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3 years ago

Which of the following fractions is equivalent to -84/-90 in least common terms

Mathematics

1 answer:

dybincka [34]3 years ago

3 0

-84/90 = -14/15

LCF = 6

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vagabundo [1.1K]

Answer:

see attached

Step-by-step explanation:

Reflection in the line y=1 is accomplished by the transformation ...

(x, y) ⇒ (x, 2 -y)

Each point in the image is as far below the line as the original point is above the line.

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2 years ago

In order to make green paint a 2:3 ratio of blue paint and yellow paint is used.If there are 30 ounces of green paint how many o

gladu [14]

Answer:

There are 30 ounce of green paint 18 ounces blue paint was needed.

Step-by-step explanation:

Given that,

In order to make green paint a 2:3 ratio of blue paint and yellow paint is used.

Assume 2x blue paint and 3x yellow paint required to make 30 ounce of green paint.

According to the problem,

2x+3x=30

⇒5x=30

$\Rightarrow x=\frac {30}{5}$

⇒ x=6

The amount of blue paint is = 2×6

=12 ounces

The amount yellow paint is = (3×6)

= 18 ounces

There are 30 ounce of green paint 18 ounces blue paint was needed.

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2 years ago

Students were going to a play. The students who paid in advance only had to pay $32, but the students who paid at the door had t

Mnenie [13.5K]

Answer:

Step-by-step explanation:

SInce the students at the door had to pay twice as much as the students who payed in advance, you would do 32*2=64

7 0

2 years ago

Use the quadratic formula to solve for x. 4x2 +9x-1=0

insens350 [35]

Answer:

$x=\frac{-9\pm\sqrt{65} }{8}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Standard Form: ax² + bx + c = 0
Quadratic Formula: $x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}$

Step-by-step explanation:

Step 1: Define

4x² + 9x - 1 = 0

Step 2: Define variables

a = 4

b = 9

c = -1

Step 3: Find roots

Substitute: $x=\frac{-9\pm\sqrt{9^2-4(4)(-1)} }{2(4)}$
Exponents: $x=\frac{-9\pm\sqrt{81-4(4)(-1)} }{2(4)}$
Multiply: $x=\frac{-9\pm\sqrt{81-16} }{8}$
Subtract: $x=\frac{-9\pm\sqrt{65} }{8}$

5 0

2 years ago

Which number of spins would most likely result in a relative frequency that is closest to the theoretical probability?

azamat

Answer:

The answer is four since the probability is 1/4 in fraction form

Step-by-step explanation:

hope this helps!

8 0

2 years ago