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Dominik [7]
3 years ago
8

There are 800 students at O'Farrell. 40% of the students chose hybrid learning. How many

Mathematics
1 answer:
Ghella [55]3 years ago
3 0

Answer:

840

Step-by-step explanation:

800+40=840

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Please help I will reward brainly
krok68 [10]
Hi there!

Since the sum of all angles in any triangle always adds up to 180 degrees, we can calculate this and solve for x.

4x + x + x = 180°
6x = 180
180 ÷ 6 = x
x = 30

So, now we know that x is 30°.

Hope this helps!
7 0
3 years ago
An equilateral triangle has a perimeter of 48 cm. What is the area?
KiRa [710]

Answer:

A=64\sqrt{3}\ cm^2

Step-by-step explanation:

we know that

An <u><em>equilateral triangle</em></u> has three equal sides and three equal interior angles (each interior angle measure 60 degrees)

so

The perimeter is equal to

P=3b

where

b is the length side of the equilateral triangle

we have

P=48\ cm

substitute

48=3b

solve for b

b=48/3\\b=16\ cm

Find the area

The formula of area applying the law of sines is equal to

A=\frac{1}{2}b^2sin(60^o)

substitute the value of b

A=\frac{1}{2}(16)^2sin(60^o)

sin(60^o)=\frac{\sqrt{3}}{2}

A=\frac{1}{2}(16)^2(\frac{\sqrt{3}}{2})

A=64\sqrt{3}\ cm^2

6 0
2 years ago
Hich of the following is a true statement about perpendicular lines?
IRISSAK [1]

Answer:

C.

perpendicular lines intersect in at least two points..

ok im not sure sorry

3 0
3 years ago
Read 2 more answers
A map has a scale of 1 cm : 20 km. Two cities are 2.5 cm apart on the map. To the nearest tenth of a kilometer, what is the actu
Pachacha [2.7K]

50 Km

1 cm → 20 Km

2.5 cm → 20 × 2.5 = 50 Km


6 0
3 years ago
They're just hired a new employee to work in your bike shop in one hour the employee burns 55 chocolate chip cookies if this rep
KATRIN_1 [288]

Answer:

250 cookies

Step-by-step explanation:

The employee burns 55 chocolate chip cookies

if this represented 22% of the days production

Let x = the total production of cookies for the day

how many cookies did you plan on producing that day?

22% of x = 55

22 / 100 * x = 55

0.22x = 55

Divide both sides by 0.22

x = 55 / 0.22

= 250

x = 250 cookies

Therefore, the total production of cookies for the day is 250

6 0
2 years ago
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