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2 years ago

PLS HELP ASAP THANKS ILL GIVE BRAINLKEST PLS THANKS PLS ASAP PLS PLS HELP ASAP THANKS

Mathematics

2 answers:

Elina [12.6K]2 years ago

7 0

The answer is D 13/n=12/36

Alenkinab [10]2 years ago

5 0

Answer:

So ofc it's third

Step-by-step explanation:

You'll need to use the Pythagorean theorem:

a²+b²=c²

36² + 15² = c²

1296 + 225 = c²

1521 = c²

$\sqrt{x} 1521\\$ = 39

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The diameter of cold virus cell is about 3x10-9 meter,and the diameter of a streptoccus bacterium cell is about 9x10-7 meter. Wh

Archy [21]

Here we need to compare the orders of magnitude of two measures.

We will see that the bacteria is 300 times larger than the virus.

We know that:

The diameter of the virus-cell is:

$D_v = 3 \cdot 10^{-9} m$

The diameter of the bacteria cell is:

$D_b = 9 \cdot 10^{-7} m$

So, to compare them, first notice that both are in the same units, meters, so we only need to compare the numbers.

Is common sense to identify the one with the largest exponent as the largest number, and the largest exponent is -7, thus the bacteria should be the larger one.

But let's prove this with math, remember the property:

$\frac{a^n}{a^m} = a^{n - m}$

Let's take the quotient between the diameters and see what we get, I will use the diameter of the bacteria in the numerator, thus if the quotient is larger than 1, it would mean that the bacteria is greater and by how much.

$quotient = \frac{ 9 \cdot 10^{-7} m}{ 3 \cdot 10^{-9} m} = \frac{9}{3} \cdot 10^{-7 + 9}\\\\= 3*10^2$

So we can say that the bacteria is 3*10^2 = 3*100 = 300 times larger than the virus.

If you want to learn more, you can read:

brainly.com/question/4953281

8 0

2 years ago

A recipe for chocolate cake calls for 3.5 cups of flour the recipe makes seven servings how many cups of flour are needed to mak

Kamila [148]

Answer:

Step-by-step explanation:

If 3.5 cups of flour makes 7 servings, then 0.5 cups of flour are needed for each serving if you divide 3.5 by 7, 10 times 0.5 is equal to 5.

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3 years ago

Given that lines b and c are parallel, select all that apply.

dangina [55]

Answer:

Angles 7, 2, and 6

Step-by-step explanation:

Angle 7 is congruent by corresponding angles to angle 3.

Angle 2 is congruent by vertical angles to angle 3.

Angle 6 is congruent by vertical angles to angle 7, which is congruent to angle 3, so angle 3 and angle 6 must also be congruent.

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2 years ago

Nicolas says that (2^6)(2^6) equals 2^12 and also equals 4^6 . Do you agree?

alex41 [277]

Answer:

Nicolas is correct.

4^6 =4096

2^12 = 4096

4 0

3 years ago

Help me with this question please

ivolga24 [154]

Answer:

D. 2019

Step-by-step explanation:

So I started by rewriting the function f(x)

1000 = 10^3 so

f(x)=10^3 times 1.03^x

1.03 = 103/100 so

f(x)= 10^3 times (103/100)^x

to raise a fraction to a power you just raise the numerator and denominator to that power so

f(x)= 10^3 times 103^x/100^x

change it to exponential form with a base of 10

f(x)=10^3 times 103^x/10^2x

then you can reduce it with the 10^3

f(x)=103^x/10^2x-3

so now that thats in more of a standard form you can find the intersection of the two functions

which is at (9.012,1305.244)

x is the number of years after 2010, so they will be equal ~9 years after 2010, which is 2019.

7 0

2 years ago