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Snezhnost [94]
2 years ago
7

Which of the following equation has x = 0 as a solution?

Mathematics
2 answers:
seropon [69]2 years ago
4 0

Answer:

x= -1

Step-by-step explanation:

2x + 1 = -1 (we subtract 1 from both sides)

2x + 1-1 = -1-1

2x +0 =-2 (we divide both sides by 2)

2x÷2 = -2÷2

x = -1

Sophie [7]2 years ago
3 0

Step-by-step explanation:

is this the question you asked

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Which expression is equivalent to 3d + 1?
weqwewe [10]

Answer:

3d + 1

I'm pretty sure it's the same thing.

4 0
2 years ago
What is 2 and 6/7 times 4/5
bulgar [2K]

Answer:

Step-by-step explanation:

2 6/7 * 4/5....turn ur mixed number into an improper fraction and just multiply

20 / 7 * 4 / 5 = 80/35 which reduces to 16/7 or 2 2/7

4 0
2 years ago
Find the area please
tatuchka [14]

Answer:

D

Step-by-step explanation:

Recall that the area of a triangle is given by:

\displaystyle A = \frac{1}{2} bh

In this case, the base is <em>x</em> and the height is <em>y</em>. Hence:

\displaystyle A = \frac{1}{2} xy

We can write the following ratios:

\displaystyle \sin \alpha = \frac{x}{12} \text{ and } \cos \alpha = \frac{y}{12}

Solve for <em>x</em> and <em>y</em>:

\displaystyle x = 12\sin \alpha \text{ and } y = 12\cos \alpha

Substitute:

\displaystyle A = \frac{1}{2}\left(12\sin \alpha\right)\left(12\cos \alpha\right)

And simplify. Hence:

\displaystyle A = 72\sin \alpha \cos\alpha

In conclusion, our answer is D.

6 0
2 years ago
Consider the series 4 + 12 + 36 ... Find the sum of the first 9 terms.​
jeyben [28]

Answer:

39364

Step-by-step explanation:

You can simplify the equation to make 4(1+3+9...) The nth term is therefore 3^{n-1} so u can substitute that into the equation so 4(3^{n-1}+ 3^{n}  + 3^{n+1}..). This would simplify to 4(3^0 +3+3^2+3^3+3^4+3^5+3^6+3^7+3^8). By simplifying this, you can make it so 4(2^2+6^2+18^2+42^2+81^2) = 4(4+36+324+2916+6561) =39364

3 0
1 year ago
Jack owes a total of $24.00 to 6 different friends. If Jack owes each friend an equal amount, which answer choice represents the
Diano4ka-milaya [45]

Answer:

5555555555555555555225313

Step-by-step explanation:

3

6

554

6 0
3 years ago
Read 2 more answers
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