Algebra benchmark test complex numbers i need the answer asap

Brainliest if correct<br><br> Solve: 8( 4 - 2^{6} divided by 4)

polet [3.4K]

$\huge\text{Hey there!}$

$\mathsf{\dfrac{8(4 - 2^6)}{4}}$

$\mathsf{2^6}\\\mathsf{\rightarrow2\times2\times2\times2\times2\times2}\\\mathsf{\rightarrow 4\times4\times4}\\\mathsf{\rightarrow 16\times4}\\\mathsf{\rightarrow \bf 64}$

$\mathsf{= \dfrac{8(4 - \bf 64)}{4}}$

$\mathsf{4 - 64}\\\mathsf{\rightarrow \bf -60}$

$\mathsf{= \dfrac{8(\bf -60)}{4}}$

$\mathsf{8(-60)}\\\mathsf{\rightarrow \bf -480}$

$\mathsf{= \dfrac{-480}{4}}\\\\\mathsf{\rightarrow \dfrac{-480\div4}{4\div4}}\\\\\mathsf{\rightarrow- \dfrac{\bf 120}{1}}\\\\\mathsf{\rightarrow \bold{-120}\div 1}}\\\\\mathsf{\rightarrow \bf -120}$

$\huge\text{Therefore, your answer is: \boxed{\mathsf{-120}}}\huge\checkmark$

$\huge\text{Good luck on your assignment \& enjoy your day!}$

~ $\frak{Amphitrite1040:)}$

6 0

2 years ago

100 POINTS! I REPEAT 100 POINTS! PLEASE HELP!

AURORKA [14]

First you need to find the area of the lawn. To find the area of a square, you multiply two sides together. You have two sides given, which is super helpful.

I put in my calculator, (40+4/5)x(50+7/8) and this gave me the answer of 2075.7.
You need to then divide that number by 500, and divide it by 300, and then round up, cause if you round down you’re not gonna have enough seed.

2075.7/500 = 4.1514, but then this needs to be rounded up or he’ll be 0.1514 short. So he needs 5 bags for the highest setting.

2075.7/300 = 6.919, so for the lowest setting, he needs 7 bags of seed.

This should be correct.

Hope this helps :)

6 0

3 years ago

The the surface area of a cylinder with radius R and height H is twice the product of Pi and the square of the radius plus twice

Y_Kistochka [10]

Concept:

(1) Curved surface area of cylinder = Circumference of the base × Height of cylinder

(2) Area of the base = Area of circle = π × (radius)²

(3) Circumference of the base = 2×π× (radius)

Consider a right circular cylinder as given in attached figure

Its height (AB) = H

Its radius (OC) = R

Now, we shall calculate the curved surface area of the cylinder (CSA)

(CSA) = Circumference of the base × Height of cylinder

(CSA) = 2×π×R × H = 2πRH -------(i)

Again, we shall calculate the area of the top and bottom circles

Area of the top and bottom (A) = 2× Area of circle

(A) =2×[ π × (radius)²]

or, (A) = 2×π×R² = 2πR²------------(ii)

Now, we shall calculate the surface area or total surface area of the cylinder.

SA = CSA + A

SA = 2πRH + 2πR²

or, SA = 2πR² + 2πRH

This is the required equation.

4 0

3 years ago

1. Addition:

Stolb23 [73]

Answer:

<h2><em>See explanation.</em></h2>

Step-by-step explanation:

<h2>1. Subtraction</h2>

a. x - 2 = 10

x = 12

12 - 2 = 10.

b. s - 4 = 6

s = 10

10 - 4 = 6

c. y - 10 = 24

y = 34

34 - 10 = 24

d. t - 3 = 9.

t = 12

12 - 3 = 9

<h2>2. Addition</h2>

a. x + 2 = 10

x = 8

8 + 2 = 10

b. s + 4 = 6

s = 2

2 + 4 = 6

c. y + 10 = 24

y = 14

14 + 10 = 24

d. t + 3 = 9

t = 6

6 + 3 = 9

<h2>3. Multiplying Fractions</h2>

a. 1/2x = 10

x = 20

1/2(20) = 10

b. 1/4s = 8

s = 32

1/4(32) = 8

c. 1/3t = 6

t = 18

1/3(18) = 6

d. 1/5y = 20

y = 100

1/5(100) = 20

<h2>4. Multiplying Whole Numbers</h2>

a. 4x = 32

x = 8

4 * 8 = 32

b. 13x = 39

x = 3

13 * 3 = 39

c. 5x = 25

x = 5

$\sqrt{25}$ = 5

5 * 5 = 25

d. 10x = 100

x = 10

$10\sqrt{100}$ = 10

10 * 10 = 100.

<h2><u><em>Hope this helps.</em></u></h2>

3 0

2 years ago

Monica bowled three games. Her scores were 175, 142, and 133. What was her mean, or average, score?

Allisa [31]

150 is the answer! all you have to do is add all them up and since there is 3 there you would divide the answer you got from adding by 3

8 0

4 years ago

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