MATHEMATICS HIGH SCHOOL

3) The half of (√200 + √128 ) is 1. √100 + √64

2. 9√2

3. 18√2

Answers

Answer 1

Answer:

Answer:

Option 2 i.e. 9√2 is the correct option.

Step-by-step explanation:

Given the expression

$(√(200)\:+\:√(128))$

The half of $(√(200)\:+\:√(128))$ can be determined by dividing the expression in half.

Therefore, we need to solve the expression such as

$(\left(√(200)\:+\:√(128)\:\right))/(2)$

$√(200)=√(100* 2)=√(100^2* \:2)=10√(2)$

$√(128)=√(64* 2)=√(8^2* \:2)=8√(2)$

so the expression becomes

$(\left(√(200)\:+\:√(128)\:\right))/(2)=(10√(2)+8√(2))/(2)$

Add similar elements: $10√(2)+8√(2)=18√(2)$

$=(18√(2))/(2)$

Divide the numbers: 18/2 = 9

$=9√(2)$

Therefore, we conclude that:

$(\left(√(200)\:+\:√(128)\:\right))/(2)=9√(2)$

Hence, option 2 i.e. 9√2 is the correct option.

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Rich had 10 slices of pizzas. He shared 2 pieces with each of his 3 brothers and ate 1 piece himself. After this he decided to buy 6 more slices of pizza. How many slices of pizza does he have now?

Answers

Answer:

the answer is 10

Step-by-step explanation:

Answer: 10 slices

Step-by-step explanation:

10-2-3-1=4

4+6=10

Muriel says she has written a system of two linear equations that has an infinite number of solutions. One of the equations of the system is 3y = 2x – 9. Which could be the other equation?2y = x – 4.5
y = x – 3
6y = 6x – 27
y = x – 4.5

Answers

Answer: B

Step-by-step explanation: If you divide the 3 Y to get Y by itself, you will divide 3 on both sides. So 2X/3=2X/3 and -9/3=-3

So it will be Y=2X/3-3

Which should be calculated first to solve this story problem? Dave has had a gym membership for 10 weeks. He goes to the gym 5 times a week. Each visit, he exercises for 1.75 hours. He spends 0.5 hours on the treadmill and the rest he spends on the stationary bicycle.

How much time does Dave spend on the stationary bicycle in a week?

A.
the total number of hours Dave spends on the stationary bicycle each visit

B.
the total number of hours Dave spends on the treadmill each month

C.
the total number of times Dave spent exercising in 10 weeks
Unsubscribe · Report · Sun Mathematics

Answers

the answer would be a because of the time he is at the gym just add and subtract but the answer is a

Between which 2 whole numbers does the cube root
10 lie?

Answers

Answer:

3<√10<4

Step-by-step explanation:

I could be thinking of something else I'm not sure, sorry if it's wrong

What is the area of a sector with a central angle 210 and a diameter of 4.6

Answers

The area of the sector with a central angle of 210° and a diameter of 4.6units is 2.6π square units.

What is Area?

Area is a collection of two - dimensional points enclosed by a single dimensional line. Mathematically, we can write -

V = ∫∫F(x, y) dx dy

Given is a sector with a central angle of 210° and a diameter of 4.6 units.

The area of a sector can be calculated using the formula -

A{Sector} = θ/360° x 2πr

For the sector given, we have -

θ = 210°

r = 4.6 units

Substituting the values, we get the area of the sector as -

A{Sector} = 210°/360° x 2πr

A{Sector} = 7/12 x 2πr

A{Sector} = 7πr/6

A{Sector} = 7πd/12

A{Sector} = 7π x 4.6/12

A{Sector} = 7π x 0.38

A{Sector} = 2.6π square units

Therefore, the area of the sector with a central angle of 210° and a diameter of 4.6units is 2.6π square units.

To solve more questions on areas, visit the link-

brainly.com/question/29213222

#SPJ3

theta = 210°
r = 4.6/2 = 2.3
Area of circle = pi * r * r
= 3.14 * 2.3 * 2.3 = 16.61
Area of sector =
(theta / 360) * area of circle
= (210/360) * 16.61
= 9.69

I need to show my work but I don’t know how to do these can someone help me??