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Kryger [21]
3 years ago
10

Which graph could represent the equation y=-x^2+4?

Mathematics
1 answer:
Sphinxa [80]3 years ago
7 0
J because this is a quadratic function which is shaped like a u upward
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What is the measurement 345.067 mg rounded to four significant digits?
Viktor [21]
<span>count four from the first digit to the fourth one. When you see the fourth one, look at the digit after. if it is 5+ then the fourth digit increases by one. if 5- then it stays the same. 6>5 so 0 becomes 1.

Therefore the answer is 345.1mg</span>
4 0
3 years ago
Read 2 more answers
How many 1/4 cups in 3 1/2 cups
seropon [69]
If you have 3 1/2 cups of something and you want to find how many 1/4 cups there are the you just need to divide 3 1/2 by 1/4
3 \frac{1}{2} ÷ \frac{1}{4}
the answer is 14, there are 14 1/4 cups in 3 1/2 cups.
hope I helped :)
6 0
3 years ago
In the diagram, BC is a radius of C. Determine whether AB is tangent to C. Explain your reasoning.
Whitepunk [10]

Answer:

No, AB is not tangent to C.

If it were tangent, it would form a right angle with the radius, and we could use Pythagorean's Theorem.

3²+6²=7²

9+36=49

45=49  Since this is false, it's not a right angle, and AB is not tangent.

Step-by-step explanation:

No, AB is not tangent to C.

If it were tangent, it would form a right angle with the radius, and we could use Pythagorean's Theorem.

3²+6²=7²

9+36=49

45=49  Since this is false, it's not a right angle, and AB is not tangent.

6 0
2 years ago
Which expressions are equivalint to 3x +2(x - 1) -4
Lerok [7]

Answer:

A.  3x +2(x - 1) -4 and B. 5x-6

Step-by-step explanation:

One of the answers is letter A because its the same exact expression as stated in the question. The other answer is B because of the distribution property you multiple x by 2 and multiply -1 by 2. This now gives us the expression 3x+2x-2-4. Now we add/subtract like terms and that gives the the answer 5x-6. I hope this helps.

4 0
3 years ago
Read 2 more answers
It costs $13 to rent a canoe and $5.50 to use the canoe for an hour. You have $29.50. Write an equation that represents the numb
GalinKa [24]

Answer:

Step-by-step explanation:

The base number is 13 dollars since you must pay it before adding hourly expenses.

Every hour, you have to pay 5.50.

So, the total cost would equal:

29.50 - (13 + 5.5h) < 29.50

<em>Think: you have 29.50. you must pay 13 dollars before using it. it costs 5.50 for each hour. your money must be less than your total.</em>

<em />

Hope this helped :)

8 0
3 years ago
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