Brain test! (Part 3) Answer the question below:

Answer:

According to me it should be, -2x² + 12x - 7

Step-by-step explanation:

you gotta multiply "-" between two equations by the second equation which simplifies to (x² + 5x - 6) + (-3x² + 7x - 1). Now if the two equations are simplified together:

⇒ x²- 3x² = -2x²

⇒ 5x + 7x = 12x

⇒ (-6) + (-1) = -7

Putting it all in one equation will result in: -2x² + 12x - 7

Hope this helps, good luck!

Answer:

Step-by-step explanation:

A term that does not include a variable.

Answer: the answer is that each 80 calories is worth 40 daily calories

Step-by-step explanation:

To be able to pal the calories consumption, one can total the amount of people together (5people x 5groups = 25) and then begin to share the food using 5600 calories per day.

This is known to be a form of a measurement, as it is the the amount of energy that is often given off when the human body breaks down food.

Since there are 25 people that needs 5600 calories per day.

The numbers of crate were not given so answer will be limited to 2 crate.

2 crate has:

From the table, having one single biscuit, pemmican and butter and cocoa gives 100% of the daily calories needs.

Therefore each person should have a single biscuit, pemmican and butter and cocoa.

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Answer:

√95 cm

Step-by-step explanation:

To solve, you need to use the pythagorean theorem, or a^2 + b^2 = c^2

The hypotenuse is the c and let one leg be b. You can write:

a^2 + 7^2 = 12^2

a^2 + 49 = 144

Now, you need to solve for a:

a^2 = 144 - 49

a^2 = 95

a = √95 cm, or about 9.75cm

Answer:

1.05

Step-by-step explanation:

If you really look at it and do the math the late feels towards the school library contrasts the number of days where the total cost is. Compare it enough and youll get 1.05

Answer:

\(\sqrt{149\\ \\\)

However, that's the length of "c" and you're looking to drag it in. So,o you drag in 10^2+7^2=a^2.

Then, as shown by the first picture attatched, you can drag in the one with "c" and "a" with the five shown.

Step-by-step explanation:

To find "c" the diagonal, as explained, you need to use the theorem twice. You can first use it by finding "a", as you already have "b". To find a, you do 10^2+7^2=a^2, the hypotenuse.

100+49=149.

So, a is root 149.

a^2+b^2=c^2 so

149+25=174

a) The length of a, a² = 10² + 7²

b) The fourth Figure will be Drag in Last column.

The Pythagoras theorem states that the square of a triangle's hypotenuse is equal to the sum of its other two sides' squares.

Given:

As From the Figure, a² = 10² + 7²

a² = 100 + 49

a² = 149

a= √149

To find c the diagonal,

a² = 10²+ 7²

a² = 149

a = √149

Now, a²+b²=c²

The fourth Figure will be Drag in Last column.

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Answer:

576 ft²

Step-by-step explanation:

Large rectangle:

21·36=756

Smaller rectangle:

15·12=180

Find leftover area:

756-180

=576 ft²

Hope this helps! :)

Answer:

The area that is left for development in the field outside the playground is 576 ft².

Step-by-step explanation:

To calculate the area left for development in the field outside the playground, we need to subtract the area of the smaller rectangle from the area of the larger rectangle.

The area of a rectangle is the product of its width and length:

\(\boxed{\sf Area\;of\;a\;rectangle=width \times length}\)

The dimensions of the larger rectangle are:

The dimensions of the smaller rectangle are:

Therefore, the development area can be calculated as follows:

\(\begin{aligned}\sf Development \;area&=\sf Area_{large\;rectangle}-Area_{small\;rectangle}\\\\&=(21 \times 36)-(15 \times 12)\\\\&=756-180\\\\&=576\; \sf ft^2\end{aligned}\)

Therefore, the area that is left for development in the field outside the playground is 576 ft².

Answer as a fraction = 18/25

Answer in decimal form = 0.72

Answer in percent form = 72%

=========================================================

Explanation:

We have A = 6+6+1 = 13 people who rent their home (add the values along the bottom row). There are B = 5+6 = 11 people who drive an SUV (add up the values in the SUV column). There are A+B = 13+11 = 24 people who either rent their home or drive an SUV. Keep in mind that 6 people have been double counted if we just go with A+B without adjustment. These 6 people both rent their home and drive an SUV. To correct for the double-count, we subtract off 6 from A+B to get A+B-6 = 24-6 = 18.

So there are 18 people who rent their home, drive an SUV, or both.

This is out of 4+5+3+6+6+1 = 25 people surveyed total.

The probability of selecting someone who rents their home or drives an SUV is 18/25. In decimal form that is equivalent to 0.72 which converts to 72%

Answer:

5

Step-by-step explanation:

it has the least amount of draws

Step-by-step explanation:

(2x-3)² - (4x+1)(x − 4)

4x² - 12x + 9 - 4x² - 16x + x - 4

group like terms

4x² - 4x² - 12x+x+9-4

-11x + 5

Answer:

x=2

Step-by-step explanation:

Step-by-step explanation:

-7x+26=12

--------------------------

subtract 26 from both sides

-7x+26-26=12-26

----------------------------------------------

simplify

-7x=-14

------------------

divide both sides by -7

-7/-7 = -14/-7

----------------------------------

simplify once more

x=2

Answer:

the equation is f(x)4x+2

if the input is a generic number n, the output will be 4n+2

Step-by-step explanation:

Answer:

Option B and C

Step-by-step explanation:

\(5^{-6}\) x \(5^{4}\) / \(5^{-4}\)

\(5^{-2}\) / \(5^{-4}\)  =  \(5^{2}\)

 \(5^{2}\) = 25

Option B : 25

and C :  \(5^{2}\)

I hope im right!!

Answer:

20!

Step-by-step explanation:

As per the given data, Alicia can accommodate 17 more people without reserving another bus.

A field trip is a type of educational excursion that is usually organized by schools, colleges, or other educational institutions.

Alicia has already reserved 3 buses since 3 x 36 = 108 people can fit on those buses.

There are 127 - 108 = 19 people who have not been accounted for on those buses.

Since each bus holds 36 people and there are 19 people who still need to be accounted for, Alicia can still add 36 - 19 = 17 more people before she needs to reserve another bus.

Therefore, Alicia can still sign up 17 more people before needing to reserve another bus.

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Answer:

8 cm

Step-by-step explanation:

\( \large{ \tt{❃ \: STEP - BY - STEP \: EXPLANATION}} : \)

\( \large{ \tt{❁ \: LET'S\: START}} : \)

\( \boxed {\large{ \bf {\: ♕ \: {h}^{2} = {p}^{2} + {b}^{2} }}}\)

- Plug the known values and then simplify !

\( \large{ \tt{ ↦ \: {10}^{2} = {6}^{2} + {b}^{2} }}\)

\( \large{ \tt{↦100 = 36 + {b}^{2} }}\)

\( \large{ \tt{↦36 + {b}^{2} = 100 }}\)

\( \large{ \tt{ ↦{b}^{2} = 100 - 36}}\)

\( \large{ \tt{↦ {b}^{2} = 64}}\)

\( \large{ \tt{↦b = \sqrt{64}}} \)

\( \boxed{ \large{ \tt{↦ \: b = 8 \: cm}}}\)

✺ Raise you hand and clear your doubts , the bullies at the last benches and the nerds at the first benches are not going to write your exam , it doesn't matter what class will think about you!

♡ Hope I helped! ツ

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Answer:

1/125—> 5tothepowerof-3

-1/125> -5tothepowerof-3

-125>(-5tothepowerof-3) tothepowerof-1

1> (-5tothepowerof-3)tothepowerof0

Step-by-step explanation:

Answer:

-20

Step-by-step explanation:

multiply 5*-2*-1*2

Answer:ps=3.4

Step-by-step explanation:

Answer:

Answer:ps=3.4

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

Just multiply everything/the coordinate points by 0.25 lol ( I recommend desmos dot com if you want to visualize graphs)

Dilation of 0.25 equals:

Y(-0.5, -0.25)

X(0, 0.5)

W(0.5, 0.5)

Answer:

Sure, I'll explain the cosine rule and sine rule in simple terms:

The cosine rule (also known as the law of cosines) is used to find the length of a side or the measure of an angle in a triangle given the lengths of the other sides and the angle between those sides. It states that c^2 = a^2 + b^2 - 2ab cos(C), where c is the length of the side opposite angle C, and a and b are the lengths of the other two sides.

Here's an example of how to use the cosine

Suppose we have a triangle with sides a=6, b=8, and an angle between them c=45 degrees. We want to find the length of the remaining side of the triangle, side a.

Using the cosine rule:

a^2 = b^2 + c^2 - 2bc * cosA

where A is the angle opposite side a, we can plug in our values and solve for a:

a^2 = 8^2 + 6^2 - 2(8)(6) * cos(45)

a^2 = 64 + 36 - 96 * 0.707

a^2 = 10.56

a = sqrt(10.56)

a = 3.25 (rounded to two decimal places)

Therefore, the length of side a is approximately 3.25 units.

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:Yikes. Just so we’re all clear—this is not a real SAT question.

So far, Adam’s record is 6 wins/30 games. If he plays x more games, his record will be:

image

You find the minimum x such that the fraction is greater than ½, which would mean he won more than ½ of his games.

Let’s do some math!

image

So if he plays 54 more games, and wins 2/3 of them, he’ll have the same number of wins as losses. Check on that to make sure: He’ll have played 30 + 54 = 84 games, and won 6 + (2/3)54 = 42 of them. Yep, that works.

Now here is where it gets tricky (and why this question is not SAT-caliber). Remember that he’s losing 1/3 of his games. If his 52nd, 53rd, and 54th additional games were win, win, loss, then he would have had, very briefly, a winning record after his 53rd additional game.

His 55th additional game is another chance at a winning record. If he loses that game, then he’ll win the next two, and have a winning record for sure by the 57th additional game. From there, if he continues winning 2/3 of his games, he’ll have a winning record forever.

Answer:

-752

Step-by-step explanation:

16 x 2 x (-24) = -768

-768 + 16 = -752

Answer:

84

Step-by-step explanation:

7(9+3) you multiply 7 to both numbers like this

63+21 and then you can simplify

84

If you need the other 3 done just comment on this question to tell me

Also please mark brainliest

Answer:

Step-by-step explanation:

1.84

2.32

3.30

4.88

1.

84 because PEMDAS(parenthesis/Exponents/Multiply/Divide/Add/Subtact) says you do parenthesis first. So you add 9 and 3 to get 12. The you do 12*7 to get 84.

Answer:

12x12 12x6 H = 46cm

Step-by-step explanation:

took quiz

Answer:

46 cm

Step-by-step explanation:

I learned this formula in math last year