Mathematics High School

evaluate 6x^2 + 18x -15 at x = 3

A. 75

B. 93

C. 133

D.363

Evaluate 6x^2 + 18x -15 At X = 3 A. 75B. 93C. 133D.363

Answers

Answer 1

Replace the x in the equation with 3 and solve:

6(3)^2 + 18(3) -15

6(9) + 54 - 15

54 + 54 - 15

108 - 15

93

Answer: B.93

Related Questions

For each ordered pair, determine whether it is a solution to 5x+7y=-3.
Is it a solution?

(-4,-3)

(-2,1)

(6,0)

(5, – 4)

Answers

Answer:

-2,1 I am pretty sure that is correct.

Solve the system of equations. 2x - y + 3z =5, -6x + 3y - 9z = -15, 4x - 2y + 6z = 10

Answers

2x+3z=y+5

Step 2: Add -3z to both sides.

2x+3z+−3z=y+5+−3z

2x=y−3z+5

Step 3: Divide both sides by 2.

2x/2

=y−3z+5/2

x=1/2y+

−3/2z+

5/2

Answer:

x=1/2y+

−3/2z+

5/2

Steve works as a football referee for 10 hours a week, and as a bus driver for 30 hours per week.if both jobs pay $21 per hour,how much does Steve earn each week?​

Answers

Answer:

$840

Step-by-step explanation:

First, add 30 to 10.

Then, multiply your answer (40) by 21.

Finally, you get your final answer of $840.

What does s equal 2 plzz I need it plzzz

Answers

Answer:

16

Step-by-step explanation:

another brainlest please

3. For each object, choose an appropriate scale fora

drawing that fits on a regular sheet of paper, Not all of the

scales on the list will be used,

20

Objects

A. A person

B. A football field

(120 yards by

53, yards)

C. The state of

Washington

(about 240

miles by 360

miles)

The floor plan

of a house

E. A rectangular

farm (6 miles

by 2 mile)

Scales

1. 1 in : 111

Di cm: 1m

3. 1:1000

4. Ift: 1 mile

5. 1:100,000

6.1 mm: 1 km

7. 1:10,000,000

Answers

I’m not sure but pls mark brainly answer I need points :)

Answer:

Step-by-step explanation:

A person: 1 in : 1 ft

A football field (120 yards by 53 1/3 yards) is 10,000,000

C The state of Washington (about 240 miles by 360 is 1 fit: 1 mile

D The floor plan of a house is 1 mm: 1 km

E A rectangular farm (6 miles by 2 mile) is 1 cm : 1 cm


Choose all the situations that are independent
A.Two cards are drawn (with replacement).
B.Die is thrown and a coin flipped.
C.A die is thrown and the same die is thrown again.
D.Two marbles are pulled from a deck (without replacement)

Answers

Answer: A and D

Step-by-step explanation: A and D are the only events in which only one type of object is used.

All the situations that are independent are B. Die is thrown and a coin is flipped, C. A die is thrown and the same die is thrown again and D. Two marbles are pulled from a deck (without replacement).

How do you calculate Probability?

The Probability of an event can be calculated through chance formulation via absolutely dividing the favorable quantity of outcomes through the overall wide variety of possible effects.

How do you provide an explanation for probability?

Probability is the threat that something will show up, or how probable it is that an event will occur. when we toss a coin inside the air, we use the phrase possibility to refer to how likely it's miles that the coin will land with the heads aspect up.

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a car drives at a speed 90 km/h for 2 hours and 20 mintues, how far does the car drive?

Answer in km. ​

Answers

Here you go! I hope this helped !

Translate the sentence into an equation.
Twice the difference of a number and 2 is 9.
Use the variable w for the unknown number.

Answers

Answer:

2(w-2) = 9

Step-by-step explanation:

Check:

2w - 4 = 9

2w = 13

w = 6.5

2(6.5 - 2) = 9

2(4.5) = 9

9 = 9

I really need help!

6. 4a - 6b

7. 9a - 3b

My teacher wants me to simplify these, but I cant solve them. I have even tried a calculator and it says no like terms.

Answers

Answer:

6. 2(2a-3b) 7. 3(3a-b)

Step-by-step explanation:

6. 4a-6b , 2^2 .a-(2.3)b = 2(2a-3b)

7. 9a-3b , 3^2. a-3b =3(3a-b)

When two number cubes are rolled, what is the probability of getting 5 or 4 as the product of the two numbers

Answers

Answer:

5/36

Step-by-step explanation:

number cubes are rolled = dies that have 6 faces with numbers 1,2,3,4,5,6

Getting 5 or 4 as the product of the two numbers.

How many ways we can get 5 or 4 as a product?

5 ways : 1*4, 1*5, 2*2, 4*1, and 5*1

All possible  outcomes are 36 (see table)

P = ways to get 4 or 5 as a product/ all possible ways = 5/36

Use an equation to find the value of k
so that the line passing through (−4,k)
and (6,−7)
has a slope of −1/-5
.

Answers

Answer:

Explanation:

The slope can be found by using the formula:

m

=

y

2

−

y

1

x

2

−

x

1

Where

m

is the slope and (

x

1

,

y

1

) and (

x

2

,

y

2

) are the two points on the line.

Substitute the values given in the problem and solve for

K

:

1

=

4

−

−

K

−

1

−

2

1

=

4

+

K

−

3

−

3

×

1

=

−

3

×

4

+

K

−

3

−

3

=

−

3

×

4

+

K

−

3

−

3

=

4

+

K

−

3

−

4

=

4

+

K

−

4

−

3

−

4

=

4

−

4

+

K

−

7

=

0

+

K

−

7

=

K

K

=

−

7

Answer link

unas pinzas se usan para sacar una espina que opone 0,5N de resistencia. la pinza mide 8 cm y la presion de ejerce a 4 cm de fulcro.

Answers

Answer:

its 12cm

Step-by-step explanation:

Can someone help me please

Answers

Answer:

Step-by-step explanation:

Because 2 1/4=2 2/8

so 2 2/8 - 1 1/8 equals 1 1/4

:)

the truck travels 31 miles in one hour. at that rate, how far can the truck go in 18 hours ?

____ miles

Answers

Answer:

558 miles

Step-by-step explanation:

You would just take 31 and times it by 18 which would give you 558 miles :)

Hope this helps you :)

Have an amazing day <3

Answer:

558 miles.

Step-by-step explanation:

31 x 18 = 558 !

What is 3 3/7 in it's simplest form?

Answers

Answer:

Mixed Number: 3 3/7

Improper Fraction: 24/7

Step-by-step explanation:

3 3/7 is already in its simplest form. However, we can also turn it into an improper fraction.

3 3/7 --> 24/7

You get that by multiplying 3 and 7 (21) and then adding the numerator (3) to get 24. The denominator (7) remains the same. All in all, it becomes: 24/7

What is the interval notation for all real numbers?

Answers

Answer:

15 15 17 17 19 30

Step-by-step explanation:

to ne and to 69 04 16 97 50 27

allus
Find the area of the circle.
Use 3.14 for T.
O
d = 12 ft
A = [?] ft2
A=Tr2
Enter

Answers

Answer:

Step-by-step explanation:

What is the greatest common factor of 64xyz−36xy+24x?

Answers

1) Find the Greatest Common Factor (GCF).

4x

2) Factor out the GCF. (Write the GCF first. Then, in parentheses, divide each term by the GCF.)

[tex]4x(\frac{64xyz}{4x} +\frac{-36xy}{4x} +\frac{24x}{4x})[/tex]

3) Simplify each term in parentheses.

[tex]4x(16yz-9y+6)[/tex]

The greatest common factor of equation A = 64xyz - 36xy + 24x is 4x

A = 4x ( 16yz - 9y + 6 )

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the value of A is given by

A =  64xyz - 36xy + 24x

Now , the Greatest Common Divisor is the highest number that divides exactly into two or more numbers. It is also expressed as GCF

So , the equation A can be factorized as

Taking 4x as the common term of the equation , we get

A = 4x ( 16yz - 9y + 6 )

So , the common term is 4x and the greatest common factor of the equation A is 4x

Therefore , the GCF is 4x

Hence , The greatest common factor of equation A = 64xyz - 36xy + 24x is 4x and A = 4x ( 16yz - 9y + 6 )

To learn more about equations click :

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find the gcf of 18 and 16

Answers

Answer:

2

Step-by-step explanation:

Factors for 18: 1, 2, 3, 6, 9, 18

Factors for 16: 1, 2, 4, 8, 16

Common factors are: 1, 2. 2 is the greatest digit in this case so this is your final answer.

What is the solution to x 4 – 12x 2 + 10 > 0?

Answers

Answer:

X>5/4

Step-by-step explanation:

What is the solution to x 4 – 12x 2 + 10 > 0?

The sum of a number times 8 and 23 s greater than or equal to -20

Answers

True
ughhhhhhh why does it need to be 20 characters
I don’t know lm sorry

Solve the equation or formula for the variable specified
x=3y-9, for y

Answers

Answer:

y=1/3x+3

Step-by-step explanation:

Nicole bought a meal in a town with a 8% sales tax. She tips 20% on the bill, and then adds the sales tax. What is the total cost of the meal if she orders a $15 menu item.

Answers

Answer:  the total cost of the meal is $19.35.

Step-by-step explanation

1) If you can read 40 pages in 2 hours, how many pages can you read in 5 hours?
es
A) 20
B) 80
C) 100
D) 200

Answers

Answer:

C) 100

Step-by-step explanation:

If you can read 40 pages in 2 hours that means you can read 20 pages in 1 hour. therefore in 5 hours you can read 20 times 5 = 100 pages

the answer is c your welcome

A speedy biker can travel 5 km per t hours. What expressions best illustrates the situation

Answers

Answer:

5 km

--------

   t

Step-by-step explanation:

The biker's speed is the unit rate

5 km

--------   where t is in hours

   t

A line with a slope of –1 passes through the point (–6, 4) . What is its equation in slope -intercept form?

Answers

Answer:

y=-1x-2

Step-by-step explanation:

What is the y-intercept of the following equation? *
*
y = – 11x – 5


Answers

Answer:

(0,-5)

Step-by-step explanation:

Equation a line into slope-intercept form simplifying fractions 5x+6y=42?

Answers

Answer:

5x+6y = 42

Step-by-step explanation:

solve for y

6y = -5x + 42

y = (-5/6)x +42/6

y =(-5/6)x + 7 where -5/6=slope and 7=y intercept

Let’s start from 5x+6y=42.

We want it to get down to y= something. Since we are trying to convert it to y=mx+b form!

5x+6y=42

Subtract 5x on both sides.

6y=-5x+42

Divide both sides by 6.


y=-5/6x+7.

And that’s the equation in slope intercept form!

What is the circunference of this circle?
r = 2 km

Answers

Answer: C≈12.57km or 12570 m

Step-by-step explanation:

circumference of circle. = 2πr

= 2× 22/7× 2

= 12.57km

=12.57. ×. 1000 m

= 12570 m

Mike bought a set of golf clubs that cost k dollars. He signed an installment agreement requiring
a 5% down payment and monthly payments of g dollars for 12 years.
a.
Express his down payment algebraically.
b. How many monthly payments must Mike make?
C.
Write expressions for the total amount of the monthly payments and the finance charge.

Answers

Using the appropriate interest relation, the solution to the problems posed are :

Down payment = 0.05k 144 monthly payments Total monthly payment made = 144g

Down payment :

5% of total cost Total cost = k

5% × k = 0.05k

B.)

Number of monthly payments :

Number of months per year = 12

Number of years = 12

Number of monthly payments = 12 × 12 = 144

C.)

Total charge :

Monthly payment = $g

Number of monthly payments × amount paid

g × 144 = 144g

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