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Pie
4 years ago
8

Number 29 please, and show work if you can

Mathematics
1 answer:
Kobotan [32]4 years ago
6 0

why ok whyh whwywwhywhyhwyhwywhwyhwyhw

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Calculate the approximate area of the shape to the nearest cm2.
emmasim [6.3K]

This is very simple. So you use two formulas:

Rectangle: Length • Width

Semicircle: Area = \frac{\pi r^2}{2}

With that, you do 0.8 ÷ 2 = 0.4 because we will be using radius. When solved, you get 0.2512... But for this problem, I will be rounding everything to the nearest hundredths.

Area of semicircle: ≈ 0.25

Now we solve for the rectangle. That is very easy. Just multiply 0.75 • 0.8 and you get 0.6

For this problem, I'm not sure why they make you round to the nearest centimeter, but if you do, you get 1 cm. Otherwise,

Round to nearest tenth: 0.9

Round to nearest hundredths: 0.85

3 0
3 years ago
In ΔRST, r = 53 inches, ∠S=6° and ∠T=58°. Find the length of s, to the nearest inch.
yaroslaw [1]

Answer:

s = 6 inches

Step-by-step explanation:

Given:

r = 53 inches,

∠S = 6°

∠T = 58°.

Required:

Length of s

Solution:

Use Sine Rule

Thus:

\frac{s}{Sin(S)} = \frac{r}{Sin(R)}

<R = 180 - (58 + 6)

<R = 116°

r = 53 inches,

∠S = 6°

s = ?

Plug in the values

\frac{s}{Sin(6)} = \frac{53}{Sin(116)}

Multiply both sides by Sin(6)

\frac{s}{Sin(6)} \times Sin(6) = \frac{53}{Sin(116)} \times Sin(6)

s = \frac{53 \times Sin(6)}{Sin(116)}

s = 6 inches (nearest inch)

7 0
3 years ago
Need help solving this
insens350 [35]

Answer:

22 km

Step-by-step explanation:

Well if sides of the triangle are 20 km and 21 km then it has to be 22 km

7 0
3 years ago
How do you explain what the problem 6 divided by 1/2 means?
miskamm [114]

Answer:

6 divided by 1/2 essentially just multiplying the number by two. 6/(1/2)=12. 6*2=12. In this problem, you are simply dividing the number six by a part of a number, in this case one half of one. Hope that helps, let me know if not!  

5 0
3 years ago
Cooper is grating cheese for his family taco dinner. He grates 1/2 of cheddar cheese and 3/4 cup of monterey jack cheese. How mu
sashaice [31]

Answer:

1 1/4 cup of cheese

Step-by-step explanation:

.5+.75

3 0
4 years ago
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