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zhannawk [14.2K]
2 years ago
11

Area of rectangle and traingle Please helpp

Mathematics
2 answers:
mina [271]2 years ago
3 0

Step-by-step explanation:

here \: is \: your \: solution \\  \\ base \:  = 4 \: cm \\  \\ height \:  = 6 \: cm \\  \\ area \: of \: traingle = (1 \div 2) \times base \times height \\  \\ area \:  = (4 \times 6) \div 2 \\  \\ area = 12 \: cm.sq \\  \\ hope \: it \: helps

Lelechka [254]2 years ago
3 0

Answer: a

Step-by-step explanation:

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I need help with number 3
Marizza181 [45]
Area  of circle  = pi r^2 = 78.54
r^2 = 78.54 / pi = 25
r = 5 inches

Each line from centre of the circle to a point on the hexagon = 5 ins

so  consider one of the 6 congruent triangles formed from these lines:-
Vertex angle = 60 degrees

sin 30  = 0.5s / 5    (where  s = one side of the hexagon).
0.5s = 5*0.5 = 2.5
s = 2.5 / 0.5 =  5 

So the perimeter of the hexagon is 6*5  = 30 inches




8 0
3 years ago
Solve the following using the elimination or substitution method. Show all work.
ki77a [65]

Jim has 28 nickels and 37 dimes in his pocket. which is determined by the substitution method.

<h3>What is the equation?</h3>

The term "equation" refers to mathematical statements that have at least two terms with variables or integers that are equal.

Let the number of nickels would be n

Let the number of dimes would be d

As per the given question,

d + n = 65  ....(i)

0.10d + 0.05n = 5.10  ....(ii)

From equation (i),

d + n = 65

d + n - n = 65 - n

d = 65 - n

Substitute in for the equation(ii): d = 65 - n

0.10(65 - n) + 0.05n = 5.10

6.5 - 0.10n + 0.05n = 5.10

6.5 - 0.05n = 5.10

6.5 - 0.05n - 6.5 = 5.10 - 6.5

- 0.05n = -1.4

n = 28

This means there are 28 nickels

Substitute the value of n = 28 in the equation (i),

d + n = 65

d + 28 = 65

d = 37

So there are 37 dimes

Thus, Jim has 28 nickels and 37 dimes in his pocket.

Learn more about the equation here:

brainly.com/question/10413253

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3 0
1 year ago
Read 2 more answers
How to do question 5 and 6. Can you explain the first one which is A for 5 and 6?<br><br>Thank you​
Illusion [34]

for 6

in a

given

slope(m)=1

point=(2,-4)=(x1,y1)

we know

equation of straight line

y-y1=m(x-x1)

y+4=1(x-2)

y+4=x-2

therefore x-y-6=0 is the required equation

substituting with ax+by+c=0 we get

a=1

b= -1

c= -6

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3 years ago
1) Is 26,341 divisible by 3? If it is, write the number as the product of 3 and another factor. If not, explain.
yan [13]

Answer:

No

Step-by-step explanation:

26341 ÷ 3 = 8780.333333

because the product has a decimal of 8780 recurring 3, therefore 26341 is not divisible by 3

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