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makvit [3.9K]
3 years ago
14

This is something i really need help with!

Mathematics
1 answer:
marta [7]3 years ago
5 0
Which part do u need help on tho
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I need help with this my brain cant comprehend
Rom4ik [11]
The function is symmetric in the line that goes trough the top. The top is on t=2.5 seconds. If you want to know on which time the height is equal to 15 feet, you draw a line on that height in the graph and see where it crosses. That is at t=1.25 and t=3.75
8 0
3 years ago
Estimate length using compensation
Murljashka [212]
What do you have to estimate?
5 0
3 years ago
What is the value of z for the equation 1/4z = –7/8 + 1/8z? –3 –7 3 7
DaniilM [7]
The first step for solving this equation is to determine the defined range.
\frac{1}{4z} = - \frac{7}{8} +  \frac{1}{8z}, z ≠ 0
Move the expression\frac{1}{8z} to the left side of the equation and change its sign.
\frac{1}{4z} - \frac{1}{8z} = - \frac{7}{8}
Now we need to write all numerators above the least common denominator of 8z. This will change the equation to the following:
\frac{1}{8z} = - \frac{7}{8}
Simplify the equation using cross multiplication.
8 = -56z
Switch the sides of the equation.
-56z = 8
Divide both sides of the equation by -56.
z =  -\frac{1}{7}, z ≠ 0
Lastly,, check if the solution is in the defined range to get your final answer.
z = -\frac{1}{7}
Let me know if you have any further questions.
:)
6 0
3 years ago
0.6% of 25 please help
Minchanka [31]
.6 * 25 = 15
.06 * 25 = 1.5
4 0
4 years ago
Read 2 more answers
Choose the expression that represents a quadratic expression.
vesna_86 [32]

Answer:C. 2x2 + 3x − 1 is quadratic

Step-by-step explanation:

Quadratic expressions are polynomial expressions in which the highest power of the variable is 2.

Looking at option A, the highest power of the variable in the polynomial is 4. Therefore, it is not a quadratic expression.

Looking at option B, the highest power of the variable in the polynomial is 3. Therefore, it is not a quadratic expression.

Looking at option C, the highest power of the variable in the polynomial is 2. Therefore, it is a quadratic expression.

Looking at option D, the highest power of the variable in the polynomial is 1. Therefore, it is not a quadratic expression.

4 0
3 years ago
Read 2 more answers
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