Mathematics College

-3x-4=-13 solve inequality plz show work!

Answers

Answer 1
Hello Again!

What you want to do first is add 4 to -4 and to -13. After doing so, you'll equation will look a little something like this...

-3x=9

You'll then want to divide both -3 and 9 by -3. After doing so, the equation will look like this...

x=-3

Your answer is x=-3

I hope this helps


Answer 2
Hey there! :) 

-3x - 4 = -13

We're essentially just trying to isolate x. So, we need to get x onto its own side of the equal sign! We can do this by adding 4 to both sides.

-3x = -13 + 4

Simplify.

-3x = -9

Divide both sides by -3.

x = 3

~Hope I helped!~

Related Questions

Evaluate the expression
4^2+6⋅5^2−3^3÷3^2.

Answers

[tex]4^2 + 6 \times 5^2- 3^3 \div 3^2.[/tex]

Evaluate exponents:
[tex]=16 + 6 \times 25- 27 \div 9[/tex]

Evaluate multiplication and division:
[tex]= 16 + 150- 3[/tex]

Evaluate addition and subtraction:
[tex]= 163[/tex]

Amy had $26 dollars to spend on school supplies. After buying 10 pens, she had $14.30 left. How much did each pen cost including tax?

Answers

11.70 is what wouldve been spent without adding tax, if you add tax you wouldve spent around $12-$12.50

Here, we need to find the cost of each pen, including tax. Since, information about tax was not given, so we will not consider this.

Total money Amy had = $ 26.

She is left with $ 14.30. The money she spent will be -

Total money - Money left = Money spent

$ 26 - $ 14.30 = $ 11.70

Total money she spent on 10 pens = $ 11.70

So, money spent on = $ 11.70 ÷ 10 = $ 1.17

So, the cost of each pen will be = $ 1.17

Q # 9 Find the circumference

Answers

Circumfernce: C=2*Pi*r
Pi=3.14
Radius of the circumference: r=3 m
C=2*3.14*(3 m)
C=18.84 m

Answer: First option 18.84 m


Identify the problem with the following study.

It was found that a third of all people in the United States live in urban centers. This finding is based on a study involving 3 randomly selected individuals.


reported results


small sample


missing data


loaded question

Answers

If the question is, why is this study faulty? Then you can answer it.
We know nothing about what was asked. (How could it be much more than "Where do you live?" The last one is wrong.

Is there missing data? We don't know. So the second last one is not the best answer.

The sample is too small. So far that's your best answer.

The results cannot be at fault. How can saying 2/3 of the people answered that they lived in the country. 

B <<<<<< second one down <<<<< Answer


if a certain type of bacteria quadruples every 15 minutes, how many bacteria will be presents after 90 minutes if the initial population was 5 bacteria?



HELP ME FOR 97 POINTS !!!!

Answers

For this case we have an equation of the form:
 y = A (b) ^ (t / n)
 Where,
 A: initial amount
 b: growth rate
 t: time
 n: number of time periods
 Substituting values we have:
 y = 5 * (4) ^ (90/15)
 y = 20480
 Answer:
 will be presents after 90 minutes about:
 y = 20480 bacteria

A ________ is a numerical quantity computed from the data of a sample and is used in reaching a decision on whether or not to reject the null hypothesis.
a. significance level
b. critical value
c. test statistic
d. parameter

Answers

The answer for the completion exercise shown above is the second option (option b), which is:

 b. critical value.

 Therefore, you have that the text is: "A critical value is a numerical quantity computed from the data of a sample..."

 This numeral quantity is used in statitics. Then, if the absolute value is greater that the quantity defined before, the null hypothesis must be rejected.

Experts/ace/geniuses helppp asapp

Answers

Point E is the correct answer! :D
[tex] \sqrt{10}=3.1622... [/tex]
therefore if you round the 3.1622... it would be closer to 3.2 so point F is actually correct 

HOW CAN YOU WRITE THE EQUATION OF A LINE THAT IS PARALLEL AND/OR PERPENDICULAR TO ANOTHER LINE USING A POINT ON THAT LINE.?

Answers

The point-slope equation of a line is useful for this purpose. It is often seen in the form
  y -k = m(x -h)
for a line of slope m through the point (h, k).

You can add k to this equation to put it in a form more like slope-intercept form:
  y = m(x -h) +k

Either of these can be used to write the equation of a parallel or perpendicular line through the point (h, k). The slope "m" of a parallel line will match that of the given line.

The slope "m" of a perpendicular line will be the negative reciprocal of the slope of the given line. That is, if you are given a line with slope "s", the slope of the perpendicular line will be m = -1/s.

If w = <3.5, -6> and z = <-1.5, -4>, what is the resulting vector for 2w − z?

Answers

We have the following vectors:
 w = <3.5, -6>
 z = <-1.5, -4>
 We want to find:
 2w - z
 Substituting we have:
 2w - z = 2 (<3.5, -6>) - (<-1.5, -4>)
 Rewriting we have:
 <7, -12> + <1.5, 4>
 Adding component to component:
 <(7 + 1.5), (-12 + 4)>
 <8.5, -8>
 Answer:
 The resulting vector is:
 <8.5, -8>

Answer:

C. <8.5, -8>

Step-by-step explanation:

for PLATO users

PLEASE HELP ME OUT ON THIS CRITICAL HARD QUESTION!!!!!!!! NEEDS THINKING!!!! MARK THE BRAINIEST​

Answers

You are getting into stats and I have to warn you that the condition of my stats knowledge is almost as limited as what I know about Biology which is practically nothing.  But let's see if we can do something about this.

The first thing you have to do is make sure that the sales reps face the same conditions. Geography is going to matter. Start with the simple stuff. Does it matter whether or not the sales representatives were in the city of the country? If in the country, do the people have money enough to buy what is being sold? If in the city, what is the employment situation like? Make sure that you are comparing Apples and Apples.

What about crops? Do they matter? What about livestock does it matter? What do these rural areas need? Is he selling what they need? It's going to be harder to sell something in Detroit or Flint than it is San Francisco?

Did people experience a devastating winter? Especially in the Northeast? If they did, their heating bills are going through the roof. Literally. More money on heating less on whatever he's selling.  

In short he has to consider conditions. Perhaps training will make no difference. There's other things that people have to live through. Maybe this was just a bad year. (It certainly was where I live. We got nothing but snow into mid April and East winds which are strong, cold, miserable and very nasty.) 

Credit scores. I'd be well aware of any credit stats that I can obtain. What are people doing with their credit cards. You may be able to sell the stuff on credit, but will you ever receive payment that you can rely on or are these people one step away from bankruptcy? Is it different in the rural areas than in the cities? I can tell you I would hate to have it known that I disregard my credit cards in the town I live in (700 people).  It would be cash only for everything.

Single or married? What's the demographics of the areas he's trying to sell in. We're retired. We don't take well to door to door sales people. Retired people have very little money to throw away on things we don't need. People on 3000 a month live very differently from those on 10000 a month. 

Finally what's the competition like? Sears going under is a huge warning. Where do people get the products you are selling? This is especially important in rural areas. We have made over 170 mail purchases (we won't do that any more -- postage rates are just prohibitive).

If he has a sales force of 1000 people in 2 regions, he should think about moving some of them to other regions. Don't use this point.

Many of the things I've pointed out require a study before the the training is administered. You have to separate out what mitigates the efforts of the sales force and what they have little or no control over. 

20 points math pls help brainliest.
Which table matches the function shown in the graph?
Which table matches the function shown in the graph?

Answers

the first one I believe is the first choice and the second one I believe is the last choice.

Not 100% on both hope it helps though

number 1 is a

number 2 d


Consider a box with a square base that has a volume of 64 cubic inches and a height of 4 inches. What is the volume of a similar box whose square base has an area of 4 square inches?

Answers

We know that the square base of the new box is 4 sq. in. This means that each side has to equal 2 in., because A = l*w and 4 = 2x2; we also know that since it is a square, both sides have to be equal, so it must be a 2x2 square and not a 4x1 rectangle.

That being said, the first box had dimensions of 4x4x4 - and this is confirmed by the volume being 64 sq. in. and the height being told to us as 4 in. as well as the square base having to have equal sides.

Because of this, since the question states "similar," all of the dimensions have to be reduced by the same factor. Since the square base was reduced by 1/2, we can assume the height is also reduced by 1/2, thus giving us a height of the new box as 2 in.

So, the volume of the new box is 2x2x2, which equals 8 sq. in.

A map has the scale 2 centimeters = 1 kilometer. on a map, the area of a forest preserve is 3.8 square centimeters. what is the area of the actual forest preserve

Answers

we know that
the scale is 2 cm/1 km
on a map, the area of a forest preserve is 3.8 cm²
assuming it has a square shape
the length side of the square is √3.8 cm
so
if 2 cm on a map-----------------> is a 1 km in the actual
 √3.8 cm------------------------> x
x=√3.8/2 km

the area of the actual forest preserve is
(√3.8/2)*(√3.8/2)----> 3.8/4---> 0.95 km²

the answer is
0.95 km²
Final answer:

To find the actual area of the forest preserve, the map area of 3.8 cm² is multiplied by the scale ratio squared (0.25 km²/cm²), resulting in an actual area of 0.95 km².

Explanation:

The area of the actual forest preserve can be calculated by using the scale given, which is 2 centimeters = 1 kilometer. First, we need to convert the area on the map into the actual area using this scale. Since the scale is linear and the area is measured in square units, we need to square the scale ratio to convert the area on the map to the actual area.

To do this conversion we consider that the scale of 2 cm : 1 km means that every 1 cm on the map is equivalent to 0.5 km (since 2 cm is 1 km). Therefore, for the area, we get the following ratio: (1 cm² = 0.5 km) × (1 cm² = 0.5 km), which simplifies to 1 cm² = 0.25 km². Now, we can find the actual area of the forest preserve by multiplying the 3.8 cm² area on the map by the value of each square centimeter in real-life units, which is 0.25 km².

Actual area = Map area × Scale ratio squared
= 3.8 cm² × 0.25 km²/cm²
= 0.95 km².

Therefore, the forest preserve has an actual area of 0.95 square kilometers.

what if the value of x? show all work

Answers

For this case we can make use of the Pythagorean theorem.
 We have then:
 (root (117)) ^ 2 = x ^ 2 + 6 ^ 2
 Clearing x we have:
 x ^ 2 = (root (117)) ^ 2 - 6 ^ 2
 Rewriting:
 x = root (117-36)
 x = root (81)
 x = 9
 Answer:
 The value of x is given by:
 x = 9 cm

The circle shown here has area πr2. If its radius is tripled in length its new area will be

Answers

[tex]\bf \textit{area of a circle}\\\\ A=\boxed{\pi r^2}~~ \begin{cases} r=radius\\ -----\\ r=\stackrel{tripled}{3r} \end{cases}\implies A=\pi (3r)^2\implies A=\pi (3^2r^2) \\\\\\ A=9\boxed{\pi r^2}\impliedby \textit{9 times the original area}[/tex]

(-2q^4)(-8q^3b^6)
help I need to simplify this problem

Answers

Multiply the constants. Multiply the variables according to the rules of exponents.
[tex](-2q^{4})(-8q^{3}b^{6}) = ((-2)(-8))q^{(4+3)}b^{6}\\\\=16q^{7}b^6}[/tex]

What are the relationships among radii, chords, tangents, and inscribed angles?

Answers

The relationship between these four sectors are:

The plural of radius is what we call radii. For any line that joins the center or is joining the center to any point in the circumference of a circle is what we call radii.
Note:
If there is an infinite line from the center to circumference then is it called infinite radii.

For any line that joins or is joining two points on the circumference of a circle is known as chord and any line touching the circle is what we call as tangent to the circle.

Lastly, the intersection of bisector angles is known as in-center or inscribed.

Below are attached pictures of figures



WILL MARK BRAINLEST * PLEASE HELP AND FAST :)

Answers

A stem and leaf plot is an abbreviated way of presenting data by grouping the data based on the leading number. In this plot, the minimum number is 54 (5|4), and the maximum is 96(9|6).

The range of a data set is the largest value minus the smallest value; the range for this data set would be 96-54, or 42.

The range of this stem and leaf plot is 42.

In a random sample survey of 80 students at Torrey’s middle school, 24 students said that math was their favorite subject. There are a total of 300 students at this middle school. Based on the survey, which value is the BEST estimate for the number of students who would say that math is their favorite subject?

Answers

First, figure out the percentage of students that said math is their favorite subject in the 80 student sample.
[tex] \frac{24}{80} \times \frac{x}{100} \\ 80x = 2400 \\ x = 30 \\ 30\%[/tex]
Now, we multiply 300 by .3 to approximate how many students would choose math as their favorite subject
[tex]300 \times .3 = 90[/tex]
Estimating, 90 students would choose math as their favorite subject going off of the given data.

Final answer:

Based on the survey where 30% of 80 students favored math, the best estimate for the total number of students preferring math out of 300 at the middle school is 90 students.

Explanation:

In a random sample survey of 80 students at Torrey's middle school, 24 students said that math was their favorite subject. This represents 30% of the surveyed group (24 out of 80 students). To estimate the number of students who would say that math is their favorite subject throughout the entire middle school, we can use this percentage.

To find the estimated number of students who favor math in the whole school, which has 300 students, we apply the 30% to the total school population:

Total number of students: 300Percentage favoring math: 30%Estimated number of students favoring math: 300 students * 0.30 = 90 students

Therefore, the best estimate for the number of students who would say that math is their favorite subject at this middle school is 90 students.

hey can you please help me posted picture of question

Answers

From the graph we can observe that G(x) is obtained by shifting F(x) 3 units to the left and 1 unit upwards.

Thus, both horizontal and vertical translations are involved. Horizontal translation of 3 units to left can be obtained by adding 3 to x in the equation and vertical translation of 1 can be obtained by adding 1 to the entire function.

So,

G(x) = F(x+3) + 1

G(x) = (x+3)² + 1

Thus the correct answer is option C

20 pt question on angles plz help

Answers

just set it up as 2x +5 =5x-25
and you should get x=10
congruent means that bot S and T are the same degrees
 so we can set S and T equal to each other and solve:

2x +5 = 5x-25

subtract 2x from each side:

5 = 3x-25

 add 25 to each side:

30 = 3x
 divide both sides by 3 to get x

x = 30 / 3
x = 10
 now we know x so replace x with 10 and solve for S

S = 2(10) +5 = 20+5 = 25

 angle S = 25 degrees



There are five green marbles numbered 1-5 and there are 4 yellow marbles numbered 1-4. what is the probability of picking a green or odd numbered marble

Answers

{g,g,g,g,g,y,y,y,y}

5+4=9

P(odd/green)=3/9 = 1/3 = .33 or 33% approximately

# 12 Q please find the volume

Answers

The answer is 1256.0 cm^3
The can of soup is a cylinder.
To find the area of a cylinder, the formula is [tex] \pi [/tex] x r^2 x h
Plug in the given into the formula.

The answer  to your question would be 1256.0 cm^3


The can of soup is a cylinder.
Area of cylinder = the formula is  x r^2 x h

Substitute all the given and it will give you the answer of 1256.0 cm^3.

Find the general form of the complete partial fraction decomposition of the integrand. use it to determine whether or not a term of each type listed below occurs in the complete partial fraction decomposition. select true if it does occur and false if it does not.

Answers

The answer is int(x^2-4x / X = 3).

hey can you please help me posted picture of question

Answers

All the statements are true except the 1st one.

The parent absolute function is y = |x| and its has only one x-intercept which occurs at x = 0

The rest statements are true. As x value gets closer to 0, the y values also gets closer to zero.

So, correct statements are options 2,3,4  

10q-3r=14 write a formula for g (r) in terms of r

Answers

Answer:

3/10r +7/5

Step-by-step explanation:

10q−3r=14

10q=3r-14

10q=3r/10 +14/10

q=3/10r+7/5

Final answer:

To find g(r) in terms of r, the equation 10q-3r=14 is manipulated algebraically to isolate q as g(r)=(14+3r)/10.

Explanation:

The student's question involves solving a linear equation for a variable. This is a standard algebraic task often encountered in high school mathematics. The student is given the equation 10q-3r=14 and is asked to write a formula for g(r) in terms of r, implying a need to solve for q as a function of r, which can be named g(r).

To isolate q, we perform algebraic manipulations:

First, add 3r to both sides of the equation to get 10q = 14 + 3r.Next, divide both sides of the equation by 10 to solve for q, which gives us q = (14 + 3r) / 10.Last, we rename q as g(r) which results in the final function: g(r) = (14 + 3r) / 10.

This function represents q in terms of r, and g(r) is thereby defined.

The length of the shorter base in an isosceles trapezoid is 4 in, its altitude is 5 in, and the measure of one of its obtuse angles is 135°. Find the area of the trapezoid.

Answers

The answer is 45.

Ask me if you still don't understand it because I didn't write any explanation.

Answer:

45

Step-by-step explanation:

A statistician observes the number of heads that occur when a coin is tossed 1000 times

Answers

A coin wouldn't be a coin without two sides

find the surface area of the solid formed by the net

Answers

The net appears to describe a cylinder with diameter 8.46 ft and height 17.25 ft. The total surface area is the sum of the areas of the circles and the rectangle.

The area of a circle with diameter d is given by
  A = (π/4)d²
The area of the rectangle is the product of its length (πd) and width (h).
  A = πdh
So, the total area is the sum of the areas of 2 circles and the rectangle:
  A = 2(π/4)d² +πdh
  A = πd(d/2 +h)
  A = π(8.46 ft)(4.23 ft +17.25 ft) = 181.7208π ft²
  A ≈ 570.89 ft²

The surface area of the cylinder formed by the net is about 570.89 ft².

What is the sum of the first 51 consecutive odd positive integers?

Answers

We call:

[tex] a_{n} [/tex] as the set of the first 51 consecutive odd positive integers, so:

[tex]a_{n} = \{1, 3, 5, 7, 9...\} [/tex]

Where:
[tex]a_{1} = 1[/tex]
[tex]a_{2} = 3 [/tex]
[tex]a_{3} = 5 [/tex]
[tex]a_{4} = 7 [/tex]
[tex]a_{5} = 9 [/tex]
and so on.

In mathematics, a sequence of numbers, such that the difference between two consecutive terms is constant, is called Arithmetic Progression, so:

3-1 = 2
5-3 = 2
7-5 = 2
9-7 = 2 and so on.

Then, the common difference is 2, thus:

[tex]a_{n} = \{ a_{1} , a_{1} + d, a_{1} + d + d,..., a_{1} + (n-2)d+d\} [/tex]

Then:

[tex]a_{n} = a_{1} + (n-1)d[/tex]

So, we need to find the sum of the members of the finite series, which is called arithmetic series:

There is a formula for arithmetic series, namely:

[tex] S_{k} = ( \frac{a_{1} + a_{k}}{2} ).k[/tex]

Therefore, we need to find:
[tex] a_{k} = a_{51} [/tex]  

Given that [tex]a_{1} = 1[/tex], then:

[tex]a_{n} = a_{1} + (n-1)d = 1 + (n-1)(2) = 2n-1 [/tex]

Thus:
[tex]a_{k} = a_{51} = 2(51)-1 = 101[/tex]

Lastly:

[tex] S_{51} = ( \frac{1 + 101}{2} ).51 = 2601[/tex] 

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