If s(x) = 2 - x^2 and t(x) = 3x, which value iS equivalent to (s°f)(-7)?

Answer:

Look below

Step-by-step explanation:

[tex]A. 2x + 4y = 13 \\ B.x + y = 4[/tex]

Either remove the x or y

Lets do X first

In order to remove the 2 from eqaution A, we need to make the coefficient be the same for the x in the equation B.

We can multiply eqaution B by 2 in order to have the same x coefficient as eqaution A. In addition, we must make the 2 a negative (-2) in order to remove x.

[tex]-2(x + y = 4)[/tex]

Now that we have the Xs ready for the elimination, we can proceed to answer for y

[tex]2x + 4y = 13 + (-2x -2y = -8) \\\\2x - 2x = 0 \\4y - 2y = 2y \\13 - 8 = 5 \\\\2y = 5[/tex]

Now solve for y

[tex]y = 2.5[/tex]

Now plug in 2.5 for either equation to find x ( in this case, B to make my life easier)

[tex]x + 2.5 = 4\\x = 1.5[/tex]

Which in order to trust the other equation ( for some people to trust the answer for X -_-)

[tex]2x + 4(2.5) = 13\\2x + 10 = 13\\2x = 3\\x = 1.5[/tex]

And from there, we conclude that x = 1.5 and y = 2.5

Now, we can get the same result if we eliminated y instead of x

(also this is copy and pasted from x because I am too lazy, get use to it)

In order to remove the 4 from eqaution A, we need to make the coefficient be the same for the y in the equation B.

We can multiply eqaution B by 4 in order to have the same x coefficient as eqaution A. In addition, we must make the 4 a negative (-4) in order to remove x.

[tex]-4(x + y = 4)[/tex]

Now that we have the Ys ready for the elimination, we can proceed to answer for x

[tex]2x + 4y = 13 + (-4x -4y = -16) \\\\2x - 4x = -2x \\4y - 4y = 0y \\13 - 16 = 5 \\\\-2x = -3[/tex]

Now solve for x

[tex]\\x = 1.5[/tex]

Afterward, we are then able to do the same thing to find Y as we did previously in the previous section

Was this worth my time? No

Was it worth it? Yes

Why? I did this instead of a buddy's speech, so lol its funny to me lol

Answer:

An obtuse-angled triangle is a triangle in which one of the interior angles measures more than 90° degrees.

Step-by-step explanation:

The medians are about the same.

Option C is the correct answer.

It is the middle value of the given set of numbers after arranging the given set of numbers in order.

We have,

Movie theater 1.

From the box plot given,

The median is 995.

Movie theater 2.

From the box plot given,

The median is 995.

Thus,

The median in both the box plot is the same.

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Answer:

Compound interest is that which, once generated, is added to the capital, in order to expand the calculation base on which, in turn, new interests will be generated. Thus, in short, if the interest is, for example, 5 percent, said interest will be added to the initial capital, with which that 5% generated will be increasing, since it will be calculated on an increasingly large basis.

Compound interest is very important for financial investments, as it maximizes the results of said investments, even more so when compared to simple interest, in which the interest generated is not added to the initial capital.

Answer:

=x2+−25+0

=x2+−25+0

=(x2)+(−25+0)

=x^2+−25

Aqui esta la respuesta y el procedimiento

Answer:

Step-by-step explanation:

Use SOH CAH TOA to recall how the trig functions fit on a triangle

SOH: Sin(Ф)= Opp / Hyp

CAH: Cos(Ф)= Adj / Hyp

TOA: Tan(Ф) = Opp / Adj

Tan(65) = Opp / 10

10* Tan(65) = Opp

21.445 = Opp

so the height of the tree is approx  21.4 feet ( to the nearest 10th )

158x11=1738:)))))))))))

Answer:

the car weighs 1738 kgs

Step-by-step explanation:

let the mass of car be x.

[tex] \frac{158}{x } = \frac{1}{11 } \\ \\ x = 158 \times 11 \\ \\ x \: = 1738kg[/tex]

therefore, mass of car is 1738kgs

Answer:

96 = 3 * 32, and 32 = 16 + 16, so we can say:

96 = 3(16 + 16)

96 is also equal to 2 * 48, and 48 equals 36 + 12, so we can also say:

96 = 2(36 + 12)

If you want to go with the ridiculous, you have an infinite number of combinations you could do like that.  For example:

96 = 0.15(1423987123497 - 1423987122857)

The two different expressions can be written as 2 × (30 + 18) and 4 × (13 + 11).

Distributive property is applied for numbers or algebraic expressions.

For three numbers a, b and c, distributive property states that,

a (b + c) = ab + ac

Given number is 96.

We have to write two expressions such that the expression should be the product of a number and a sum which equals 96.

We know that,

96 = 2 × 48

Using distributive property,

96 = 2 × (30 + 18)

     = (2 × 30) + (2 × 18)

     = 60 + 36

     = 96

So one expression is 2 × (30 + 18).

96 = 4 × 24

     = 4 × (13 + 11)

     = (4 × 13) + (4 × 11)

     = 52 + 44

     = 96

So the other expression is 4 × (13 + 11).

Hence the two expressions are 2 × (30 + 18) and 4 × (13 + 11).

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Answer:

3. D 4. B

Step-by-step explanation:

3.  e^2 = g^2 + f^2, answer is d

4. Let a = 3, b = 4, c = 5

2c = 10

2b = 8

2a = 6

10^2 = 8^2 + 6^2

answer is b

3. The Pythagorean theorem states the hypotenuse squared is equal to each side squared added to each other.

The answer is D. E^2 = f^2 + g^2

4.

To keep the proportion you could multiply the sides by the same numbers . The answer would be 2A, 2b, 2c

Answer:

What do u need help with I don't get what u need help with

Step-by-step explanation:

   Factoring  x2-14x+11 

The first term is,  x2  its coefficient is  1 .

The middle term is,  -14x  its coefficient is  -14 .

The last term, "the constant", is  +11 

Step-1 : Multiply the coefficient of the first term by the constant   1 • 11 = 11 

Step-2 : Find two factors of  11  whose sum equals the coefficient of the middle term, which is   -14 .

     -11   +   -1   =   -12     -1   +   -11   =   -12     1   +   11   =   12     11   +   1   =   12

Observation : No two such factors can be found

Answer:

A=-7

Step-by-step explanation:

7=35+A4

4A=-28

A=-7

Answer:

you would do 4.5 * 250 and then you would get an answer of 1125

Step-by-step explanation:

hope this helps have a great rest of your day/night

Answer:

I cant sorry

Step-by-step explanation:

Answer:

It should be A) 54

Step-by-step explanation:

32 + 14 + 8 = 54

Answer:

the formula for the volume of a sphere is

[tex] \frac{4}{3} \pi \: {r}^{3} [/tex]

r is the radius, which is half the diameter. Since the diameter of the whole sphere is 18 the radius would be half of that, which is 9. If you plug 9 into the formula you get 3052.08in.cubed. Now you must find the volume of the smaller core, the diameter of the core is 3, so the radius is 1.5 and if you plug that into the formula you get 14.13in.cubed. Since you're finding only the volume of the outside layer, you would subtract the volume of the core from the whole sphere, so 3052.08-14.13=3037.95

Your answer is 3037.95in.cubed

Answer:

the answer would be 2 and 1/2

Answer:

1.5

Step-by-step explanation:

Answer:

like segment BC is parallel to AD

Answer:

40 feet

Step-by-step explanation:

Answer: 12.35

Step-by-step explanation: Since we know that there is a total of 24.7 grams in both piles, we can find how much salt is in one by dividing 24.7 by 2.

The amount of salt in each pile will be the half amount of 24.7 grams thus 12.35 grams will be in each pile.

Arithmetic operators are four basic mathematical operations in which summation, subtraction, division, and multiplication involve.,

Division = divide any two numbers or variables called division.

For example 4/8

As per the given,

Amount of salt available = 24.7 grams.

It needed to divide into two piles.

In one piles = 24.7/2 = 12.35 grams

Hence "The amount of salt in each pile will be the half amount of 24.7 grams thus 12.35 grams will be in each pile".

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Answer:

x>13

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

Answer:

D

Step-by-step explanation: