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Liono4ka [1.6K]
3 years ago
13

Find the value of the indicated angel. i’ll give u brainly please help.

Mathematics
2 answers:
sergiy2304 [10]3 years ago
6 0

Answer:

113 degrees

Step-by-step explanation:

Elenna [48]3 years ago
4 0
113 degrees ! Hope this helps
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Store K sold 48 pairs of shoes this month of the sale,
sladkih [1.3K]

Step-by-step explanation:

this month-100 percent

then previous month 100-20=80 percent

so

if 48=100percent

then x=80percent

x=(80×48)/100

x=38.4 ≈ 38 pairs if shoes

8 0
3 years ago
(Mhanifa) please solve this question thank you!
ivanzaharov [21]

Answer:

  • Option A

Step-by-step explanation:

A'B' is 1/2 times the AB as the scale factor is 1/2.

<u>Find the length of AB using distance formula.</u>

  • AB = \sqrt{(4 - 2)^2 + (4-0)^2}  = \sqrt{20}  = 2\sqrt{5}

<u>And find A'B':</u>

  • A'B' = 1/2*2\sqrt{5}  = \sqrt{5}

Correct choice is A

8 0
3 years ago
What is the coefficient in the expression 5x^2 +3 ?<br> A. 5<br> B. X<br> C. 3<br> D. 2
Viktor [21]

Answer:

the coefficient is A.5

5 0
3 years ago
Read 2 more answers
QUICK EASY 25 POINTS!!
MAVERICK [17]

Answer:

1. leave the radical symbol and don't try to convert it to a decimal form

2. The approximated value differs from the exact solution and doesn't give a true equation.

3. Depending on the case, if she needs a mathematical answer, the exact value should be used, but for more practical applications, the rounded decimal form would be more usable.

Step-by-step explanation:

The step by step solution to the equation:

4x^3=756\\x^3=\frac{756}{4} =189\\x=\sqrt[3]{189} \\x=\sqrt[3]{3^3*7} \\x=3*\sqrt[3]{7}

1.- Exact solution means that if in the final step when solving for x the value of  x^3 is not a perfect cube, one needs to leave it indicated as a radical expression (with the radical symbol).

in our case, the cubic root of 189 is not a perfect cube. The factor form of 189 is: 3^3*7, so there is a perfect cube factor (3^3), but the other factor (7) is a prime number. Therefore 3 can get out of the root, while 7 stays inside.

2.- The equation was solved above, in exact form. Now to solve it giving a decimal approximation, we use a calculator to find the cubic root of 7, which is an irrational number with infinite number of decimals, the first of which we type here: \sqrt[3]{7} = 1.91293118...

Therefore, the decimal approximation to the solving for x would be:

x=3*\sqrt[3]{7}=3*1,91293118...=5.73879...=5.74

Where we rounded to two decimals as requested.

When we replace the exact answer in the original expression, we get a perfect equality:

4*x^3=756\\4* (3\sqrt[3]{7} )^3=756\\4*3^3*(\sqrt[3]{7} )^3=756\\4*27*7=756\\\\756=756

While if we use the approximate answer, we get:

4*x^3=756\\\\4*(5.74)^3=756\\\\4*189.119224=756\\756.476896=756

which is NOT a true equality.

3.- I would stick with the idea of showing the exact answer as answer to the mathematical equation. but for a practical case (for example she needs to by some material as a result of her equation solving, it would be more practical to take the numerical approximation to the store, instead of a cubic root of a number.

7 0
3 years ago
Which of the following are congruence transformations? Check all that apply.. A. Translating. B. Reflecting. C. Rotating. D. Shr
Temka [501]
Congruence transformations are:
A ) Translating,
B ) Reflecting,
C ) Rotating.
7 0
2 years ago
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