Help I don’t understand and I need this
Done as soon as possible

Answer:

yass

Step-by-step explanation: 5+1 = 6 <3 i need points-

Alice paid $25 for her pair of jeans, and Jeff paid $4 for the steaks.

Let's calculate the final amount paid by Alice and Jeff for their purchases.

Alice:

Jeff:

So, Alice paid $25 for her pair of jeans, and Jeff paid $4 for the steaks.

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Answer:

Step-by-step explanation:

17x > -17

x > -1

Answer:

Step-by-step explanation:

a. (I) x = 65

(ii) vertically opposite angles are equal.

b. (i) 71 degrees

(ii) alternate interior angles are equal

c. (i) z = 180 - 71 = 109 degrees

(ii) angles on a line add up to 180 degrees

Answer:

x = 65°, y = 71°, z = 44°

Step-by-step explanation:

x and 65 are vertical angles and congruent, thus

x = 65°

y and 71 are alternate angles and congruent, thus

y = 71°

The sum of the 3 angles in a triangle = 180°, thus

z = 180° - (65 + 71)° = 180° - 136° = 44°

Hence

x = 65°, y = 71° and z = 44°

Answer:

that would equal 2 I hope this helps you

Answer:

x = 0 , x = 3

Step-by-step explanation:

Equate the 2 expressions and solve for x

3x² - 2x + 1 = 7x + 1 ( subtract 7x + 1 from both sides )

3x² - 9x = 0 ← factor out 3x from each term

3x(x - 3) = 0

Equate each factor to zero and solve for x

3x = 0 ⇒ x = 0

x - 3 = 0 ⇒ x = 3

Answer:

you would need to find the price before tax of the game. (B)

Answer:

V= video game $

.50V=.75

Now divide,

.75 divided by .05=15= V

So the video game wquals $15.

Now Check your answer

15 times (x) .05= .75

There you go :)

Step-by-step explanation:

The required probability of the son with normal vision is 0.50 and for the normal  blood clotting is 0.

Parent phenotype                                         Carrier woman

Affected man (Hemophilic)                           (colorblindness)

Parents X^h Y                                                    XX^C

Gametes X^h, Y X, X^C

Progeny                      X X^h       X^C X^h        X^C Y,       XY

Total outcome = 100

Favourable outcomes for a son with normal vision is= 50

Probability of a son with normal vision = 50/100

                                                                = 0.50

probability of a son with normal blood clotting = 0 / 100

                                                                             = 0

Therefore, the probability of the son with normal vision and normal blood clotting is 0.50 and 0 respectively.

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Step-by-step explanation:

(x + 8) / (5x - 1) > 0

Multiply both sides by (5x - 1)², which is always positive for all real values of x in the domain.

(x ≠ 1/5)

=> (x + 8)(5x - 1) > 0

=> x < -8 or x > 1/5.

The answer is the 2nd option.

The number of feet of fabric will the individual need to make 11 blankets is 79.2 feet

To find out how many feet of fabric the individual will need to make 11 blankets, we can use the unitary method.

We know that the individual used 7.2 feet of fabric to make one blanket. So, to find out how much fabric is needed to make 11 blankets, we can set up a proportion

7.2 feet of fabric is needed for 1 blanket

x feet of fabric is needed for 11 blankets

We can solve for x by cross-multiplying and then dividing

7.2 × 11 = x

x = 79.2 feet

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Answer:

C.

Step-by-step explanation:

c is the only one that even makes sense

C. Distribute 6 to eliminate the parentheses.

To solve an equation we follow BODMAS rule which stands for first solving which are inside brackets then we divide terms to each other if division is given.Then we multiply terms if multiplication is given.Next step we add terms if given.In last we do subtraction if it is in the given expression.If any of these operations are not given we just skip and do the next operation according to the BODMAS rule.

According to the given question

Charlotte wants to solve the equation 6(2x+1) – 3 = 4x – 5.

6( 2x + 1 ) - 3 = 4x - 5

12x + 6 - 3 = 4x - 5

12x + 3 = 4x - 5

12x - 4x = - 5 - 3

8x = - 8

 x = -8/8

 x = -1

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\(cos^2(x) = cos^2(x)\).

This equation is true for all values of x, so the solution is:
x ∈ ℝ (x is any real number).

To solve the equation\(cos^2(x)\)= (power reducing formula),

we need to replace \(cos^2(x)\) with the power reducing formula.

The power reducing formula for \(cos^2(x)\) is:
\(cos^2(x) = (1 + cos(2x)) / 2\)
Now, let's solve the equation:
\((1 + cos(2x)) / 2 = cos^2(x)\)
We want to find x when this equation is true.

Since the left side is the power reducing formula for \(cos^2(x)\),

we can simply write:
\(cos^2(x) = cos^2(x)\).

The power reducing formula is a trigonometric identity that allows you to express a trigonometric function of a higher power in terms of a trigonometric function of a lower power.

It is most commonly used for reducing the power of the sine and cosine functions.

The power reducing formula for cosine is:

\(cos^2(x) = (1 + cos(2x))/2\)

The power reducing formula for sine is:

\(sin^2(x) = (1 - cos(2x))/2\)

These formulas can be derived using the Pythagorean identity, which states that \(sin^2(x) + cos^2(x) = 1.\)

By solving for either \(sin^2(x) or cos^2(x)\) in terms of the other, and then using the double angle formula for cosine \((cos(2x) = cos^2(x) - sin^2(x)),\)we can arrive at the power reducing formulas.

The power reducing formulas can be used to simplify trigonometric expressions and make them easier to work with.

For example, if you have an expression such as \(sin^4(x)\), you can use the power reducing formula for sine to express \(sin^4(x)\) in terms of \(sin^2(x),\)and then use the power reducing formula for cosine to express \(sin^2(x)\)in terms of cos(2x).

This can make the expression simpler and easier to integrate or differentiate.

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The probability that the number of successes x is exactly 2 is 0.3241.

To find the probability that the number of successes x is exactly 2 using the binomial formula, we use the formula:

P(x = k) = (n choose k) * p^k * (1-p)^(n-k)

where n is the number of trials, p is the probability of success, and k is the number of successes.

Substituting n=8, p=0.30, and k=2 into the formula, we get:

P(x = 2) = (8 choose 2) * 0.30^2 * (1-0.30)^(8-2)

= 28 * 0.09 * 0.4783

= 0.3241

Therefore, the probability that the number of successes x is exactly 2 is 0.3241.

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Answer:

x^2 - x

=

x(x-1)

Step-by-step explanation:

The options provided in the question do not include a negative sign, so the closest answer is 10 km/h south, which is option (d).

In question 1, the plane X = 2 is parallel to the yz-plane. In question 3, the expression 2 * 3k simplifies to 6k. In question 4, the velocity of Car A relative to Car B is 110 km/h north.

1. The equation X = 2 represents a plane that is parallel to the yz-plane. This is because the equation only involves the x-coordinate, meaning that the value of x is fixed at 2 while the y and z coordinates can vary freely.

3. Given the unit vectors i, j, and k, the expression 2 * 3k simplifies to 6k. Since k is a unit vector representing the direction along the z-axis, multiplying it by 3 scales its magnitude by 3, resulting in a vector 6 times the magnitude of k but with the same direction.

4. When Car A is traveling north at 50 km/h and Car B is traveling south at 60 km/h, the velocity of Car A relative to Car B is determined by subtracting the velocity of Car B from the velocity of Car A. Since the velocities are in opposite directions, we subtract the magnitudes, resulting in 50 km/h - 60 km/h = -10 km/h.

The negative sign indicates that the velocity is in the opposite direction to Car B's motion, so the velocity of Car A relative to Car B is 10 km/h south. However, the options provided in the question do not include a negative sign, so the closest answer is 10 km/h south, which is option (d).

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Answer:

Step-by-step explanation:

Let the initial money deposited in the account be x:

If he added $54 to the amount he started with in his account, the expression will become:

x+54

If the sum is tripled, we will have:

3(x+54)

Since the balance an-mount is $381, the final equation will give:

3(x+54) = 381

The equation that represents the situation is 3(x+54) = 381

Next is to calculate x:

3(x+54) = 381

open the parenthesis

3x+162 = 381

3x = 381 - 162

3x = 219

x = 219/3

x = 73

Hence the original amount in his account is $73

22 + 22 x r = 30

22 x r = 30 - 22

r = 8 : 22

r = +36,36%

r = increase rate

Answer:

Un modelo matemático es una representación simplificada, a través de ecuaciones, funciones o fórmulas matemáticas

Step-by-step explanation:

Answer:

Simplified expression: \(\frac{ -20m - 26}{(2m+1)(2m-5)(2m+5)}\)

Restrictions: \(m \neq -0.5, m \neq 2.5, m \neq -2.5\)

Step-by-step explanation:

The expression is:

\(\frac{2m-1}{4m^2-25} - \frac{2m+5}{4m^2-8m-5}\)

We can simplify the denominator of the first fraction:

\(\frac{2m-1}{(2m+5)(2m-5)} - \frac{2m+5}{4m^2-8m-5}\)

Then we can simplify the denominator of the second fraction:

\(\frac{2m-1}{(2m+5)(2m-5)} - \frac{2m+5}{(2m+1)(2m-5)}\)

The least common multiple of the denominators is \((2m+1)(2m-5)(2m+5)\), therefore we have:

\(\frac{(2m-1)(2m+1)}{(2m+1)(2m-5)(2m+5)} - \frac{(2m+5)^2}{(2m+1)(2m-5)(2m+5)}\)

\(\frac{4m^2-1}{(2m+1)(2m-5)(2m+5)} - \frac{4m^2+20m+25}{(2m+1)(2m-5)(2m+5)}\)

\(\frac{4m^2-1 - 4m^2 - 20m - 25}{(2m+1)(2m-5)(2m+5)}\)

\(\frac{ -20m - 26}{(2m+1)(2m-5)(2m+5)}\)

The simplified expression is:

\(\frac{ -20m - 26}{(2m+1)(2m-5)(2m+5)}\)

The restrictions are the values of m that makes the denominator zero, so we calculate them using a 'not equal' sign:

\((2m+1) \neq 0 \rightarrow m \neq -0.5\)

\((2m-5) \neq 0 \rightarrow m \neq 2.5\)

\((2m+5) \neq 0 \rightarrow m \neq -2.5\)

The degree measure of the largest angle is 72° in the triangle.

We have, The sum of two angles of a triangle is 6/5 of a right angle.

One of these two angles is 30° larger than the other.

Let A and B be the two angles of the triangle such that A = B + 30°.

We know that the sum of three angles in a triangle is 180°.

⇒ A + B + C = 180°

⇒ B + 30° + B + C = 180°

⇒ 2B + C = 150°

We also know that the sum of two angles of a triangle is 6/5 of a right angle.

⇒ A + B = 6/5 × 90°

⇒ B + 30° + B = 108°

⇒ 2B = 78°

⇒ B = 39°

C = 150° - 2B ⇒ 72°

A = B + 30° ⇒ 39° + 30° ⇒ 69°

Therefore, the degree measure of the largest angle in the triangle is 72°.

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There are approximately 8.36 × \(10^25\) water molecules in 2.5 million liters of water.

To find the number of moles of water in 2.5 million liters, we need to convert the volume to grams and then to moles using the given density and molecular mass.

Given:

Volume of water = 2.5 million liters

Density of water = 1 g/mL

Molecular mass of water = 18 g/mol

First, let's convert the volume from liters to grams using the density of water:

2.5 million liters * 1 g/mL = 2.5 million grams

Next, we can convert grams to moles using the molecular mass of water:

2.5 million grams / 18 g/mol ≈ 138,889 moles

Therefore, there are approximately 138,889 moles of water in 2.5 million liters.

To find the number of water molecules, we can use Avogadro's number, which states that there are approximately 6.022 × \(10^23\) molecules in one mole of a substance.

Number of water molecules = Number of moles * Avogadro's number

Number of water molecules ≈ 138,889 moles * 6.022 × 10^23 molecules/mole

Calculating this, we get:

Number of water molecules ≈ 8.36 ×\(10^25\) molecules

Therefore, there are approximately 8.36 × \(10^25\)water molecules in 2.5 million liters of water.

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An Olympic-sized swimming pool holds 2.5 million liters of water. How many moles of water is this? How many water molecules? Some potentially useful facts: 2.5 million = 2.5×\(10^6\).

The density of water is 1 g/mL. The molecular mass of water is 18 g/mol.

Answer:

The Answer is 29cm

Step-by-step explanation:

The area of this shape is made from two shapes.

Shape one is a rectangle with the dimensions 2cm by 4cm

2x4 = 8

So the area of rectangle 1 is 8

The other rectangle has the dimensions 4cm by 7cm

Because you have to account for the other triangle not being there (solved)

4x7 = 21

21+8

29cm

Answer:

total Change mean how much you change it. For example, If you have 2 dollor you give your mom 1 dollor, then what is your total Change now? 2-1=1 your total Change would be 1

Hope this helps.

The required white effective interest rate is 0.71% more than his nominal interest rate.

Compound interest is the interest on deposits computed on both the initial principal and the interest earned over time.

Here,

White Effective interest R,
\(R=(1+i/m)^m)-1\\R=(1+0.1362/4)^4)-1\\R =0.1433*100=\)
R = 14.33 percent

So

Difference in interest = 14.33%-13.62%
                                    =0.71%

Thus, the required white effective interest rate is 0.71% more than his nominal interest rate.

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A spool of thread measuring 8 3/4 inches long and 4 inches wide can be cut into 2 1/7 inch pieces.

In light of the conditions stated, come up with: \($\frac{8 \frac{3}{4}}{2 \frac{1}{7}}$\) To improper fractions, change the mixed numbers to: \($\frac{\frac{35}{4}}{\frac{15}{7}}$\) Multiply the reciprocal of a fraction to get its division: \($\frac{35}{4} \times \frac{7}{15}$\)

Mark this common element as a no-go: Multiplying \($\frac{7}{4} \times \frac{7}{3}$\) Mark the common element as absent: Multiplying \($\frac{7 \times 7}{4 \times 3}$\) . Put the following in one fraction : \($\frac{49}{12}$\) . The product or quotient should be

calculated.Find the biggest number that is greater than \($\frac{49}{12}$\) and less than or equal to it . A spool of thread measuring 8 3/4 inches long and 4 inches wide can be cut into 2 1/7 inch pieces.Otherwise, you or a device will need to count 127 turns (the irreducible repeat, independent of thread pitch), after which the half nut must be closed.

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Therefore, the accumulated present value of an investment is $53,333.33.

Given,

Money flow of $3200 per year.

Interest rate of 6%Compounded continuously.

To find,

The accumulated present value formula to calculate the accumulated present value of an investment in continuous compounding is given by;

A = (C / r)

Where, A = Accumulated present value of an investment

C = Continuous payment

R= Continuous interest rate

Substitute the given values in the above formula;

A = (3200 / 0.06)

= 53333.33

Therefore, the accumulated present value of an investment is $53,333.33.

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Answer:

\(y=x\)

Step-by-step explanation:

Hi there!

What we need to know:

1) Determine the slope (m)

\(y=mx+b\)

We're given that the slope of the line is 1. Plug this into the above equation

\(y=1x+b\\y=x+b\)

2) Determine the y-intercept (b)

\(y=x+b\)

Plug in the given point (-7,-7)

\(-7=-7+b\)

Add 7 to both sides to isolate b

\(-7+7=-7+b+7\\0=b\)

Therefore, the y-intercept is 0. Plug this back into \(y=x+b\)

\(y=x+0\\y=x\)

I hope this helps!