MATHEMATICS HIGH SCHOOL

You've brought 5 cakes to the schooldance and you want to be sure there's
enough cake for everyone.
Here's a formula for this scenario:

y=xa/5

X = number of people at the dance
y = number of slices per cake
a = number of slices each person will eat

Answers

Answer 1
Answer:

Answer:

Answer: b = (X*a)/y whereas b is the number of cakes.

Step-by-step explanation:

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Which recursive formula can be used to generate the sequence shown, where f(1) = 5 and n > 1?5,–1, –7, –13, –19, ...
Express 9-y^2 as the product of two binomial factors.
Which of the following systems of nonlinear inequalities is graphed below?
I'm justing starting geometry honors, and I would like to know how to pass this class?! Is it easy or hard? HELP!!
How do u solve 4(y-3)+9-3y

What is (f+g) (x)???

Answers

Answer:

A.

Step-by-step explanation:

To get to the answer, add both f(x) and g(x) together. This would be (2x^2 +3x -4) + (-4x^2 + 5x - 8). Remember that adding a negative number is the same as subtracting the positive of that number, for example, 3 + (-4) is the same as 3 - 4.

You owe some friends $25 and pay them back $18. Which number sentence shows this situation?25 + 18
-25 + 18
-18 + 25
-25 + (-18)

Answers

If you would like to know which number sentence shows the following situation, you can find this like this: 

$25 - $18 = $7

You still owe your friends $7.
The correct result would be 25 - 18 = - 18 + 25.

Answer:

-18 + 25

Step-by-step explanation:

Use the law of cosines to find the value of cos. round your answer to two decimal places

Answers

Answer:

A. 0.21

Step-by-step explanation:

We have been given a triangle and we are asked to find the value of cos using law of cosines.  

Law of cosines:

c^2=a^2+b^2-2ab*cos(C)

Upon substituting our given values in above formula we will get,

10.9^2=5.8^2+10.5^2-2*5.8*10.5*cos(\theta)

118.81=33.64+110.25-121.8*cos(\theta)

118.81=143.89-121.8*cos(\theta)

118.81-143.89=143.89-143.89-121.8*cos(\theta)

-25.08=-121.8*cos(\theta)

(-25.08)/(-121.8)=(-121.8*cos(\theta))/(-121.8)

0.2059113300492611=cos(\theta)

Upon rounding our answer to nearest hundredth we will get,

cos(\theta)\approx 0.21

Therefore, the value of cos(\theta) is 0.21 and option A is the correct choice.
The law of cosine says that

10.9^2=5.8^2+10.5^2-2*10.5*5.8\cos\theta\implies\cos\theta\approx0.205911\approx0.21

How to write twice the difference of z and 12 equal 63

Answers

Answer:     2(z - 12) = 63

Step-by-step explanation:

Our task is to write the following:

  • twice the difference of z and 12 equals 63

So first, the difference of z and 12 means we're subtracting z and 12, and it's written this way: \bf{z-12}

Next, twice that difference is: \bf{2(z-12)}. The reason why we need to put parentheses is because that way, 2 is multiplied by both z and -12.

This equals 63:    \bf{2(z-12)=63}

Answer:

2(z - 12) = 63

Step-by-step explanation:

Twice --> 2*

Difference of z and 12 --> (z-12)

Equals 63 --> = 63

If you combine...

2*(z-12) = 63

You can remove the * sign, because there is a bracket next.

2(z - 12) = 63

If this helped, please consider picking this answer as the Brainliest Answer. Thank you!

4v = 20
Help please

Answers

Answer:

v=5

Step-by-step explanation:

you are trying to make 4v into v right ?

so simply divide it by 4 - the same if it was 4a or 7a or 9k, always start by dividing by the number

then you need to balance the two sides - so whatever number you divide the letter by (which is the 4 in this case) , you do the same with the other side , so whatever number is after the equal sign , divide it by 4

PART ONE                                      ↓ 4v  =   20  

           DIVIDE BY 4                       →  v   =    20

PART TWO                                          v   =   20 ↓

                                                            v   =     5 ←           DIVIDE BY 4

@HelixBlades
Thank you!!!1

Answers

1st attachment
Part A,
I would assume the triangles are similar so
6y=4y+18
minus 4y both sides
2y=18
divide 2
y=9

Part B
sub for y
6(9)=54
the angle is 54





2nd attachment
4. I actually forgot proofs, let me think
dunno this one
I would say cory is wrong



3rd attachment
5. since 8≠9, it is not a bisector of any sort nor is it equidistant from T and R
answer is point A is not on a bisector


4th attachment
it is not perpendicular in any way
if we assume that TXA=RXA, then the first and last options are right


5th attachment
7.
those 2 triangles are equal because of Side-angle-side
they have to be equal 2x=3x-5
minus 2x both sides
0=x-5
add 5
5=x
x=5

8.
it would be isocelseese
because the 2 sides are equal
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