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3 years ago

What is the center and radius of this circle? And how do I find it X2+y2+2x+6y-15=0

Mathematics

2 answers:

Brrunno [24]3 years ago

5 0

I never learn this at all

marusya05 [52]3 years ago

4 0

Answer:

Step-by-step explanation:

Tbh I haven’t learned this

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In a first-aid kit the ratio of large bandages to small bandages is 3 to 2. Based on this ratio, how many large bandages are in

Julli [10]

I actually dont know.what grade r u in?

7 0

3 years ago

In a lab experiment, 80 bacteria are placed in a petri dish. The conditions are such that the number of bacteria is able to doub

Effectus [21]

Answer:

The hourly growth rate is of 4.43%.

The function showing the number of bacteria after t hours is $P(t) = 80(1.0443)^t$

Step-by-step explanation:

Equation of population growth:

The equation for the population after t hours is given by:

$P(t) = P(0)(1+r)^t$

In which P(0) is the initial population and r is the growth rate, as a decimal.

The conditions are such that the number of bacteria is able to double every 16 hours.

This means that $P(16) = 2P(0)$ . We use this to find r.

$P(t) = P(0)(1+r)^t$

$2P(0) = P(0)(1+r)^{16}$

$(1+r)^{16} = 2$

$\sqrt[16]{(1+r)^{16}} = \sqrt[16]{2}$

$1 + r = 2^{\frac{1}{16}}$

$1 + r = 1.0443$

$r = 1.0443 - 1$

$r = 0.0443$

The hourly growth rate is of 4.43%.

80 bacteria are placed in a petri dish.

This means that $P(0) = 80$ .

$P(t) = P(0)(1+r)^t$

$P(t) = 80(1+0.0443)^t$

$P(t) = 80(1.0443)^t$

The function showing the number of bacteria after t hours is $P(t) = 80(1.0443)^t$

6 0

3 years ago

Can y’all help me pls

Tamiku [17]

Answer:

Step-by-step explanation:

boiii this look are as a mf

8 0

3 years ago

Help please i need this question to pass

natta225 [31]

Answer:

1. 10

2. 35

3. amelia

4. 5

this is using only the graph and not the text provided above. hopefully the graph is right :P

3 0

3 years ago

The volume of the figure 12in 12in 6in 10in 8in 18in

sladkih [1.3K]

Answer:

2304 cubic inches

Step-by-step explanation:

Volume of the green is (12)(12)(6)=864

Volume of the blue = (18)(8)(10)=1440

So the total volume is 864 + 1440 = 2304 cubic inches

3 0

2 years ago