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vesna_86 [32]
3 years ago
14

Regroup to express the number in a different way.

Mathematics
1 answer:
MrRissso [65]3 years ago
3 0

Answer:

add 1 hundred because you put a 1 instead of a 2

but the answer is 5 tens

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(¬‿¬) Find the number of real number solutions for the equation. x^2+9x+20=0
mart [117]

To find the nature of solutions of a quadratic equation we can find the discriminant.

The standard form of a quadratic equation is ax² + bx + c = 0.

Formula to find the discriminant = b² - 4ac.

So, first step is to compare the given equation with the above equation to get the value of a, b, and c.

After comparing the two equations we will get a =1, b = 9 and c = 20.

Next step is to plug in these value in the formula of discriminant. So,

Discriminant = 9² - 4(1)(20)

= 81 - 80

= 1

Since 1 is a positive perfect square number.

So, we will get two real solutions for this equation.

Hence, the correct choice is C.

Hope this helps you.

8 0
3 years ago
HELPPP PLSS<br><br><br> DUE TN <br><br><br> WILL GIVE BRAINLIST
Nezavi [6.7K]

Answer:

49/144

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Mr. Anderson drove 168 miles in 3 hours. He then drove the next 2 hours at a rate
Luda [366]

Answer:

If you were asking how many miles <u>in total</u>: 290 miles.

If you were asking how many miles in the <u>2 hours</u>: 122 miles

Step-by-step explanation:

In the first 168 miles,

<u>Since \\v_1=168miles/3h=56 miles/h\\\\Thus  \\v_2=v_1+5=56+5=61miles/h\\\\X_1=168miles\\X_2=v_2*2h=61*2=122miles\\X_1+X_2=168+122=290miles\\\\</u>

8 0
3 years ago
What is the equation of the graph shown?
WITCHER [35]

Answer:

Please take a photograph of the graph.

3 0
3 years ago
Select the correct answer.
Scilla [17]

Answer:

Approximately (2, 1)

See image

Step-by-step explanation:

Rearrange each equation so it is ready to be graphed on an x-y-axis (see image) look for the point where the two lines cross. This is the solution for the system of equations.

3 0
2 years ago
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