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4 years ago

Question 2 (1 point)

Mathematics

1 answer:

Morgarella [4.7K]4 years ago

6 0

An equivalent expression would be 12+4x bc u used the distribution property

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What is the perimeter of rectangle ABCD on the coordinate plane? coordinate grid

vodomira [7]

Drat it all I am so bad at reading. Sorry about that it is my fault :O

6 0

3 years ago

Read 2 more answers

PLZ HELP WITH THIS QUESTION PLZ CORRECT ANSWERS!!! LOVE YOU THNX

iogann1982 [59]

Answer:

1) The value of x= 0.0642

2) $sin\theta=\frac{P}{H}=\frac{24}{25}$

$cos\theta=\frac{B}{H}=\frac{7}{25}$

$tan\theta=\frac{P}{B}=\frac{24}{7}$

$cosec\theta=\frac{H}{P}=\frac{25}{24}$

$cot\theta=\frac{B}{P}=\frac{7}{25}$

Step-by-step explanation:

1) Given : A right angle triangle with sides x and 10 and angle is 50°

To find : Value of x

Solution : Since, it is a right angle triangle

Therefore, we apply $cos\theta=\frac{B}{H}$

Where Base = x, Hypotenuse= 10, angle = 50°

$cos(50)=\frac{x}{10}$

$0.642=\frac{x}{10}$

$0.0642=x$

The value of x= 0.0642

2) Given : $sec\theta=\frac{25}{7}$

To find : Value of $sin\theta,cos\theta,tan\theta,cosec\theta,cot\theta$

Solution : We have given $sec\theta=\frac{25}{7}$

$sec\theta=\frac{H}{B}$

so, B= 7 , H=25

By Pythagoras theorem,

$H^2=P^2+B^2$

$25^2=P^2+7^2$

$625-49=P^2$

$\sqrt{576}=P^2$

$P=24$

Now, P=24, B=7, H=25

$sin\theta=\frac{P}{H}=\frac{24}{25}$

$cos\theta=\frac{B}{H}=\frac{7}{25}$

$tan\theta=\frac{P}{B}=\frac{24}{7}$

$cosec\theta=\frac{H}{P}=\frac{25}{24}$

$cot\theta=\frac{B}{P}=\frac{7}{25}$

5 0

3 years ago

Each of the s swimmers on the relay team swam an equal number of the 8 laps in a race. Write an expression that shows how many l

ExtremeBDS [4]

The number of laps that Swimmer A swam was 50 laps.

<h3>How to form mathematical expression from the given description?</h3>

You can represent the unknown amounts by the use of variables. Follow whatever the description is and convert it one by one mathematically. For example if it is asked to increase some item by 4 , then you can add 4 in that item to increase it by 4. If something is for example, doubled, then you can multiply that thing by 2 and so on methods can be used to convert description to mathematical expressions.

Let we suppose that:

Swimmer A swam x laps

Swimmer B swam y laps.

Then, according to the given data, we have:

x + y = 175 laps

y = 25 + 2x

(25 more than twice of laps of A is the number of laps of B).

Thus, we get a system of two equations:

x + 25 + 2x = 175

3x + 25 = 175

3x = 175 - 25 = 150

x = 50

As x is the number of laps Swimmer A swam, thus, the number of laps that Swimmer A swam was 50 laps.

To know more about equations follow

brainly.com/question/2972832

#SPJ1

5 0

2 years ago

Divine bought 96 tins of milk for 3360.00 naira and sold them at 39.00 naira each. calculate his profit on the 96 tins of milk

borishaifa [10]

Based on the calculations, the profit on 96 tins of milk is equal to 384 naira.

<u>Given the following data:</u>

Quantity of milk = 96 tins

Cost price = 3360.00 naira

Selling price = 39.00 naira each.

To calculate the profit on this 96 tins of milk:

<h3>How to calculate profit.</h3>

In this exercise, you're required to determine the amount of profit that was made by Divine for selling 96 tins of milk at 39.00 naira each.

First of all, we would calculate the total sales price or the amount of money he made from selling 96 tins of milk at 39.00 naira each.

$Total\;sales = 96 \times 39$

Total sales = 3744 naira.

Now, we can calculate the profit by using this formula:

$Profit = Total\;sales - Cost\;price$

Substituting the parameters into the formula, we have;

$Profit = 3744 -3360$

Profit = 384 naira.

Read more on cost price here: brainly.com/question/933761

3 0

2 years ago

HURRY PLEASE! I BEG ITS FOR POINTS

gtnhenbr [62]

Answer:

1 and 3

Step-by-step explanation:

Given the system of two equations

$\left\{\begin{array}{l}Px+Qy=R\\ \\Tx+Uy=V\end{array}\right.$

When you add, subtract, multiply the equations of the system, you get equivalent system of equations (with the same solution).

1. Add these two equations to get the system

$\left\{\begin{array}{l}Px+Qy=R\\ \\Px+Tx+QY+Uy=R+V\end{array}\right.\Rightarrow \left\{\begin{array}{l}Px+Qy=R\\ \\(P+T)x+(Q+U)y=R+V\end{array}\right.$

Hence, option 1 is correct.

2. Multiply the second equation by 2 and add two equations:

$\left\{\begin{array}{l}Px+Qy=R\\ \\2Tx+2Uy=2V\end{array}\right.\Rightarrow \left\{\begin{array}{l}Px+Qy=R\\ \\(P+2T)x+(Q+2U)y=R+2V\end{array}\right.$

Since $R+2V\neq R-2V,$ this option is false

3. Subtract two equations:

$\left\{\begin{array}{l}Tx-Px+Uy-Qy=V-R\\ \\Tx+Uy=V\end{array}\right.\Rightarrow \left\{\begin{array}{l}(T-P)x+(U-Q)y=V-R\\ \\Tx+Uy=V\end{array}\right.$

Option 3 is correct.

4. Since $U-Q\neq Q+U$ , option 4 is false

5. Multiply the second equation by 5 and subtract the first equation:

$\left\{\begin{array}{l}Px+Qy=R\\ \\5Tx+5Uy=5V\end{array}\right.\Rightarrow \left\{\begin{array}{l}(5T-P)x+(5U-Q)y=5V-R\\ \\Tx+Uy=V\end{array}\right.$

Since $V-5R\neq 5V-R$ , this option is false.

6 0

3 years ago