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Vinvika [58]
3 years ago
11

How are quadratic equations different from linear equations?

Mathematics
2 answers:
olya-2409 [2.1K]3 years ago
8 0
In a linear equation:
-- the highest power of the variable that appears is the first power
-- the equation has one solution at most

In a quadratic equation:
-- the highest power of the variable that appears is the second power
-- the equation has two solutions
lesantik [10]3 years ago
3 0
Quadratics always have a squared value and linears don't. Quadratics have 2 answers and linears have 1.
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Help please with math​
Mashutka [201]

Answer:

If they want irregular fractions its

1= 14/4 .       2= 11/2          3= 14/8

4= 21/4 .      5= 27/6 .       6= 125/13

7= 61/9 .      8= 69/9 .       9= 84/8

If they just want the few simplified then

1= 3 1/2

3= 1 3/4

5= 4 1/2

8= 7 2/3

9= 10 1/2

Step-by-step explanation:

4 0
2 years ago
How do you write 300450390 in expanded form
algol [13]

300000000+400000+50000+300+90= 300450390

Hope this helped! :)

7 0
3 years ago
Read 2 more answers
Which relation describes a function?
Katena32 [7]
You know if something is a function or not because of the X will not be repeated. If it is, then it's not a function.
A. 0 and 2 are repeated in X
B. Nothing is repeated for X
C. 2 and 3 are repeated for X
D. 2 and 3 are repeated for X

B is your answer
8 0
2 years ago
Read 2 more answers
You are on the market for a new car. You want to check whether there is a significant difference between the fuel economy of mid
horrorfan [7]

Answer:

Step-by-step explanation:

Hello!

The objective is to test if there is a difference between the fuel economy of mid-size domestic cars and mid-size import cars.

For this there are two samples taken:

X₁: Fuel economy of a domestic car.

Sample 1

n₁= 17 domestic cars

X[bar]₁= 34.904 MPG

S₁= 4.6729 MPG

X₂: Fuel economy of an import car.

Sample 2

n₂= 15 import cars

X[bar]₂= 28.563 MPG

S₂= 8.4988 MPG

To estimate the difference between the average economic fuel of domestic cars and import cars, assuming both variables have a normal distribution and both population variances are unknown but equal, the statistic to use is a t-test for two independent samples with pooled sample variance:

(X[bar]₁-X[bar]₂)±t_{n_1+n_2-2;1-\alpha /2} * (Sa*\sqrt{\frac{1}{n_1} +\frac{1}{n_2} } )

Sa^2= \frac{(n_1-1)S_1^2+(n_2-1)S^2_2}{n_1+n_2-2}

Sa^2= \frac{16*(4.6729)^2+14*(8.4988)^2_2}{17+15-2}= 45.35

Sa= 6.73

t_{n_1+n_2-2;1-\alpha /2} = t_{30; 0.95}= 1.697

(34.904-28.563)±1.697* (6.73*\sqrt{\frac{1}{17} +\frac{1}{15} } )

6.341±1.697*2.38

[2.30;10.38]

With a confidence level of 90%, you'd expect that the difference between the average economic fuel of domestic cars and import cars will be contained in the interval [2.30;10.38].

I hope it helps!

3 0
2 years ago
What is half of 128 explain
pishuonlain [190]
Half of 128 is 64. This is the answer because if you divide the number by two, you are breaking the number into two pieces, or otherwise, two halves. So, 2 goes into 128 a total of 64 times.
4 0
3 years ago
Read 2 more answers
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