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Answer:

1/100

Step-by-step explanation:

Hope it helps

Please brainliest

Answer:

Option 1,3,4,6 are correct

Explanation

Step-by-step explanation:

we have formula for discriminant that is D=b^{2} -4acD=b

2

−4ac

when D>0 the roots are real and unequal

when D= 0 roots are real and equal

and when D< 0 roots are imaginary or not real and unequal

In 1st equation: x^2+6x+8x

2

+6x+8

a=1,b=6,c=8 on substituting the values in the formula we will get

D=6^2-4(1)(8)=4 > 0D=6

2

−4(1)(8)=4>0 hence real and unequal roots.

In 2nd equation:x^2+4x+8x

2

+4x+8

a=1,b=4,c=8 on substituting values in formula

D=4^2-4(1)(8)=-16 < 0D=4

2

−4(1)(8)=−16<0 so roots are not real

In 3rd equation x^2-12x+3x

2

−12x+3

a=1,b=-12,c=3 on substituting values

D=D=(-12)^2-4(1)(3)=132 > 0D=(−12)

2

−4(1)(3)=132>0 roots are real and unequal

In 4th equation: x^2+4x-1x

2

+4x−1

a=1,b=4,c=-1 on substituting the values

D= 4^2-4(1)(-1)=20 > 0D=4

2

−4(1)(−1)=20>0 real roots

In 5th equation:5x^2+5x+45x

2

+5x+4

a=5,b=5,c=4 on substituting the values

D=5^2-4(5)(4)=-55 < 0D=5

2

−4(5)(4)=−55<0 roots are not real

In 6th Equation: x^2-2x-15x

2

−2x−15

a=1,b=-2,c=-15 on substituting the values

D=(-2)^2-4(1)(-15)=64 > 0D=(−2)

2

−4(1)(−15)=64>0 roots are real

Answer:

Tank 2 filling faster

Step-by-step explanation:

Tank 1 filling at 1 1/8 gallons per minute (3/4 ÷ 2/3)

Tank 2 filling at 1 1/4 gallons per minute (5/8 ÷ 1/2)

Answer:

30 cm

Step-by-step explanation:

Ok so I am not exactly sure if you want to know how many whole cups can be added or simply how many 2/3 cups make up 10, but heres what I found.

So to find how many 2/3 is in 10 cups you simply have to divide

10/(2/3) = 15

So 10 cups of flour is 15 (2/3) cups of flour.

Hope this helps :)

Answer:

2. 77.9

Step-by-step explanation:

I think its that i looked up the formula sorry if im wrong

Answer:

5086.8 cubic yards

Step-by-step explanation:

Given data

Height = 20yards

Diamter= 18 yards

Radius= 9 yards

The expression for the volume of a cylinder is given as

V=πr^2h

substitute

V=3.14*9^2*20

V=3.14*81*20

V=5086.8 cubic yards

Answer:

-0.25268 rad + 2πn  ,   3.394273 rad + 2πn

 ≈  - π /12 + 2πn,   π + 2πn

Step-by-step explanation:

sin( x ) = -0.25

x = sin^-1 ( -25 )

 The solutions of the equation  sin( x ) = -0.25 are :

X = -0.25268rad + 2πn  ,    3.394273rad + 2πn

  ≈  - π /12 + 2πn,   π + 2πn

Answer:

268 in²

Step-by-step explanation:

The surface area is basically the entire area of the figure. You can do it multiple ways, but this is how I did it. I found the area of each side and added them all together. There are three sets of identical sides. First, we'll calculate the area of the side with lengths 10" and 8".

10 · 8 = 80

There are two of these sides, so currently we have 80 + 80.

Next, the area of the sides with lengths 8" and 3". These are the sides at the top and bottom.

8 · 3 = 24

So to our equation we now have 80 + 80 + 24 +24.

For the final two sides, we have the dimensions 10" and 3".

10 · 3 = 30

To our equation, we add this to get 80 + 80 + 24 + 24 + 30 +30.

Add all these numbers together for 268.

In the correct form, we add the square symbol to show that we are talking about area. The answer is 268 in². Good luck :D

Answer:

First Image is the orginal image of ∆XYZ, and the second is the composition of a 300° rotation and a 60° rotation (360°)

The image of ∆XYZ for a composition of a 300° rotation and a 60° rotation, both about point Y is 360°

Trigonometric ratios are defined as the values of all the trigonometric functions based on the value of the ratio of sides in a right-angled triangle.

various ratios are:-

The ratios of sides of a right-angled triangle with respect to any of its acute angles are known as trigonometric.

Learn more about trigonometry here:-https://brainly.com/question/24349828

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Answer:

c

Step-by-step explanation:

Answer:

25%

Step-by-step explanation:

Answer:

the answer is y=48

Step-by-step explanation:

you divide the arc by 2 if it's an inscribed angle

Answer: 48

Step-by-step explanation: 96/2

Answer:

189.

Step-by-step explanation:

I divided 42 by 2 and got 21..

Then, I multiplied 21 by 9 and got 189!

Answer: 1.35 inches

hope this helps

Answer:

20 months approx

Step-by-step explanation:

Given data

Price=$2,350

Monthly savings=  $115 per month

Hence the duration of time to save up $2,350 is given as

=2,350/115

=20.434

Hence the time is 20 months approx

Answer:

X=8

Step-by-step explanation:

Answer:

0.25 liter

Step-by-step explanation:

Answer:

Step-by-step explanation:

[tex]4^4\\A^3[/tex]

Answer:

[tex]4^{4}[/tex] and [tex]A^{3}[/tex]

Step-by-step explanation:

Answer:

don't click or open people links here they are people trying to get info off of you for their benefits or trying to give you viruses. report them.

The height of the trapezoid has a length of 4 units

From the question, we are to determine the height of the trapezoid

The area of a trapezoid can be calculated by the formula,

[tex]A = \frac{1}{2}(a+b) h[/tex]

Where A is the area

a and b are the bases

and h is the height

The median of a trapezium is given by

[tex]\frac{1}{2} (a+b)[/tex]

From the given information,

A = 96 square units

[tex]\frac{1}{2}(a+b) = 24 \ units[/tex]

Putting the parameters into the formula,

96 = 24 × h

h = 96 ÷ 24

h = 4 units

Hence, the height of the trapezoid has a length of 4 units

Learn more on Calculating the sides of a trapezium here: https://brainly.com/question/369033

Answer:

I think 4.5 cm.

Step-by-step explanation:

Hope that may be right.

Answer:

2.

Step-by-step explanation:

y = 3/4x +1

m = 3/4 b = 1

hope this helps

Answer:

38

Step-by-step explanation:

Answer:

Rational.

Step-by-step explanation:

Natural numbers are numbers 1 through infinite.

Whole numbers are numbers 0 through infinite.

Integers are negative numbers (No decimals nor fractions)

Rational numbers are fraction/decimal numbers (can be negative).

Irrational numbers are squared numbers.

Real numbers includes all of the above mentioned.

Hope this helps.

Answer:

A. rational numbers

Step-by-step explanation:

-1/4 belongs to rational number

Answer:

Hypotenuse is 91 km

Step-by-step explanation:

a² + b² = c²

35² + 84² = c²

1225 + 7056 = c²

c² = 8281

[tex]\sqrt{c^2} =\sqrt{8281}[/tex]

c = 91

Answer:

20%

Step-by-step explanation:

Divide 16 by 80 and you get 0.2 as an answer and to get a percent you move the decimal 2 places to the right to fet 20%

Isabel has completed 20 percent of the race of 80 miles.

A percentage is a quantity or ratio that, in mathematics, represents a portion of one hundred. It is one method for illustrating a relationship between two integers that has no dimensions.

Given, Isabel has ridden 16 miles of a bike course. The course is 80 miles long.  From the general formula of percentage:

For the percentage, we have to divide the value by the total value and then multiply the result by 100.

percentage of the course has Isabel ridden so far = (16/80) * 100

percentage of the course has Isabel ridden so far = 1/5*100

percentage of the course has Isabel ridden so far = 20%

Therefore, Isabel has ridden 20 percent of the course which is 80 miles.

Learn more about percentages here:

brainly.com/question/29116686

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Answer:

rational

Step-by-step explanation:

its so because they fit equaly