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SVETLANKA909090 [29]
3 years ago
8

Please help me, I will give brainliest

Mathematics
1 answer:
olchik [2.2K]3 years ago
5 0

Answer:i think is 64.5

Step-by-step explanation:

A=a+b

2h=32+11

2·3=64.5

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Let m = 6x +5.<br> Which equation is equivalent to (6x + 5)^2 – 10 = -18x – 15 in terms of m?
aev [14]

Answer: m² + 3m - 10 = 0

Step-by-step explanation:

From the expression, considering

6x + 5 = m

The original expression

( 6x + 5 )² - 10 = -18 - 15

Factorize the right hand expression,

-18 - 15 = -3( 6x - 15 )

Since m = 6x + 5 , we now substitute for m in that expression

m² - 10 = -3m

Now re arrange the equation in the form,

ax² - bx + c = 0

Now back to the equation,

m² + 3m - 10 = 0,

So the equivalent equation will be

m² + 3m - 10 = 0

7 0
3 years ago
Could someone explain how you would solve this? I really don't understand it.
nlexa [21]
Because of rules of geometry we know that a+b=180 degrees so we can add the equations together and set that equal to 180 and solve
6x-48+4x+38=180
subtract 38 from both sides and add 48 to both sides
then add like terms
10x=170
and divide by 10 to get 
x=17
7 0
3 years ago
Please help and Solve for x.
Serhud [2]

Answer:

tan70 = \frac{opp}{adj}  \\  \:  \:  =  \frac{15}{x }  \\  \\  x =  \frac{15 }{tan70 } \\   \\  =  \frac{15}{2.747}  \\  \\  = 5.46

since 5.46 is equal to 5.5...

I think the answer is the first one

7 0
3 years ago
25. Find the area of the trapezoid. Leave your answer in simplest radical form. The figure is not drawn to scale.
n200080 [17]

Answer:

Option D. 44\ cm^{2}

Step-by-step explanation:

we know that

The area of a trapezoid is equal to

A=\frac{1}{2}[b1+b2]h

we have

b1=8\ cm

b2=(4+8+2)=14\ cm

h=4\ cm

substitute the values

A=\frac{1}{2}[8+14](4)=44\ cm^{2}

6 0
3 years ago
From two points on the same level as the base of a tree, the angles of elevation to the top of the tree are found to be 24° and
Valentin [98]

Answer:

the answer is 32.8in.

Step-by-step explanation:

(sin 22)/42 = (sin 24)/x

x = 45.60

sin 46 = x/45.60

x = 32.80

32.8in.

hope it helped :)

mark me brainliest!

8 0
3 years ago
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