1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nata [24]
1 year ago
12

7. Find x if the perimeter of the equilateral triangle is 77. Equation: Solution: Round to the nearest hundredth. 6.5X minus 1​

Mathematics
1 answer:
stealth61 [152]1 year ago
4 0

If the perimeter of equilateral triangle is 77 and the equation showing the perimeter is 6.5X-1 then the value of X is equal to 12.

Given that the perimeter of equilateral triangle is 77 and the expression showing the perimeter is 6.5X-1.

We are required to find the value of X which is used in the expression.

Expression is combination of numbers, fraction, coefficients, indeterminants, determinants, which are mostly not found in equal to form.

Perimeter which is given is 77 and 6.5X-1.

6.5X-1=77

6.5X=77+1

6.5X=78

X=78/6.5

X=12

Hence if the perimeter of equilateral triangle is 77 and the expression showing the perimeter is 6.5X-1 then the value of X is equal to 12.

Learn more about equation at brainly.com/question/2972832

#SPJ9

You might be interested in
What is the volume of this prism? ​
marin [14]

Answer:

160 u^3

Step-by-step explanation:

For the sake of ease, I will split this prism into 2 prisms. One prism will be 2x4x5 while the second one will be 4x5x6. The volume of the prism will be the sum of the volume of both prisms.

Prism A: Volume would be lwh or 2*4*5=40

Prism B: Volume would also be lwh which is 4*5*6=120

40+120=160

The volume is 160 units^3

Hope this is correct and helps!

7 0
3 years ago
the sum of two numbers is 5 the larger number is 14 more than twice the same number what is the larger number
tatyana61 [14]

Answer:

L=8

Step-by-step explanation:

S=smaller number

L=larger number

S+L=5 : S=5-L

L=14+2S

substitute for S:

L=14+2(5-L)

solve for L:

L=14+10-2L

3L=24

L=8

8 0
3 years ago
Read 2 more answers
If A ABC-A DEF, find mZA.<br> O 67<br> O 54<br> 59<br> O<br> 69
marysya [2.9K]

Answer:

54

Step-by-step explanation:

<h2>√</h2>
8 0
2 years ago
A phycologist is interested in determining the proportion of algae samples from a local rivulet that belong to a particular phyl
LuckyWell [14K]

Answer:

A sample of 16577 is required.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the z-score that has a p-value of 1 - \frac{\alpha}{2}.

The margin of error is of:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

99% confidence level

So \alpha = 0.01, z is the value of Z that has a p-value of 1 - \frac{0.01}{2} = 0.995, so Z = 2.575.

She wants to estimate the proportion using a 99% confidence interval with a margin of error of at most 0.01. How large a sample size would be required?

We have no estimation for the proportion, and thus we use \pi = 0.5, which is when the largest sample size will be needed.

The sample size is n for which M = 0.01. So

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

0.01 = 2.575\sqrt{\frac{0.5*0.5}{n}}

0.01\sqrt{n} = 2.575*0.5

\sqrt{n} = \frac{2.575*0.5}{0.01}

(\sqrt{n})^2 = (\frac{2.575*0.5}{0.01})^2

n = 16576.6

Rounding up:

A sample of 16577 is required.

8 0
2 years ago
if you were giving advice to a freind, what would you say are the most important things to know about investing 4 sentences
melomori [17]

Answer:

Step-by-step explanation:

Never invest money that you cant afford to lose. Your first goal should always be to avoid major losses. Dont get greedy, be patient, seek the advice of qualified well - regarded advisors, and keep your costs low. Research is a part of an investor's due diligence...so whether you work with investment professionals or on your own, it is wise to do your homework. Dont jump in blind.

5 0
3 years ago
Other questions:
  • Use a calculator to determine the pattern of attractors for the equation y =kx(1-x) for the given value of k and the given initi
    7·1 answer
  • Line segment ST is congruent to which line segment?<br> SK<br> KU<br> UT<br> TK
    15·2 answers
  • The point P(x, y) is on the terminal ray of angle theta. If theta is between pi and 3pi/2 radians and csc theta equals -5/2 what
    7·1 answer
  • George deposits $3,500 at 3.25% interest compounded monthly. What will his ending balance be after 5 years?
    15·1 answer
  • Mario and Luigi were selling coupon books for the Video game club fundraiser. Apparently, Mario is a much better salesperson, be
    6·1 answer
  • Could someone please give me the answer? The subject is math and its Pre- Algebra
    12·1 answer
  • Help me please I suck at this
    6·2 answers
  • Using a factor tree, find all prime factors of 210
    7·1 answer
  • Suzanne’s math teacher stayed after school for one hour to help students with their homework. Suzanne stayed for 5/12 of the hou
    8·1 answer
  • If x &lt; 0, y &gt; 0, and x + y = z, which statement about z is true?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!