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Marat540 [252]
3 years ago
11

Combine like terms. 7-x-(-5x)-10+4x

Mathematics
1 answer:
amm18123 years ago
8 0

Answer:

8x−3

Step-by-step explanation:

HOPE THIS HELPS!!!! :)

<3333333333

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Find the area of a rhombus with side length 6 and an interior angle with measure $120^\circ$.
Serhud [2]

Answer:

The area of a rhombus is 18\sqrt{3} square units.

Step-by-step explanation:

Side length of rhombus = 6 units.

Interior angle of rhombus = 120°

another Interior angle of rhombus = 180°-120° = 60°.

Draw an altitude.

In a right angled triangle

\sin \theta=\frac{opposite}{hypotenuse}

\sin (60)=\frac{h}{6}

\frac{\sqrt{3}}{2}=\frac{h}{6}

Multiply both sides by 6.

3\sqrt{3}=h

The height of the rhombus is 3\sqrt{3}.

Area of a rhombus is

Area=base\times height

Area=6\times 3\sqrt{3}

Area=18\sqrt{3}

Therefore, the area of a rhombus is 18\sqrt{3} square units.

8 0
3 years ago
Read 2 more answers
A pyramid has a base area of 124 in² and a height of 25.2 in. What is the volume of the pyramid?
xeze [42]

Answer:

1041.6

Step-by-step explanation:

The volume of a pyramid is V=b x h x 1/3 . b is the area of the base and h is the height. V=124 x 25.2 x 1/3 This can simplify to V=3124.8 x 1/3 . You could also just divide by 3. You will get 1041.6

8 0
3 years ago
So L x W=A so I have a problem where one side is 9cm on the other sides there's nothing​
Eduardwww [97]

Answer:

The other sides equal 9cm also because a square has four equal sides.

L=9cm * W=9cm =A

A=81 cm

7 0
2 years ago
What is the final balance for the investment? $1000 for 3 years at 6% compounded annually A. $1810.64 B. $4096.00 C. $1060.00 D.
ValentinkaMS [17]
The equation would be y=1000(1.06)^x, plug a 3 in for x, and you get that the answer is D. $1191.02.
4 0
3 years ago
Can someone help me please
ehidna [41]

Answer:

answer A

Step-by-step explanation:

Because

3 0
3 years ago
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