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laiz [17]
3 years ago
15

Malaya wrote a survey question in the newspaper about changing the school colors. Ninety percent of those who responded in an e-

mail said they should be changed. She concludes that 90% of the student body wants the colors changed *
Mathematics
1 answer:
a_sh-v [17]3 years ago
6 0
Not all of the student body would have responded therefore her conclusion was incorrect, could be changed to be right by saying 90% of people who responded to a survey said the school colours should be changed.
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Jim sells hot dogs for $2.95 each and steak sandwiches for $9.95 each out of his food cart. During a busy outdoor festival, he s
Elenna [48]

Answer:

634 steak sandwiches.

Step-by-step explanation:

Let's say X is the number of hot dogs and Y is the number of steak sandwiches.

2.95x + 9,95y = 7343.75

x + y = 985

y = 985 - x

2.95x + 9.95(985-x) = 7343.75

2.95x + 9800.75 - 9.95x = 7343.75

7x = 2457

x = 351

y = 985 - 351

y = 634

7 0
3 years ago
I need this problem solved
attashe74 [19]

Answer:

<em>x = 70</em>

Step-by-step explanation:

4 0
2 years ago
Need help <br><br><br><br><br><br> help me plz
Natasha2012 [34]

Answer:

-3

Step-by-step explanation:

Rise/Run is the basic formula for slope. The rise is 3 and the run is -1, making the answer -3.

6 0
3 years ago
find the numbers at which f is discontinuous and determine whether f is continuous from the right, or from the left, or neither.
sladkih [1.3K]

Where the function f is discontinuous  and continuous  is  mathematically given as

  • f(x) is not continuous at x = 0.
  • f(x) is left continuous at x = 1
  • f(x) is right continuous for all x =5

<h3>What are the numbers at which f is discontinuous or continuous?</h3>

Generally, the equation for is  mathematically given as

Since x+1, 1/x, and (x-5), the function does not "break" since these three terms are continuous. at

  • x = 1
  • x = 5.

According to the dictionary definition of continuity, the function f(x) is continuous at x = a if:

lim (x->a-) f(x) = lim (x->a+) f(x) = f(a).

for x = 0

lim (x->0-) f(x)

= lim (x->0-) (x+1),

since f(x) = x+1 for x \leq 1

f(x<=1) = 1 + 0

f(x<=1)= 1

lim (x->0+) f(x)= lim (x-->0+) ( √(x-5) ), since f(x)

lim (x->0+) f(x)= √(x-5 for x>=5

lim (x->0+) f(x)= 5

In conclusion,

  • f(x) is not continuous at x = 0.
  • f(x) is left continuous at x = 1
  • f(x) is right continuous for all x =5

Read more about discontinuous

brainly.com/question/12644479

#SPJ4

Complete Question

Find the numbers at which f is discontinuous. Then determine whether f is continuous from the right, from the left, or neither at each point of discontinuity.

f(x)={ x+1 if x< 1

1/x if 1<x<5

√(x-5) if x> 5

4 0
2 years ago
If a coin is tossed and a card is drawn from a deck. What the probability of getting a dead and a 6?
Lemur [1.5K]

Answer: \frac{1}{26}

<u>Step-by-step explanation:</u>

heads: 1 out of 2 = \frac{1}{2}

6: 4 out of 52 = \frac{4}{52} = \frac{1}{13}

heads  and   6

 \frac{1}{2}    x    \frac{1}{13} = \frac{1(1)}{2(13)} = \frac{1}{26}

7 0
3 years ago
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