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professor190 [17]
3 years ago
11

the mean of 10 students is 16 . When a student is added, the mean becomes 18. Find the age of the student added​

Mathematics
1 answer:
MakcuM [25]3 years ago
5 0

Answer:

Step-by-step explanation:

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I WILL GIVE BRAINLIEST IF CORRECT
sertanlavr [38]

Answer:

Vertical compression

Step-by-step explanation:

g(x)=0.25f(x), if you substitute for f(x) you get B

5 0
3 years ago
On a coordinate plane, a line goes through (negative 4, 2) and (negative 2, negative 4). Which are solutions of the linear equat
hammer [34]

Answer:

Y = (-3) *X - 10

solution for Y =0 ---> X = -10/3

Step-by-step explanation:

Two points:

(Y0 ; X0) = (-4 ; 2)  

(Y1 ; X1) = (-2 ; -4)

There is only one line which pass for both of them, his general expresion is:

y = a*x + b --- (1)

Calculating "a": is the pending of the line.

a = \frac{Y1 - Y0}{X1 - X0} = \frac{(-4) - (2)}{-2 - (-4)} =\frac{-6}{2} = -3

Calculating "b":

Since every point who belongs to the line satisfied the (1) expresion, we can use it for the point (Y1 ; X1) :

Y0 = (-3)*X0 + b  ---> 2 = (-3)*(-4) + b ---> b = -10

<u>Final expresion</u>

Replacing in (1): Y = (-3) *X - 10

Solutions: Y = (-3) *X - 10 = 0 --- > X = -\frac{10}{3}

3 0
3 years ago
Read 2 more answers
Keeping the properties of exponents in mind, to what power must you raise the expression 7 1/2 to get 7 as a result
zhenek [66]
For this case we have the following expression:
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 Clearing x we have: 
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you must raise the expression to 2
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4 years ago
Which description is correct for the polynomial 2x² + 2?
Blizzard [7]

Answer:

The polynomial is a quadratic binomial

Step-by-step explanation:

we have

2x^{2}+2

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<u>By the number of terms</u>

we know that

A polynomial with two terms is a binomial

<u>By the Degree of a Polynomial</u>

we know that

The degree of a polynomial is calculated by finding the largest exponent in the polynomial

In the given problem the largest exponent is 2

so

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therefore

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3 years ago
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Yes it does shegehehehavueheuwbuehwhwb
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