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Semmy [17]
3 years ago
11

4+3x=28 what is the value of 'x'

Mathematics
1 answer:
Crazy boy [7]3 years ago
5 0

Answer:

x=8

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

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UCF is a major Metropolitan University located in Orlando Florida. UCF is advertising their bachelor in Economics with the stati
Arlecino [84]

Answer:

The claim is rejected

Step-by-step explanation:

Claim: UCF is advertising their bachelor in Economics with the statistic that the starting salary of a graduate with a bachelor in economics is $ 48,500 according to Payscale (2013-13).

Null hypothesis: H_0: \mu = 48500

Alternate hypothesis :H_a : \mu \neq 48500

n = 50

Since n is more than 30 .

So we will use Z test

x=43350

Standard deviation = 15000

Z=\frac{x-\mu}{\frac{s}{\sqrt{n}}}\\Z=\frac{43350-48500}{\frac{15000}{\sqrt{50}}}\\Z=-2.42

Refer the z table

p value = 0.00776

\alpha = 0.01

p value < \alpha

So, We are failed to accept null hypothesis

Hence The claim is rejected

5 0
3 years ago
Identify the volume and surface area in terms of π of a sphere with a great circle area of 225π ft2
Dafna1 [17]
The answer is going to be v= 4500ft3;S=900ft2
7 0
3 years ago
Read 2 more answers
The value of x is 4 times the value of y.how to writ that in math
kakasveta [241]
I’m not exactly sure what you mean by “write it in math,” however I can tell you what I think.
4y=x
(It says that x is 4 times the value of y which means that y times 4 is x.)
3 0
3 years ago
2/3 (3x+9)=-2 (2x+6)​
rosijanka [135]

Answer: x=−3

Step-by-step explanation: Let's solve your equation step-by-step.

2

3

(3x+9)=−2(2x+6)

Step 1: Simplify both sides of the equation.

2

3

(3x+9)=−2(2x+6)

(

2

3

)(3x)+(

2

3

)(9)=(−2)(2x)+(−2)(6)(Distribute)

2x+6=−4x+−12

2x+6=−4x−12

Step 2: Add 4x to both sides.

2x+6+4x=−4x−12+4x

6x+6=−12

Step 3: Subtract 6 from both sides.

6x+6−6=−12−6

6x=−18

Step 4: Divide both sides by 6.

6x

6

=

−18

6

x=−3

5 0
3 years ago
Read 2 more answers
An airplane pilot over the Pacific sights an atoll at an angle of depression of 5. At this time, the horizontal distance from th
kotykmax [81]
B) 405 m
tan(5) = x/4629
4629tan(5) = 404.9
Round up
x=405 m
4 0
2 years ago
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