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Anni [7]
3 years ago
15

Which expression has the same value as 9- (-7)9−(−7)?

Mathematics
1 answer:
gulaghasi [49]3 years ago
6 0

Answer:

I d need help on same question

Step-by-step explanation:

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Three friends decided to exercise together four times a week to lose fatand increase muscle mass. While all three were healthier
gregori [183]

Answer:

6 pounds lost

Step-by-step explanation:

5+4 is 9 9-3 is 6 which means that in total, 6 pounds was lost

5 0
3 years ago
A TV report conducted a survey of 947 people in New York City and found that 35% of the population believe that the Yankees will
garik1379 [7]

Answer:

35\% represents the sample proportion of the population

Step-by-step explanation:

From the question we are told that

   The sample size is  n  = 947

   The proportion of the population that believes that the Yankees will miss the playoffs this year is    k = 35\% = 0.35

From the question we are told the confidence level is  97%

   The lower limit of the confidence level is a = 28%

    The upper limit of the  b = 42%

Generally the sample proportion of this population is mathematically represented as

         \^ p = \frac{a+ b}{2}

=>      \^ p = \frac{28 + 42 }{2}

=>      \^ p = 35\%

Hence  35\% represents the sample proportion

8 0
3 years ago
For what value of the constant c is the function fcontinuous on (−[infinity], [infinity])?
Arlecino [84]

Answer:

For c=\frac{1}{7} the function f(x) is continuous on (-\infty,\infty).

Step-by-step explanation:

We have the following function

f(x) = \left\{        \begin{array}{ll}            cx^2+5x & \quad x

For the function f(x) to be continuous on (-\infty,\infty) it is sufficient to have continuity at x = 6, we need to ensure that as x approaches 6, the left and right limits match, this means that

\lim_{x \to 6^{-} } f(x)=\lim_{x \to 6^{+} } f(x)=f(x),

which holds if and only if

c\left(6\right)^2+5\left(6\right)=\left(6\right)^2-c\left(6\right)\\36c+30=36-6c\\42c=6

namely if c=\frac{1}{7}.

6 0
3 years ago
A hubcap has a radius of 16 centimeters. What is the area of the hubcap? Round your answer to the nearest hundredth. Use 3.14 fo
Shtirlitz [24]
The formula for the area of a circle is pi*r^2. 3.14*16^2 = 803.84 centimeters squared
7 0
3 years ago
Jan's motorboat travels at a speed of 14 mph in still water. Booth river flows at a speed of 4 mph. How long will it take Jen to
Leya [2.2K]
Upstream: 14 - 4 = 10. Miles per hour.
16 miles = 1.6 hours.

Downstream: 14 + 4 = 18.
16 miles = 16/18 = 8/9 or 0.888 of an hour.

8 0
3 years ago
Read 2 more answers
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