cheese = 11 oz

Ratio of cheese to cream = 11 : 12

= 11/12

= 0.92

Therefore, the cheese sauce which have a stronger cheese flavor is Kyle's cheese sauce

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Answer:

>

Step-by-step explanation:

its because 56.72 is greater than 5.672

Answer:

56.72 > 5.672

Step-by-step explanation:

> means greater than

< means less than

so 56.72 is greater than (>) 5.672

The length of the rectangle is twice its width. If its perimeter is 7 1/3 cm, its length will be 22/9 cm, and the width is 11/9 cm.

Let's assume the width of the rectangle is "b" cm.

According to the given information, the length of the rectangle is twice its width, so the length would be "2b" cm.

The formula for the perimeter of a rectangle is given by:

Perimeter = 2 * (length + width)

Substituting the given perimeter value, we have:

7 1/3 cm = 2 * (2b + b)

To simplify the calculation, let's convert 7 1/3 to an improper fraction:

7 1/3 = (3*7 + 1)/3 = 22/3

Rewriting the equation:

22/3 = 2 * (3b)

Simplifying further:

22/3 = 6b

To solve for "b," we can divide both sides by 6:

b = (22/3) / 6 = 22/18 = 11/9 cm

Therefore, the width of the rectangle is 11/9 cm.

To find the length, we can substitute the width back into the equation:

Length = 2b = 2 * (11/9) = 22/9 cm

So, the length of the rectangle is 22/9 cm, and the width is 11/9 cm.

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answer :

z=11

y=13

will be ur answers

Answer:

3000

Step-by-step explanation:

The value of the expression in scientific notation is 1.2913 * 10^5

The expression is given as:

(1.28 × 105) + (1. 13 × 10³)

Rewrite properly as

(1.28 × 10^5) + (1. 13 × 10^3)

Express 10^3 as 10^-2 * 10^5

So, we have

(1.28 × 10^5) + (1. 13 × 10^3) = (1.28 × 10^5) + (1. 13 × 10^-2 * 10^5)

Factor out 10^5

So, we have:

(1.28 × 10^5) + (1. 13 × 10^3) = (1.28 + 1. 13 × 10^-2) * 10^5

This gives

(1.28 × 10^5) + (1. 13 × 10^3) = (1.28 + 0.0113) * 10^5

Evaluate the sum

(1.28 × 10^5) + (1. 13 × 10^3) = 1.2913 * 10^5

Hence, the value of the expression in scientific notation is 1.2913 * 10^5

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The scientific notation of (1.28 × 105) + (1. 13 × 10³) is  1.2913 × 10⁵

Scientific notation is a form of presenting very large numbers or very small numbers in a simpler form.

The proper format for scientific notation is a × 10ᵇ

where

Therefore, let's evaluate (1.28 × 10⁵) + (1. 13 × 10³)

(1.28 × 10⁵)  = 128000

(1. 13 × 10³)  = 1130

Hence,

(1.28 × 10⁵) + (1. 13 × 10³) = 128000 + 1130 = 129130

In scientific notation,

(1.28 × 10⁵) + (1. 13 × 10³) = 129130 = 1.2913 × 10⁵

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The solution set for the inequality is x < 2. Among the given options, the value that is included in the solution set is 0.

To determine which value is included in the solution set for the inequality statement -3(x-4) > 6(x-1), we need to solve the inequality for x.

Starting with the given inequality:

-3(x - 4) > 6(x - 1)

First, distribute -3 and 6 to the terms inside the parentheses:

-3x + 12 > 6x - 6

Next, combine like terms by subtracting 6x from both sides and adding 6 to both sides:

-3x - 6x > -6 - 12

-9x > -18

To isolate x, divide both sides of the inequality by -9. Remember that when dividing by a negative number, we need to reverse the inequality sign:

x < (-18) / (-9)

x < 2

Therefore, the solution set for the inequality is x < 2. Among the given options, the value that is included in the solution set is 0.

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To achieve a comparable rate of return, Hank would need to earn an interest rate of approximately 0.86% per month, compounded monthly on his ordinary annuity.

To find the interest rate, compounded monthly, that Hank would need to earn on an ordinary annuity for a comparable rate of return, we can use the present value formula for an ordinary annuity.

First, let's calculate the present value of Hank's payments. He made payments of $219 per month for 30 years, so the total payments amount to $219 * 12 * 30 = $78840.

Now, we need to find the interest rate that would make this present value equal to the selling price of the property, which is $195,258.

Using the formula for the present value of an ordinary annuity, we have:

PV = P * (1 - (1+r)\(^{(-n)})\)/r,
where PV is the present value, P is the payment per period, r is the interest rate per period, and n is the number of periods.

Plugging in the values we have, we get:
$78840 = $219 * (1 - (1+r)\({(-360)}\))/r.

Solving this equation for r, we find that Hank would need to earn an interest rate of approximately 0.86% per month, compounded monthly, in order to have a comparable rate of return.

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Answer:

A. 36, -36

Step-by-step explanation:

y = x^2 - 12x - 5

steps to complete the square

add a 5 to both sides to move the constant

x^2 - 12x = 5

Then take -12, the coefficient of the variable and divide by 2 and square.

12/2 = 6, 6^2 = 36

Then add 36 to both sides.

x^2 - 12x + 36 = 5 + 36

Then subtract the 5 and 36 from both sides.

x^2 - 12x + 36 - 36 - 5

Answer:

\(x=8, y=3\)

Step-by-step explanation:

Recall that if a matrix multiplication of two matrices is defined, then the number of columns of the first matrix is equivalent to the number of rows of the second matrix.

Since matrix M has (11-x) columns and matrix N has y rows, and MN is defined, so it follows:

\(y=11-x----(1)\)

Since matrix N has (y+5) columns and matrix M has x rows, and NM is defined, so it follows:

\(y+5=x----(2)\)

Substitute (1) into (2):

\(11-x+5=x\\2x=16\\\therefore x=8--(3)\)

Substitute (3) into (1):

\(y=11-8=3\)

Answer:

\(\sin O \approx 0.919\), \(\sec O \approx -2.539\) and \(\tan O = -\frac{7}{3}\).

Step-by-step explanation:

Given a point (x, y) with respect to origin and in rectangular coordinates, the exact value of sine, secant and tangent functions are, respectively:

\(\sin O = \frac{y}{\sqrt{x^{2}+y^{2}}}\)

\(\sec O = \frac{1}{\cos O} = \frac{\sqrt{x^{2}+y^{2}}}{x}\)

\(\tan O = \frac{\sin O}{\cos O} = \frac{y}{x}\)

Given that \(x = -3\) and \(y = 7\), the exact values of sine, secant and tangent are:

\(\sin O = \frac{7}{\sqrt{(-3)^{2}+7^{2}}}\)

\(\sin O \approx 0.919\)

\(\sec O = \frac{\sqrt{(-3)^{2}+7^{2}}}{-3}\)

\(\sec O \approx -2.539\)

\(\tan O = \frac{7}{-3}\)

\(\tan O = -\frac{7}{3}\)

This is the Answer

I hope it's helps

Answer:

-25a - 2b^8 - 4b

Step-by-step explanation:

-10a - 4b - 15a - 2b^8

combine like terms,

-10a - 15a = -25a

Answer:

see the attachment

a) The highest common factor and the least common multiple are 12 and 48, respectively.

b) The highest common factor and the least common multiple are 12 and 72, respectively.

c) The highest common factor and the least common multiple are 8 and 160, respectively.

d) The highest common factor and the least common multiple are 12 and 48, respectively.

e) The highest common factor and the least common multiple are 14 and 840, respectively.

In this question we must determine the highest common factor and the least common multiple of two integers.

The highest common factor consists in the maximum product of common prime numbers, of the two numbers that divides it, and the least common multiple consists in the product of prime numbers, common and not, of the two numbers, that creates a product that it is greater or equal to the greater integer.

Now, we proceed to determine the numbers for each case:

First, we factorize each integer:

\(12 = 2^{2}\times 3\), \(48 = 2^{4}\times 3\)

Then the highest common factor and the least common multiple are, respectively:

\(LCM = 2^{4}\times 3 = 48\), \(HCF = 2^{2}\times 3 = 12\)

The highest common factor and the least common multiple are 12 and 48, respectively. \(\blacksquare\)

First, we factorize each integer:

\(24 = 2^{3}\times 3\), \(36 = 2^{2}\times 3^{2}\)

Then, the highest common factor and the least common multiple are, respectively:

\(LCM = 2^{3}\times 3^{2} = 72\), \(HCF = 2^{2}\times 3 = 12\)

The highest common factor and the least common multiple are 12 and 72, respectively. \(\blacksquare\)

First, we factorize each integer:

\(32 = 2^{5}\), \(40 = 2^{3}\times 5\)

Then, the highest common factor and the least common multiple are, respectively:

\(LCM = 2^{5}\times 5 = 160\), \(HCF = 2^{3} = 8\)

The highest common factor and the least common multiple are 8 and 160, respectively. \(\blacksquare\)

First, we factorize each integer:

\(24 = 2^{3}\times 3\), \(48 = 2^{4}\times 3\), \(60 = 2^{2}\times 3 \times 5\)

Then, the highest common factor and the least common multiple are, respectively:

\(LCM = 2^{4}\times 3 \times 5 = 48\), \(HCF = 2^{2}\times 3 = 12\)

The highest common factor and the least common multiple are 12 and 48, respectively. \(\blacksquare\)

First, we factorize each integer:

\(42 = 2\times 3 \times 7\), \(56 = 2^{3}\times 7\), \(70 = 2\times 5\times 7\)

Then, the highest common factor and the least common multiple are, respectively:

\(LCM = 2^{3} \times 3 \times 5 \times 7 = 840\), \(HCF = 2\times 7 = 14\)

The highest common factor and the least common multiple are 14 and 840, respectively. \(\blacksquare\)

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In every 10 minutes an average of 3 customers will arrive to the pizza station

Given,

The number of customers arriving to the pizza station follows a poisson distribution with a rate of 18 customers per hour.

We have to find the average number of customers arrives in each 10 minutes.

Here,

The chance that X represents the number of successes of a random variable in a Poisson distribution is provided by the following formula:

P (X = x) = (e^-μ × μ^x) / x!

Where,

The number of successes is x.

The Euler number is e = 2.71828.

μ is the average over the specified range.

Now,

Rate of 18 customers per hour;

μ = 18 n

n is the number of hours.

Number of customers arrive in each 10 minutes

10 minutes = 10/60 = 1/6

Then,

μ = 18 x 1/6 = 3

That is,

In every 10 minutes an average of 3 customers will arrive to the pizza station.

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An orthonormal set is a set of orthogonal unit vectors.

Normalization is the process of making unit vectors.

A set of vectors in which each vector is orthogonal to every other vector in the set is called an orthogonal set of vectors.

Two vectors are orthogonal when their dot product equals zero.

An orthonormal set is one in which each vector has length 1 and is orthogonal.

The process of creating a vector of length 1 in the same direction of the original vector is called "normalization".

An orthonormal set of vectors that is a basis of a vector space is quite useful. We can use the Gram-Schmidt process to transform a basis of a vector space (which may not be orthogonal) into an orthonormal basis.

To normalize vectors to produce an orthonormal set of vectors, we calculate the length of the vector and divide the vector by its length, to obtain a unit vector.

Since the question asked about "how to normalize vectors to produce an orthonormal set" that implies that the vectors already form an orthogonal set.

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The given question is incomplete,

So , I take another question, The question is:

How to normalize vectors to produce an orthonormal set?

Answer:

Too many :(

Step-by-step explanation:

Its life u know

can i pls have brainliest

Answer:

that number is probably too high to count, don't ya think

Answer:

Step-by-step explanation:

208

The value of c in the domain of f(x) depends on the specific function f(x) and its domain.

In order to determine which value of c is in the domain of f(x), we need to know the function f(x) and its domain. A domain is the set of all possible input values of a function.

If a value of c is in the domain of f(x), then we can plug it into the function and get a valid output.

In general, a function f(x) can have a restricted domain due to certain conditions or limitations. For example, a square root function cannot have negative values under the radical because that would result in an imaginary number.

Thus, the domain of a square root function is restricted to non-negative values.

In order to find the domain of a function, we need to consider any restrictions on the input values. For example, if we have the function f(x) = 1/x, we cannot plug in x = 0 because that would result in division by zero, which is undefined.

Therefore, the domain of f(x) is all real numbers except 0. We can write this as D(f) = {x : x ≠ 0}.Once we know the domain of f(x), we can check which value of c is in the domain by seeing if it satisfies the condition.

For example, if the domain of f(x) is D(f) = {x : x > 2}, then c = 3 is in the domain because 3 is greater than 2. On the other hand, c = 1 is not in the domain because 1 is less than 2.

Therefore, the value of c in the domain of f(x) depends on the specific function f(x) and its domain.

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Answer:

45

Step-by-step explanation:

what do you mean.. is this some other things not about math?