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Lilit [14]
3 years ago
14

Help me please I give thanks

Mathematics
2 answers:
klemol [59]3 years ago
8 0
If it helps, I would draw a diagram/picture first and label what you do know. The formula for the area of a trapezoid is A=(a+b)÷2xh a and b are the two bases, h is the height. So let's substitute that into the equation: 95 = [(8+10) ÷ 2] x height. Sorry for all the brackets, computers like this arent really meant for maths.... Now you want to rearrange the equation to make height the subject, like this.... Height = 95 ÷ [(8+10) ÷ 2]. It's easier if we work out the brackets first. 8 +10, quite simple, 18, divided by 2 = 9. Height = 95 ÷ 9 = 10.56 (rounded to two decimal places). To check, use the original formula for area with all the values substituted in: 95 = 9 x 10.56 which is.... 95. Unfortunately I can't change is to the units you need because I live in the UK and don't work in feet and the inches but hopefully you can change 10.5555556 feet into what you need (I think it's 10 foot 7 inches). Sorry for the long answer.
Ede4ka [16]3 years ago
6 0
Use the formula of the area of a trapezoid.
A=(B+b)·h/2
B=10ft
b=8 ft
A=95 ft
(10+8)·h/2=95|·2
18h=95·2
18h=190
h=190:18
h=10,5 ft

<em>Answer: 10,5 ft</em>
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Andrews [41]

Answer with explanation:

The equation of any line with slope 'm' and passing through any point (x_1,y_1) is given by

y=mx+(y_1-mx_1)

As we know that the general equation of a line with slope 'm' is y=mx+c

Comparing with the given equation y=3x+2 we can conclude slope of the given line is m_1=3

Now we know that the product of slopes of perpendicular lines is -1

Mathematically we can write for perpendicular lines

m_1\times m_2=-1

Thus the slope of the required line is obtained from the above relation since it is given that they are perpendicular

3\times m_{2}=-1\\\\\therefore m_{2}=\frac{-1}{3}

Hence using the given and the obtained values the equation of the required line is

y=-\frac{1}{3}x+(1-\frac{-1}{3}\times 6)}\\\\y=\frac{-x}{3}+3

Part b)

The angle of intersection between 2 lines with slopes m_{1},m_2 is given by

\theta =tan^{-1}(\frac{m_2-m_1}{1+m_1m_2})

Comparing the equations of given lines

y=6x+3\\\\y=2x+3

with the standard equation we get

m_{1}=6\\\\m_{2}=2

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\theta =tan^{-1}(\frac{2-6}{1+2\times6})=17.10

8 0
3 years ago
HELP ASAP!
enot [183]

Answer:

I believe the answer is (-1,5)

Step-by-step explanation: because when you draw it out on a coordinate plain (-1,5) lies right in the middle of these two points.

4 0
2 years ago
What is 3(x+2)-4= -(x-6)?? I need the answer to x??​
Nataly_w [17]

Answer:

x=1

Step-by-step explanation:

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4 0
2 years ago
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52 students were in each bus

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475-7=468÷9=52 so 52

7 0
3 years ago
Can you please help with these questions? I need to finish homework by tonight.
noname [10]
Length x width is the formula.
so 18 x 18 for 7.
22 x 24 for 8.
and 8 would probably be 5 x 5 to equal 20. so the length and width would be 5 and 5 because 20 is the area
3 0
3 years ago
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