Mathematics : asked on zeesharpe05

16.12.2020

B=
r+k
3
110
f for r

3

Step-by-step answer

09.07.2023, solved by verified expert

Mathematics, DAV Post Graduate College

7 024 answers

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Step-by-step explanation:1. Write the expression.

2. Divide by f on both sides.

3. Multiply both sides by 3.

3. Substract k from both sides.

4. Reorganize.

.

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Mathematics

B= r+k 3 110 f for r

Step-by-step answer

P Answered by Master

$r=\frac{3B}{f}-k$ .

Step-by-step explanation:1. Write the expression.

$B=(\frac{r+k}{3} )f$

2. Divide by f on both sides.

$\frac{B}{f} =[(\frac{r+k}{3} )f]/f\\ \\\frac{B}{f} =\frac{r+k}{3}$

3. Multiply both sides by 3.

$\frac{3B}{f} =r+k$

3. Substract k from both sides.

$\frac{3B}{f}-k =r+k-k\\ \\\frac{3B}{f}-k =r$

4. Reorganize.

$r=\frac{3B}{f}-k$ .

Mathematics

Consider triangles with the following measurements. if two sides are given, use the law of cosines to find the measure of the third side. if three sides are given, use the law of cosines to find the measure of the angle between a and a. a = 4, = 6, m∠ = 35° b. a = 2, = 3, m∠ = 110° c. a = 5, = 5, m∠ = 36° d. a = 7.5, = 10, m∠ = 90° e. a = 4.4, = 6.2, m∠ = 9° f. a = 12, = 5, m∠ = 45° g. a = 3, = 6, m∠ = 60° h. a = 4, = 5, c = 6 i. a = 1, = 1, c = 1 j. a = 7, = 8, c = 3 k. a = 6, = 5.5, c = 6.5 l. a = 8, = 5, c = 1 m. a = 4.6, = 9, c = 11.9

Step-by-step answer

P Answered by Specialist

Answers are in explanation part.

Step-by-step explanation:

Law of Cosines for side c: $c=\sqrt{a^2+b^2-2ab\cos C}$

a) c = 3.561

b) c = 4.136

c) c = 3.09

d) c = 12.5

e) c = 1.978

f) c = 9.173

g) c = 5.196

Law of Cosines for angle C: $C=cos^{-1}(\frac{a^2+b^2-c^2}{2ab})$

h) C = 82.819°

i) C = 60°

j) C = 21.787°

k) C = 68.676°

l) Sides (8, 5, 1) cannot form a triangle. It is impossible.

m) C = 118.454°

Mathematics

Consider triangles with the following measurements. if two sides are given, use the law of cosines to find the measure of the third side. if three sides are given, use the law of cosines to find the measure of the angle between a and a. a = 4, = 6, m∠ = 35° b. a = 2, = 3, m∠ = 110° c. a = 5, = 5, m∠ = 36° d. a = 7.5, = 10, m∠ = 90° e. a = 4.4, = 6.2, m∠ = 9° f. a = 12, = 5, m∠ = 45° g. a = 3, = 6, m∠ = 60° h. a = 4, = 5, c = 6 i. a = 1, = 1, c = 1 j. a = 7, = 8, c = 3 k. a = 6, = 5.5, c = 6.5 l. a = 8, = 5, c = 1 m. a = 4.6, = 9, c = 11.9

Step-by-step answer

P Answered by Specialist

Answers are in explanation part.

Step-by-step explanation:

Law of Cosines for side c: $c=\sqrt{a^2+b^2-2ab\cos C}$

a) c = 3.561

b) c = 4.136

c) c = 3.09

d) c = 12.5

e) c = 1.978

f) c = 9.173

g) c = 5.196

Law of Cosines for angle C: $C=cos^{-1}(\frac{a^2+b^2-c^2}{2ab})$

h) C = 82.819°

i) C = 60°

j) C = 21.787°

k) C = 68.676°

l) Sides (8, 5, 1) cannot form a triangle. It is impossible.

m) C = 118.454°

StudenGPT

-Sc Q 31 T Which system of inequalities is represented by the graph? Fock O Terms Use IOI O Q A T O Z y≥ 3x+6 y -x-6 y x y≤ 3x+6 y - x-6 y x O y≤ x+6 y -3x - 6 y x 12 y≥ ²x+6 y -3x - 6 y x 2 com W S # 3 x alt E D $ V C R % F L.P 5 T V G B & 7 H -10 -8 -6 -4 18 204 U 8 00 J N 19 -- -6 -8 -10 10 M 8 6 2 --4- 4 110 K insert 2 V O 4 6 alt a 8 V .. 10 E

Step-by-step answer

P Answered by Studen AI

The system of inequalities represented by the graph is:

y ≥ 3x + 6 (represented by the line passing through the points (0, 6) and (-2, 0) with shaded region above the line)

y < -x - 6 (represented by the line passing through the points (0, -6) and (-6, 0) with shaded region below the line)

So, the correct answer is:

y ≥ 3x + 6 (Option D)

StudenGPT

-Sc Q 31 T Which system of inequalities is represented by the graph? Fock O Terms Use IOI O Q A T O Z y≥ 3x+6 y -x-6 y x y≤ 3x+6 y - x-6 y x O y≤ x+6 y -3x - 6 y x 12 y≥ ²x+6 y -3x - 6 y x 2 com W S # 3 x alt E D $ V C R % F L.P 5 T V G B & 7 H -10 -8 -6 -4 18 204 U 8 00 J N 19 -- -6 -8 -10 10 M 8 6 2 --4- 4 110 K insert 2 V O 4 6 alt a 8 V .. 10 E

Step-by-step answer

P Answered by Studen AI

1

The system of inequalities represented by the graph is:

y ≥ 3x + 6 (represented by the line passing through the points (0, 6) and (-2, 0) with shaded region above the line)

y < -x - 6 (represented by the line passing through the points (0, -6) and (-6, 0) with shaded region below the line)

So, the correct answer is:

y ≥ 3x + 6 (Option D)

Chemistry

Determine the rate law and the value of k for the following reaction using the data provided. 2 NO(g) + O2(g) 2 NO2(g) [NO]i (M) [O2]i (M) Initial Rate (M-1s-1) 0.030 0.0055 8.55 x 10^-3 0.030 0.0110 1.71 x 10^-2 0.060 0.0055 3.42 x 10^-2 Options: A. Rate = 57 M-1s-1[NO][O2] B. Rate = 3.8 M-1/2s-1[NO][O2]1/2 C. Rate = 3.1 x 10^5 M-3s-1[NO]2[O2]2 D. Rate = 1.7x10^3 M-2s–1[NO]2[O2]

Step-by-step answer

P Answered by PhD

see attached

Explanation:

Two methods are shown in attached notes... Method I is based upon Experimental Rate Trends; Method II is the 'Ratio Method'.

Determine the rate law and the value of k for the following reaction using the data provided. 2 NO(g

Determine the rate law and the value of k for the following reaction using the data provided. 2 NO(g

Computers and Technology

Write a C program that reads two hexadecimal values from the keyboard and then stores the two values into two variables of type unsigned char. Read two int values p and k from the keyboard, where the values are less than 8. Replace the n bits of the first variable starting at position p with the last n bits of the second variable. The rest of the bits of the first variable remain unchanged. Display the resulting value of the first variable using printf %x.Test Cases:n = 3;p=4;input: a= 0x1f (0001 1111) b = c3 (1100 0011); output: f (0000 1111)n

Step-by-step answer

P Answered by Master

Solution :

#include

#include

#include

//Converts $\text{hex string}$ to binary string.

$\text{char}$ * hexadecimal $\text{To}$ Binary(char* hexdec)

{

long $\text{int i}$ = 0;

char *string = $(\text{char}^ *) \ \text{malloc}$ (sizeof(char) * 9);

while (hexdec[i]) {

//Simply assign binary string for each hex char.

switch (hexdec[i]) {

$\text{case '0'}:$

strcat(string, "0000");

break;

$\text{case '1'}:$

strcat(string, "0001");

break;

$\text{case '2'}:$

strcat(string, "0010");

break;

$\text{case '3'}:$

strcat(string, "0011");

break;

$\text{case '4'}:$

strcat(string, "0100");

break;

$\text{case '5'}:$

strcat(string, "0101");

break;

$\text{case '6'}:$

strcat(string, "0110");

break;

$\text{case '7'}:$

strcat(string, "0111");

break;

$\text{case '8'}:$

strcat(string, "1000");

break;

$\text{case '9'}:$

strcat(string, "1001");

break;

case 'A':

case 'a':

strcat(string, "1010");

break;

case 'B':

case 'b':

strcat(string, "1011");

break;

case 'C':

case 'c':

strcat(string, "1100");

break;

case 'D':

case 'd':

strcat(string, "1101");

break;

case 'E':

case 'e':

strcat(string, "1110");

break;

case 'F':

case 'f':

strcat(string, "1111");

break;

default:

printf("\nInvalid hexadecimal digit %c",

hexdec[i]);

string="-1" ;

}

i++;

}

return string;

}

int main()

{ //Take 2 strings

char *str1 =hexadecimalToBinary("FA") ;

char *str2 =hexadecimalToBinary("12") ;

//Input 2 numbers p and n.

int p,n;

scanf("%d",&p);

scanf("%d",&n);

//keep j as length of str2

int j=strlen(str2),i;

//Now replace n digits after p of str1

for(i=0;i<n;i++){

str1[p+i]=str2[j-1-i];

}

//Now, i have used c library strtol

long ans = strtol(str1, NULL, 2);

//print result.

printf("%lx",ans);

return 0;

}

Chemistry

Determine the rate law and the value of k for the following reaction using the data provided. 2 NO(g) + O2(g) 2 NO2(g) [NO]i (M) [O2]i (M) Initial Rate (M-1s-1) 0.030 0.0055 8.55 x 10^-3 0.030 0.0110 1.71 x 10^-2 0.060 0.0055 3.42 x 10^-2 Options: A. Rate = 57 M-1s-1[NO][O2] B. Rate = 3.8 M-1/2s-1[NO][O2]1/2 C. Rate = 3.1 x 10^5 M-3s-1[NO]2[O2]2 D. Rate = 1.7x10^3 M-2s–1[NO]2[O2]

Step-by-step answer

P Answered by PhD

see attached

Explanation:

Two methods are shown in attached notes... Method I is based upon Experimental Rate Trends; Method II is the 'Ratio Method'.

Determine the rate law and the value of k for the following reaction using the data provided. 2 NO(g

Determine the rate law and the value of k for the following reaction using the data provided. 2 NO(g

Mathematics

You can buy jars of the same jam in 2 sizes large jar:440g for £1.54 small jar:340g for £1.26 By considering the price per gram, work out which jar is the best value for money. Working must be shown

Step-by-step answer

P Answered by PhD

Answer: 440 grams for 1.54 is the better value
Explanation:
Take the price and divide by the number of grams
1.54 / 440 =0.0035 per gram
1.26 / 340 =0.003705882 per gram
0.0035 per gram < 0.003705882 per gram

Mathematics

An ice cream shop offers 5 different flavors of ice cream and 9 different toppings. How many choices are possible for a single serving of ice cream with one topping?

Step-by-step answer

P Answered by PhD

For 1 flavor there are 9 topping

Therefore, for 5 different flavors there will be 5*9 choices

No of choices= 5*9

=45

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