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Alina [70]
3 years ago
8

What is the value of x? 15 20 60 180 An isosceles triangle with base angles labeled 60 degree and the other labeled open parenth

esis 3 x closed parenthesis degree.
Mathematics
1 answer:
Brums [2.3K]3 years ago
8 0
Remember that the sum of the interior angles of a triangle is always 180 degrees.  If the two base angles are 60 and 60 degrees respectively, that leaves 60 degrees for the the 3rd angle.  Let 60 degrees = 3x and find x.

x=20.

Check:  does 60 + 60 + 3(20) = 180?
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For brainiest:):):):):):):):)
mars1129 [50]

Answer:

A1) 125

A2) 47.5%

B) 30

Step-by-step explanation:

Remember 'of' in this sentence means times(*). % shows a certain number/100.

a1) 48% 'of' what number is 60?

(let unknown number be x)

48/100 *x=60

Solve the equation, and the answer is x=125

a2) what percentage 'of' 120 is 57?

(let the unknown percentage be x)

(x/100)*120=57

x=47.5%

b) 24 students= 80% of the total number of students

1%=24/80

100% of the total number of students=30

So, there are total of 30 students

8 0
2 years ago
A homeowner plans to remodel her bathroom,- and she’s chosen 1-foot-by-1 foot ceramic tiles for the floor. The bathroom is 8 fee
Cerrena [4.2K]

a.)102*88=8976 in total.

8976/12=748 tiles

b.) 4*748=2992 dollars

c.) yes it qualifies

hope this is correct, if not, sorry for the inconvenience...

8 0
3 years ago
How many lines of symmetry does the quadrilateral below have.
choli [55]

Answer:

idk

Step-by-step explanation:

idk

4 0
2 years ago
Suppose that documentation lists the average sales price of a single-family home in the metropolitan Dallas/Ft. Worth/Irving, Te
Julli [10]

Answer:

"0.0373" seems to be the appropriate solution.

Step-by-step explanation:

The given values are:

n₁ = 43

n₂ = 35

\bar{x_1}=217800

\bar{x_2}=204700

\sigma_1=30300

\sigma_2=33800

Now,

The test statistic will be:

⇒  Z=\frac{\bar{x_1}-\bar{x_2}}\sqrt{\frac{\sigma_1^2}{n_1} +\frac{\sigma_2^2}{n_2} }

On substituting the given values in the above formula, we get

⇒      =\frac{217800-204400}{\sqrt{\frac{(30300)^2}{43} +\frac{(33800)^2}{35} } }

⇒      =\frac{217800-204400}{\sqrt{\frac{918090000}{43} +\frac{1142440000}{35} } }

⇒      =\frac{13400}{7347.93}

⇒      =1.7828

then,

P-value will be:

=  P(Z>1.7828)

=  0.0373

8 0
2 years ago
Please help me with this homework
torisob [31]

Answer:

9.81 x 100,000

Step-by-step explanation:

6 0
2 years ago
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