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Salsk061 [2.6K]
3 years ago
8

Triangle ABC is isosceles with AB = AC.

Mathematics
1 answer:
SVEN [57.7K]3 years ago
8 0

Answer:

area of traingle=1/2(sin130×AB×AC)

85×3=sin130×AB×AB

255=76×AB²

255/76=AB²

√332.88=AB

AB=18.24

AC=18.24

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How you subtract with unlike Denominators
Oxana [17]

Step-by-step explanation:

To subtract, you must first:

Find like denominators.

  • Note: What you do to the denominator, you must do to the numerator.
  • If there is an equal sign, and there are fractions on both side, what you do to one side, you do to the other.

Simplify:

  • Combine like terms
  • Solve

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

Take for example, a question such as:

7 3/10 - 9/20

First, change the mixed fraction into improper fraction:

7 = (7/1) * (10/10) = 70/10 + 3/10 = 73/10

Find common denominators. Remember that what you do to the denominator, you do to the numerator. Multiply 2 to both numerator and denominator:

(73/10)(2/2) = (146/20)

Simplify. Combine like terms

146/20 - 9/20 = 137/20

Simplify.

137/20 = 6 17/20

6 17/20 would be your answer for the example question.

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

~

8 0
3 years ago
Read 2 more answers
Add 7 2/3+4/7 reduce to the lowest terms
viva [34]

\huge\text{Hey there!}

\huge\textbf{Equation:}

\mathbf{7 \dfrac{2}{3} + \dfrac{4}{7}}

\huge\textbf{Solving:}

\mathbf{7 \dfrac{2}{3} + \dfrac{4}{7}}

\mathbf{= \dfrac{7\times3+2}{3} + \dfrac{4}{7}}

\mathbf{= \dfrac{21 + 2}{3} + \dfrac{4}{7}}

\mathbf{= \dfrac{23}{3} + \dfrac{4}{7}}

\mathbf{= \dfrac{173}{21}}

\mathbf{\approx 8 \dfrac{5}{21}}

\huge\textbf{Answer:}

\huge\boxed{\mathsf{8 \dfrac{5}{21}}}\huge\checkmark

\huge\text{Good luck on your assignment \& enjoy your day!}

~\frak{Amphitrite1040:)}

8 0
2 years ago
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Which choice represents 12% as a fraction in simplest form?
konstantin123 [22]

Answer:

3/25

Step-by-step explanation:

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4 0
3 years ago
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"The square root of two times a number subtract five is equal to ten."
MrRa [10]

I think this is √2n-5 = 10.

8 0
3 years ago
mandy's square quilt measures 99 inches on each edge. how many yards of trim does she need to buy to go around the entire quilt?
stira [4]

There are 36 in in a yard

36 in ------> 1 yd


99 in ------> x

x = (99)(1)/36
x = 2.75
 99 inches equals 2.75 yards and that is the amount of trim that Mandy needs to go around the entire quilt
5 0
3 years ago
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