3 years ago

Which equation has no real solutions

Mathematics

1 answer:

Pavel [41]3 years ago

3 0

Answer:

the third one

Step-by-step explanation:

because if we calcul Δ

we get a negative number

You might be interested in

The monthly dues for a premium membership is $15 more than the cost of a standard membership. The premium membership cost $40 pe

77julia77 [94]

40.00 for premium - 15.00 more than standard
40-15=35.00 for standard

4 0

3 years ago

A newspaper carrier has $1.80 in change. He has two more quarters than dimes but three times as many nickels as quarters. How ma

Mazyrski [523]

$1\ quarter=\$0.25\\1\ dime=\$0.10\\1\ nickel=\$0.05\\\\q\ \ \ \rightarrow\ \ \ the\ number\ of\ the\ quarters\\d\ \ \ \rightarrow\ \ \ the\ number\ of\ the\ dimes\\n\ \ \ \rightarrow\ \ \ the\ number\ of\ the\ nickels\\\\q=2d\ \ \ and\ \ \ n=3q\ \ \ \Rightarrow\ \ \ n=3\cdot 2d=6d\\\\q\cdot0.25+d\cdot0.10+n\cdot 0.03=1.80\\\\2d\cdot0.25+d\cdot0.1+6d\cdot0.05=1.8\\\\$

$0.5d+0.1d+0.3d=1.8\\\\0.9d=1.8\ \ \ \Rightarrow\ \ \ d=2\ \ \ \Rightarrow\ \ \ q=2\cdot2=4\ \ \ and\ \ \ n=6\cdot2=12\\\\Ans.\ 4\ quarters,\ 2\ dimes,\ 12\ nickels$

3 0

3 years ago

The expression 3 + 2(x - 5)2

Vlad [161]

9514 1404 393

Answer:

D. 53 feet

Step-by-step explanation:

The value of the expression when x=0 is ...

3 + 2(-5)² = 3 + 2(25) = 3 +50 = 53

The initial height of the ball is 53 feet.

6 0

3 years ago

–5 + 2n –11 or –6 – 10n > 44

ser-zykov [4K]

Is part of the problem missing? There should be another set of numbers after -5+2n-11 so “n” can be isolated

4 0

3 years ago

Billy has 15$ in his piggy bank, every week he is given an allowance of 5$ should the equation be in slope intercept from or sta

NikAS [45]

Slope intercept

explanation:

total money = 5x+15

x=amount of weeks

7 0

3 years ago