4.25-1.25x=0 what is x someone help please

Answer:

18 is correct. I cannot read 16.  The sum of the interior angles must be 180.  

16) The triangles are similar because the corresponding sides are proportional \(\frac{16}{8}\) = \(\frac{12}{6}\) = \(\frac{10}{5}\)

17) The triangles are not similar because the corresponding sides are not proportional \(\frac{20}{5}\)≠ \(\frac{18}{4}\) ≠ \(\frac{16}{3}\)

Step-by-step explanation:

Answer:

\(\frac{1}{4}\)

Step-by-step explanation:

The problem \(2x - 3x = 3\) is incorrect. The correct answer for that one is \(-x \:\sf{or\:-1\)

\(\sf{Simplify\: the\: expression.\)

\(\sf{\frac{16x}{64x} = \frac{1}{4}\)

\(x=\frac{1}{4}\)

Therefore, the answer is \(\frac{1}{4}\)

Answer:

Add the equations in order to solve for the first variable. Plug this value into the other equations in order to solve for the remaining variables.

Step-by-step explanation:

Weight of man and paint = 160 + 5 = 165 total pounds.

Gravitational force is independent of the path taken so we can ignore the radius of the silo.

Work done = total weight x height

The problem says he climbs to the top so overall height is 90 feet

Work = 165 lbs x 90 ft = 14,850 ft-lbs

Answer:

Nobody knows its a mistery :'D

Answer:

Because lma/os

Step-by-step explanation:

5 ( x + 20 )

-----------------

1. Simplifly

2. Distribute

3.  5 ( x + 20 )

     5 x + 100

The Expression x^2 - 6x + 9 when x = 2 + i   is -2i

To evaluate the expression x^2 - 6x + 9 when x = 2 + i, we substitute the value of x into the expression:

(2 + i)^2 - 6(2 + i) + 9

Simplifying the first term, we get:

(2 + i)^2 = 2^2 + 2(2)(i) + i^2 = 4 + 4i + i^2

Since i^2 = -1, we can substitute that in and simplify further:

(2 + i)^2 = 4 + 4i - 1 = 3 + 4i

Now we substitute this into the original expression:

(2 + i)^2 - 6(2 + i) + 9 = (3 + 4i) - 6(2 + i) + 9

Simplifying further, we get:

= 3 + 4i - 12 - 6i + 9

= 0 - 2i

= -2i

Therefore, the value of x^2 - 6x + 9 when x = 2 + i is -2i.

To know more about Expression .

https://brainly.com/question/1859113

#SPJ11

Answer:

\(sin\;60 =\frac{\sqrt{3} }{2}\)

Answer:

1.953125 is the answer I believe

or 125/64

or 1 61/64

Answer:

45/49

Step-by-step explanation:

The first step to dividing fractions is to find the reciprocal (reverse the numerator and denominator) of the second fraction. Next, multiply the two numerators. Then, multiply the two denominators. Finally, simplify the fractions if needed.

9/14 * 10/7 = 90/98

divide the numerator and the denominator by 2.

90 * 2 = 45

98 * 2 = 49

45/49

Answer:

After 4 years working for the company, he would make $79,000 of salary.

His salary after t years will be:

[te]S(t) = 69000 + 2500t\)

Step-by-step explanation:

David just accepted a job at a new company where he will make an annual salary of $69000. David was told that for each year he stays with the company, he will be given a salary raise of $2500.

This means that after t years, his salary will be given by:

[te]S(t) = 69000 + 2500t\)

How much would David make as a salary after 4 years working for the company?

[te]S(4) = 69000 + 2500*4 = 69000 + 10000 = 79000\)

After 4 years working for the company, he would make $79,000 of salary.

Answer:

me too (help)

Step-by-step explanation:

Answer:

2 2/12 1 5/12

2-1

1 2/12 - 5/12

7/12 bags of apples left

Step-by-step explanation:

Answer:

24 m²

Step-by-step explanation:

The area of a rhombus is the product of the two diagonals over 2

Given the following question:

3^2 = 3 * 3 = 9

(-3)^2 = -3 * -3 = 9

They are different because one is the multiplication of negative integers while the other isn't. Since a negative times a negative is a positive.

They are similar because they both have the same answers.

Step-by-step explanation: when we have a binomial multiplied by a trinomial, we need to distribute all the terms in the binomial through all the terms on the trinomial.

So distributing the x through the parentheses, we get

2x^3 - 3x^2 -2x

Now we distribute the-2 through the parentheses.

so we get -4x^2 + 6x + 4.

Now combine to get 2x^3 - 7x^2 + 4x + 4.

Answer:

-2

Step-by-step explanation:

Sol`n:

       A/C to the question,

 A certain number be x,

Then,

          8-7x=28+3

      or,8-28=3x+7x

      or,-20=10x

       or,-20/10=10x

       or,-2=x

       or, x=-2

    Therefore , The number is -2.

The function f such that f'(x) = x² - 9 and f(0) = 7 is given by, f(x) = x³/3 - 9x + 7.

Given that the differentiated function is,

f'(x) = x² - 9

We have to do integration the function in order to get the initial function that is f(x).

f(x) = ∫(x² - 9).dx = ∫x².dx - ∫9.dx = x³/3 - 9x + c, where c is an integration constant.

f(x) = x³/3 - 9x + c

Again it is given that f(0) = 7.

f(0) = 7

0³/3 - 9*0 + c = 7

c = 7

Hence the function is, f(x) = x³/3 - 9x + 7.

To know more about integration here

https://brainly.com/question/27419605

#SPJ1

With what?

Where is the picture

Answer:

b

Step-by-step explanation:

i just answered the same thing earlier

The product (a - b)(a + b) is called the special binomial product, when simplified it is called algebraic identity of two squares and, when simplified it is equivalent to a² - b²

An equivalent, simpler (typically shorter) mathematical expression is substituted for the original one through the process of simplification.

In propositional logic, simplification is a valid immediate inference, argument form, and inference rule that draws the conclusion that if the conjunction A + B is true, then A + B is true as well. By deriving one of the conjuncts of a conjunction on a line by itself, the rule enables the brevity of longer proofs.

Learn more about simplification

https://brainly.com/question/13742517

#SPJ9

The parameters that are needed to calculate a probability are listed as follows:

Then the probability is calculated as the division of the number of desired outcomes by the number of total outcomes, hence it is the same as a relative frequency.

The total number of periods is given as follows:

5 + 6 + 4 = 15.

The frequency of each class is given as follows:

Learn more about the concept of probability at https://brainly.com/question/24756209

#SPJ1

Answer:

The instantaneous rate of change is -6 words per day,

the number of words Alex remembers after 5 days, option (D).

What is the instantaneous rate of change ?

An instantaneous rate is the rate at some instant in time. An instantaneous rate is a differential rate: -d[reactant]/dt or d[product]/dt. We determine an instantaneous rate at time t: by calculating the negative of the slope of the curve of concentration of a reactant versus time at time t.

Have given,

Alex learned 80 new vocabulary words

and after t days he learned,

W(t) = \(80 (1-0.1t)^{3}\)

differentiate respect of t

W'(t) = \(80 \frac{d}{dt} (1-0.1t)^{3}\)

W'(t) = \(80 * 3(1-0.1t)^{2} \frac{d}{dt}(1-0.1t)\)

W'(t) = \(240(1-0.1*5)^{2} (0.1)\)

W'(t) = 6

That's mean , the instantaneous rate of change is -6 words per day.

To learn more about instantaneous rate visit : brainly.com/question/28837697

#SPJ4

Answer:

m∠1 = 100°

Step-by-step explanation:

The graph of the function is V-shaped, vertex domain and range are (-3,0), all the real values and [0, ∞);

The absolute value function, with vertex (h,k), is defined as follows:

y = |x - h| + k.

The features of the function are given as follows;

Vertex: (h,k).

Domain: All real values;

Range: [k, ∞).

Given;

g(x) = |× + 31|

Therefore, for the first item of the function is |x + 3|, since we just have to identify the features;

More can be learned about absolute value functions at; brainly.com/question/3381225

#SPJ1

Answer:

277.5

Step-by-step explanation:

Divide 185 by 2, and you get 92.5. Add that to 185 and you get 277.5

Answer:c, the answer is c

Step-by-step explanation:

Answer:

Step-by-step explanation:

X: -2, -1, 0, 1, 2,...

Y: -2, -1, 0, 1, 2,...

(y=x)

Answer:

The correct option is (D) one of the non-fiction books on the bottom shelf and a second non-fiction book from the bottom shelf.

Step-by-step explanation:

What is probability?

Probability is the branch of mathematics that deals with numerical descriptions of how probable an event is to occur or how likely it is that a claim is true.

To find which 2 books describe a pair of dependent events:

A pair of two dependent events are simply those in which the selection of the second item is contingent on the selection of the first item, causing the probability to change.

Because the sample size is lowered when the initial item is taken without replacement, choosing the exact same item reduces the chance.

Now, in regard to the question, this means that for two of the occurrences to be independent, they must be on the same shelf and of the same type of book, so that the second book cannot be selected until the first one is.

Option D, where both books are on the same shelf and are of the same type, is the only option that fulfills this requirement.

Therefore, the correct option is (D) one of the non-fiction books on the bottom shelf and a second non-fiction book from the bottom shelf.

Know more about probability here:

brainly.com/question/25870256

#SPJ4

Answer:

579

Step-by-step explanation:

3.5/100 × 600 = 21

600 - 21 = 579