Evaluate using suitable identity:
d). 9.9²​

Evaluate Using Suitable Identity:d). 9.9

Answers

Answer 1

Step-by-step explanation:

9.9²

(10-0.1)²

= 10² -2 (10) (0.1) + 0.1²

= 100 -2 + 0.01

= 98.01

Hope it helps you

Answer 2

Answer:

★ Solution :-

[tex]\sf \longmapsto 9.9^2[/tex]

[tex]\sf \longmapsto (a - b)^2 = a^2 - 2ab + b^2[/tex]

Here,

a = 10b = 0.1

[tex]\sf \longmapsto (10 - 0.1)^2 = 10^2 - 2(10)(0.1) + 0.1^2[/tex]

[tex]\sf \longmapsto 10^2 - 2(10)(0.1) + 0.1^2[/tex]

[tex]\sf \longmapsto 100 - 2 + 0.01[/tex]

[tex]\sf \longmapsto 98.01[/tex]


Related Questions

A soccer field is a rectangle 100 meters wide and 130
meters long. The coach asks players to run from one
corner to the other corner diagonally across. What is
the distance diagonally? Round to the nearest
TENTHS place.
a.83.1 meters
b.164.0 meters
c.26900 meters

with steps please (: <3

Answers

Answer: b.164.0 meters

Step-by-step explanation:

The rides at an amusement park have restrictions based on height. For the Swan Ride, the minimum height is 2 feet and the maximum height is 3 feet. Write and solve an absolute value equation that has these minimum and maximum heights as its solutions.​

Answers

Answer:

11 feet

Step-by-step explanation:

The solution for the absolute value equation is height = 2.5 feet, which lies between the minimum and maximum height restrictions of 2 feet and 3 feet for the Swan Ride.

We have,

The absolute value equation representing the height restrictions for the Swan Ride would be:

| h - 2 | = 3 - h

To solve this equation:

Solving this equation gives:

For height - 2 ≥ 0:

height - 2 = height - 3

-2 = -3 (no solution in this case)

For height - 2 < 0:

-(height - 2) = height - 3

-height + 2 = height - 3

2 + 3 = height + height

5 = 2 * height

height = 5 / 2

height = 2.5 feet

Thus,

The solution for the absolute value equation is height = 2.5 feet, which lies between the minimum and maximum height restrictions of 2 feet and 3 feet for the Swan Ride.

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a To solve 18 x 20, I find double 18 and then multiply by 10. What is the Answer?

Answers

Answer: 360

Step-by-step explanation:

If you double 18 and then multiply by 10 will be 360.

What is multiplication?

It is also known as the product. If the object n is given to m times then we just simply multiply them.

PEMDAS rule means for the Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This rule is used to solve the equation in a proper and correct manner.

The expression is given below.

⇒ 18 x 20

The product of the numbers 18 and 20 will be 360.

If you double 18 and multiply the number by 10 will be

2(18) x 10 = 36 x 10 = 360

If you double 18 and then multiply by 10 will be 360.

More about the multiplication link is given below.

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1/x+2 - 1/x-2 = 1

Answer fast please.​

Answers

[tex] \sf{ \red{ \underline{Solution - }}} \\ [/tex]

Given equation is 1/(x+2) - 1/(x-2) = 1

=> [(x-2)-(x+2)]/(x+2)(x-2) = 1

=> (x-2-x-2)/(x²-4) = 1

=> (-2-2)/(x²-4) = 1

=> -4/(x²-4) = 1

=> x²-4 = -4

=> x²-4+4 = 0

=> x² +0 = 0

=> x² = 0

The standard form is x² = 0 or x²+0x+0 = 0

Here I have used this formulae in your all questions.

The standard quadratic equation is ax²+bx+c = 0

Hope this helps!!

SOMEONE HELP! i’ll mark as brainliest!!

Answers

Answer:

b1= 2A/h - b2

Step-by-step explanation:

You have to multiply each side by 2, then divide each side by h. after that you subtract b1 from both sides and then you will get your answer.

Answer:

b1 = 2A / h - b2

Step-by-step explanation:

A = h(b1 + b2) / 2

[cross multiply]

h(b1 + b2) = A × 2

b1h + b2h = 2A

[divide both sides of the equation by h]

b1h / h + b2h / h = 2A / h

b1 + b2 = 2A / h

[make b1 the subject of the formula]

b1 = 2A / h - b2

A disposable cup is in the shape of a cone, as shown. The cup has a volume of about 48.8 in?
? in.
6 in.
What is the radius of the cup to the nearest inch?
in
Need help with this question?

Answers

Answer:

The volume of a cone is given by the formula V=\frac{1}{3} \pi r^{2} hV=

3

1

πr

2

h

If we plug in the known information into the formula, we will get the answer.

d=2.75 ind=2.75in

We know radius is half of d, so r=0.5*2.75=1.375 inr=0.5∗2.75=1.375in

The height is given as 4 in.

Pluggin all of these in the original formula gives us:

V=\frac{1}{3} \pi (1.375)^{2} (4)=7.919 cubic inchesV=

3

1

π(1.375)

2

(4)=7.919cubicinches

Rounded to the nearest tenth, our final answer is:

V=7.9 cubic inches

Step-by-step explanation:

Read carefully hopefully it helps take care

Which two lines are parallel? put into y=mx+b, first
a. 5y=2x-5

b. 5y=4+3x

c. 5y-3x= -1

noo links or answers from internet or i will report

Answers

for b, 5y=4+3x. we can divide that by 5 to get y=4/5+3/5x, where the slope is 3/5x. for c, 5y-3x=-1, so we add 3x to each side to get 5y=3x-1. when we divide each side by 5, we get y=3/5x-1/5. the slopes in B and C match up (3/5), so lines B and C would evidently be parallel since the slope is the same and they never touch.

20 minutes past due! have to get to at least 80 something!!

Answers

The answer would be 3/4

Answer:

[tex]\frac{3}{4}[/tex]

Step-by-step explanation:

Take any 2 points on the line. Use the slope formula ([tex]m=\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex])

For this example, I will use:

20, 30 and 60, 60.

[tex]m=\frac{30-60 }{20-60 }= \frac{3}{4}[/tex]

if you are traveling at a speed of 50mph, how many feet per second is this?

Answers

Answer:

73.3333  es eso espero te ayude

Does 2/3×8 =5 beau e I’m not sure

Answers

Answer:

No Solution

Step-by-step explanation:

1) Use the rule: a/b x c = ac/b.

2 x 8/3 = 5

2) Simplify 2 x 8 to 16.

16/3 = 5

3) Since 16/3 = 5 is false, there is no solution.

No Solution

Distribute -(-4v+6.3w-9.8)

Answers

Answer:

4v-6.3w+9.8

Step-by-step explanation:

If you distribute the negative sign (same as distributing -1), then you get -(-4v) + (-6.3w) - (-(9.8))

Basically it's switching the signs

Hope that helped :)

Kayla bought an opal necklace at a 15% discount sale for 1150. Find the original price of the necklace, rounded to the nearest cent.

Answers

Answer:

Not exactly sure but it should be 1322.5

Step-by-step explanation:

Is the triangle isosceles, equilateral, or
neither?
61
59°
A. isosceles
B. equilateral
C. neither

Answers

Answer:

Neither

Step-by-step explanation:

180-59-61 = 60 degrees

It is an scalene triangle = no equal angles

Step-by-step explanation:

option C is correct ( neither).

because the other side is 180-61-59 = 60.

therefore, the three angles are different, and it's a scalene triangle.

hope this helps you.

the Andriomeda galaxy is... times further away from the earth than saturn

Answers

Okay okay thanks for the update I am on my way to get my car

What is 3+0.75x=5.25-0.25 equal?

Answers

3 + 0.75x = 5.25 - 0.25x

0.75x = 2.25 - 0.25x

x = 2.25

3 + 0.75(2.25) = 5.25 - 0.25(2.25)

3 + 1.6875 = 5.25 - 0.5625

4.6875 = 4.6875

They are equal

which is the best description for the graph below

Answers

Answer: what graph?

Step-by-step explanation:

Two congruent angles have the same angle measure.

Answers

Answer:

True is the ans.

I hope it helps you.

Answer:

The above statement is True.

Step-by-step explanation:

Congruent angles are two or more angles that have the same measure. In simple words, they have the same number of degrees.

A rectangle's base is 8 in shorter than three times its height. The rectangle's area is 16 in?. Find this rectangle's dimensions.

The rectangle's height is..
The rectangle's base is..

Answers

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

Let the height of rectangle be = x,

height = x

base = 3x - 8

Area of rectangle = base × height

[tex](3x - 8) \times (x) = 16[/tex]

[tex]3 {x}^{2} - 8x = 16[/tex]

[tex]3 {x}^{2} - 8x - 16 = 0[/tex]

[tex]3 {x}^{2} - 12x + 4x - 16 = 0[/tex]

[tex]3x(x - 4) + 4(x - 4) = 0[/tex]

[tex](3x + 4)(x - 4) = 0[/tex]

so, there are two cases now,

Case - 1 :

[tex]3x + 4= 0[/tex]

[tex]3x = - 4[/tex]

[tex]x = \dfrac{ - 4}{3} [/tex]

here, value of x (length) is negative, measure of length can't be negative, so length is not equal to -4/3

Case - 2 :

[tex]x - 4 = 0[/tex]

[tex]x = 4[/tex]

here, value of x = 4, and satisfys the condition so

length = x = 4 in

base = 3x - 8 = (3 × 4) - 8 = 12 - 8 = 4 in

The rectangle's height is 4 inches and the rectangle's base is also 4 inches.

Let's assume the height of the rectangle is 'h' inches.

According to the given information, the base of the rectangle is 8 inches shorter than three times its height. This can be expressed as:

Base = 3h - 8

The area of a rectangle is given by the formula:

Area = Length * Width

In this case, the area is given as 16 square inches. We can set up the following equation:

16 = h * (3h - 8)

Expanding the equation:

[tex]16 = 3h^2 - 8h[/tex]

Setting the equation equal to zero:

[tex]3h^2 - 8h - 16 = 0[/tex]

To solve this quadratic equation, we can use factoring, completing the square, or the quadratic formula. Let's solve it using the quadratic formula:

[tex]h = (-b \± \sqrt{b^2 - 4ac}) / (2a)[/tex]

For this equation, a = 3, b = -8, and c = -16. Plugging in the values:

[tex]h = (-(-8) \± \sqrt{(-8)^2 - 4 * 3 * (-16)}) / (2 * 3)\\\\h = (8 \± \sqrt{64 + 192}) / 6\\\\h = (8 \± \sqrt{256}) / 6\\\\h = (8 \± 16) / 6[/tex]

We have two possible values for h:

h₁ = (8 + 16) / 6 = 4

h₂ = (8 - 16) / 6 = -1

Since the height of a rectangle cannot be negative, we can discard the value h₂ = -1.

Therefore, the rectangle's height is 4 inches.

Now, we can find the base of the rectangle:

Base = 3h - 8

Base = 3 * 4 - 8

Base = 12 - 8

Base = 4

Therefore, the rectangle's base is also 4 inches.

To know more about height, refer here:

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please help mee need solution please thank you​

Answers

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

The Correct choice is :

D. Both ll and lll

D both. Fuchsias jffudud

[tex]\huge\bold\red{{HELP}}[/tex]
I need a solution or explanation,need correct answer.​

Answers

Answer:

20

Step-by-step explanation:

Count the numbers within the circle B, which represents the brakes.

7 + 6 + 4 + 3 = 20 cars

9514 1404 393

Answer:

  20

Step-by-step explanation:

The total with defective brakes is the total of all of the numbers inside the circle marked B.

  7 + 6 + 4 + 3 = 20

20 cars had defective brakes.

_____

Additional comment

This diagram is called a Venn diagram. Each circle represents a specific condition. Where circles overlap, the area of overlap represents all of the conditions represented by the overlapping circles. For example, 6 cars had both defective brakes and lights (but not defective tires).

Asoccer field measures 300 feet by 180 feet. What is the area of the field?​

Answers

Answer:

54000

Step-by-step explanation:

Just do 300 feet multiplied by 180 feet, giving you 54000. Therefore, the area of the field is 54000.

Answer:

Answer: · 1.24 acres or 54,000 feet · by-step explanation: · 1.2396694 · 300*180=54000 · Then round up 1.2396694 and u get 1.24.

2 answers

·

12 votes:

It is 54,000 feet. Area is length times width (300 times 180).

Step-by-step explanation:

Answer: · 1.24 acres or 54,000 feet · by-step explanation: · 1.2396694 · 300*180=54000 · Then round up 1.2396694 and u get 1.24.

2 answers

·

12 votes:

It is 54,000 feet. Area is length times width (300 times 180).

bracket x square minus x minus six bracket minus bracket x plus two bracket​

Answers

Answer:

x^2 - 2x - 8

Step-by-step explanation:

(x^2-x-6)-(x+2)

x^2-x-6-x-2

x^2-2x-8

m=1/2(d1+d2) (solve for d1)

Answers

Answer:

d1= -d2+M

Step-by-step explanation:

you would multiply d1 and d2 by 1/2, then add negative d2/2 to each side, then divide each side by 2/1.

hope it helps

mark me brainliest pls

Answer:

[tex]d=\frac{2M}{3}[/tex]

Step-by-step explanation:

Switch sides

[tex]\frac{1}{2}\left(d\cdot \:1+d\cdot \:2\right)=M[/tex]

Multiply both sides by 2 to remove the fraction

[tex]2\cdot \frac{1}{2}\left(d\cdot \:1+d\cdot \:2\right)=2M[/tex]

Then simplify

[tex]3d=2M[/tex]

Divide both sides by 3

[tex]\frac{3d}{3}=\frac{2M}{3}[/tex]

[tex]d=\frac{2M}{3}[/tex]

hi y'all can anyone help me with this?? cuz i need this rn ( need a solution ) tysm!

Answers

Answer:

1. 3x² - 75y² = 3(x+5y)(x-5y)

2. 4x³y⁸ + 6x⁴y² + 10x⁵ y¹⁰ = 2x³y²(2y⁶+3x+5x²y⁸)

3. x⁸ - 1 = (x⁴+1) (x²+1) (x+1) (x-1)

4. 64a³ m² - 216 m⁵ = 8m²(2a-3m) (4a²+ 6am+9m²)

5. 2x³+ 54y³ = 2 (x+3y) (x²-3xy+9y²)

I hope I helped you^_^

WILL MARK CORRECT ANSWER AND FASTES ANSWER BRAINLIEST

Answers

Answer:

C

Step-by-step explanation:

Can't be B or D because the slope is negative but B and D have positive slopes. It's not A because slope is y2-y1/x2-x1. Take points (0,8) and (6,5) to plug into equation.

5-8/6-0= -3/6=-1/2

Therefore the answer is C since the y-intercept is 8 and the slope is -1/2

A paint mixture contains 10 gallons of base for every gallon of color. In 297 gallons of
paint, how many gallons of color are there?

Answers

Step-by-step explanation:

Since it was written that you should find, how many gallons of color are there you will have to divide 297 by 10

the drama club sold 421 tickets to its play for a total of $1,244. student tickets cost $2 and adult tickets cost $5. how many of each type did the drama club sell​

Answers

Answer:

yep ur welcome

Step-by-step explanation:

2s+2105-5s=1224

-3s=-881

s=-881/-3

s=294

a=421-294

a=127

Answer:

Student tickets: 287

Adult tickets: 134

Step-by-step explanation:

Students: x

Adults: y

a) x + y = 421

b) 2x + 5y = 1,244

a) x = 421 - y

b) 2 (421 - y) + 5y = 1,244 (substitution)

842 - 2y + 5y = 1244

3y = 1244 - 842

y = 402/3

y = 134 adult tickets

421 - 134 = 287 student tickets

What is the equation of the line that passes through the point (−3,0) and has a slope of -1/3

Answers

Answer:

(-3,0)=(x1,y1)

slope=m=-1/3

the equation of the line is

y-y1=m(x-x1)

y-0=1/3(x-(-3))

y   =1/3(x+3)                                        (-- is + at right side)

y   =1/3*x + 1/3*3

y   =1/3 x   +1                                        (3 has been canceled from the right side)

Step-by-step explanation:


Could someone please help me

Answers

Answer:

75%

Step-by-step explanation:

I had this question and got it right!

Answer:

the answer 75%

hope this helps

can someone please answer my question. thank you ❤️​

Answers

You can use GP in many ways.

Suppose you invested some money at somewhere.The money increases in a constant ratio.You can use geometric sequence in order to find your money after some years.In science you can use it to find growth of bacteria which is exponential.

Answer:

• Geometric progression is applied in many ways namely;

In the country statistics bureau while carrying out population census.In present situation, it is used to determine the number of cases, deaths from Corona virus disease.In determining the compound interest of principle in the banks for a given period of time.

[tex].[/tex]

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