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KATRIN_1 [288]
3 years ago
10

Convert 8 weeks into days.

Mathematics
1 answer:
Lyrx [107]3 years ago
8 0

Answer:

Tris-HCl (0.5M Tris Base, pH7.6):

Trizma Base ---------------------------------- 61 g

Distilled water ------------------------------- 1000 ml

Adjust pH 7.6 using concentrated HCl

Store this solution at room temperature. Dilute 1:10 with distilled water before use

and adjust pH if necessary.

20X Tris-HCl (1M Tris Base, pH7.6):

Trizma Base ---------------------------------- 122 g

Distilled water ------------------------------- 1000 ml

Adjust pH 7.6 using concentrated HCl

Store this solution at room temperature. Dilute 1:20 with distilled water before use

and adjust pH if necessary.

10X Tris-HCl-Tween 20 (0.5M Tris Base, 0.5% Tween 20, pH7.6):

Trizma Base ---------------------------------- 61 g

Distilled water ------------------------------- 1000 ml

Adjust pH 7.6 using concentrated HCl and then add 5 ml of Tween 20.

Store this solution at room temperature. Dilute 1:10 with distilled water before use

and adjust pH if necessary.

Note: Tris-HCl Buffer is used for specific cases of immunohistochemical staining.

*** OR you can use Tris Base to make Tr

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What is the measure of AngleS to the nearest whole degree? 19° 26° 30° 33°
ahrayia [7]

Answer:

A= 33 degrees

A=33°

Step-by-step explanation:

THIS IS THE COMPLETE QUESTION BELOW, ALSO CHECK THE ATTACHMENT FOR THE DIAGRAM

Law of cosines: a2 = b2 + c2 – 2bccos(A) What is the measure of S to the nearest whole degree? 19° 26° 30° 33°

EXPLANATION

Accordingto the law of cosines in

trigonometry, which gives the relationship between the lengths of the sides of a triangle to the cosine of one of its angles.

From the diagram at the attachment, the sides of the triangle are:a=10 ,b=17 ,c=18

The law can is described using the formula below;

a² = b²+ c² – 2*b*c*cos(A)

To get the angle cos(A), we make cos(A) subject of formula

cos(A)=[b²+c²-a²]/[2*b*c]

Then inserting the figures

cos (A)=[17²+18²-10²]/[2*17*18]

cos (A)=0.8382

Then find the inverse of cos(A)

A=arc cos (0.8382)

A=33.05°

A=33°( approximately)

4 0
4 years ago
Read 2 more answers
PQ has endpoints P(-3,2) and Q(3,-2). Find the coordinates of the midpoint of PQ
hodyreva [135]

Answer:

(0,0)

Step-by-step explanation:

For this, you need to use the midpoint formula.

(-3) + 3                      2 + (-2)

--------------      ,       ----------------

     2                               2

This leads to:

-3 + 3 = 0 -> 0/2

x = 0

3 + (-3) = 0 -> 0/2

The answer is:

(0, 0)

6 0
2 years ago
HELPPPPPPPP PLEASE !!!!!!!!!!!!!!!!!!!!!!!!!!!
s2008m [1.1K]

Answer whats the question?

Step-by-step explanation:

7 0
3 years ago
A rectangular plot of farmland will be bounded on one side by a river and on the other three sides by a​ single-strand electric
wlad13 [49]

Answer:

x = 600 m

y = 1200 m

Amax = 720000  m²

Step-by-step explanation:

Let call x the smaller side of the rectangular plot and y the largest ( we assume we have one y side bounded by a river: Then

A(p)  Area of the plot x*y

A(p) = x*y

And perimeter of the plot ( to be fenced ) is:

P(p)  = 2*x + y = 2400     ⇒  y  = 2400 - 2*x

Area of rectangular plot as function of x:

A(x) = x * ( 2400 - 2x )

Taking derivatives on both sides of the equation

A´(x) = ( 2400 - 2x ) + (-2) *x    ⇒  A´(x) = ( 2400 - 2x ) - 2x

A´(x) = 0      ⇒   2400 - 4x = 0    ⇒  4x  = 2400  

x = 600 m

And y =  2400 - 2*x

y = 2400 - 1200

y = 1200 m

And the largest enclosed area is  Amax = 1200*600

Amax = 720000 m²

4 0
4 years ago
7.A pattern has 14 blue triangles to every 18 yellow triangles. What is the ratio of yellow triangles to blue triangles?
Setler79 [48]

Answer:

9:7.

Step-by-step explanation:

14 blue triangles and 18 yellow triangles,

The LCM of them both is 2 so we can divide both of the numbers by 2.

14 divided by 2 = 7

18 divided by 2 = 9

Since they asked for the ratio of <u><em>yellow triangles to blue triangles</em></u>,

The answer will be <em><u>9:7</u></em>.

Hope that helps. x

6 0
2 years ago
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