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Sophie [7]
3 years ago
11

Factorising what is 9+12y+123r

Mathematics
2 answers:
marshall27 [118]3 years ago
8 0

Answer:

3(3+4y+41r)

Step-by-step explanation:

Im pretty sure, usually this stuff is hard for me but this one wasnt.

guajiro [1.7K]3 years ago
4 0

Answer:

Step-by-step explanation:

3(3+4y+41r)

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What is the mean and standard deviation of the adult values in the table below?
Mekhanik [1.2K]

Answer: Mean = 9, Standard Deviation = 2.6

0 0
4 years ago
Let x and y represent the tens digit and ones digit of a two digit number, respectively. The sum of the digirs of a two digit nu
gayaneshka [121]

Answer:

The Original Number is 36

Step-by-step explanation:

Given:

y is the number in units place

x is the number in tens place

Original Number = 10x+y

x+y=9 is equation 1

Now after interchanging the digits

New number = 10y+x

New Number = 27 + Original Number

Substituting Valus in above equation we get.

10y+x=27+10x+y\\10y-y+x-10x=27\\9y-9x=27\\9(y-x)=27\\y-x=\frac{27}{9}\\

y-x=3 let this be equation 2

Adding equation 1 and 2 we get

(x+y=9)+(y-x=3)\\2y=12\\y=\frac{12}{2}\\y= 6\\

Substituting value of y in equation 1 we get

x+y=9\\x+6=9\\x=9-6\\x=3

x=3 and y=6

Original Number = 10x+y=10\times3+6=30+6=36

4 0
3 years ago
A unicycle travels 50 feet. If the radius of the tire is 24 INCHES, how many times does the tire rotate? A) about 8 times B) abo
Pie
The total distance traveled by cycle = 50 * 12 = 600 inch
1 complete rotation measures = 2 * 3.14 * 24 = 150.72 inch

Total rotation = 600 / 150.72
= approx. 4

In short, Your Answer would be Option C

Hope this helps!
6 0
3 years ago
Read 2 more answers
Two right triangles are graphed on a coordinate plane. One triangle has a vertical side of 4 and a horizontal side of 10. The ot
zvonat [6]
For the hypotenuses to be able to lie on the same line:

The tan of angle in both should be the same. That is the two triangles should be similar.

For the first triangle  tanθ  = 4/10 = 2/5

For the second triangle,  tanθ  = 12/30 = 6/15 = 2/5

Since both angles in the triangle are the same, hence, the hypotenuses of the two triangles could lie along the same line.
8 0
3 years ago
If the solutions to a polynomial equation are -5, 0, and 1, which of the following could be the expanded form of the polynomial
AVprozaik [17]

Answer:

The polynomial would be f(x) = x^3 + 4x^2 - 5x

Step-by-step explanation:

In order to find this, start with the equations that x is equal to each of the solutions. Then solve each of those expressions for 0.

-5 = x

0 = x + 5

1 = x

0 = x - 1

0 = x

Now put each of the terms that you have in parenthesis and multiply them all together.

f(x) = (x)(x + 5)(x - 1)

f(x) = (x)(x^2 + 4x - 5)

f(x) = x^3 + 4x^2 - 5x

8 0
3 years ago
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