Ask question

Ask question

All categories

AleksAgata [21]

4 years ago

15

A biologist determined that the quantity of bacteria in a petri dish decreases by half every day of the study. If there were 8 g

rams of bacteria at the beginning of the study, predict how many grams will be left after 3.5 days. Round to the nearest hundredth

1 answer:

Anna [14]4 years ago

3 0

The sender is .75 grams

You might be interested in

When 80% of a is added to the number, the result is 252. What is the number

wariber [46]

Use the equation .8x + x = 252
x is the number, and .8 is the decimal equivalent of 80%.

1.8x = 252

x = 140

6 0

4 years ago

Jaylah has two packages of trail mix. The first package weighs 2.40 pounds and the second package weighs 3.25 pounds. She mixes

navik [9.2K]

She can make up to 22 bags because you have to add 2.40 and 3.25 together to get 5.65 then divide by .25 to get 22.6 she can make a total of 22 with .6 left over

7 0

3 years ago

Enter the patriot equivalent to Tan (A) <br><br> And<br><br> Enter the ratio equivalent to cos (B)

PolarNik [594]

Answer:

$(a)\ \tan A = \frac{5}{12}$

$(b)\ \cos B = \frac{5}{13}$

Step-by-step explanation:

Given

See attachment for triangles

Solving (a)

$\tan(A)$

The tan of an angle is:

$\tan(\theta) = \frac{Opposite}{Adjacent}$

From the given triangle.

$Opposite = 5$

$Adjacent = 12$

So, we have:

$\tan A = \frac{5}{12}$

Solving (b)

$\cos(B)$

The cos of an angle is:

$\cos(\theta) = \frac{Adjacent}{Hypotenuse}$

From the given triangle.

$Adjacent = 5$

$Hypotenuse = 13$

So, we have:

$\cos B = \frac{5}{13}$

3 0

3 years ago

Can someone please help with this it’s worth 19 points?

nexus9112 [7]

Answer:

54, 36

Step-by-step explanation:

67+59+x=60*3

126+x=180

x=54

54 cones on Sunday

_____________________________________

180+x=54*4

180+x=216

x=36

36 cones on Monday

6 0

3 years ago

Carlos earns $11.80 per hour working after school. He needs at least $410 to buy a refurbished cell phone. Write and solve an in

mart [117]

Like 3 hours I think to make it 410

6 0

3 years ago