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Inessa [10]
3 years ago
10

Does anyone know the answer???

Mathematics
2 answers:
gizmo_the_mogwai [7]3 years ago
7 0

Answer:

Step-by-step explanation:

R=50+20t, B=150-20t they will be the same height when

50+20t=150-20t

50+40t=150

40t=100

t=2.5, usingvthis value for t in either original equation will give you the height.

h=50+20(2.5)

h=100m

melamori03 [73]3 years ago
7 0

Answer:

it would be 100. they would both meet at 100m

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I need help with my work
butalik [34]

Answer:

D

Step-by-step explanation:

Given

(x - 5)³ = (x - 5)(x - 5)(x - 5)

Expand (x - 5)(x - 5) using FOIL then multiply the result by (x - 5)

(x - 5)(x - 5)

= x² - 5x - 5x + 25 = x² - 10x + 25, then

(x - 5)(x² - 10x + 25)

= x(x² - 10x + 25) - 5(x² - 10x + 25)

= x³ - 10x² + 25x - 5x² + 50x - 125 ← collect like terms

= x³ - 15x² + 75x - 125 → D

4 0
3 years ago
Match the formula with the polygon.
kherson [118]

Step-by-step explanation:

Lets sort out the areas of the polygons to match the areas with the corresponding polygons.

1. Triangle

The formula of the area of the triangle will be:

A\:=\:\frac{1}{2} \:\:b\:h

where b is the base and h is the height of the given triangle

2. rhombus

The formula of the area of the rhombus will be:

A\:=\:\frac{pq}{2}

where p and q being the diagonals

3. Parallelogram

The formula of the area of the parallelogram will be:

A = bh

where b is the base and h is the height

4. square

The formula of the area of the square will be:

A\:=\:s^2

where s being the length if any side, as all sides are equal in square

5. trapezoid

The formula of the area of the trapezoid will be:

A\:=\:\frac{1}{2}\:h\left(b1\:+\:b2\right)

where h is the height and b1 and b2 being the bases.

6. regular polygon

The formula of the area of the regular polygon will be:

A\:=\:\frac{\left(ap\right)}{2}

where a is the apothem and p is the perimeter.

7. equilateral triangle

The formula of the area of an equilateral will be:

A\:=\:1/4\:s^2\:sqrt\left(3\right)

where s is the length of one side of the triangle

Keywords: area, Triangle, square, parallelogram, rectangle, trapezoid, regular polygon, equilateral triangle

Learn more about area of different geometry shapes from brainly.com/question/12734324

#learnwithBrainly

3 0
3 years ago
Help find angle m and angle n! <3
Llana [10]

Answer:

<m=79

<n=66

Step-by-step explanation:

The exterior angle is equal to the sum of the non-adjacent interior angles.

3 0
3 years ago
- 12abx' +6a’bx°- 30ab!
Gemiola [76]
B-30a x b would be my answer
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4 years ago
Pls Help me!
GREYUIT [131]

Answer:

Submarine W. the closest submarine is the one with the lowest depth, -1.5 km (which should actually be written as an absolute value, 1.5km, depth can't be negative).

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