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miv72 [106K]
3 years ago
13

Subtract the linear expressions. (-3+4x-9x)-(9-11x+7) Answer: PLZ HELP PLZ!!!

Mathematics
1 answer:
vovangra [49]3 years ago
8 0

Answer:

6x - 19

Step-by-step explanation:

(-3 + 4x - 9x) - (9 - 11x + 7)

first combine like terms

(-3 - 5x) - ( 16 - 11x)

because the negative is on the outside of the equation it gets distributed inside

-3 - 5x - 16 + 11x

and then solve

6x - 19

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23 times what equals 500
Anna11 [10]

Answer:

23 times 22 equals 506 but 23 times nothing can equal 500 thats what i think hope it helps in someway ig idk

Step-by-step explanation:

3 0
3 years ago
When n=343 college students are randomly selected and surveyed, it is found that x=110 own a car. Find a 99% confidence interval
Liono4ka [1.6K]

Answer:

The margin of error will be "0.65". A further explanation is provided below.

Step-by-step explanation:

The given values are:

n = 343

x = 110

At 99% confidence level,

\alpha = 1-99%

  =1-0.99

  =0.01

then,

\frac{\alpha}{2} =\frac{0.01}{2}

  =0.005

or,

Z_{\frac{\alpha}{2} }=Z_{0.005}

     =2.576

Now,

The point estimate will be:

⇒  \hat{P}=\frac{x}{n}

⇒      =\frac{110}{343}

⇒      =0.321

or,

⇒  1-\hat{P}=1-0.321

⇒            =0.679

The margin of error will be:

⇒  E=Z_{\frac{\alpha}{2} }\times \sqrt (\frac{(\hat{P}\times (1 - \hat{P})) }{n} )

On substituting the above values, we get

⇒      =2.576\times \sqrt{\frac{0.321\times 0.679}{343} }

⇒      =2.576\times \sqrt{\frac{0.217959}{343} }

⇒      =0.065

hence,

⇒  \hat{P}-E

⇒  0.321-0.065

⇒  0.256,0.386

6 0
3 years ago
Find the value of x<br><br><br><br><br><br> x=?
soldi70 [24.7K]

Answer:

x = 135 degrees

Step-by-step explanation:

For any simple n-gon, the sum of the interior angles is 180(n − 2) degrees. (n is the number of vertices)

180(6-2)=180(4)=720

the shape already has 2 90-degree angles, subtract both of those from total interior angle sum

720-90-90=540

the 4 angles left must make up 540 degrees

540/4=135

x=135 degrees

4 0
2 years ago
Read 2 more answers
A} work out exact value of 13822 x 623/14
grigory [225]

Answer:

615079

Step-by-step explanation:

This is the answer for A

6 0
3 years ago
YOU KNOW WHAt , it okay if u don't answer I give up I've been asking for help and hardly people that are answering .. but just h
Talja [164]

Answer:

18. A' (0, 0)

     B' (0, -4)

     C' (5 ,-5)

     D' (5, -1)

19. lines of symmetry:

Letter G- no lines

Letter E- horizontal through the middle line

Letter O- vertical and horizontal

Letter M- vertical through the middle

Letter T- vertical through the middle

Letter R- no lines

Letter Y- vertical through middle

20.

Figure 1- 4

Figure 2- 8

Figure 3- 5

7 0
3 years ago
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