What is the value of the following(Please show work)
3x- 1 when x=2
2x - 3+4x when x=-1
Y^2- 6y= 9 when y = 4
Please go FAST!!

Answers

Answer 1

Answer:

1) 3( 2) - 1 = 6 - 1 = 5

2) 2(-1) - 3+4(-1) = -2 -7 = -9

3) 4^2-6(4)=9 = 16-24=9, = -8=9


Related Questions

if you dig a 6 foot hole, how deep is that hole?

Answers

Answer:

Ummmm issa bout 20 feet

Step-by-step explanation: beetle juice

Answer:

20 feet

Step-by-step explanation:

The frequency (f) of the note produced by striking a pipe of length (L) and radius (r) is given by f = 2r + c over 2L where c is the speed of sound, which is mately 13,500 in./sec. The following table shows some frequencies and related pipe lengths for PVC pipe with a radius of 1 in. What length pipe should be used in order to create the lowest note on an 88-key piano (an A), which has a frequency of 27.5 hertz?​

Answers

Now the aim of the above discussion is to internalize the mathematical relationships for open-end air columns in order to perform calculations predicting the length of air column required to produce a given natural frequency. And conversely, calculations can be performed to predict the natural frequencies produced by a known length of air column. Each of these calculations requires knowledge of the speed of a wave in air (which is approximately 340 m/s at room temperatures). The graphic below depicts the relationships between the key variables in such calculations. These relationships will be used to assist in the solution to problems involving standing waves in musical instruments.

Calculate the regression coefficients in the above table by hand, using the statistics below

Answers

The coefficients are three and 85

To qualify for a gold status at awesome airlines one must fly less than 35200 but at least 17600 miles each year if Casey takes a 800 miles round trip flight when visiting his parents how many times does Casey need to visit his parents each year to attain gold status

Answers

800 times 22 is 17600

A total of 716 tickets were sold for the school play. They were either adult tickets or student tickets. There were 66 more student tickets sold than adult tickets. How many adult tickets were sold?

Answers

Answer:

325

Step-by-step explanation:

Let the number of adult tickets sold be x

Therefore, number of students tickets sold = x + 66

Since,

Number of adult tickets + number of student tickets = 716

Therefore,

x + x + 66 = 716

2x + 66 = 716

2x = 716 - 66

2x = 650

x = 650/2

x = 325

Hence, 325 adult tickets were sold.

Write the standard form of the line that passes through (-1,-3) and (2,1).

Answers

Answer:

Step-by-step explanation:

[tex]\mathrm{Line\:passing\:through\:}\left(-1,\:-3\right)\mathrm{,\:}\left(2,\:1\right)\\\\\mathrm{Find\:the\:line\:}\\\mathbf{y=mx+b}\mathrm{\:passing\:through\:}\left(-1,\:-3\right)\mathrm{,\:}\left(2,\:1\right)\\\\\mathrm{Compute\:the\:slope\:}\left(-1,\:-3\right),\:\left(2,\:1\right):\quad \\m=\frac{4}{3}\\\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}\\\\\left(x_1,\:y_1\right)=\left(-1,\:-3\right),\:\left(x_2,\:y_2\right)\\\left\\[/tex]

[tex]\\m=\frac{1-\left(-3\right)}{2-\left(-1\right)}\\\\Refine\\\\m=\frac{4}{3}\\\\\mathrm{Compute\:the\:}y\mathrm{\:intercept}:\quad b=-\frac{5}{3}\\\\y=\frac{4}{3}x-\frac{5}{3}\\[/tex]

Convert equation to standard form

[tex]y - \frac{4}{3} x + \frac{5}{3} = 0\\\\Multiply \:through\: by\: 3;\\\\3\times (y - \frac{4}{3} x + \frac{5}{3} )=0\\\\3y -4x+5 = 0\\Arrange\:n\:form\:of \:;\\Ax +By = C\\\\-4x +3y =-5[/tex]

Solve 2b+4=3b+1 for b

Answers

Answer:

b= 3

Step-by-step explanation:

2b +4 = 3b +1

-2b. -1

b = 3

b=3 ....................

please show work 3[x+4]+4x= -2

Answers

Answer:

x=-2

Step-by-step explanation:

3[x+4]+4x=-2

The 3 multiplies x and 4

3x+12+4x=-2

Group like terms

3x+4x=-2-12

7x=-14

Divide through by 7

7x/7=-14/7

x=-2

What’s the slope of (6, 12) and (-6,-2)

Answers

Answer:

m= 7 / 6

Step-by-step explanation:

we need to start out by plugging in the integers into the formula which is the following:

m= y2 - y1 / x2 - x1

m= -2 - 12 / -6 - 6

then we begin to solve

m= -14 / -12

this is not in its simplest form, so we simplify it

(in this case I simplified by 2)

m= -7 / -6

and because two negatives will give you a positive, your final answer is

m= 7 / 6

Write a ratio for the following description: Kaleel made three times as many baskets as John during a basketball practice.

Answers

Answer:

3:1

Step-by-step explanation:

If John makes 3, Then Kaleel makes 9,  If John makes 1, Then Kaleel makes 3.

hello how do I know when ratios are equivalent and when they are not?​

Answers

To compare ratios, you need to have a common second number. By multiplying each ratio by the second number of the other ratio, you can determine if they are equivalent. Multiply both numbers in the first ratio by the second number of the second ratio. ... If the results are equal, the two ratios are equivalent.

what is the answer for this problem 1+1

Answers

Answer:

2

Step-by-step explanation:

It’s 2 but it can be 11 if u take away the + sign lol

Using distributive property simplify 4 (3x + 7)

Answers

Answer:

12x+28 I think

Step-by-step explanation:

4•3x+7

12x+(4•7)

12x+28

Answer:

[tex]\huge\boxed{\boxed{12x+28}}[/tex]

Step-by-step explanation:

Hello.

The Distributive Property states that

a(b+c)=ab+ac, where a, b, and c can be constants (numbers) or variables (letters).

Now that we know the formula, it's time to simplify! :)

The expression is:

4(3x+7)

Multiply 4 times 3x and 4 times 7:

4×3x=12x

4×7=28

Put the terms together:

12x+28

Can we simplify this expression? No, because 12x and 28 are not like terms.

And we're done!

I hope it helps & have an outstanding day!

~ST2710 :)

Twin​ brothers, Billy and​ Bobby, can mow their​ grandparent's lawn together in 112 minutes. Billy could mow the lawn by himself in 15 minutes less time that it would take Bobby. How long would it take Bobby to mow the lawn by​ himself?

Answers

Answer:

97 minutes

Step-by-step explanation:

express the mass 6,200,000 kilograms using scientific notation in kilograms, and then in grams.

Answers

Answer:

620000000

Step-by-step explanation: 6.2 10^8

Scientific notation is a way of expressing numbers that are too large or too small to be conveniently written in decimal form,62*10^5 is the scientific notation of 6,200,000 kilograms

We need to express 6,200,000 kilograms using scientific notation in kilograms.

What is scientific notation?

Scientific notation is a way of expressing numbers that are too large or too small to be conveniently written in decimal form.

We need to express 6,200,000 kilograms into scientific notation

The format for scientific notation is a x 10^b where a is a number or decimal number such that the absolute value of a is greater than or equal to one and less than ten or, 1 ≤ |a| < 10.

Now 62*10^5 is the required scientific notation.

Therefore 62*10^5 is scientific notation of 6,200,000 kilograms.

To learn more on scientific notation click here:https://brainly.com/question/1705769

#SPJ2


There are 868 males students and
1,187 female students at Ferris
High School. How may more female
students are there than male
students? Show your work.​

Answers

319 females
1187-868 =319

i will give u brainlyist plz When 1/3 is written as a repeating decimal, which digits are repeating? A. 27 B. 37 C. 73 D. 28

Answers

Answer:

1/3 in decimal format is .333333333333... so none of these are correct

Which statement is true about the end behavior of the graft function as the X values goes to positive infinity the functions value goes to negative infinity

Answers

To complete after seminar

2+x^2=18
Help please

Answers

Answer:

2+x^2=18 = 2+4^2=18

Step-by-step explanation:

Because when you have the ( ^2) then that means your going to multiply a number by the same number and then 4 times 4 equals 16 and you still have the +2 therefore you add that on the 16 and 16+2 equals 18.

What is the difference of -9 and -6?

Answers

Answer:

-3

Step-by-step explanation:

-6 - 3 = -9

The difference between -9, and -6 is 3 away on the number line, but it equals -15

Find the equation of the line using the point-slope formula. Write the final equation using slope- intercept form. 6 (1,2) with a slope of - 7 Enter the exact answer.​

Answers

Answer:

y = -7x + 9

Step-by-step explanation:

Point-slope form:

y - 2 = -7 (x -1)

y - 2 = -7x + 7

y - 2 + 2 = -7x + 7 +2

y = -7x + 9

A total of d dollars was donated to 4 charities. Each charity received $375. Which equation can be solved to find the total amount of money donated?

Answers

Answer:

If each charity has received $375 and there is 4 charities, the equation should look like this...

$375 x 4 = d

If you are looking how much was donated all together, the answer is:

$1500 dollars in total was donated.

In ΔXYZ, the measure of ∠Z=90°, YX = 37, ZY = 12, and XZ = 35. What ratio represents the sine of ∠X?

Answers

Answer:

12/37

Step-by-step explanation:

Find the difference of -4 -(5)

Answers

The answer is -9

-4 - 5 = -9

the answer is -4-(5)= -9

ASAP!!! Please help! Due in 15 mins!!!! Help me plsss!!!!

Which equation represents the function described by this table?

A) f (x) = x + 7

B) f(x) = -7x

C) f (x) = x - 7

D) f (x) =7x

Answers

The correct answer would be C, because x is subtracting 7 everytime

help me please this is due today :(:

Answers

Answer:

F(-6, 3) --> F'(-6,3)

G(-4,3) --> G'(-8,3)

H(-2,4) --> H'(-10,4)

Answer:

F(-6,3)

G(-8,3)

H(-10,4)

Step-by-step explanation:

If your reflecting over the red line then all I do is first try to recreate the shape on the other side of the red line. (Like a reflection) And then look at the points it landed on. And that's your answer

x = - 4y + 37x + 3y = 29 pls help i need this grade!!!!!!!!

Answers

I personally got x =1/37 y +29/37

Multiple
1. Which of the following is Eular's formula?
OE-V + F = 2
OV-E+ F = 2​

Answers

Answer:

see explanation

Step-by-step explanation:

Euler's formula for polyhedra is

V- E + F = 2

where V is number of vertices, E number of edges and F number of faces

Jenkins wants to draw a scale drawing of a tree in his yard . The scale of his model is 6in to 12ft . If his drawing is 3 in tall, how tall is the rela tree

Answers

The tree is 6 feet tall
Says the scale of his model is 6in to 12 feet meaning every 6 inches he draws is equal to 12 feet of tree so it’s just cutting it in half.
This should be the correct answer if not then more detail needs to be given in question and I will re submit another answer. Thank you

Evaluate 7x−y if x = 9 and y = 3.


12


13


60


76

Answers

[tex]7x - y[/tex]

Insert values for [tex]x[/tex] and [tex]y[/tex]

[tex]7 \cdot 9 - 3 = 63 - 3 = 60[/tex]

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