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2 years ago

Which of the equations below could be the equation of this parabola?

Mathematics

2 answers:

Stels [109]2 years ago

8 0

Answer:

Step-by-step explanation:

The graph opens downward so we would expect the integer to be negative. Also because the parabola opens downward you cannot have the equation be X=, this leaves Y=-4xsquared as the only viable option

mihalych1998 [28]2 years ago

5 0

The answer is D final bc it’s is on y axis and the -4 comes because it’s going down the the y axis. D is final answer

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Prove, cotx -tanx= 2 cot2x

ra1l [238]

Step-by-step explanation:

cotx- tanx= 2cot2x

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[ cos²x-(1-cos²x)]/sinxcosx

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2 years ago

If the minute hand is pointing to the number 9, how many minutes before the next hour is the clock showing?

Alisiya [41]

Answer:

The 9 would be pointing at 45 and 45 + 10 = 55 + 5 equals 60 thus making the answer 15 minutes until the next hour

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1 year ago

Find the number of terms in the sequence and find the sum of the sequence: 5+9+13+...+145

SashulF [63]

145-13-9-5 that what your looking for

8 0

1 year ago

** ANSWER ASAP ** am i correct?

aliina [53]

Answer:

Correct option is (A).

Step-by-step explanation:

BECAUSE,

# Supplementary means whose sums are 180°.

# 1 and 3; 2 and 4 are not supplementary.

#$# HOPE YOU UNDERSTAND #$#

#$¥ THANK YOU ¥$#

❤ ☺ ☺ ☺ ☺ ☺ ☺ ❤

5 0

2 years ago

Find the equation of an exponential function in the form y = ab^x, given the points (0, 3) and (2, 108/25). Please simplify your

lilavasa [31]

We have the equation:

$y=a\cdot b^x$

We know two points and we will use them to calculate the parameters a and b.

The point (0,3) will let us know a, as b^0=1.

$\begin{gathered} y=a\cdot b^x \\ 3=a\cdot b^0=a \\ a=3 \end{gathered}$

Now, we use the point (2, 108/25) to calcualte b:

$\begin{gathered} y=3\cdot b^x \\ \frac{108}{25}=3\cdot b^2 \\ 3\cdot b^2=\frac{108}{25} \\ b^2=\frac{108}{25\cdot3}=\frac{108}{3}\cdot\frac{1}{25}=\frac{36}{25} \\ b=\sqrt[]{\frac{36}{25}} \\ b=\frac{\sqrt[]{36}}{\sqrt[]{25}} \\ b=\frac{6}{5} \end{gathered}$

Then, we can write the equation as:

$y=3\cdot(\frac{6}{5})^x$

5 0

3 months ago