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3 years ago

12

PLS HELP TELL WHETHER X AND Y SHOW DIRECT VARIATION!!!

1 answer:

jarptica [38.1K]3 years ago

4 0

Answer:

Try using this calculator

Step-by-step explanation:

https://www.mathpapa.com/algebra-calculator.html

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HELPPP PLEASE!!!! SHOW ALL WORK!!!

Bezzdna [24]

Answer:

x=54

Step-by-step explanation:

these two angles are supplementary to each other. this is because alternate interior angles are congruent, and 2x+42 degrees is supplementary to the alternate interior angle of x-24 degrees. so, we can add these two numbers up and set it equal to 180.

2x+42+x-24=180

3x+18=180

3x=162

x=54

if this question is asking for x, 54 is the answer. if it is asking for the angle measures, plug in 54 for x for each angle and solve.

3 0

3 years ago

Select all the answers choices that would NOT be part of the domain of f o g(x) if:

SSSSS [86.1K]

fog(x)

$\\ \rm\rightarrowtail \dfrac{(2/x+1)+3}{4/x+1)-1}$

$\\ \rm\rightarrowtail \dfrac{2+3x+3/x+1}{4-x-1/x+1}$

$\\ \rm\rightarrowtail \dfrac{3x+5}{3-x}$

So

$\\ \rm\rightarrowtail 3-x\neq 0$

$\\ \rm\rightarrowtail x\neq 3$

Option h is correct

7 0

2 years ago

A boy decided to save by an unusual method.He put 1cent, the first week.2cent in the second week,4xent in the third week,8cent i

lesya692 [45]

Answer:

Step-by-step explanation:

for 1st week=1 ¢

for 2nd week= 2¢

for 3rd week= 4¢

for 4th week=8¢

for 5th week=16¢

for 6th week=32¢

for 7th week=64¢

for 8th week=64+64=128¢

for 9th week= 128+128=256¢

for 10th week= 256+256=512¢

.: he saved a total of

1+2+4+8+16+32+64+128+256+512=1023¢

1023¢=1023/100=$10.23

4 0

3 years ago

Thirty-three college freshmen were randomly selected for an on-campus survey at their university. The participants' mean GPA was

Ivan

Answer: $\pm0.1706$

Step-by-step explanation:

Given : Sample size : n= 33

Critical value for significance level of $\alpha:0.05$ : $z_{\alpha/2}= 1.96$

Sample mean : $\overline{x}=2.5$

Standard deviation : $\sigma= 0.5$

We assume that this is a normal distribution.

Margin of error : $E=\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$

i.e. $E=\pm (1.96)\dfrac{0.5}{\sqrt{33}}=\pm0.170596102837\approx\pm0.1706$

Hence, the margin of error is $\pm0.1706$

7 0

3 years ago

Drag and Drop the correct answer into the boxes below.

scoray [572]

Answer:

the first blank is 100

the second is 80

Step-by-step explanation:

7 0

2 years ago