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The temperature falls from 15 degrees to -10 degrees. What is the difference in those temperatures?

Radius of circular grass lawn(without path)=[tex]35 \: cm[/tex]

Radius of circular grass lawn (with path)=[tex]35 \: cm+7 \: cm=42 \: cm[/tex]

Area of circular path=[tex]\pi ( R + r)( R- r)[/tex]

[tex] = \displaystyle{ \frac{22}{7} (42 + 35)(42 - 35)}[/tex]

[tex] = \displaystyle{ \frac{22}{7} \times 77 \times 7}[/tex]

[tex] = \displaystyle{ \frac{22}{ \cancel7} \times \cancel{77} {}^{11} \times 7}[/tex]

[tex] = 22 \times 11 \times 7[/tex]

[tex] = 242 \times 7[/tex]

[tex] = 1649 {cm}^{2} [/tex]

[tex]\boxed{\red{\frak{unic0rntaking0ver}}}[/tex]

Answer:

170

Step-by-step explanation:

don't know if its right

i calculate it...hope it help a little

The equation that describes the given situation and the number of packs required are; 25x = (17 * 10) and x = 7 packs

We are told that;

Each sticker comes in a pack of 25

Now, she wants to give each of the 17 guests at least 10 stickers.

Let the number of packs she will require be x. Thus, the expression to describe this situation is;

25x = (17 * 10)

x = (17 * 10)/25

x = 6.8 packs

Approximating to a whole number gives us 7 packs of stickers required.

Read more about Algebraic Equations at; https://brainly.com/question/4344214

Answer:

40% decrease.

Step-by-step explanation:

Answer:

4/15 of the children are infants

Step-by-step explanation:

Hope it helps!

Answer:

The answer is D

Step-by-step explanation:

The simplified form of the algebraic expression  [tex]\frac{x+2}{x^{2} +5x+6} / \frac{3x+1}{x^{2} -9}\\[/tex]  is  [tex]\frac{x-3}{3x + 1}[/tex].

Simplification of an algebraic expression can be defined as the process of writing an expression in the most efficient and compact form without affecting the value of the original expression.

[tex]= \frac{x+2}{x^{2} +5x+6} / \frac{3x+1}{x^{2} -9}\\ \\ = \frac{x+2}{x^{2} +5x+6} * \frac{x^{2} -9}{3x+1}[/tex]

Solving in parts,

[tex]=x^{2} +5x + 6\\\\= x^{2} + 2x + 3x + 6\\\\=x(x+2) + 3(x+2)\\\\=(x+2)(x+3)[/tex]

[tex]= x^{2} -9\\\\= x^{2} - 3^{2}\\ \\=(x - 3)(x + 3)[/tex]

[tex]= \frac{x+2}{x^{2} +5x+6} * \frac{x^{2} -9}{3x+1}\\\\= \frac{x+2}{(x+2)(x+3)} * \frac{(x+3)(x-3)}{3x+1}\\ \\=\frac{x-3}{3x + 1}[/tex]

Learn more about simplifying an algebraic expression here

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Answer:

x = 2.0172

Step-by-step explanation:

2.2^x+2.2^-3=5

-> 2.2^x+0.093914 = 5

-> + -0.93914    + -0.93914

-> 2.2^x = 4.906086

-> x = log(4.906086/log(2.2)

-> x = 2.0172

Answer:

  ray

Step-by-step explanation:

A half-line is called a ray.

Answer:

answer

3m + 50mn

correct me if I'm wrong.

Answer:

I think it would be 3m + 50mn

Step-by-step explanation:

Sorry if I am wrong, hope it helps!

Answer:

Rational, Rational, Rational, Irrational, Irrational

Step-by-step explanation:

The first question:

This number is rational

Second:

This number is rational. It wouldn't be rational if the digits won't repeat.

Third:

This number is rational

Fourth:

This is irrational. The digits of pi do not repeat, making it irrational.

Fifth:

Irrational. The square root of a non-perfect square is irrational.

-Chetan K

Answer:

$4

Step-by-step explanation:

Let x be the cost of a game of bowling and y be the cost to rent the shoes before the game then...

4x+y=28

6x+y=40

We can solve this system using elimination. In this scenario, we can eliminate y by subtracting the two equations...

-2x=-12

Divide both sides by -2

x=6

Plug 6 back in for x to solve for y

4(6)+y=28

24+y=28

Subtract 24 from both sides

y=4

It costs $4 to rent the shoes before bowling

Hey there!

f(x) = 3(2)^x

f(x) = 3(2)^-1

y = 3(2)^-1

y = 3 * 2^-1

y = 3 * 1/2

y = 3/1 * 1/2

y = 3(1) / 1(2)

y = 3/2

y ≈ 1 1/2

Thus, your answer is: y = 3/2 or y = 1 1/2

[EITHER OF THOSE SHOULD WORK BECAUSE THEY ARE BOTH EQUIVALENT TO EACH OTHER]

Good luck on your assignment & enjoy your day!

~Amphitrite1040:)

Answer:

f(-1) = 3/2

Step-by-step explanation:

Solve:

-Chetan K

Answer:

so

=120+32

=152

z=152 degree

Answer:

a) 54.5

b) 55.4

Step-by-step explanation:

error intervals - 54.5 is the lowest number that can round to 55, and 55.4 is the highest because 55.5 would round to 56

Answer:

23y -8

Explanation:

perimeter: length measure of all sides

perimeter of this shape:

2y - 9 + 6y +10 +5y - 7 + 10y -2

group terms ↓

2y + 6y + 5y+  10y -9 + 10 -7 -2

add basic numbers ↓

2y + 6y +5y +10y -8

final answer ↓

23y -8

Answer:

(Biggest to smallest)

Sides: DE, FE, FD

Angles: <F, <D, <E

Step-by-step explanation:

DE = 14, FE = 10, FD = 8 (Biggest to smallest)

Each angle matches up diagonally with a side

Hope this helps!

Answer:

Each time, t, is associated with exactly one car value, y.

Step-by-step explanation:

The concept being tested is functions.

The graph describe is a vertical parabola that opens downwards.

All vertical parabolas are functions because the pass the vertical line test.

In other words, each time, t, is associated with exactly one car value, y.

The correct answer is the second option.

Answer:

8- 3x

Step-by-step explanation:

1- Calculate

Answer:

A

Step-by-step explanation:

A: y + 2 = 3(x-6)

B: y + 2 = -3(x-4)

C: y + 1 = 6(x-4)

D: y + 1 = -6(x+4)

Point slope formula: y₂ ± y₁ = m( x₂ ± x₁ )

m = 3

y + 2 = 3(x-6)

Answer:

0.6 servings

Step-by-step explanation:

division. divide 3/5.

[tex] \hookrightarrow \sf \dfrac{252}{2} \\ \\ [/tex]

[tex] \hookrightarrow \sf126[/tex]

Answer:

$4 a week? darn that's a scam

Step-by-step explanation:

It should take her two and a half weeks to get $10.

Answer:

3

Step-by-step explanation:

Because she gets 4$ a week so her first week she gets 4$

second week she gets 8$

And finally her third week she would heave 12$

Have a good day :)

Answer: a) Equation become xy=1 and the second part answer is b) y=1/21

Step-by-step explanation:

Answer:

Last one: 3x²

Step-by-step explanation:

Quadratics are functions with the power of 2 as the highest.

Option 1 is a Reciprocal function

Option 2 is a linear function

Option 3 is a exponential function

Option 4 is a quadratic function

Answer:

[tex]x^{2}[/tex]+8x+7

Step-by-step explanation:

you wanted it simplified or ..?

Answer:

x = -3.5 or x = 1.7

Step-by-step explanation:

Start by factoring the left side.

We need to find two numbers that have a product of -210 (6 * -35) and a sum of 11...

-10*21=-210

-10+21=11

We can rewrite 11x as -10x+21x...

[tex]6x^2-10x+21x-35=0[/tex]

Then, factor the first and second half of the left side individually:

[tex]2x(3x-5)+7(3x-5)=0[/tex]

Since 2x and 7 are both being multiplied by 3x-5, we can combine them to get:

[tex](3x-5)(2x+7)=0[/tex]

Divide the equation by 3x-5:

2x+7=0

Subtract 7 from both sides

2x=-7

Divide both sides by 2

x=-7/2=-3.5

Now, we also have to consider another answer, in which we divide the equation by 2x+7 instead of 3x-5:

3x-5=0

Add 5 to both sides

3x=5

Divide both sides by 3

x=5/3≈1.7

5 objects that could represent a point, a line, a plane are:

Hope you could understand.

If you have any query, feel free to ask.

Planes, points and lines are the undefined terms of geometry.

A point is simply a dot, and it can be formed as follows:

A line extends indefinitely on both sides. So, we can represent a line by:

A plane is simply a flat surface. It can be represented by

Hence, the 5 objects that can represent a point, a line and a plane are the objects listed above

Read more about point, line and plane at:​

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Answer:

$ 4.20

Step-by-step explanation:

He spent $3.63 on apples

$1.80 on peaches

if you subtract both those numbers from $9.63 you get $4.20

So thats the amount he spent on tomatoes