2818,2021
Exercise
(1) Find the area of the Washer shown below, whose
outer diameter is 64cm and the diameter of hole
is 3.6cm (n=221

Answer:

21 k^9

Step-by-step explanation:

(3k^4) (7k^5)

Multiply the coefficients

3*7 = 21

Add the exponents

k^(4+5) = k^(9)

Put back together

21 k^9

Answer:

Owen attempted a total of 30 shots.

Step-by-step explanation:

Let's Owen's total number of attempted shots be S.

He made 60% of his total shots, which is 18. In other words, 60% of S is 18:

[tex]0.6S = 18[/tex]

Solve for S:

[tex]\displaystyle S = \frac{18}{0.6} = 30[/tex]

In conclusion, Owen attempted a total of 30 shots.

Answer:

(4,-3)

Step-by-step explanation:

Answer:

2 repeating digits

Answer:

answer is 13

i am confuse this is q or 6

Step-by-step explanation:

Subtract the numbers

9−1⋅5/(8−3)⋅x^2+6

9 − 1 ⋅ 5 / 5 ⋅ ^ 2 + 6

9 − 1 ⋅ 5 / 5 ⋅ ^ 2 + 6

9 − 1  ⋅  1x^ 2 + 6

9 − 1  ⋅  1x^ 2 + 6

9 − x^ 2 + 6

9 − x^ 2 + 6

15− x^ 2

15− x^ 2

− x^ 2+15

Answer:

[tex]y=\frac{8x}{1}-7\\[/tex]

Step-by-step explanation:

(1,1) and (2,9)

[tex]\frac{9-1}{2-1}[/tex] =[tex]\frac{8}{1\\}[/tex]

(2,9) and (x,y)

[tex]\frac{y-9}{x-2} =\frac{8}{1} \\\\1(y-9)=8(x-2)\\\\\frac{1y}{1}-\frac{9}{1}=\frac{8x}{1}-\frac{16}{1}\\\\y=\frac{8x}{1}-16+9\\y=\frac{8x}{1}-7[/tex]

Answer:

0.5 : 0.75

Step-by-step explanation:

because 1/2 is .5 in decimal form and 2/3 is .75 in decimal form

Answer:

true

Step-by-step explanation:

a^15 ÷ a^5 = a^10

a÷a = a

15- 5 =10

give brainliest please I need it to level up

Answer:

True

Step-by-step explanation:

Using the rule of exponents

[tex]\frac{a^{m} }{a^{n} }[/tex] = [tex]a^{(m-n)}[/tex] , then

[tex]\frac{a^{15} }{a^{5} }[/tex]

= [tex]a^{(15-5)}[/tex]

= [tex]a^{10}[/tex]

Answer:

The correct choice is option C. -7/5 + 11/5i

Step-by-step explanation:

  3 + 5i / 1 - 2i

= (3 × 1 + 5 (-2)) + (5 × 1 - 3(-2)) / 1^2 + (-2)^2

= -7 + 11i / 5

= -7/5 + 11/5i

Answer:

option C. -7/5 + 11/5i

Answer:

angle 2 = 37

Step-by-step explanation:

180-143=37

i dont know i wish I could help.

Answer:

-2 to 2

Step-by-step explanation:

see there's the sign of absolute value around x

so even if we put a negative number in place of x we'll get a positive outcome.

for example,

|x| = 4

|x| = 3

and so on

so the actual domain of |x| reduces to => 0 to 4.

as you'll get the values of |x| in between 0 and 4 throughout -4 to 4.

where the smallest value is 0 and largest is 4.

for range,

I'll just put these smallest and largest values in place of x and solve for domain

y= |0| - 2

y = -2

y = |4| - 2

y= 4 - 2

y = 2

so, the range of the function becomes -2 to 2.

The solution for the given expression is: [tex]\frac{-1+ i*\sqrt{19} }{2}[/tex] and [tex]\frac{-1- i*\sqrt{19} }{2}[/tex].

The quadratic function can represent a quadratic equation in the Standard form: ax²+bx+c=0 where: a, b and c are your respective coefficients. In the quadratic function the coefficient "a" must be different than zero (a≠0) and the degree of the function must be equal to 2.

For solving a quadratic function you should find the discriminant: D=b²-4ac and after that use this variable in the formula: [tex]x=\frac{-b\pm \sqrt{D} }{2a}[/tex]

The properties of multiplication are:

Here, you should apply the distributive property for solving this expression.

x*(2x)+2*(x+5) = 2x²+2x+10

After that, you should solve the previous quadratic equation.

D=b²-4ac=4-4*2*10=4-80= -76

Then,

[tex]x_{1,2}=\frac{-2\pm \sqrt{-76} }{2*2}=\frac{-2\pm i*\sqrt{76} }{4}=\frac{-2\pm i*2\sqrt{19} }{4}=\frac{-1\pm i*\sqrt{19} }{2}[/tex]

Read more about the quadratic function here:

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Answer:

[tex]x=7[/tex]

Step-by-step explanation:

Hi there!

[tex]-2^2(-5x+10)=100[/tex]

Solve -2^2:

[tex]-4(-5x+10)=100[/tex]

Divide both sides by -4:

[tex]\displaystyle \frac{ -4(-5x+10)}{-4}=\frac{100}{-4} \\\\-5x+10=-25[/tex]

Subtract 10 from both sides:

[tex]-5x+10-10=-25-10\\-5x=-35[/tex]

Divide both sides by -5:

[tex]\displaystyle \frac{-5x}{-5} = \frac{-35}{-5} \\\\x=7[/tex]

Therefore, x = 7.

I hope this helps!

Answer:

0.000056

Step-by-step explanation:

[tex] \\ 6 \times {10}^{ - 5 } - 4 \times {10}^{ - 6} [/tex]

[tex] \\ \longrightarrow6 \times \frac{1}{ {10}^{5} } - 4 \times \frac{1}{ {10}^{6} } [/tex]

[tex] \\ \longmapsto6 \times \frac{1}{ 100000 } - 4 \times \frac{1}{1000000}[/tex]

[tex] \\ \longmapsto0.00006 - 0.000004[/tex]

[tex] \\ \longmapsto0.000056[/tex]

Answer:

The density of Block B is equal to the density of Block C.

Step-by-step explanation:

not sure tho ☝️

Answer:

always true

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

Taylor: x

Jim: x + 18

Andre: 2x

Sum: x + (x + 18) + 2x = 26 ↔ x = 2

Answer:

640/20 is 32

hope it's helpful

When the number 640 is divided by the number 20, the result is 32.

To divide 640 by 20, we perform long division or use the concept of division as the inverse of multiplication. By dividing 640 by 20, we are essentially finding how many times 20 can be evenly divided into 640.

On Dividing 640 by 20 yields a quotient of 32. This means that 20 can be divided into 640 exactly 32 times, without any remainder.

Thus, 640 divided by 20 is equal to 32. In simpler terms, if we distribute 640 items into 20 groups, each group will contain 32 items.

Learn more about Division here

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Answer:

Y is less than or equal to -1, or negative infinity to -1

Step-by-step explanation:

The range is which y values are included. The line extends forever getting lower in y values, and the highest y value is -1. You can either write it as { y | y[tex]\leq[/tex] -1 } or ( -∞, -1]

Answer:

x - 2 = y OR f(x) = x - 2

remember: f(x) = y

Step-by-step explanation:

Answer:

86-9 = 77

77/7 = 11

|r-5| = 11

r = -6, 16

Step-by-step explanation:

7|r-5|+9=86

7|r-5|=86-9

7|r-5|=77

|r-5|=11

r-5=11 or r-5 = -11

r = 16

or

r = -6

Answer:

1 line

Step-by-step explanation:

1 line

Answer:

1 line

Step-by-step explanation:

Answer:  x=4, so PD = 18

Step-by-step explanation:

PD=3x+6

DQ=2x+4

PQ=30

We know that PD+DQ=30

(3x+6)+(2x+4) = 30

5x+10=30

5x=20

x=4

PD=3x+6

PD=3*4+6

PD= 18

[And DQ = 2+4+6, or 12.  PD + DQ = 30.  Checks OK]

Answer:

30

Step-by-step explanation:

12 - 5 + 6 × 3 + 20 ÷ 4

12 - 5 + 6 × 3 + 5

12 - 5 + 18 + 5

7 + 18 + 5

25 + 5

30

Answer:

First we can do 33 time 6

Step-by-step explanation:

The length of the base of the pyramid is 3 meters.

A pyramid is a polyhedron that has a base and 3 or greater triangular faces that meet at a point above the base. A square pyramid is a pyramid with a square base, four triangular sides, five vertices, and eight edges.

For the given situation,

The surface area of the pyramid = 33 m^2

Area of triangular faces = 6 m^2

Let the base of the pyramid be b and the height be h.

The formula of area of triangle is

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

⇒ [tex]6 = \frac{1}{2}(b)(h)[/tex]

⇒ [tex]6(2) = (b)(h)[/tex]

⇒ [tex]12 = (b)(h)[/tex]

The formula of surface area of square pyramid is

[tex]SA = b^{2}+2bh[/tex]

⇒ [tex]33=b^{2} +2(12)[/tex]

⇒ [tex]33-24=b^{2}[/tex]

⇒ [tex]b=\sqrt{9}[/tex]

⇒ [tex]b=3[/tex]

Hence we can conclude that the length of the base of the pyramid is 3 meters.

Learn more about square pyramid here

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Answer:

3(x+6)

Step-by-step explanation:

Parenthesis after a number typically means multiply, so 3 times the sum of an unspecified number (x), plus 6 would be 3 (x+6)