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Alla [95]
3 years ago
6

The grass on Julie's lawn was 4.5 centimeters tall right after she mowed it. Then the grass

Mathematics
1 answer:
telo118 [61]3 years ago
4 0

Answer:    w = 2.1h + 4.5

Step-by-step explanation:

w is the number of weeks since Julie mowed the lawn

h is the height of the grass

w=the rate the grass grew at and the grass on Julies lawn

w=2.1h+4.5

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50 points!!! Basic math!
tangare [24]

Formula for the area of the triangle:

1/2 bh

b = base

h = height

#6.

Area = 36 in²

Base = 18 in

36 = 1/2(18)h

36 = 9h

36 ÷ 9 = h

4 = h

height = 4 in

#7.

Area = 2 ft²

Height = 1 ft

2 = 1/2 b (1)

2 = 1/2 b

2 ÷ 1/2 = b

4 = b

Base = 4 ft

#8.

Area = 42 in²

Base = 12 in

42 = 1/2 (12) h

42 = 6h

42 ÷ 6 = h

7 = h

Height = 7 in

Notice that the answers have no exponents (²). That is because they are used only on the area of shapes as units.

Since you find the area by multiplying things together, for example x · x = x², the exponent is there.

You do not need to worry about this being in the calculation. This will just be in units such as:

cm²

ft²

in²

m²

Just remember to use these exponents in the units for the areas.

7 0
3 years ago
Read 2 more answers
The diameter of a circular garden is 22 feet. What is the approximate area of the shaded region
SOVA2 [1]

Answer:

Step-by-step explanation:

The radius it .5 of the diameter so in this case the radius is 11.  The formula for area is pi*r^2= pi*11^2=pi*121=380.13

7 0
3 years ago
Read 2 more answers
A person on the top of a tall building looks through his binoculars at his friend that is 300 ft away from the building on the g
Nimfa-mama [501]

Answer:

520 feet

Step-by-step explanation:

The easiest way to visualize this problem is to sketch a quick diagram.

For this problem, you are given an angle and the length of the side of a triangle. If you look at the diagram, you'll see that the length given is the opposite side of the angle given. For this situation, that means you will use the sine function (refer to SOH-CAH-TOA acronym). Then you plug in the given values and solve for x.

Hope this helps!

4 0
3 years ago
2+2x=45<br><br> Solve for x<br><br> 10 pts
Volgvan

2+2x=45

-2

0+2x = 43

2x = 43

-2

0+x=41

X=41

3 0
3 years ago
Read 2 more answers
I need to help with that
Bingel [31]
The ratio of people that can be served to milligrams of baking soda needed is:

Serving : Baking Soda
2 : 1600mg

Since you want 10 people, you can multiply this ratio by 5:5 to get 

10 people served = 8000mg needed

8000mg = 8 grams
3 0
3 years ago
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