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statuscvo [17]
2 years ago
5

Maya is y years old. Her sister is 4 years older than Maya. Write an expression in simplest form that represents the sum of the

ages of the sisters.
plz i beg asap i will give brianlist
Mathematics
2 answers:
Arturiano [62]2 years ago
7 0

Answer:

maya = y

sister = y+ 4

sum of the sisters ages= 2y+4

ser-zykov [4K]2 years ago
6 0

We are given

Mala is y years old

So, Mala =y

her sister is 4 years older than Mala

So, Sister =y+4

now, we can find sum

Sum = Mala +Sister

Sum = y +y+4

Sum = 2y+4...............Answer

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Step-by-step explanation:

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2 years ago
Divide Rs 2500 in the proportion of 1:2:3:4 in four parts. <br>​
True [87]

Answer:

250 : 500 : 750 : 1000

Step-by-step explanation:

2500 ÷ 1+2+3+4

2500 ÷ 10

250

Therefore the answer is,

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250 : 500 : 750 : 1000

7 0
2 years ago
Mathematical induction of 3k-1 ≥ 4k ( 3k = k power of 3 )
tresset_1 [31]

For making mathematical induction, we need:

  • a base case

An n_0 for which the relation holds true

  • the induction step

if its true for n_i, then, is true for n_{i+1}

<h3>base case</h3>

the relationship is not true for 1 or 2

1^3-1 = 0 < 4*1

2^3-1 = 8 -1 = 7 < 4*2 = 8

but, is true for 3

3^3-1 = 27 -1 = 26 > 4*3 = 12

<h3>induction step</h3>

lets say that the relationship is true for n, this is

n^3 -1 \ge 4 n

lets add 4 on each side, this is

n^3 -1 + 4 \ge 4 n + 4

n^3 + 3 \ge 4 (n + 1)

now

(n+1)^3 = n^3 +3 n^2 + 3 n + 1

(n+1)^3 \ge n^3 + 3 n

if n \ge 1 then 3 n \ge 3 , so

(n+1)^3 \ge n^3 + 3 n \ge n^3 + 3

(n+1)^3 \ge  n^3 + 3 \ge 4 (n + 1)

(n+1)^3  \ge 4 (n + 1)

and this is what we were looking for!

So, for any natural equal or greater than 3, the relationship is true.

4 0
3 years ago
Evaluate 3(x+4)(x+1)/(x+2)(x-2) if x = 4 a.-10 <br> B.10/3<br> C.-10/3<br> D.10
lianna [129]
We would plug in x to all of those equations. So, 3(4+4)(4+1)/(4+2)(4-2). This would be 3(8)(5)/(6)(2). Then multiply them. 3(8)(5) would be 120. (6)(2) would be 12. Then divide 120 and 12 to get 10.
6 0
2 years ago
Which of the following statements are true about the graph below? Select all that apply.
Ann [662]

Answer:

The domain of the function is the set of all real numbers; the range of the function is the set of all nonnegative real numbers; the graph has an intercept at (0, 0); and the graph is symmetric with respect to the y-axis.

Step-by-step explanation:

This is not a square root function, this is a quadratic function, which has an x².

The domain, or set of x-values, is all real numbers.  This is because all numbers work for x.

The range, or set of y-values, is the set of all nonnegative real numbers.  This is because all numbers we get for y are positive real numbers.

The graph intersect both the x- and y-axis (x-intercept and y-intercept) at (0, 0).

The graph is decreasing on the interval x<0 and increasing on the interval x>0, not the other way around.

The graph has a minimum at (0, 0), not a maximum.

The graph can be folded in half along the y-axis, so it is symmetric with respect to the y-axis.

6 0
3 years ago
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