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3 years ago

Which graph represents this system? y=1/2x+3 y=3/2x-1

Mathematics

1 answer:

Zigmanuir [339]3 years ago

7 0

It’s neither of the graphs that are showed in the photo

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What is the approximate value of x in the equation below.

fomenos

Answer: First Option

$x= -3.396$

Step-by-step explanation:

We have the following expression

$log_{\frac{3}{4}}25 = 3x -1$

To solve the equation add 1 to both sides of the equality

$log_{\frac{3}{4}}25 +1= 3x -1+1$

$log_{\frac{3}{4}}25 +1= 3x$

Divide between 3 to both sides of the equation

$\frac{log_{\frac{3}{4}}25 +1}{3}= x$

$x= \frac{-11.19 +1}{3}$

$x= -3.396$

The answer is the first option

3 0

4 years ago

A factory can work its employees no more than 6 days a week, and no less than 2 days per

Molodets [167]

Answer:

Step-by-step explanation:

Answer: A.) 2 <= X <= 6

B.) 13 < = X < = 39

Step-by-step explanation:

Given that a factory can work its employees no more than 6 days a week, that is, less than or equal to 6 days a week

And also, no less than 2 days per week. That is, greater than or equal to 2 day a week.

Let X represent the number of days an employee can work per week.

According to the first statement,

X < = 6

According to the second statement,

X >= 2

An inequality to represent the range of days an employee can work will be

2 < = X <= 6

To represent the range in hours, first convert the number of days to hour. Given that an employee can work

1 day = 6.5 hours

2 days = 2 × 6.5 = 13 hours

5 days = 6 × 6.5 = 39 hours

Therefore, the range will be

13 < = X < = 39

6 0

3 years ago

A class has 40 students. The teacher asks how many students in the class have siblings and finds 3/10 of the students have sibli

leva [86]

Answer:

12 students

Step-by-step explanation:

First, find the percentage of how many students have siblings:

3/10 = 0.3 = 30%

40 * 0.3 = 12

This means that 30% of this class are 12 students. These 12 students have siblings.

Hope this helps!

6 0

3 years ago

Plz help asap geometry!!

strojnjashka [21]

Answer:

2688

Step-by-step explanation:

To determine the number of different meals he could order, multiply the numbers of choices together

4 appetizers *4 meats* 6 vegetables * 4 desserts* 7 drinks =2688

There are 2688 different meals

3 0

4 years ago

Read 2 more answers

About how accurately must the tank's exterior diameter be measured to calculate the amount of paint it will take to paint the si

kondaur [170]

Answer: The error of the diameter would be 5% .

Step-by-step explanation:

Since we have given that

$S=2\pi rh$

Here, r is the radius

h is the height

So, it becomes,

$S=2\pi (\dfrac{D}{2})h\\\\S=\pi Dh\\\\S=\pi D\times 10\\\\S=10\pi D$

So, we will derivate S wrt D, we get that

$\dfrac{dS}{dD}=10\pi\\\\dS=10\pi dD$ ---------------------(1)

As we have given that

it will take to paint the side of the tank to within 5% of the true amount.

So, it becomes,

$dS=0.5\pi D$ ---------------(2)

So, from (1) and (2) , we get that

$0.5\pi D=10\pi dD\\\\\dfrac{0.5\pi}{10\pi}=\dfrac{dD}{D}\\\\0.05=\dfrac{dD}{D}=5\%$

Hence, the error of the diameter would be 5% .

5 0

4 years ago