Evaluate -2a^2 if a = -5/2 -25 -12 1/2 25 12 1/2

4h2 - 2h + 6 for h = ‐2?

Goshia [24]

4h² - 2h + 6

h = -2, subtitute

4 · (-2)² - 2 · (-2) + 6 = 4 · 4 + 4 + 6 = 16 + 4 + 6 = 26

6 0

4 years ago

The original price of a pair of shoes is $29.90 and there is a markdown of 10% for a

olga_2 [115]

Answer:

2.99 is the amount that is being taken off and the final price is $26.91

Step-by-step explanation:

3 0

3 years ago

BRAINLIEST ASAP! PLEASE HELP ME :)

harkovskaia [24]

Answer:

○ $\displaystyle -\frac{2\sqrt{3}}{3}\:[or\:-\frac{2}{\sqrt{3}}]$

Step-by-step explanation:

You have to know the Unit Circle on this one. So, to start off, in the degree-angle range from 180° - 270° [Quadrant III], you must figure out the cosine value that gives you −½, and according to the graph, theta will be represented as 240°. So, now that we have our θ, looking at the y-value 240°, since we want the cosecant function, all we have to do is take the multiplicative inverse of $\displaystyle -\frac{\sqrt{3}}{2},$ which gives you $\displaystyle -\frac{2\sqrt{3}}{3}.$

Extended Information

$\displaystyle y-coordinate → sin\:θ \\ x-coordinate → cos\:θ$

$\displaystyle -\frac{2\sqrt{3}}{3} = [-\frac{\sqrt{3}}{2}]^{-1}$

I am joyous to assist you anytime.

5 0

4 years ago

A beekeeper pours honey into jars. Each large jar holds 18 ounces of honey. Each small jar holds 12 ounces of honey. The beekeep

viktelen [127]

Answer:

1,100 ounces because 20 × 30 + 10 × 50 = 1,100

Step-by-step explanation:

8 0

3 years ago

Helpo pleasssse

Tcecarenko [31]

Answer: The range is $\{y \in \mathbb{R}\ | \ y \le -6\}$

Explanation:

The parabola opens down, forming a "frowny face" in a way (just without the eyes). Or you can think of it as a hill or mountain. This means that the vertex (-3,-6) is at the top of that mountain. It's the highest point of that parabola.

The range is the set of all possible y values. We see that y = -6 is the largest it can get. So y = -6 or y is smaller than this. We would then write $y \le -6$ to describe all the possible y values.

Therefore, the range is $\{y \in \mathbb{R}\ | \ y \le -6\}$

This translates to "y is a real number such that y is -6 or smaller".

So the second answer you wrote is close, but you forgot the "or equal to" portion of the inequality sign.

See below for a visual example of what's going on.

5 0

3 years ago