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3 years ago

13

bacteria in a culture increased Exponentially. If the the number of bacteria doubles in 3 hours in how many hours will the numbe

r of bacteria triple?

1 answer:

Elis [28]3 years ago

7 0

6 hours because
double- 3 hours
triple- 6 hours

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84 times 0.24 using area model

Damm [24]

20.16 hopefully it’s right

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3 years ago

Which equation represents a line that passes through (5, 1) and has a slope of 1/2?

lesya692 [45]

Answer:

C

Step-by-step explanation:

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

here m = $\frac{1}{2}$ and (a, b) = (5, 1), so

y - 1 = $\frac{1}{2}$ (x - 5)

8 0

3 years ago

a scalene right triangle has a hypotenuse with a length of 50 cm. The length of one leg is twice the length of the other. What a

zheka24 [161]

Let
x------------> <span>The length of one leg
</span>y------------> <span>The length of second leg
</span>
we know that
H=50 cm
x=2y
<span>applying the Pythagorean theorem

H</span>²=x²+y²--------> 50²=(2y)²+y²---------> 2500=4y²+y²-----> y²=2500/5
y=√500--------> y=22.4 cm
<span>so
</span>x=2y--------> x=2*22.4--------> x=44.8 cm
<span>
the answer is
</span><span>the lengths of the legs of the triangle are
</span>44.8 cm
and
22.4 cm

4 0

3 years ago

———Help pleaseeeee———

Maslowich

Answer:

Slope of line is $\pi$

Step-by-step explanation:

Given that the company logo has four concentric circles.

To plot the line on the graph take point as ( Diameter, Circumference )

Circumference of a circle is given by C= $\pi D$

Where D is the diameter.

To draw a line, we need at least two-point.

Now,

Take D=1

Circumference of a circle will be C= $\pi D=\pi$

Required point is (1, $\pi$ )

Take D=0

Circumference of a circle will be C= $\pi D=0 \pi$

Required point is (0,0)

The slope of line is given by s= $\frac{Y2-Y1}{X2-X1}$

Hence,

s= $\frac{Y2-Y1}{X2-X1}$

s= $\frac{0-[tex]\pi$ }{0-1}[/tex]

s= $\frac{[tex]\pi$ }{1}[/tex]

s= $\pi$

Thus, Slope of line is $\pi$

7 0

3 years ago

Instructions: Problem 1 ! Find the missing angle in the image below. Do not include spaces in your answers

sweet-ann [11.9K]

Answer:

40 degrees

Step-by-step explanation:

The 100 degree angle is supplementary to angle CED. This means CED will end up being 80 degrees. Since the angles in all triangles equate to 180 degrees 80 + 60 + angle D must equal 180 degrees. Therefore, angle D has to be 40 degrees.

5 0

3 years ago