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goldfiish [28.3K]
3 years ago
12

Help me with these please

Mathematics
1 answer:
dimulka [17.4K]3 years ago
7 0
8) Area of a triangle equals 1/2 times base times height. The height in this case is 17, and the base is 74. 
1/2 x 17 x 74 = 1/2 x 1258 = 629
Final answer: 629 ft^{2}

9)Area of a parallelogram equals base times height. Multiply 471.5 by 21.3. 
The final answer should be 10042.95
Final answer: 10042.95 
You might be interested in
Juan’s age is 5 years more than twice Margo’s age. The sum of their ages is 29 years. Find their ages
Brut [27]

x Margo's age

Jaun + Margo

(2x+5) + x = 29

3x = 24

x = 8, Margo's age. Jaun 21 2*8+5

And to check...

sum = 29


5 0
3 years ago
Really need help on this too ASAP thanks for whoever helps me
geniusboy [140]

Answer:

D 45

Step-by-step explanation:

90/2 = 45

135/3 = 45

180/4 = 45

4 0
2 years ago
Please help asap, will mark brainlest. Thanks
mixer [17]

Answer:

2.

4x^2 + 4 - 5x + x - 2x^2 + 8

= (4x^2 - 2x^2) + (x - 5x) + (4 + 8)

= 2x^2 - 4x + 12

=> D is correct

3.

2x^2 + 6x - 7x + 8 - 3x^2 + 1

= (2x^2 - 3x^2) + (6x - 7x) + (1 + 8)

= -x^2 - x + 9

=> C is correct

4.

B is correct (4 and 3)

Hope this helps!

:)

3 0
3 years ago
An A-frame house is 45 feet high and 32 feet wide. Find the measure of the angle that the roof makes with the floor. Round to th
Flura [38]

Answer:

Angle, \theta=70.4^{\circ}

Step-by-step explanation:

We have, an A-frame house is 45 feet high and 32 feet wide. It is required to find the measure of the angle that the roof makes with the floor.

The attached figure shows the A frame. Let \theta is the angle that the roof makes with the floor. So,

\tan\theta=\dfrac{45}{16}\\\\\tan\theta=2.81\\\\\theta=\tan^{-1}(2.81)\\\\\theta=70.4^{\circ}

So, the angle of 70.4 degrees is the angle that the roof makes with the floor.

4 0
3 years ago
I don't understand this )):
True [87]
Maybe you should contact your teacher
3 0
3 years ago
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