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3 years ago

Which symbol correctly compares these fractions? 9 36 10 40

Mathematics

1 answer:

maks197457 [2]3 years ago

7 0

Answer:

Step-by-step explanation:

9/10 vs 36/40

Multiply 9/10 by 4/4 so the denominators are equal

9/10*4/4 = 36/40

36/40 vs 36/40

They are equal

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74.88 is what percent of 72?

Lemur [1.5K]

Answer:

104%

Step-by-step explanation:

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3 years ago

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Triangle ABC is formed by the vertices A(1,2,-1), B(-3,-6,2)and C(3,-2,0).

Vesnalui [34]

Answer:

Point D: $(0,-4, 1 )$

d = √41

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Pre-Calculus

Midpoint Formula [3D]: $(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2}, \frac{z_1+z_2}{2} )$
Distance Formula [3D]: $d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2+(z_2-z_1)^2}$

Step-by-step explanation:

Step 1: Define

Point A(1, 2, -1)

Point B(-3, -6, 2)

Point C(3, -2, 0)

Step 2: Find Point D

Simply plug in your coordinates B and C into the midpoint formula to find midpoint

Substitute [MF]: $(\frac{-3+3}{2},\frac{-6-2}{2}, \frac{2+0}{2} )$
Add/Subtract: $(\frac{0}{2},\frac{-8}{2}, \frac{2}{2} )$
Divide: $(0,-4, 1 )$

Step 3: Find distance d

Simply plug in the 2 coordinates A and D into the distance formula to find distance d

Substitute [DF]: $d = \sqrt{(0-1)^2+(-4-2)^2+(1+1)^2}$
Subtract/Add: $d = \sqrt{(-1)^2+(-6)^2+(2)^2}$
Exponents: $d = \sqrt{1+36+4}$
Add: $d = \sqrt{41}$

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3 years ago

Use the graph shown to fill in the blank. When x = -3, then y = -4 .

Dovator [93]

Answer:

the answer is 12

Step-by-step explanation: x= -3 and y= - 4 x 3 is 12 - 3 + 3

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3 years ago

Kelly bought a new car for $20,000. The car depreciates at a rate of 10% per year. What is the decay factor for the value of the

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The answer is $8000 the value

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4 years ago

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Find the value of R that will make the equation sin 62° = cos R true when 0° < R < 90°.

Elza [17]

The value of R is 28° (Degrees), if the equation sin 62° = cos R true when 0° < R < 60°.

Step-by-step explanation:

The given is,

sin 62° = cos R

0° < R < 90°

Step:1

Form the given equation,

sin 62° = cos R.......................(1)

Where,

sin 62° = 0.88295

From the value of sin 62, equation (1) becomes

sin 62° = cos R

0.88295 = cos R

R = $cos^{-1}$ 0.88295

R = 27.9997

≅ 28°

R = 28°

Step:2

Check for solution,

From equation 1,

sin 62° = cos R

Substitute R = 28°,

sin 62° = cos 28°

0.88295 = 0.88295

Result:

The value of R is 28° (Degrees), if the equation sin 62° = cos R true when 0° < R < 60°.

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3 years ago