Answer:
<h3>
![\boxed{ \boxed{ \bold {\blue{ - 2}}}}](https://tex.z-dn.net/?f=%20%5Cboxed%7B%20%5Cboxed%7B%20%5Cbold%20%7B%5Cblue%7B%20-%202%7D%7D%7D%7D)
</h3>
Explanation:
Let the points be A and B
A ( -2 , 3 ) ⇒( x₁ , y₁ )
B ( 1 , -3 )⇒( x₂ , y₂ )
Now, let's find the slope:
Slope = ![\sf{\frac{y2 - y1}{x2 - x1} }](https://tex.z-dn.net/?f=%20%5Csf%7B%5Cfrac%7By2%20-%20y1%7D%7Bx2%20-%20x1%7D%20%7D)
plug the values
⇒![\sf{ \frac{ - 3 - 3}{1 - ( - 2)} }](https://tex.z-dn.net/?f=%20%5Csf%7B%20%5Cfrac%7B%20-%203%20-%203%7D%7B1%20-%20%28%20-%202%29%7D%20%7D)
When there is a ( - ) in front of an expression in parentheses , change the sign of each term in the expression
⇒![\sf{ \frac{ - 3 - 3}{1 + 2} }](https://tex.z-dn.net/?f=%20%5Csf%7B%20%5Cfrac%7B%20-%203%20-%203%7D%7B1%20%2B%202%7D%20%7D)
Calculate
⇒![\sf{ \frac{ - 6}{3} }](https://tex.z-dn.net/?f=%20%5Csf%7B%20%5Cfrac%7B%20-%206%7D%7B3%7D%20%7D)
⇒![\sf{ - 2}](https://tex.z-dn.net/?f=%20%5Csf%7B%20-%202%7D)
Hope I helped!
Best regards!!
Answer:
Lynx, like other forest hunters, play an important ecological role. As a mid-size carnivore, lynx target smaller prey species that reproduce relatively quickly. When the lynx become fewer, they catch fewer hares. Thus, the number of hares increases, and the cycle repeats itself.
Explanation:
Answer and Explanation:
To test the presence of glucose, we can perform <u>Benedict's test.</u> This test detects the presence of reducing sugars (e.g. glucose) by adding <u>Benedict's reagent.</u> This reagent contains sodium carbonate, sodium citrate and copper(II) sulfate pentahydrate. When the mixture is heated, reduce cupric compounds (Cu2+) are formed which results in the change in color from clear blue to brick-red, yellow or green.
To test the presence of glucose in the food sample, we will dissolve a small volume of food sample in water and put it in the test tubes, in triplicates. Then we will add 3 mL of Benedict's reagent. Also, we will run positive and negative controls. For positive controls, we will add glucose directly and for negative, we will not add any glucose or other reducing sugars (also in triplicates each). Then we will heat the test tubes in water water for 5-10 minutes. In the positive control, the color would change to green, yellow or brick red; but in negative control, it will stay blue (see figure attached for explanation). For the food sample, if the glucose or reducing sugars would be present, the color will change. In case of low sugar, it will be green, but increasing sugar content would change the color to yellow/orange and red. Because the experiment will be conducted in triplicates, we would be also able to verify if the results were consistent and there was no human or technical error.
![](/media/im/9f1/1a/9f11a89ffe189c620fa10babc2e75f8f.png)
They are all examples of:
B. Steroids
Explanation:
- Cholesterol is the most common steroid and is the precursor to vitamin D.
- Estrogens are a group of steroid hormones that control the development and maintenance of an individual's feminine characteristics.
- Testosterone is the primary male sex hormone and anabolic steroid.