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larisa86 [58]
3 years ago
10

The expression 0.8w + 3.6 factored is

Mathematics
2 answers:
shtirl [24]3 years ago
4 0

4 could be considered a common factor

0.8w + 3.6 =

4(0.2w + 0.9)  

or you could call 0.4 the common factor

=0.4(2w+9)

= (2/5)(2w+9), if you want to eliminate decimals.   0.4=4/10=2/5

OlgaM077 [116]3 years ago
3 0
=2/5x2w+45 please give me 5 stars ⭐️
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Solve 3^x − 2 = 3^7<br><br> A. 2<br> B. 5<br> C. 7<br> D. 9
Vikki [24]

Answer:

C) 7

Step-by-step explanation:

3^x−2=2187

Step 1: Add 2 to both sides.

3^x−2+2=2187+2

3^x=2189

Step 2: Solve Exponent.

3^x=2189

log(3x)=log(2189)        <<Take log of both sides

x*(log(3))=log(2189)

x= log(2189)/log(3)

x=7.000832

4 0
3 years ago
A recent study asked U. S. Adults to name 10 historic events that occurred during their lifetime that have had the greatest impa
Nadusha1986 [10]

Using the z-distribution, as we are working with a proportion, it is found that the 99% confidence interval for the proportion of all U. S. Adults who would include the 9/11 attacks on their list of 10 historic events is (0.7458, 0.7942). It means that we are 99% sure that the true proportion for all U.S. adults is between these two bounds.

<h3>What is a confidence interval of proportions?</h3>

A confidence interval of proportions is given by:

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which:

  • \pi is the sample proportion.
  • z is the critical value.
  • n is the sample size.

In this problem, the parameters are:

z = 2.575, n = 2000, \pi = 0.77

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.77 - 2.575\sqrt{\frac{0.77(0.23)}{2000}} = 0.7458

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.77 + 2.575\sqrt{\frac{0.77(0.23)}{2000}} = 0.7942

The 99% confidence interval for the proportion of all U. S. Adults who would include the 9/11 attacks on their list of 10 historic events is (0.7458, 0.7942). It means that we are 99% sure that the true proportion for all U.S. adults is between these two bounds.

More can be learned about the z-distribution at brainly.com/question/25890103

7 0
2 years ago
PLEASE HELP WITH MATHH
Scorpion4ik [409]

Answer:

i think the answer is 76cm im pretty sure it is

Step-by-step explanation:

if so mark this as brainliest answer!!!

5 0
2 years ago
A recipe uses 1 1/4 cups of to make 10 servings. If the same amount of milk is used for each servings, how many servings can be
Troyanec [42]

Answer:

120

Step-by-step explanation:

Im not sure but 1.25 equals 1 1/4   and 16 cups equal a gallon.

16 divided by 1.25 is 12 which means that 12 of those ten servings equal a gallon.  10 times 12 is 120 which becomes ur answer. Once again im not sure but i hope that ive helped.

7 0
3 years ago
Consider the system of equations.
torisob [31]

Answer:

the second equation converted to slope-intercept form is y = -1/3x -1

Step-by-step explanation:

3 0
3 years ago
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