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SOVA2 [1]
2 years ago
9

9x + 2+ 5x = 23 +7 SOLVE pLEASE

Mathematics
2 answers:
yarga [219]2 years ago
8 0

Answer:

2

Step-by-step explanation:

14x + 2 = 30

14x = 28

x = 2

gulaghasi [49]2 years ago
8 0

Answer:

x =2

Step-by-step explanation:

9x + 2+ 5x = 23 +7

Combine like terms

14x +2 = 30

Subtract 2 from each side

14x +2-2 = 30-2

14x = 28

Divide each side by 14

14x/14 = 28/14

x = 2

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From a sample with nequals8​, the mean number of televisions per household is 4 with a standard deviation of 1 television. Using
OlgaM077 [116]

Answer:

75% of the households have between 2 and 6 televisions

Step-by-step explanation:

From the question, we can deduce the following;

sample size n= 8

sample mean μ = 4

standard deviation σ = 1

Using Chebychev’s theorem;

P(2 ≤ X ≤ 6) = P(2-4 ≤ (X - μ) ≤ 6-4)

= P(-2 ≤ (X-μ) ≤ 2) = P(|X-μ| ≤ kσ) ≥ (1 - 1/k^2) ≥ (1- 1/2^) = 1- 0.25 = 0.75 ( same as 75%)

3 0
3 years ago
The box plots represent the birth weights, in pounds, of babies born full term at a hospital during one week.
Verdich [7]

Answer:

less than , less than, minimum

Step-by-step explanation:

got it right

8 0
2 years ago
Given that√7=2.65 and √70=8.37,find the value of
dolphi86 [110]

Answer:

A) 0.265

B) 0.0265

C) 0.837

D) 0.0837

E) 0.00265

F) 0.00837

Step-by-step explanation:

We are given;

√7 = 2.65 and √70 = 8.37

A) √0.07 can be rewritten as;

√(7 × 1/100)

Let's deal with the digits in the bracket.

Square root of 100 is 10. Thus;

√(7 × 1/100) = (1/10)√7 = (1/10) × 2.65 = 0.265

B) √0.0007

Rewrite to get;

√(7 × 1/10000)

Square root of 1/10000 is 1/100

Thus;

√(7 × 1/10000) = (1/100)√7 = (1/100) × 2.65 = 0.0265

C) √0.7

Like above;

√0.7 = √(70 × (1/100))

>> (1/10)√70 = (1/10) × 8.37 = 0.837

D) √0.007

Like above;

Rewrite to get;

√(70 × 1/10000)

Square root of 1/10000 is 1/100

Thus;

√(70 × 1/10000) = (1/100)√70 = (1/100) × 8.37 = 0.0837

E) √0.000007

Rewritten to;

√(7 × (1/1000000))

√(1/1000000) = 1/1000

Thus; √(7 × (1/1000000)) = 1/1000 × √7 = 1/1000 × 2.65 = 0.00265

F)√0.00007

Rewritten to;

√(70 × (1/1000000))

√(1/1000000) = 1/1000

Thus; √(70 × (1/1000000)) = 1/1000 × √70 = 1/1000 × 8.37 = 0.00837

8 0
3 years ago
If 32^2c=8^c+7 whay is the value of c ?
natima [27]
32^(2c)=8^(c)+7
2^10c=2^3c+21 im gonna assume 7 is in the exponent
10c=3c+21
7c=21
c=3
7 0
3 years ago
Read 2 more answers
PLEASE HELP!!! I NEED TO SUBMIT BY 12 AM AND I AM STUCK!
Veronika [31]
Hope this helps! I can’t help with the graphing...

4 0
3 years ago
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