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Alla [95]
3 years ago
12

HELP ASAP PLEASE

Mathematics
2 answers:
ladessa [460]3 years ago
7 0
Answer:372.22


step by step explanation:
telo118 [61]3 years ago
5 0
I’m pretty sure it would be 372.22
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2.5(t+3)=16.25<br> What is the value of t?
Shalnov [3]
T, would be equal to 3.5 because 3.5+3=6.5 and 6.5×2.5=16.25. Hope that helped :D
7 0
3 years ago
Write the sum of the numbers as the product of their gcf and another sum 48 plus 14
Sav [38]
Gfc is greatest common factor so the greates number that goes into both of them
 
<u>48</u>             <u>14</u><u />         
1×48          1×14
2×24          2×7
4×12
6×8

2 is the greatest common factor

so im guessing (2×24) + (2×7)

7 0
3 years ago
Solve the system y = -x + 7 and y = 0.5(x - 3)2
amid [387]

Answer:

(5, 2 ) and (- 1, 8 )

Step-by-step explanation:

Given the equations

y = - x + 7 → (1)

y = 0.5(x - 3)²

   = 0.5(x² - 6x + 9)

y    = 0.5x² - 3x + 4.5 → (2)

Substitute y = - x + 7 into (2)

- x + 7 = 0.5x² - 3x + 4.5 ( subtract - x + 7 from both sides )

0 = 0.5x² - 2x - 2.5 ( multiply through by 2 ) , then

x² - 4x - 5 = 0 ← in standard form

(x - 5)(x + 1) = 0 ← in factored form

Equate each factor to zero and solve for x

x - 5 = 0 ⇒ x = 5

x + 1 = 0 ⇒ x = - 1

Substitute these values into (1) for corresponding values of y

x = 5 : y = - 5 + 7 = 2 ⇒ (5, 2 )

x = - 1 : y = -(- 1) + 7 = 1 + 7 = 8 ⇒ (- 1, 8 )

6 0
3 years ago
A random sample of 1,175 people in a certain country were asked whether they thought climate change was a problem. The sample pr
il63 [147K]

Answer: c. We are 95 percent confident that the proportion of people in the sample who think climate change is a problem is between 0.146 and 0.214.

Step-by-step explanation:

Interpretation for 95% confidence interval :

A person can be 95% confident that the true population parameter lies in it.

By considering the given information , we have

population parameter→ p (Proportion of people who think climate change )

95 percent confidence interval = (0.146, 0.214)

Interpretation : We can be 95% confident that the true population proportion of people who think climate change lies between 0.146 and 0.214.

So , the correct answer is

c. We are 95 percent confident that the proportion of people in the sample who think climate change is a problem is between 0.146 and 0.214.

8 0
3 years ago
The heights of women aged 20 to 29 are approximately normal with mean 64 inches and standard deviation 2.7 inches. men the same
Serjik [45]
The number of standard deviations from the mean for a man 72 inches tall is
  Z = (72 -69.3)/2.8 ≈ 0.964
3 0
3 years ago
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