(5x ² +1) (2x + 3) - 2 x (5²-3)

Answer:

aabavcaca

Step-by-step explanation:

fafafadfaf

Answer:

(4sin²x +9cos²x + 12sinxcosx) +(9sin²x+ 4 cos²x -12sinxcosx)

13 (sin²x + cos²x)

13*1 =

HP

Answer:

see explanation

Step-by-step explanation:

Using the identity

sin²x + cos²x = 1

Consider left side

(2sinx + 3cosx)² + (3sinx - 2cosx)² ← expand parenthesis using FOIL

= 4sin²x + 12sinxcosx + 9cos²x + 9sin²x - 12sinxcosx + 4cos²x

Collect like terms

= 13sin²x + 13cos²x ← factor out 13 from each term

= 13(sin²x + cos²x)

= 13 × 1

= 13

= right side , thus proven

Answer:

I hope this will help you :)

Step-by-step explanation:

Question 2a

[tex]\text{Notice } 1=1^3, 8=2^3,\cdots, 125=5^3[/tex]

[tex]\text{So the }n^{\text{th}} \text{ term is } a_n=n^3[/tex]

Question 2b

[tex]\text{Notice the denominator is always larger than the numerator by 2, and the denominator of the }n^{\text{th}}\text{ is exactly }n.[/tex]

[tex]\text{So the }n^{\text{th}}\text{ term is }a_n=\frac{n+2}{n}[/tex]

Answer:

80 degrees

Step-by-step explanation:

The whole angle EBD is 115 degrees, and angle DBG is 35 degrees, therefore

angle GBE is 115-35=80 degrees

Think about it like this, DBG and GBE need to add up to the angle measure of EBD, in other words 35 + GBE = 115

Answer:

Step-by-step explanation:

<DBE = <DBG + <GBE

<DBE = 115                  Given

<DBG = 35                  Given

<GBE = ?

You have to know a couple of things before you start.

115 = <GBE + 35                  Subtract 35 from both sides.

115 - 35 = <GBE

80 = <GBE

Answer:

We draw the circles on a coordinate system.  We know that a circle is has points that are equidistant from its centerpoint.   So the point where these circles are tangent is the midpoint between the centerpoints.

 We can use the midpoint formula.

 M = ((x1 + x2) / 2    ,      (y1 + y2) / 2)

 M = ((-2 + 6) / 2     ,    (3 + 9) / 2)

 M = (2, 6)

 These circles will have the same radii.

 If we take the distance between the midpoint and (-2,3), we will have the radius of the circle with this centerpoint.

If we take the distance between the midpoint and (6,9), we will have the radius of the circle with this centerpoint.

Step-by-step explanation:

Step-by-step explanation:

Convert the decimal number to a fraction by placing the decimal number over a power of ten. Since there are

2

numbers to the right of the decimal point, place the decimal number over

10

2

(

100

)

. Next, add the whole number to the left of the decimal.

4

18

100

Reduce the fractional part of the mixed number.

4

9

50

Convert

4

9

50

to an improper fraction.

Tap for more steps...

209

50

Answer:

(b) 3 times the other pls write how u did it pls and thank u​

Step-by-step explanation:

Answer:

1. 11

2. 20

3. 34

4. 12.6

5. 18

6. 105

Step-by-step explanation:

We are told that ---> t = 0, x = 1.5, y = 6, and z = 23

1. y + 5

= 6 + 5

= 11

2. z - 2x

= 23 - 2(1.5)

= 23 - 3

= 20

3. 2z - 2y

= 2(23) - 2(6)

= 46 - 12

= 34

4. 2.6y - 2x

= 2.6(6) - 2(1.5)

= 15.6 - 3

= 12.6

5. 4(y - x)

= 4(6 -  1.5)

= 24 - 6

= 18

6. 4(2 + z) + 5

= 4(2 + 23) + 5

= 8 + 92 + 5

= 105

Answer:

3+5×2-4

3+10-4

13-4

9

Step-by-step explanation:

But I solve like this and the answer is 9 I am student girl.

Answer:

The girl didn't follow PEMDAS

Step-by-step explanation:

PEMDAS is the order in which you solve mathematical equations.

Parentheses, Exponents, Multiplication, Division, Addition and Subtraction.

If you add before multiplying you'll get a completely different answer.

The boy followed PEMDAS, while the girl didn't.

Answer:

[y]=-18 so y belongs to (-18,-17)

Step-by-step explanation:

Answer: hm shouldn’t that just be -18?

Step-by-step explanation:

Answer:

-28/3

Step-by-step explanation:

The formula for slope is [ y2-y1/x2-x1 ].

15-(-13)/-12-(-9)

28/-3 or -9 1/3

Best of Luck!

Answer:

3/5 or 1.6666666667

pls mark me brainliest

Step-by-step explanation:

the slope = 5/3

through (1, -1)

the equation :

y -(-1) = 5/3 (x -1)

y+1 = 5/3 x -5/3

y = 5/3 x -5/3 -1

y = 5/3 x - 8/3 or y = 5/3 x - 2⅔

Answer:

[tex]320 \sqrt{2} [/tex]

Answer:

If all of the terms in the two expressions are identical, then the two expressions are equivalent.

Answer:

y = -1x + 1

Step-by-step explanation:

- Plug the values into slope formula:

y2 - y1 / x2 - x1

1 - 0 / 0 - 1

1 / -1

= -1

y = -1x + b

1 = -1(0) + b

1 = 0 + b

1 = b

Based on the information given the side length of square 3 is 10 feet.

Given:

Perimeter of square 1 =104 ft

Area of square 2=576 ft

Side length of square 3=?

Using Pythagorean theorem formula to determine the side length of square 3.

Hence,

AB=1/4×104=26ft

BC=√576=24ft

Thus,

AC=√AB²-BC²

AC=√26²-24²

AC=√676-576

AC=√100

AC=10 feet

Inconclusion the side length of square 3 is 10 feet.

Learn more about side length of square 3 here:https://brainly.com/question/5009827

Answer:

Step-by-step explanation:

The formula is the same almost as the previous question you posted.

You want to find the major arc. That's almost the whole circle. If it was the whole circle,  the formula would be 2 * pi * r

But we only want a part of it. Just how big is the angle we use in the formula?

A circle has 360 degrees to go around it. We've cut out a slice of it that is 30 degrees.

The remaining part is 360 - 30 = 330

Arc length = angle / 360  * 2 * pi * r

r = 3 m

Arc length = 330 / 360 * 2 * pi * 3

Arc length = 0.9167 * 6 * 3.14

Arc length = 17.27

Answer:

x0.4

Step-by-step explanation:

Answer:

2 1/10 miles.

Step-by-step explanation:

8 - (2 1/2 + 3 2/5)

= 8 -  (5/2  + 17/5)

= 8 - (25/10 + 34/10)

= 8 - 59/10

= 80/10 - 59/10

= 21/10

= 2 1/10 miles.

Answer:

He bought 9

Step-by-step explanation:

add 50 in the calculator until you get 450 then add 24 and you get 474. i hope this helped

Answer:

[tex] \frac{35}{27090} = 0.00129198966[/tex]

Answer:

QUESTION

35 divided by 27,090

ANSWER

[tex]0.00129198966[/tex]

[tex]3|2x+4|-1=11 \ \ /+1\\\\3|2x+4|=12 \ \ /:3\\\\|2x+4|=4\\\\2x+4=4 \ \ \text{or} \ \ 2x+4=-4\\\\2x=0 \ \ \text{or} \ \ 2x=-8\\\\\boxed{x=0} \ \ \text{or} \ \ \boxed{x=-4}[/tex]

Answer:

[tex]\boxed {\boxed {\sf x= 12}}[/tex]

Step-by-step explanation:

We are asked to solve for x. We are given a triangle and all 3 angles are labeled. We know that the sum of the angles in a triangle must be 180 degrees. Therefore, the given angles: 81, 57, and (2x+18) must add to 180. We can set up an equation.

[tex]81+57+ (2x+18)= 180[/tex]

Now we can solve for x. Begin by combing like terms on the left side of the equation. All the constants (terms without a variable) can be added.

[tex](81+57+18)+2x=180[/tex]

[tex]156+2x=180[/tex]

We will solve for x by isolating it. 156 is being added to 2x. The inverse operation of addition is subtraction. Subtract 156 from both sides of the equation.

[tex]156-156+2x=180-156 \\2x=180-156 \\2x= 24[/tex]

x is being multiplied by 2. The inverse operation of multiplication is division. Divide both sides by 2.

[tex]2x/2= 24/2 \\x= 24/2 \\x=12[/tex]

In this triangle, x is equal to 12.

Answer:

Step-by-step explanation:

❁ Hello! ❁

The sum of the measures of the angles of a triangle is 180°.

81° + 57° + (2x + 18)° = 180°

138° + (2x + 18)° = 180°

(2x + 18)° + 138° = 180°

2x + 18° = 180° - 138°

2x + 18° = 42°

2x = 42° - 18°

2x = 24°

x° = 24° ÷ 2

x° = 12°

Success! ☺️

Answer:

im pretty sure it equals 44. if you want to solve math problems in the future just use photòmath its a app

In the above figure, the Angles P and Q are equal, so their opposite sides will be equal too.

i.e. 5n = 32 + n

now, let's solve for n :

Length of PR :

Value of segment PQ is 40 units

Answer:

The length of the feild is:

    (42 / 3) x 5 = 70m

So the length of the feild is 70m

Hope it helps, Brainliest  please <3

Answer:

C=9

Step-by-step explanation:

If A, B, and C are all single digits the mimimum sum for AB would be 10 as it is a two-digit number (or 11 if you do not consider 0 a digit)

AB-(A+B)=C

10-(1+0)=9 or 11-(1+1)=9

therefore C=9

Answer:

Step-by-step explanation:

11)six hundred forty four and one hundred and twelve thousandths