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3 years ago

PLease help will brainlist

Mathematics

2 answers:

tresset_1 [31]3 years ago

8 0

Answer:

7. Option D

9. Option B

10. Option C

Step-by-step explanation:

34kurt3 years ago

4 0

Answer:

7. Option D

9. Option B

10. Option C

Mark as Brainliest!!!

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The heights of a maple tree and a cherry tree have a ratio of 5:2. If the maple tree grew 20 cm and 20 cm was cut off the top of

elena-14-01-66 [18.8K]

Let x be the <span>heights of a maple tree and y be the height of the cherry tree.
We know:
</span> $\frac{x}{y} = \frac{5}{2}$
<span>The new ratio is obtained like this:
</span> $\frac{x+20}{y-20} = \frac{3}{1}$ .
From the above equation we get $x= (y-20)\frac{3}{1} -20$ .
then $\frac{ (y-20)\frac{3}{1} -20}{y} = \frac{5}{2}$
Solving the above equation for y we get: $y=160$
So $x=400$
So the first tree is (400-160=240) more taller than cherry tree.

7 0

2 years ago

What is the perfect score between 144 and 169

madam [21]

Answer:

154

Step-by-step explanation:

if you write down all the numbers in a line then you go from 169 and 144 equally to the middle you would reach 154

5 0

2 years ago

Read 2 more answers

F(x) = 3x - 5 and g(x) = x + 3, find (1-9)(x).

snow_lady [41]

f(x)= 3x - 5 is x = 5/3

g(x) = x +3 is x = -3

(1-9)(x) is -8x

3 0

3 years ago

How do I factor: x to the third minus 3x squared plus 4x minus 2

Nataliya [291]

Answer:

(x² − 2x + 2) (x − 1)

Step-by-step explanation:

Use grouping.

x³ − 3x² + 4x − 2

x³ − 3x² + 2x + 2x − 2

x (x² − 3x + 2) + 2 (x − 1)

x (x − 2) (x − 1) + 2 (x − 1)

(x (x − 2) + 2) (x − 1)

(x² − 2x + 2) (x − 1)

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3 years ago

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Find the area of the irregular polygon, pls hurry I need this quickkkkkk

pickupchik [31]

Answer:

To find the area of an irregular polygon you must first separate the shape into regular polygons, or plane shapes. You then use the regular polygon area formulas to find the area of each of those polygons. The last step is to add all those areas together to get the total area of the irregular polygon

and i thank that it is b 120 in2

8 0

3 years ago