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Juli2301 [7.4K]
3 years ago
8

What is the value of x?

Mathematics
1 answer:
anzhelika [568]3 years ago
3 0
We know that 5x-3x =2x

So x(5x-3x)=x×2x

=(2x)^2

=4x^2

Which is given as 18.

X^2=18÷4

=4.5

So x=root over 4.5

Which is approximately 2.25
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2. a. The center for research in data science has a vacancy of 5 interns under a research attachment program. However, 20 studen
Yuliya22 [10]

Answer:  15504

Step-by-step explanation:

Given : The center for research in data science has a vacancy of 5 interns under a research attachment program.

Number of students applied = 20

The combination of n people taking r at a time is given by :-

C(n,r)=\dfrac{n!}{r!(n-r)!}

Since, all students fulfill the minimum CGPA criteria it means all 20 students are equally eligible.

Then , the number of ways to select a team of 5 interns from all 20 interns :-

C(20,5)=\dfrac{20!}{5!(20-5)!}\\\\=\dfrac{20\times19\times18\times17\times16\times15!}{5!15!}\\\\=15504

Hence, the number of ways to select a team of 5 interns. =  

7 0
3 years ago
Find the circumference of the circle.
DaniilM [7]

Use this formula: C=2πr. Divide 14/2 to get the radius. Substitute the radius into the formula.

The answer is 14pi units.


<u>Please mark this answer as the Brainliest if it helped! Thank you.</u>

5 0
3 years ago
Read 2 more answers
Bianca took a job that paid $150 the first week. She was guaranteed a raise of 6% each week. How much money will she make in all
ivann1987 [24]

Answer:

$225.54 (hope it help)

Step-by-step explanation:

for 2nd week

$150 for the first week and a raise of 6% each week

which means 150+6%

6% of 150 is 9 (150x0.06)

150+9=159

and it repeats

for 3rd week

6% of 159 is 9.54 (159x0.06)

159+9.54=168.54

for 4th week

6% of 168.54 is 10.1124 (168.54x0.06)

168.54+10.1124=178.652

for 5th week

6% of 178.652 is 10.71912 (178.652x0.06)

178.652+10.71912=189.37112

an easier to do it is to just do 178.652 + 6% on your calculater

and I'll skip all the way to the 8th since you know the formula

212.777390432+6%=225.544033858

225.544033858≈225.54

3 0
3 years ago
!!!!!Help!!!!
Alja [10]
The correct answer is y=-13/10x+13 as it matches the graph

Hope this helped :)
7 0
3 years ago
Of the 180 students at Martin Middle School, of the students take French. Of that group, also chose to join the French club.
Cerrena [4.2K]

Answer: is going to be 36 because all you have to do is multiply something that it multiplyed by 5 to get 180 and you'll get your answer

Step-by-step explanation:


5 0
3 years ago
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