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Darina [25.2K]
2 years ago
7

0,2(7) = ? please help me

Mathematics
2 answers:
WARRIOR [948]2 years ago
8 0
Assuming you meant to put 0.2 instead of 0,2, 0.2(7) = 1.4
OLEGan [10]2 years ago
4 0
Are you sure that’s the problem?
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-7(a - 3) = 11 - 7a<br> what’s the answer
natali 33 [55]

Answer:

the statement is false there is no solution

Step-by-step explanation:

step 1       -7(a-3)=11-7a

step 2      -7a+21=11-7a

step 3      cancel out the -7a's

step 4       you are left with 21=11 which does not work so it is false

8 0
3 years ago
Turn this recurring decimal, 0.545545545, to a fraction in its lowest form.
professor190 [17]
54554/99999. I think I am right but sorry if I am wrong. 
8 0
2 years ago
Which of the following represents the zeros of f(x) = x3 − 11x2 + 38x − 40?
Delvig [45]
The answer is <span>5, 4, 2
</span>
Among all choices we have 5, so
x = 5
x - 5 = 0
Let's divide the expression by (x - 5) using the long division:
                          x³ - 11x² + 38x - 40
(x - 5)  * x² =      x³ - 5x²                   Subtract
____________________________
                              -6x² + 38x - 40
   (x - 5) * (-6x) =    -6x² + 30x          Subtract
____________________________
                                           8x - 40
                    (x - 5) * 8 =     8x - 40   Sutract
____________________________
                                              0

Thus: x³ - 11x² + 38x - 40 = (x - 5)(x² - 6x + 8)

Now, let's simplify x² - 6x + 8.

x² - 6x + 8 = x² - 2x - 4x + 8 =
                  = x² - 2*x - (4*x - 4*2) = 
                  = x(x - 2) - 4(x - 2) =
                  = (x - 4)(x - 2)

Hence:
x³ - 11x² + 38x - 40 = (x - 5)(x - 4)(x - 2)
To calculate zero:
x³ - 11x² + 38x - 40 = 0
(x - 5)(x - 4)(x - 2) = 0
x - 5 = 0            or             x - 4 = 0              or      x - 2 = 0
x = 5                 or              x = 4                   or      x = 2
3 0
3 years ago
What’s The coefficient in the expression 7x+ 14
nydimaria [60]

Answer:

7 is the coefficient.

3 0
2 years ago
If the ratio between the radii of two spheres is 3:7, what is the ratio of
ad-work [718]

Answer:

A

Step-by-step explanation:

Ratio of volume is ratio of the radius raised to the power 3.

7 0
2 years ago
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