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sdas [7]
3 years ago
12

Expand the linear expression 4(10x-4 )

Mathematics
2 answers:
Cloud [144]3 years ago
6 0

Answer:

40x- 16

Step-by-step explanation:

Because 4 times 10x is 40x and 4 times 4 is 16 so the answer is 40x-16

Yuliya22 [10]3 years ago
4 0

Answer:

40x-16

Step-by-step explanation:

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How do you evaluate f(x)=3×3-4x+5
Mrrafil [7]

-- It'll be a lot easier if you clean up the function first.
You're not changing the function.  You're just making it
easier to read and work on without mistakes.

Notice that  3x3=9 ,  so the function is  f(x) = 9 - 4x + 5

Combine like terms, and the function is  f(x) = 14 - 4x .
Much easier to work with.

-- Now, when somebody tells you to evaluate the function <em>for some number</em>,
just take their number, write it in place of 'x',and see what you've got.

Example:

             f(x) = 14 - 4x

             Evaluate  f(x)  for  x = 3.

-- Write 3 in place of 'x' in the function:    f(3) = 14 - 4(3)

--  4(3) = 12 .  So the function is             f(3) = 14 - 12

-- Finish up the subtraction :                 <em> f(3) = 2</em>

You just evaluated  f(x)  for  x=3.
Nice job !


6 0
4 years ago
The picture shows two rectangular prisms that are used for a garden bed. 10 inches 10 inches 10 inches 10 inches 25 inches 20 in
krok68 [10]

Answer:

Step-by-step explanation:

Bebéis

Bébeles

2500

4 0
3 years ago
What is the radius of this sphere?
Ray Of Light [21]

Answer:

Is there a type of equation your looking for or do you want the straight up answer?

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Suppose that y varies directly as the square of x, and that y=567 when x=9. What is y when x=4
Gwar [14]

Answer:

y  = 112

Step-by-step explanation:

If  y varies directly as the square of x

mathematically;

y ∝ x²

y = kx² where 'k' is the constant of proportionality

let u know the value of k for this equation by making k the subject of the formular from y = kx²

divide both sides by x²

k = y / x²

given that  y = 567 x = 9

k = 567/(9)²

k = 567/81

k = 7

now to get the value of  y when x = 4

from the equation conneting x, y,

y = kx²

y = 7 × (4)²

y = 7 × 16

y  = 112

6 0
3 years ago
The first quartile of a data set is 52, and the third quartile is 72. Which of these values in the data set is an outlier?
icang [17]
Given:
iq1 - 52
iq3 - 72

iq3 - iq1 = iqr
72 - 52 = 20

inner fence = minor outlier
20 * 1.5 = 30

72 + 30 = 102
52 - 30 = 22

outer fence - major outliers
20 x 3 = 60

72 + 60 = 132
50 - 60 = -10


8 0
3 years ago
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