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agasfer [191]
3 years ago
10

(5k + 3)(k + 1) = 0​

Mathematics
1 answer:
Slav-nsk [51]3 years ago
8 0

Answer:

5k²+8k+3

Step-by-step explanation:

5k²+5k+3k+3

5k²+8k+3

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Solve for b. (g+l)b=n
denis23 [38]

Answer:

         n

b = ---------

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Step-by-step explanation:

We need to isolate b.  Starting from (g+l)b=n, we divide both sides by (g+l), obtaining

         n

b = ---------

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7 0
3 years ago
PLEASE HELP ITS DUE IN 2 HOURS, I NEED THIS, WILL GIVE BRAINLIEST.
Evgesh-ka [11]

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4 0
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Question set 2: Many species of terrestrial tree frogs that hibernate at or near the ground surface can survive prolonged exposu
joja [24]

Answer:

0.86

Step-by-step explanation:

The z-score we need to make the comparison is given by

\bf z=\frac{-2.05-(-2)}{\sigma/\sqrt{n}}

where

\bf \sigma= the standard deviation established in the study

n = the sample size

\bf z=\frac{-2.05-(-2)}{0.3/\sqrt{42}}=-1.0801

and for the Normal distribution N(0,1) we want to find  

<em>P(X > -1.0801) </em>

By using a spreadsheet or the table attached, we find that

P(X > -1.0801) = 0.86

(See picture attached)

7 0
3 years ago
What happens when y = -f(-x)?
IgorLugansk [536]

Answer:

It's a reflection over the x axis.

Step-by-step explanation:

Idk I googled it.

3 0
3 years ago
4. Find the vertex, focus, and directrix of the parabola. Sketch its graph, showing the focus and the directrix.
valentina_108 [34]

Answer:

vertex - (0,0)

focus - (0, 3/4)

directrix - 3/4

parabola- x^2=-3y

graph of equation:

8 0
2 years ago
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