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3 years ago

If x= 7 units and h=5 units, then what is the area of the triangle.

Mathematics

1 answer:

Harrizon [31]3 years ago

4 0

Answer: A 17.5 square units

Step-by-step explanation:

The area of a triangle is Half of the base times the height.

$A = \frac{bh}{2}$

$A = \frac{7*5}{2}$

A = 35/2

A = 17.5

You might be interested in

Which ordered pairs are solution of the inequality?

Anarel [89]

Answer:

The answer would be A, D, and C.

Step-by-step explanation:

y=1, so

1 > 2(1) -2

1> 2-2

1>0 TRUE

NEXT.

y=3

3> 2(-1) -2

3>-2-2

3> -4 TRUE

y=-2

4>2(2) -2

4 > 4-2

4>2 TRUE!

I hope this helps!

8 0

3 years ago

Three forces act on a hook. Determine the magnitude of the resultant of the force.

Novay_Z [31]

Use Hooke's law... (just kidding)

Break down each force vector into horizontal and vertical components.

$\vec F_1=(1000\,\mathrm N)(\cos30^\circ\,\vec x+\sin30^\circ\,\vec y)\approx(866.025\,\mathrm N)\,\vec x+(500\,\mathrm N)\,\vec y$

$\vec F_2=(1500\,\mathrm N)(\cos160^\circ\,\vec x+\sin160^\circ\,\vec y)\approx(-1409.54\,\mathrm N)\,\vec x+(513.03\,\mathrm N)\,\vec y$

$\vec F_3=(750\,\mathrm N)(\cos195^\circ\,\vec x+\sin195^\circ\,\vec y)\approx(-724.444\,\mathrm N)\,\vec x+(-194.114\,\mathrm N)\,\vec y$

The resultant force is the sum of these vectors,

$\vec F=\displaystyle\sum_{i=1}^3\vec F_i\approx(-1267.96\,\mathrm N)\,\vec x+(818.916\,\mathrm N)\,\vec y$

and has magnitude

$|\vec F|\approx\sqrt{(-1267.96\,\mathrm N)^2+(818.916\,\mathrm N)^2}\approx1509.42\,\mathrm N$

The closest answer is D.

5 0

2 years ago

What aspect of the town are most at risk for damage by the fire??

Stolb23 [73]

Answer:

Trees.

Step-by-step explanation:

The houses look sturdy, and not that flammable. The trees and grass are very plentiful, so they would spread easily.

Please clarify if this wasn't what you were asking.

7 0

2 years ago

I can't figure it out. <br>2x+2y=2<br>-4x+4y=12<br>

koban [17]

Answer:

how to solve 2x+2y=2 , -4x+4y=12

this is solving equations using substitution .... i have ALOT more but i juss dnt get this stuff

2x + 2y = 2 -4x + 4y = 12

x + y = 1

x = 1 - y

-4x + 4y = 12

-4(1 - y) + 4y = 12

(-4 + 4y) + 4y = 12

-4 + 8y = 12

8y = 16

y = 2

2x + 2y = 2

2x + 2(2) = 2

2x + 4 = 2

2x = -2

x = -1

Check.

-4x + 4y = 12

-4(-1) + 4(2) = 12

4 + 8 = 12

Answer: x = -1 and y = 2

Step-by-step explanation:

6 0

2 years ago

the total number of living humans on arth was converted to scientific notation using an online caculation and was reported to be

gogolik [260]

7.158 * 10^9 rounds to 7 * 10^9
7 * 10^9 = 7,000,000,000

6 0

2 years ago