Mathematics College

Find the value of 3(ab)^2 if a=2 and b=-1

Answers

Answer 1

Answer:

Step-by-step explanation:

3 (2*-1)^2

3*-2^2

3*4

Answer 2

12 is the answer hope
This helps

Hope

Related Questions

WILL GIVE BRAINLIEST POINTS AND LIKES AND FIVE STARS!!!!
Which is a correct statement about the description “six less than the quotient of a number cubed and nine, increased by twelve” when n = 3? Check all that apply.

The correct expression is 6 minus StartFraction n cubed Over 9 EndFraction + 12.
The correct expression is StartFraction n cubed Over 9 EndFraction minus 6 + 12.
One of the steps to determining the value when n = 3 is 3 minus 6 + 12.
One of the steps to determining the value when n = 3 is 6 minus 3 + 12.
The value when n = 3 is 7.
The value when n = 3 is 9.
The value when n = 3 is 15.
The value when n = 3 is 17.

Answers

Option 2 is correct.The value when n= 3 is 9

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Answer:

The value when n = 3 is 9

Step-by-step explanation:

I ANSWERD FIRST

Write 7x+4y=16 in slope-intercept form.

Answers

4y=7x+16 is the answer believe

What is the volume of this composite solid?
2 m
8 m
3 m
5 m

Answers

Answer:

240

Step-by-step explanation:

2*8*3*5

Answer:

160

Step-by-step explanation:

a P e X

You are buying a coke for yourself and tacos for your friends. You have a limited budget of y dollars. If the coke cost $2.25 and the tacos
$1.25 each, write a linear inequality to help determine how many tacos you can buy.
Oy > 1.25x + 2.25
Oy > 2.25x + 1.25
Oy < 2.252 + 1.25
Oy < 1.250 + 2.25

Answers

Answer:

D. Y<1.25x+2.25

Step-by-step explanation:

Will mark brainliest.

Answers

Answer:

integer

natural

whole

rational

Step-by-step explanation:

integer

natural

rational

real

whole

what is the slope and y intercept of y=4x-5

Answers

Answer:

theres is your answer

Step-by-step explanation:

Explanation: y=4x−5 is in the form of the slope-intercept formula for a linear equation, y=mx+b , where m is the slope and b is the y-intercept. By definition, the y-intercept is −5 .

A hot air balloon can hold up to 300 pounds of weight. The balloon's pilot weighs 140 pounds. How many 20-pound bags of sand (b) can also be carried by the hot air balloon? Select three options.

–2
0
5
8
10

The answer since none of the others are correct are 0,5, and 8. Otherwise known as B,C,and D

Answers

Answer:

8, 5, 0 (B, C, D)

Step-by-step explanation:

okay so in order to solve this, first you would do 300-140 since the limit is 300 and 140 is already occupied. 300-140=160. Next, to find the number of 20-pound bags that can fit, you would do 160/20 or just 20b<_160 (<_ is less than or equal to). b<_ 8, therefore you could have anything ranging from 0b-8b. You cannot have a negative number of bags, that is just not possible, and with 10 bags, you surpass the weight limit by 40 pounds.

Solve the equation M^2+4m+9=0.

Fully simplify all answers including non real solutions

Should end up with an answer like M=

Answers

Answer:

2 solutions:

1) m =(4-√52)/2=2-√ 13 = -1.606

2) m =(4+√52)/2=2+√ 13 = 5.606

Step-by-step explanation

The first term is, m2 its coefficient is 1 .

The middle term is, -4m its coefficient is -4 .

The last term, "the constant", is -9

Step-1 : Multiply the coefficient of the first term by the constant 1 • -9 = -9

Step-2 : Find two factors of -9 whose sum equals the coefficient of the middle term, which is -4 .

-9 + 1 = -8

-3 + 3 = 0

-1 + 9 = 8

Observation : No two such factors can be found !!

Conclusion : Trinomial can not be factored

Equation at the end of step 1:

m2 - 4m - 9 = 0

STEP 2:

Parabola, Finding the Vertex:

2.1 Find the Vertex of y = m2-4m-9

Parabolas have a highest or a lowest point called the Vertex . Our parabola opens up and accordingly has a lowest point (AKA absolute minimum) . We know this even before plotting "y" because the coefficient of the first term, 1 , is positive (greater than zero).

Each parabola has a vertical line of symmetry that passes through its vertex. Because of this symmetry, the line of symmetry would, for example, pass through the midpoint of the two x -intercepts (roots or solutions) of the parabola. That is, if the parabola has indeed two real solutions.

Parabolas can model many real life situations, such as the height above ground, of an object thrown upward, after some period of time. The vertex of the parabola can provide us with information, such as the maximum height that object, thrown upwards, can reach. For this reason we want to be able to find the coordinates of the vertex.

For any parabola,Am2+Bm+C,the m -coordinate of the vertex is given by -B/(2A) . In our case the m coordinate is 2.0000

Plugging into the parabola formula 2.0000 for m we can calculate the y -coordinate :

y = 1.0 * 2.00 * 2.00 - 4.0 * 2.00 - 9.0

or y = -13.000

Parabola, Graphing Vertex and X-Intercepts :

Root plot for : y = m2-4m-9

Axis of Symmetry (dashed) {m}={ 2.00}

Vertex at {m,y} = { 2.00,-13.00}

m -Intercepts (Roots) :

Root 1 at {m,y} = {-1.61, 0.00}

Root 2 at {m,y} = { 5.61, 0.00}

Add 9 to both side of the equation :

m2-4m = 9

Now the clever bit: Take the coefficient of m , which is 4 , divide by two, giving 2 , and finally square it giving 4

Add 4 to both sides of the equation :

On the right hand side we have :

9 + 4 or, (9/1)+(4/1)

The common denominator of the two fractions is 1 Adding (9/1)+(4/1) gives 13/1

So adding to both sides we finally get :

m2-4m+4 = 13

Adding 4 has completed the left hand side into a perfect square :

m2-4m+4 =

(m-2) • (m-2) =

(m-2)2

Things which are equal to the same thing are also equal to one another. Since

m2-4m+4 = 13 and

m2-4m+4 = (m-2)2

then, according to the law of transitivity,

(m-2)2 = 13

The Square Root Principle says that When two things are equal, their square roots are equal.

Note that the square root of

(m-2)2 is

(m-2)2/2 =

(m-2)1 =

m-2

Now, applying the Square Root Principle to Eq. #2.2.1 we get:

m-2 = √ 13

Add 2 to both sides to obtain:

m = 2 + √ 13

Since a square root has two values, one positive and the other negative

m2 - 4m - 9 = 0

has two solutions:

m = 2 + √ 13

m = 2 - √ 13

Solving m2-4m-9 = 0 by the Quadratic Formula .

According to the Quadratic Formula, m , the solution for Am2+Bm+C = 0 , where A, B and C are numbers, often called coefficients, is given by :

- B ± √ B2-4AC

m = ————————

In our case, A = 1

B = -4

C = -9

Accordingly, B2 - 4AC =

16 - (-36) =

Applying the quadratic formula :

4 ± √ 52

m = —————

Can √ 52 be simplified ?

Yes! The prime factorization of 52 is

2•2•13

To be able to remove something from under the radical, there have to be 2 instances of it (because we are taking a square i.e. second root).

√ 52 = √ 2•2•13 =

± 2 • √ 13

√ 13 , rounded to 4 decimal digits, is 3.6056

So now we are looking at:

m = ( 4 ± 2 • 3.606 ) / 2

Two real solutions:

m =(4+√52)/2=2+√ 13 = 5.606

or:

m =(4-√52)/2=2-√ 13 = -1.606

A hot air balloon can hold up to 300 pounds of weight. The balloon's pilot weighs 140 pounds. How many 20-pound bags of sand (b) can also be carried by the hot air balloon? Select three options.

–2
0
5
8
10

It's these since none of the others are correct are 0,5, and 8. Otherwise known as B,C,and D

Answers

Answer:

8 sand bags

Step-by-step explanation:

300 - 140 = 160

160 ÷ 20 = 8

8 sand bags of 20-pounds each.

Which expression is equivalent to the area of metal sheet required to make this square-shaped traffic sign? I WILL GIVE BRAINLYIEST!!

Answers

Answer:

The corect one is actually D- 4x2-4x+1

Step-by-step explanation:

y ≥ 12x – 1
y < 43x – 2

Answers

Answer:

Step-by-step explanation:

The solution to this problem is a graph.

Graph y ≥ 12x - 1: this is a straight solid line with slope 12 and y-intercept -1. Due to the presence of the ≥ operator, we must shade (darken) the entire area above this line.

Next, graph y < 43x – 2 using a dashed line (due to the < operator): The slope is 43 and the y-intercept is -2.

Determine where the two lines intersect, either from the graph or algebraically. If algebraically:

equate the two givens:

y = 12x - 1 = y = 43x – 2, which simplifies first to:

12x - 1 = 43x - 2, and second to

1 = 43x - 12x = 31x, which results in x = 1/31.

Substituting 1/31 for x in the first equation, we get:

y = 12(1/31) - 1, or y = 12/31 - 1, or y = 12/31 - 31/31, or y = 19/31

The two graphs intersect at (1/31, 19/31)

Shade (darken) the area beneath (under) the dashed line y < 43x – 2.

The solution is the area that you have darkened twice.

Which one should I choose

Answers

Answer:

100% B

Step-by-step explanation:

Answer:

The first choice: x^6y^5

The answer is A! Hoped I was able to help you out !bjjucyuvvhhhhhhhhhuuu

4.
What is the result of (f X g)(x) if
f(x) = -3x + 11 and g(x) = 11x + 7?
( 33x² 100x - 77
(B 33x - 142x - 77
C -33x + 100x + 77
D -33x² + 142x + 77

Answers

Answer:

thank you

Step-by-step explanation:

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The Better Business Bureau of San Diego states that the standard hotel room average price for a Saturday night stay is $165, but you think it is higher. You go out and take a random sample of 33 hotels and get an average price of $181 with a sample standard deviation of $25. The test statistic is ______________. Round your answer to three decimal places.

Answers

Answer:

3.677

Step-by-step explanation:

We have the following information to answer this question

X = 181 = average price

U = 165 = price

S = 25 = standard deviation

N = 33 = random sample

We use the formula below to calculate the t statistics

T = x-u/s/√n

When we input these values

181-165/25/√33

T = 3.677

We need to find the value of x.

We can see from the figure that x is exterior angle. To find x we can use exterior angle theorem. According to this theorem,

[tex]x=\angle A+\angle B\\\\x=64+70\\\\x=134^{\circ}[/tex]

Hence, the value of x is 134°

please help me asap

Answers

Answer:

1. the first one

2. the second one

Step-by-step explanation:

The open circle means that it isn't equal to so x is less than two because of where its headed on the line

The second one is equal to becasue it's filled in. Once again X is less than this number beacause of which way it is going on the graph

for the first one it would be x < 2
and for the second it would be x < -4.25

the sum of 26 and twice a number

Answers

Answer:

the answer to your question is 78. and the algebraic expression is 26 times 2 equals 52, then 52 plus 26

b) 7p + 6q- 2p + q = ?

Answers

[tex]7p + 6q - 2p + q \\ = (7p - 2p) + (6q + q) \\ = 5p + 7q[/tex]

Answer:

5p+7q is the answer

Step-by-step explanation:

what is 39.5/4 if you tell me you get 45 points

Answers

Answer:

9.875

Step-by-step explanation:

Answer:

9.875

Step-by-step explanation:

get a calculator

HELP HELP HELP
Describe the different ways to determine if lines are parallel by using angle pairs that are formed when the lines are cut by a transversal

Answers

Answer:

Alternate Interior Angles

Alternate Exterior Angles

Same side Interior

Same side Exterior

Corresponding

Step-by-step explanation:

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