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forsale [732]
3 years ago
10

Please help me solve this problem!

Mathematics
1 answer:
Novay_Z [31]3 years ago
5 0

Answer:

20300m^2

Step-by-step explanation:

first try to imagine the shape bisected into a rectangle and a triangle

to find the missing part of the triangle or the bottom side you need to subtract 70m from 140 m

140m-70m=70m this will be the base of your triangle

now you need the side

230m-60m=170

triangle formula base x height/ 2

70m x 170m=a

11900m=a

now the rectangle

base x height=a

60m x140m=a

8400m=a

finally add the two quantities together

8400m+11900m=a

20300m^2=a

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82. Subtract 12x? + 6y - 3 and 3x? - 9y + 12
balu736 [363]

Answer:

-x^2+15y-15

Answer if it is a ^2

Step-by-step explanation:

2x^2 + 6y - 3 -(3x^2 - 9y + 12)=

2x^2+6y-3-3x^2+9y-12=

-x^2+15y-15

is it a ^2 or a question mark

3 0
3 years ago
Use the formula v=u+at <br>calculate v when:<br>u=10, a=3, t=2.5​
Ksenya-84 [330]

Answer:

<h2>17.5</h2>

Step-by-step explanation:

v = 10 + 3 \times 2.5 \\ v = 10 + 7.5 \\ v = 17.5

This is your answer :))

7 0
3 years ago
Read 2 more answers
Jona writes the expression (picture) to determine the number of questions answered correctly. What is an equivalent expression?
nirvana33 [79]

40-(1/10*40)

40-4

36

I hope this helps


4 0
3 years ago
Please answer this question now
IrinaVladis [17]

Answer:

243.75

I hope i am right

Step-by-step explanation:

Using \: angle\: 40 \\Opposite = 25\\Hypotenuse = ?\\Sin \alpha = \frac{opp}{hyp} \\Sin 40 = \frac{25}{x} \\0.6427= \frac{25}{x}\\0.6427x = 25\\x = \frac{25}{0.6427}\\ x = 38.89\\x = 39\\Using \:Pythagoras\: theorem\\Hyp^2 = Opp^2 +Adj ^2\\39^2=25^2+x^2\\1521=625+x^2\\1521-65=x^2\\896=x^2\\x=29.93\\x = 30\\area = 1/2 \times b \times c \times sin(A).\\b =25\\c =39\\a =30\\A = \frac{1}{2} \times 25  \times 39 \times Sin 30\\A = 487.5\times 1/2\\A =243.75yd^2

8 0
3 years ago
The area of a rectangular field is 8624 yd^2. If the length of the field is 98 yards, what is its width
Maslowich
A = L x W

8624 = 98 \times w \\ 8624 \div 98 = w \\ 89.83 = w
so the with is 89.83 yards.
5 0
3 years ago
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