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2 years ago

What's the expanded notation for 876,543,210.25?

2 answers:

8 0

876,543,210.25 = 8(100,000,000) + 7(10,000,000) + 6(1,000,000) + 5(100,000) + 4(10,000) + 3(1,000) + 2(100) + 1(10) + 2(0.1) + 5(0.01)

Sunny_sXe [5.5K]2 years ago

7 0

800,000,000.00+70,000,000.00+6,000,000.00+500,000.00+40,000.00+3,000.00+200.00+10.00+0.00+0.20+0.05

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Which equation represents a line which is perpendicular to the line 2x + y = -5?

Gnesinka [82]

Step-by-step explanation:

Given expression;

2x + y = -5;

The given equation must be written in a form where the slope is the negative inverse of the given one.

A line perpendicular to another will have a negative inverse slope.

2x + y = -5

Equation of a straight line is generally written as;

y = mx + c

y and x are the coordinates

m is the slope

c is y - intercept

2x + y = -5

y = -2x -5

The slope of the perpendicular = $\frac{1}{2}$

So,

the new line;

y = $\frac{1}{2}$ x -5

Any line with slope of $\frac{1}{2}$ will be perpendicular

7 0

2 years ago

please help as soon as possible-Solve the right triangle shown in the figure. WIll mark brainliest to first correct answer

Dennis_Churaev [7]

Answer:

option a is the correct answer; ∠A = 68°, ∠B = 22°, AB = 2.9 cm

Step-by-step explanation:

From my understanding, we have to find angle A, angle B and side AB.

Step 1: Find side AB

AB can be solved through the Pythagoras theorem.

c² = a² + b²

c² = 2.7² + 1.1²

c² = 8.5

c = √8.5

c = 2.9 cm

Step 2: Find angle A

Angle A can be found through tan formula

tan (angle) = opposite/adjacent

tan (angle A) = BC/AC

tan (angle A) = 2.7/1.1

Angle A = tan inverse (2.7/1.1)

Angle A = 68°

Step 3: Find angle B

All 3 angles of a triangle are equal to 180°

Angle A + Angle B + Angle C = 180°

68 + B + 90 = 180°

Angle B = 22°

option a is the correct answer; ∠A = 68°, ∠B = 22°, AB = 2.9 cm

6 0

3 years ago

10.) state whether the given side lengths can form a triangle

Verizon [17]

Answer:

A. 5,8,12, side lengths can form a triangle.

B. 20, 18, 2, side lengths can not form a triangle.

C. 15, 26 , 9, side lengths can not form a triangle.

D. 4.75, 12.25, 16.25, side lengths can form a triangle.

Step-by-step explanation:

We are given three sides in options A, B , C and D.

We need to check if the given sides would form a triangle or not.

Note: Sum of two sides is always greater than third sides in a triangle.

So, we need to check the sum of two sides of given sides length to check if sum is greater than third side length.

A. 5,8,12.

5+8 is greater than 12.

5+12 is greater than 8.

12+8 is greater than 5.

Therefore A. 5,8,12, side lengths can form a triangle.

B. 20, 18, 2

18+2 is not greater than 20.

Therefore B. 20, 18, 2, side lengths can not form a triangle.

C. 15, 26 , 9

15+9 is less than 26.

Therefore C. 15, 26 , 9, side lengths can not form a triangle.

D. 4.75, 12.25, 16.25.

4.75+12.25 is greater than 16.25.

4.75+16.25 is greater than 12.25.

12.25+16.25 is greater than 4.75.

Therefore D. 4.75, 12.25, 16.25, side lengths can form a triangle.

3 0

3 years ago

PLSSS HELP IF YOU TURLY KNOW THISS

Phoenix [80]

Answer:

2x + 3y +1

Step-by-step explanation:

-2x + 4x -6y + 9y +3 -2 (arranging)

2x + 3y + 1

8 0

2 years ago

Read 2 more answers

Dan drank 7/8 of a bottle of

Anika [276]

Answer:

Dan drank 1 3/8 ths of the bottle of water

Step-by-step explanation:

since the question is asking how much water he drank altogether, it wants you to add

7/8+4/8=11/8

Dan drank 11/8 ths of the bottle of water (1 3/8)

7 0

3 years ago