7x - 4x + 3 simplify

Answer:

Step-by-step explanation:

What is 3.37 as a percent?

To write 3.37 as a percent have to remember that 1 equal 100% and that what you need to do is just to multiply the number by 100 and add at the end symbol % .

3.37 * 100 = 337%

And finally we have:

3.37 as a percent equals 337%

Answer:

337%

Step-by-step explanation:

3.37x100=337

Answer:

cos 75 = 16/x ---> x = 16/cos75 = 61.8 ft.

Answer:

A) 35/12

Step-by-step explanation:

The tangent of an angle is the opposite side of that angle over the adjacent side of the angle

Answer:

I think the answers 66 not quite sure though

Step-by-step explanation:

I just subtracted 111 and 45

Answer:

I'm pretty sure it is the second one because > means it won't be filled in and it means greater than so greater than 2

Answer:

600

Step-by-step explanation:

Formula - length x width x height

(5 x 12 x 10)

number 3 going across the x axis

number 5 going across the y axis

Answer:

The first friend has 40 coins.

Step-by-step explanation:

The statement says that the two friend have a total of 60 coins, which can be expressed as:

x+y=60 (1), where:

x is the first friend

y is the second friend

Also, the statement says that if the first friend gives 1/4 of his coins to the second friend, they will have an equal number of coins which means that if you subtract 1/4 of the coins the first friend has this would be equal to the number of coins the second friend has now, which is:

x-1/4x=y+1/4x

x-1/4x-1/4x=y

y=x-2/4x

y=x-1/2x (2)

Next, you have replace (2) in (1) and solve for x:

x+x-1/2x=60

2x-1/2x=60

3/2x=60

x=60/(3/2)

x=(60*2)/(1*3)

x=120/3

x=40

Finally, you can replace the value of x in (2) in order to find the value of y:

y=40-1/2(40)

y=40-(20)

y=20

According to this, the answer is that the first friend has 40 coins.

Answer:

$13.20 or $2.20

Step-by-step explanation:

Since percents are decimals, we can figure out the tip by multiplying the total by the decimal percent.

11 x .20 = 2.2

Now the answer depends on what you need the answer to be. if you need the total, it's $13.20.

If you need the tip, it's $2.20.

Answer:

Length & Breadth could be : 4 meters , 5 meters

Step-by-step explanation:

Border, ie perimeter measurement of Rectangle = 2 ( Length + Breadth )

So, 2 (Length + Breadth) = 18

Length + Breadth = 18 / 2

Length + Breadth  = 9

So, sum of length & breadth must be = 9.

(L, B) = (2,5) ; (2,8) ; (2,9) and (3,5) ; (3,8) ; (3,9) don't satisfy this condition. (4,5) ; (4,8) also don't.

(L, B) = (4,5) satisfy it. As sum 4 + 5 = 9.

Answer:

Primer hermano = x = 16 años

Segundo hermano = y = 9 años

Step-by-step explanation:

Representemos sus edades como:

Primer hermano = x

Segundo hermano = y

Dos hermanos tienen 7 años de diferencia

= x - y = 7

x = 7 + y

La suma de los cuadrados de sus edades es 337.

x² + y² = 337

Sustituyendo

(7 + y) ² + y² = 337

Cuadrado

(7 + y) (7 + y) + y² = 337

49 + 7y + 7y + y² + y² - 337 = 0

2y² + 14y - 288 = 0

Paso 1: Factoriza el lado izquierdo de la ecuación.

2 (y − 9) (y + 16) = 0

Paso 2: Iguala los factores a 0.

y - 9 = 0 o y + 16 = 0

y = 9 o y = −16

Por tanto, y = 9 años

x = 7 + y

x = 7 + 9

x = 16 años

Primer hermano = x = 16 años

Segundo hermano = y = 9 años

Answer:

4

Step-by-step explanation:

m= y2-y1

     x2-x1

m= 3+1  (anything minus a negative is a positive!)

     2-1

m=4

Answer:

where is the table or how?

The 95% confidence interval for the true mean purchase total for all customers is ($113, $137).

Degrees of freedom = t* = 2.0452

The t-distribution is used when the standard deviation for the population is not known, and the bounds of the confidence interval are given according to the following rule:

[tex]X \sim N(\mu, \sigma) \implies \overline{X} \sim N(\mu,\sigma/\sqrt{n} )[/tex]

The variables of the equation are:

x bar is the sample mean.

t is the critical value.

n is the sample size.

s is the standard deviation for the sample.

The critical value, using a t-distribution calculator, for a two-tailed 95% confidence interval, with 30 - 1 = 29 df, is t = 2.0452.

The confidence interval is given as follows:

125 - 2.0452 x 32/√ (30) = $113.

The upper bound of the confidence interval is given as follows:

125 + 2.0452 x 32/√  (30) = $137.

More can be learned about the t-distribution at ;

brainly.com/question/17073112

#SPJ2

The complete question is

"A store manager wants to investigate customer spending in his store. He randomly selects 30 customers and records their purchase total. He finds the mean to be $125 and the standard deviation to be $32. Construct and interpret a 95% confidence interval for the true mean purchase total for all customers. Use this table to determine the appropriate value of t*. Enter the degrees of freedom and the value of t* (exactly as you see it written in the table). Degrees of freedom = t* ="

Answer: one

Step-by-step explanation: 11/6 = 1 r5

55%green25%yellow20%red

Answer:2

Step-by-step explanation: because

Answer: c. 420 m

Step-by-step explanation:

Answer:

2/3(x+9)=22

Step-by-step explanation:

Answer:

1.12 2.12.gg

Step-by-step explanation:

1 and 2. ggg dude ytsr5e3uvrrhitghhbnnmkooyffrrcchutddb

Answer:

Step-by-step explanation:

9^2 + 15^2 = x^2

   81 + 225 = x

          17.49 = x

Rounded to the nearest tenth:

                 x = 17.5

Answer:

24, 12, 10, 15, 10, 22, 12

mean:  7

median: 12

mode:  12

Range: 14

Step-by-step explanation:

Answer: Mean=15, Median=12, Mode=10 and 12, Range=14

Step-by-step explanation:

Data:

Numbers: 10, 10, 12, 12, 15, 22, 24

Mean: x, Median: x, Mode: x, Range: x

Step One, Find the Mean by adding all of the numbers and dividing them by the number of numbers

10+10+12+12+15+22+24=105/7=15

Mean=15

Reason: By adding all of the numbers together and dividing them by the number of numbers, you can find the mean because that is the method on finding the mean.

Step Two, Find the Median(middle) by finding the number in the middle

10, 10, 12, 12, 15, 22, 24

Median=12

Reason: Since the median is the number in the middle, 12 would be the median since it is the number in the middle of the array of numbers.

Step Three, Find the mode by finding the number that show up the most

10, 10, 12, 12, 15, 22, 24

Mode=10 and 12

Reason: Since mode is finding the number that shows up the most, 10 and 12 would be the answer for that reason and that they show up the same number of times in the array of numbers.

Step Four, Find the range by subtracting the biggest number by the smallest

24-10=14

Reason: Since to find the range you have to subtract the biggest number(24) by the smallest(10) the answer has to be 14 because that us the answer to 24-10.

I hope this helps!

Given:

The graph of a polynomial.

To find:

The number of roots of the polynomial lie between x = -4 and x = 3.

Solution:

From the given graph it is clear that the graph is a downward U-shaped curve. It means the given graph represents a quadratic polynomial.

The graph of the polynomial is below the x-axis immediate before x=-2 and above the x-axis immediate after x=-2. It means the graph intersect the x-axis at x=-2.

The graph of the polynomial is above the x-axis immediate before x=2 and below the x-axis immediate after x=2. It means the graph intersect the x-axis at x=2.

Since the graph of the polynomial divides the x-axis two times between x = -4 and x = 3, therefore the two roots of the polynomial lie between x = -4 and x = 3.

Answer:

6

Step-by-step explanation:

Answer:

y = x + 1

Step-by-step explanation:

x + y = 6

y = -x + 6

Perpendicular slope to -1 is 1

(0,1)

y - y1 = m(x - x1)

y - 1 = 1(x - 0)

y - 1 = x

y = x + 1

Standard form:

y = x + 1

-x + y = 1

Answer:

the answer is D) 25 degrees c

Answer: D) 25 degrees c

Step-by-step explanation:

Answer:

Which graph best represents the change in population of the two cities?

Year Townville Village City

1960 37,500 17,500

1970 42,500 25,000

1980 35,000 20,000

1990 30,000 30,000

2000 15,000 32,500

Step-by-step explanation:

A. is right

✿Answer:

✂----------------------

Let, number of wristbands = x

number of belts = y

[tex]x+y=30[/tex]  ➞ [tex]x~5.5[/tex]

[tex]5.50x+8.75y=204[/tex] [tex]x1[/tex]

[tex]5.50x+5.5y=165\\5.5x+8.75y=204\\---------\\-3.25y=-39[/tex]

[tex]y=-39/3.25[/tex]

[tex]y=12[/tex]

[tex]x=30-12=18[/tex]

[tex]So, Both~ sold ~18 ~wristbands ~and ~12~ belts[/tex].

❄❄❄❄❄❄

Answer:

40%

Step-by-step explanation:

Find the percent by dividing 220 by 550

220/550

= 0.4

So, he spends 40% of his monthly income on gas

Answer: 40%

Step-by-step explanation:

I  would put an explanation but I am supposed to be in class!