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Naddik [55]
3 years ago
15

The table below shows the number of bacteria, y, in a Petri dish after x hours. According to the exponential best-fit model, by

what percent, to the nearest tenth, is the number of bacteria increasing each hour?
Mathematics
1 answer:
Wewaii [24]3 years ago
3 0
I need a picture to it to understand it more better and to answer the question better
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Sin(x+24) = Cos(y-x) ; Tan(z-24) - Tan(y-z)=0<br><br> find: Cos(y-z)
Delvig [45]
<h3>Answer:</h3>

Cos(y-z) = Cos(z-24)

<h3>Step-by-step explanation:</h3>

You have two equations in three unknowns, so no solution for the unknowns is possible.

The tangent equation tells you ...

... tan(z -24) = tan(y -z)

... z -24 = y -z . . . . . . take the arctangent

... cos(y -z) = cos(z -24) . . . . take the cosine

4 0
3 years ago
Which ordered pair tells the location of the smiley face on the coordinate system?
Jet001 [13]

Answer:

(5,2)

Step-by-step explanation:

You have to look to the X axis and you'll see the smiley face 5 bars/lines across from the vertex or 0.

Next, you'll need to look at the Y axis and see that the smiley face is 2 bars/lines vertically from 0.

So all you need to do is put the numbers into (x,y) and you'll get (5,2)


Hope this helps!

8 0
4 years ago
Solve l 3x-7 l = 2
Lelechka [254]

Answer:

1) Solutions are x = 3 and x = 5/3

2) Solution are x ≤ 13/2 and  x ≤ -3/2

Step-by-step explanation:

1) Given absolute inequality,

|3x-7| = 2

⇒ 3x - 7 = ± 2

⇒ 3x = 7 ± 2

\implies x=\frac{7\pm 2}{3}

x=\frac{7+2}{3}\text{ or }x=\frac{7-2}{3}

\implies x = 3\text{ or }x=\frac{5}{3}

2) l 2x-5 l ≤ 8

⇒  2x-5  ≤ ±8

⇒   2x ≤ 5 ± 8

\implies x\leq \frac{5\pm 8}{2}

x\leq \frac{5+8}{2}\text{ or }x\leq \frac{5-8}{2}

\implies x \leq \frac{13}{2}\text{ or }x\leq-\frac{3}{2}

8 0
3 years ago
Read 2 more answers
lana is using a can opener to open a can of soup every time she twists the knob of the can opener the can turns 36 degress
vlabodo [156]
It takes 10 turns. There is 360 degrees in a circle, 360/36=10. 

Answer= 10 turns

7 0
4 years ago
20 POINTS BRAINLIEST math
8090 [49]

Answer:

OPTION C

Step-by-step explanation:

Given: $ y = \sqrt{36 - 72} + 5 $

This can be rewritten as: $ y = \sqrt{36(x - 2)} + 5 $

Also, since $ \sqrt{ab} = \sqrt{a}.\sqrt{b} $

$ \implies y = \sqrt{36}.\sqrt{x - 2} + 5 $

We know that $ \sqrt{36} = 6 $

$ \implies y = 6\sqrt{x - 2} + 5 $

Hence, Option C would the answer.

6 0
3 years ago
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