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Bezzdna [24]
3 years ago
6

Please help this makes no sense

Mathematics
1 answer:
kirill115 [55]3 years ago
6 0

Answer:

121 1/4

Step-by-step explanation:

The stock market went up 30 1/2 points, then down 90 3/4 points. The total change is equal tor 121 1/4.

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F(x) = x2 - 8x - 20<br> What is the axis of symmetry, vertex, and y intercept
igor_vitrenko [27]

1. vertex is -4 because:

x^2-8x-20,

a=1, b=-8 , c=-20

use vertex form! -b/2a = -8/2(1) = -8/2 = -4.

2. axis of symmatry is the x which is also -4. The same steps go for the second one.

3. y intercept, I think the answer is -20. Im not sure for this one.

IF YOU LIKE THIS ANSWER PLEASE GIVE ME BRAINLIEST.

5 0
2 years ago
PLEASE ANSWER THIS ONE!!!
Oliga [24]

Answer:

6:5

Step-by-step explanation:

i think this is it as I square rooted it and go that

7 0
2 years ago
18 is 75% of what number?
Nonamiya [84]

Answer:

24

Step-by-step explanation:

18 * 4 /3 = 72/3 = 24

8 0
2 years ago
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Suppose the number of births that occur in a hospital can be assumed to have a Poisson distribution with parameter = the average
arsen [322]

Answer:

0.5372

Step-by-step explanation:

Given that the number of births that occur in a hospital can be assumed to have a Poisson distribution with parameter = the average birth rate of 1.8 births per hour.

Let X be the no of births in the hospital per hour

X is Poisson

with mean = 1.8

the probability of observing at least two births in a given hour at the hospital

= P(X\geq 2)\\= 1-F(1)\\= 1-0.4628\\= 0.5372

the probability of observing at least two births in a given hour at the hospital = 0.5372

4 0
3 years ago
Katie wants to hang a painting in a gallery. The painting and frame must have an area of 45 square feet. The painting is 6 feet
Luda [366]
Each side should increase by 2x (left & right, and up & down) so that to match the condition :
7+2x)(6+2x) = 45
Solving it will give you: 4x² + 26x - 3

5 0
3 years ago
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