Find the surface area

Answer:

[tex] \sqrt{137} [/tex]

Step-by-step explanation:

11.7

Answer:

r ≈ 7.9 inches

Step-by-step explanation:

V(cylinder) = πr²h

196 = πr²(1)

196/π = r²

62.4 = r²

√62.4 = r

r ≈ 7.9

Answer:

Solution given:

the equation of a circle is:

x²+y²-6x-2y+4=0

x²-2*x*3+3²+y²-2y+1²-1²+4=0

(x-3)²+(y-1)²=9+1-4

(x-3)²+(y-1)²=6

comparing above equation with

(a-h)²+(y-k)²=r²

we get

centre (h,k)=(3,1)

radius=√6

option first

(3,1), r = √6 is a required answer.

Answer:

(3,1), r = √6 is a required answer.

Step-by-step explanation:

Step-by-step explanation:

[tex] \sqrt{3} - 1[/tex]

Answer:

-1 + √3

Step-by-step explanation:

use the F.O.I.L method to solve this.

"firsts"

1 * 2 = 2

"outsides"

1 * -√3 = -√3

"insides"

√3 * 2 = 2√3

"lasts"

√3 * - √3 = -3

so you get:

2 - √3 + 2√3 - 3

combine like terms

-1 + √3

Answer:

4 ounces

Step-by-step explanation:

If you divide 228 by 8, you will get 28.5. The 0.5 into a fraction would be 1/2. Half of 8 would be 4. In the end, there should be 28 full 8-ounce cups and one cup with 4 ounces.

Point E is exterior to APD

Answer:

Angle APE is exterior to APD

because it's outside angle APD

Yes, the relation shown is a function because every element in the domain has only one distinct image in the co-domain.

Answer:

It is not

Step-by-step explanation:

Answer:

D. Yes, a reasonable estimate is around 5 - $7 = $35.

Answer:

1-4=-3

-1-4=-5

-1+4=3

1-|-4|=5

Answer:

[tex]1-4=-3\\-1-4=-5\\-1+4=3\\1-(-4)=5[/tex]

Step-by-step explanation:

The hardest part about negative numbers in addition is remembering when to add, rather than subtract. In the last equation, we add the numbers together, because the negative sign cancels out with subtraction. All of the other equations we can follow exactly what it says to do, because there are no minus signs right next to each other.

Answer:

positive

Step-by-step explanation:

negative slopes go from right to left; this line goes from left to right

0; the line isn't completely horizontal

undefined; the line isn't completely vertical

Answer:

the ans is 63°

Step-by-step explanation:

94°+24°+x(suppose)=180°(being a triangle)

x=63°

Answer:

its 63

Step-by-step explanation:

117 would be above 90 degreesand clearly its smaller than a 90 degree angle, meaning its 63 or 67 but 94+23=117 and (a full angle which is 180) 180-117 which gives u 63

Answer:

[tex]3k (m + \frac{1}{3}n)[/tex]

Step-by-step explanation:

Sum of m and one - third of n is :

                                     [tex]= m + \frac{1}{3}n[/tex]

Product of 3k to  the sum is :

                                     [tex]=3k \times (m + \frac{1}{3}n)[/tex]

Answer:

The answer is c (54).

Step-by-step explanation:

Answer:

x = -37/32

Step-by-step explanation:

32x + 26 = -11

Subtract 26 from each side

32x + 26-26 = -11-26

32x = -37

Divide each side by 32

32x/32 = -37/32

x = -37/32

Answer:

x= -1 5/32 or x=-1.15625

Step-by-step explanation:

Answer:

Mixed martial artist

Step-by-step explanation:

Answer:

A -2*-2 ≠- 4

Step-by-step explanation:

sqrt(-4)

The answer is an imaginary number

-2*-2 = 4 not -4

Answer:

[tex]\sqrt{-4} \neq -2 \\[/tex]  because -2 times -2 equals 4 not -4.

Therefore A. [tex]-2^{2}\neq 4[/tex] is the answer to this question.

If you need help on similar problems feel free to ask, hope I helped :)

Answer: V= 330.513 cm 3

Step-by-step explanation:

Area = l x w and with a square the length and width are the same, additionally the volume of a pyramid can be found by using the formula (L)(w)(h)/3 so

8.7 x 8.7 = 75.69cm^2

75.69 x 13.1 = 991.539

991.539 ÷ 3 = 330.513 cm^3

Answer:

471.24 Inches

Step-by-step explanation:

Answer:

sec y

Step-by-step explanation:z

Note: The second expression must be [tex][(-3)+(-7)]+(-6)[/tex] instead of [tex][3+(-7)]+(6)[/tex]

Given:

The given expression is:

[tex]-3+[(-7)+(-6)][/tex]

Rahal rewrites the expression as:

[tex][(-3)+(-7)]+(-6)[/tex]

To find:

The property that Rahal use to rewrite the expression.

Solution:

According to the associative property of addition, if a, b and c are three real numbers, then

[tex]a+(b+c)=(a+b)+c[/tex]

We have,

[tex]-3+[(-7)+(-6)][/tex]

Using the associative property of addition, we get

[tex]-3+[(-7)+(-6)]=[(-3)+(-7)]+(-6)[/tex]

Therefore, the required property is associative property of addition.

Answer:

9 Feet

Step-by-step explanation:

Inches: 108

Feet: 9

Divide the length value by 12

Answer:

x = 16.4

Step-by-step explanation:

For right-angle triangles, we can use the trigonometry equations;

In this case, we need to use the sine equation in particular:

sinθ = opposite/hypotenuse

sin(66) = x/18

x = 0.91...(18)

x = 16.4438... ⇒ 16.4

Answer:

In a pyramid, line segment AD is the perpendicular bisector of triangle ABC on line segment BC. If AB = 20 feet and BD= 7 feet, find the length of side AC.

Step-by-step explanation:

Solution

It is given that AD is the perpendicular bisector on the line segment BC.

So, By Perpendicular Bisector Theorem, any point on line segment AD is at an equal distance from points B and C. It implies, AB = AC

AC = 20 feet.

Answer:

Step-by-step explanation:

The x intercepts are 0 and

1000 - 2x = 0              given condition

1000 = 2x                   Divide by 2

500 = x

So the two intercepts are 0,0 and 500,0

The intercepts mean that for (0,0) the phone company hasn't charged anything, yet. For 500,0 the phone company can sell a single phone -- not when they cost 500 dollars apiece.

The answer to the B part is completing the square.

r(x) = - 2x^2 + 1000x

r(x) = -2(x^2 - 500x )

1/2 ( 500) = 250

250^2 is what you put inside the bracket's to complete the square.

r(x) =  - 2(x^2 - 500x + 250^2) + 2*250^2

r(x) = -2(x - 250)^2 + 2*62500

r(x) = - 2(x - 250)^2 + 125000

They should sell their phones at 250 dollars a piece. The total revenue is 125000. Your graph shows exactly the same thing.

Answer:

D. Zero product of multiplication

Step-by-step explanation:

The given equation is presented as follows;

Given: x² + 6·x + 8 = 0

By factorization, to find numbers represented by variables, 'a' and 'b', such that  a + b = 6 and a×b = 8, we have, a = 2, and b = 8 as a possible solution by observation

Step 1: (x + 2)·(x + 4) = 0

Given that (x + 2) × (x + 4) = 0, we have

Step 2: x + 2 = 0 or x + 4 = 0, by zero product of multiplication

The zero-product property states that the when two non zero numbers are multiplied, the result is nonzero

Therefore, when two numbers are multiplied, and have a result of zero, for example, i × j = 0, then, either, i = 0, or j = 0

By the zero-product rule, either, (x + 2) = 0, or (x + 4) = 0

Therefore, we have;

Therefore;

Step 3: x = -2 or x = -4

The property of real numbers Felipe's use for step 2 is the Zero product of multiplication.

Answer:

Step-by-step explanation:

take 60 degree as reference angle

using cos rule

cos 60 = adjacent / hypotenuse

1/2 = 80/x

do cross multiplication

2*80 = x

160 = x

160.0 = x