MATHEMATICS HIGH SCHOOL

Is anyone can help me????

Answers

Answer 1

Answer:

216c³

Step-by-step explanation:

8 yellow = 2³ (sides = 2 cubes)

Green added to cover yellow, making it (2+2)³ = 4³

Red added to cover green, making it (4+2)³ = 6³

Total cubes = 6³ = 216 cubes

Each cube has a volume = c³

Volume of the final cube = 216c³ units³

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Enter the correct value so that each expression is a perfect-square trinomial.x2 – 10x +_____

Answers

Answer:

A = 25 so that the expression $x^2-10x+A$ is a perfect-square trinomial.

Step-by-step explanation:

Given : expression $x^2-10x+A$

We have to find the value of A so that each expression is a perfect-square trinomial.

perfect-square is the term in the form of $(a+b)^2 \ or\ (a-b)^2$

Since , we know the algebraic identity,

$(a+b)^2=a^2+b^2+2ab\n\n (a-b)^2=a^2+b^2-2ab$

Given expression $x^2-10x+A$ is of the form of $(a-b)^2=a^2+b^2-2ab$

Thus, comparing , we get,

a= x ,

-2ab = -10x

⇒ b = 5

Thus adding b² term to get perfect-square trinomial.

b² = 25

Thus, the perfect-square trinomial becomes $x^2-10x+25=(x-5)^2$

So, A = 25

the answer is x2-10x+25 because that is half of -10 (5) squared

7. On Monday 2∕3
of the team practiced, Tuesday 7
∕8
, Wednesday 1
∕2
, and Thursday 3
∕4
. On which day
were the most team members present at practice?
A. Thursday
B. Wednesday
C. Tuesday
D. Monday

Answers

The day where the most team members were present at practice is:

Option C: Tuesday

How to find the greatest fraction?

There are different types of fractions such as:

Proper fraction

Mixed fraction

Improper fraction

We are given the fractions to represent the fraction of team members that practiced

Monday = 2/3 = 0.667

Tuesday = 7/8 = 0.875
Wednesday = 1/2 = 0.5

Thursday = 3/4 = 0.75

The greatest fraction here is 7/8 which falls on Tuesday.

The day where the most team members were present at practice is:

Option C: Tuesday

Read more about Greatest Fraction at: brainly.com/question/3175225

#SPJ6

Well, 2/3 is .66%, 1/2 is .5%, 3/4 is .75%, and 7/8 is .875%. that being said, 7/8 is closest to one, so it is the largest fraction which would mean your answer is c.) Tuesday.

What term describes when you identify and separate time series data into components?

Answers

Answer:

The answer would be Decomposition

Step-by-step explanation:

Decomposition is the process that is used to identify and separate the time series data into components of demand.

Which two numbers add up to 6 and muliply to -126

Answers

xy=-126
x+y=6
minus x

y=6-x
sub
x(6-x)=-126
6x-x^2=-126
minus (6x-x^2) both sides
0=x^2-6x-126

in form
ax^2+bx+c=0
x= $\frac{ -b+/-\sqrt{b^(2)-4ac} }{2a}$

a=1
b=-6
c=-126

x= $\frac{ -(-6)+/-\sqrt{(-6)^(2)-4(1)(-126)} }{2(1)}$
x= $( 6+/-√(36+504) )/(2)$
x= $( 6+/-√(540) )/(2)$
x= $( 6+/-6√(150) )/(2)$
x= $3+/-3√(150)$

the numbers are
$3+3√(150)$ and $3-3√(150)$

The graph of the equation ax+3y=48 passes through the point (-3, 14). what value of A accurately completes the equation

Answers

Answer:

The value of a = -2

Step-by-step explanation:

Given the equation: ax + 3y =48 .....[1] and it is passes through the point (-3, 14).

To find the value of a which completes the equation;

Substitute the point (-3 , 14) i.e, x = -3 and y = 14 in [1] to solve for a;

$a(-3) + 3(14) = 48$

-3a + 42 = 48

Subtract 42 from both sides we get;

-3a + 42 -42 =48 -42

Simplify:

-3a = 6

Divide both sides by -3 we get;

a = -2

Substitute this value in [1] to completes the equation:

-2x + 3y =48

therefore, the value of a = -2 accurately completes the equation -2x + 3y =48

try a=-2 (negative 2)

working attached

Tim says -40°f is equal to -40°c. explain why this is true.

Answers

Let C = degrees Celsius and F = degrees Fahrenheit $C = (F - 32) * (5)/(9)\n\n$ $= (-40 - 32) * (5)/(9)\n\n$ $= (-72) * (5)/(9)\n\n$ $= -(360)/(9) \n\n$ $= -40$

$^(\circ)C=(^(\circ)F-32)\cdot(5)/(9)\n\n^(\circ)C=(-40-32)\cdot(5)/(9)\n^(\circ)C=-72\cdot(5)/(9)\n^(\circ)C=-8\cdot5\n^(\circ)C=-40$

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