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2 years ago

If someone writes "/" does it mean Division or a Fraction Line

Mathematics

2 answers:

RUDIKE [14]2 years ago

8 0

Fraction line is what it means like 1/2 is the fraction 1 half

BabaBlast [244]2 years ago

7 0

Answer:

Fraction

Step-by-step explanation:

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What is the value of 5^3i^9

Tema [17]

Answer:

5^(3)i^(9)= five cubes times i to the power of 9=125i

Step-by-step explanation:

Raise 5 to the power of 3

rewrite i9 as (i^4)2^i

so, you get 125((i^4)^2i)

i^4=1

125(1^2i)

125i

4 0

2 years ago

What is the x-coordinate of the vertex of the parabola whose equation is y = 3x^2 + 12x + 5?

marshall27 [118]

X=-2....................

5 0

3 years ago

Mrs. Smith's class is working on a variety of science experiments. Each

SVETLANKA909090 [29]

Answer:

Step-by-step explanation:

If there are <em>n</em> students, then the number of pairs is $\frac{n(n-1)}{2}$ .

With 12 students, $\frac{12(12-1)}{2} = \frac{132}{2}=66$ pairs can be formed.

The reason the formula works is this: Each of the 12 students can be paired with 11 other students (no student is paired with him/her self). But counting 12 x 11 = 132 counts each pair <u>twice</u>. Example: student A can be paired with student B,..., student B can be paired with student A. The pair was counted two times.

See the attached image that shows pairings of 5 students. There are

5(5 - 1)/2 = 5(4)/2 = 10 pairs.

8 0

3 years ago

Adrianna sold her DVD that cost $20 with an 8% markup. How much did Adrianna make with the 8% markup?

djverab [1.8K]

Let’s find 1% of the markup first.
20 x 0.01 = $0.20
$0.20 x 8 = $1.60 markup.
$20 + $1.60 = $21.60 total.

Adrianna made $21.60 total, including markup.

Hope that helped! :)

5 0

3 years ago

H is the circumcenter, or point of concurrency, of the perpendicular bisectors of ΔACE.

Radda [10]

Answer:

∠HDC ≅ ∠HDE, AB ≅ BC, HC ≅ HE

Step-by-step explanation:

yup

7 0

3 years ago