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9966 [12]
3 years ago
15

Is 7.38 a mixed decimal

Mathematics
2 answers:
Verizon [17]3 years ago
7 0
Yes, all mixed decimal has a decimal with an integer.
True [87]3 years ago
6 0
7.38 is the mixed decimal tho.

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Please help me this is really confusing here's the question
LuckyWell [14K]

Answer:

I'm pretty sure its D. 11.5

3 0
3 years ago
Y=2 when x=8<br> &amp;<br> y=-3 when x=1
Natasha_Volkova [10]
Y=k/x is inverse

y=2
x=8
2=k/8
times 8
16=k
the equation is
y=16/x

second

y=k/x
-3=k/1
-3=k

the equation is y=-3/x


they are
for y=2, x=8 it is y=16/x
and  for y-3, x=1 it is y=-3/x
6 0
3 years ago
John and Tim are looking at the equation the square root of the quantity of 3 times x minus 4 equals square root of x . John say
IgorC [24]
The equation is 
3x - 4 = sqrt(x)
where 'sqrt' is shorthand for 'square root'

Let's solve the equation. To do so, we square both sides. Then we get everything to one side
3x - 4 = sqrt(x)
(3x - 4)^2 = (sqrt(x))^2
9x^2 - 24x + 16 = x
9x^2 - 24x + 16-x = x-x
9x^2 - 25x + 16 = 0

Now use the quadratic formula. See the attached image for those steps.

After using the quadratic formula the two possible solutions are x = 1 or x = 16/9

We need to check each possible solution to see if it is extraneous or not.

----------------------------

Checking x = 1

3x - 4 = sqrt(x)
3*1 - 4 = sqrt(1)
3 - 4 = 1
-1 = 1

The final equation is false, so x = 1 is not a true solution

x = 1 is extraneous. 

So far, John is correct; however, we need to see the nature of the possible solution x = 16/9

So let's check it
----------------------------

Checking x = 16/9

3x - 4 = sqrt(x)
3*(16/9) - 4 = sqrt(16/9)
48/9 - 4 = 4/3
16/3 - 4 = 4/3
16/3 - 12/3 = 4/3
(16 - 12)/3 = 4/3
4/3 = 4/3

The last equation is true, so x = 16/9 is a proper solution.

This solution is considered non-extraneous. So Tim is also correct
----------------------------

They are both correct because there are two possible solutions. One of which is extraneous (x = 1) and the other is non-extraneous (the fraction x = 16/9)

3 0
3 years ago
Solve for the variable <br> 10 + 25a = 75<br><br><br><br><br><br> Please help
Vesnalui [34]

Answer:

a = 2.6

Step-by-step explanation:

10 + 25a = 75

- 10.             - 10

25a = 65

÷25.     ÷25

a = 2.6

HOPE THIS HELPS

PLZZ MARK BRAINLIEST

8 0
3 years ago
Read 2 more answers
Write an equation in point-slow form for the line through the given point with the given slope.
timofeeve [1]
It's a because the form is y-y1=m(x-x1) and of you put the given information in it will be y+1=-(x+10)
5 0
3 years ago
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