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Snowcat [4.5K]
3 years ago
7

30 – 2x = 2(3x + 3) using PEMDAS

Mathematics
2 answers:
soldi70 [24.7K]3 years ago
8 0

Answer:

Hey there! First you start with parenthesis! So distribute the 2 to 3x. There you get 6x. Now distribute to the 3. You get 6. Now you move the 2x over to the right side. Getting 30=4x+6.. Now move the 6 over to the 30. You get 24=4x..Now you divide, getting the answer 6! Hope this helps...

Answer is 6

tekilochka [14]3 years ago
7 0
30-2x=2(3x+3)
30-2x=6x+6
+2x=+2x
30= 8x+6
-6=-6
24=8x
/8=8/
Answer is 3
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Ugo [173]

Answer:

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Step-by-step explanation:

The general equation of curve is given as:

y = x² + ax + b

The two point for which the equation satisfies is (0,-7) and (7,0).

Substitute (0,-7) in the general equation:

y = x² + ax + b

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Substitute (7,0) in the general equation:

y = x² + ax + b

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Where b = -7

0 = 49 + 7a - 7

0 = 42 + 7a

a = -6

The equation of the curve is:

a = -6 and b = -7

y = x² + ax + b

y = x² - 6x - 7

Graph of the equation is attached below.

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2 years ago
What percent of 97 is 11?
saveliy_v [14]
97% of 11 is:

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5 0
3 years ago
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Mademuasel [1]

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Step-by-step explanation:

8 0
3 years ago
A recent broadcast of a television show had a 10 ​share, meaning that among 6000 monitored households with TV sets in​ use, 10​%
Kisachek [45]

Answer:

Null and alternative hypothesis

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It is concluded that the proportion of households tuned into the program is less than 25%. The claim of the advertiser is rigth and got statistical support.

Step-by-step explanation:

We have to perform a hypothesis test of a proportion.

The claim is that less than 25% were tuned into the program, so we will state this null and alternative hypothesis:

H_0: \pi \geq0.25\\\\H_1: \pi

The signifiance level is 0.01.

The sample has a proportion p=0.1 and sample size of n=6000.

The standard deviation of the proportion, needed to calculate the test statistic, is:

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The test statistic is calculated as:

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As this is a one-tailed test, the P-value is P(z<-26.82)=0. The P-value is smaller than the significance level (0.01), so the effect is significant.

Since the effect is significant, the null hypothesis is rejected. It is concluded that the proportion of households tuned into the program is less than 25%. The claim of the advertiser is rigth and got statistical support.

3 0
2 years ago
I=$26.25I=$26.25, P=$500P=$500, t=18 t=18 months
puteri [66]
What is the acutal question
5 0
2 years ago
Read 2 more answers
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