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AveGali [126]
2 years ago
13

Is this right ? Plz help mee

Mathematics
2 answers:
sasho [114]2 years ago
6 0
6.32 is the final answer! :)
kow [346]2 years ago
4 0

The correct answer is 6.32.

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I NEED HELP PLEASE I HAVE 10 MINS LEFT ON MY FINAL
vazorg [7]
Give up bro u got the rest of the questions right
7 0
3 years ago
Read 2 more answers
How do I solve this question?
asambeis [7]
This is a perfect square trnomial
(a+b)²=a²+2ab+b²
we see that a=5x and b=2

(5x)²+2(5x)(2)+2²=0
factor
(5x+2)²=0
set equal to zero
5x+2=0
5x=-2
x=-2/5
5 0
3 years ago
A hair salon charges a fixed rate of $25.00 for a haircut and then an additional $15 for any other services. Write a function to
Taya2010 [7]
Simple,

you have a fixed rate of $25, meaning you get a haircut, it's $25

ANY other service is an extra $15

So, let's make the equation...

y=15x+25

Now, to just get a haircut it's $25.

But, let's say you get a haircut+shampoo

It'd be..

y=15(1)+25

y=$40

Another one..

You get a haircut+shampoo+highlight

y=15(3)+25

y=$70

And so on, and so forth.
3 0
3 years ago
Read 2 more answers
What are the zeros of the polynomial function f(x)=x^3-x^2-6x
aalyn [17]

Answer:

(

x

)

=

x

(

x

2

−

x

−

6

)

=

x

(

x

−

3

)

(

x

+

2

)

=

0

 

x

=

0

,

x

=

3

,

x

=

−

2

Explanation:

To find the zeros of the polynomial above first factor out the common factor then factor the remaining polynomial and set it equal to zero. Finally solve for x.

Step-by-step explanation:

6 0
3 years ago
The average cost of an IRS Form 1040 tax filing at Thetis Tax Service is $138.00. Assuming a normal distribution, if 77 percent
jek_recluse [69]

Answer:

22.97

Step-by-step explanation:

Given that the average cost of an IRS Form 1040 tax filing at Thetis Tax Service is $138.00.

Let x be the average cost an IRS Form 1040 tax filing at Thetis Tax Service

P(X is given

From std normal distribution table we find 77th percentile z value.

z=0.74

Corresponding X value = 155

i.e. 0.74=\frac{155-138}{s} where s is the std deviation

Simplify to get

Std deviation  = \frac{17}{0.74} \\=22.97

8 0
2 years ago
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