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2 years ago

helppp plssssss (10 points)

Mathematics

1 answer:

Margaret [11]2 years ago

6 0

4 + -6 = -2

Hope that helps? Sorry if it doesn’t...

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3. pH is given by the formula pH = -log [A]

ale4655 [162]

Well, what I’d do is just see who has the most which is Bill and then for the other question I’d just subtract 7.8 - 7.2 which is equal 6 so the pH is greater by .6

5 0

3 years ago

The following observations on degree of polymerization for paper specimens are used to estimate the true average degree polymeri

marshall27 [118]

Answer:

The answer is in the explanation

Step-by-step explanation:

Mean value = $\bar x$ = 438

(a) The data appeared to be centered towards 438.

There are little or no skew.

There is no outliers.

(b) yes

95% confidence interval = $+- t_{df} * s\sqrt{n}$

$438 +- 2.12 * 14.8955 /\sqrt{17}$ =

= (430.3415, 445.6585)

(d) Test statistic

t = $(438 - 450)/{14.8955\sqrt17} }$

t = -3.3216

p -value is correctly given in option b.

No, 450 is not a plausible valaue.

5 0

3 years ago

How are the side-splitter theorem and the angle bisector theorem similar?

mart [117]

The side-splitter theorem is basically bisecting a side of a shape.

5 0

2 years ago

Solve S=2πrh+πr2 for h

kirill115 [55]

$S= \pi rh+ \pi r^2\ \ \ \ | subtract\ \pi r^2\\\\
s-\pi r^2= \pi rh\ \ \ \ | divide\ by\ \pi r \\\\
\frac{s-\pi r^2}{ \pi r}=h$

3 0

3 years ago

Juan owes his cousin, Benito, $10.00. Benito is tired of waiting for Juan to pay him back. To try and get Juan to pay up more qu

AleksAgata [21]

Answer:

Equation: 10+x= 15 +0.5x

Time: 10 days

Amount: 20$

Step-by-step explanation:

Equation for Benito:

10 + x*1

Equation for Tavon:

15 + x*0.5

Since the sums equalize at some time, we get:

10+x= 15 +0.5x
x - 05x = 15- 10
0.5x = 5
x= 5/0.5
x= 10 days

After 10 days, Juan will owe both Benito and Tavon $20

7 0

2 years ago

￼helppp plssssss (10 points)

helppp plssssss (10 points)