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3 years ago

Write the quadratic equation in general form. What is the value of b2 - 4ac? 1 = 2x2 + 5x?

Mathematics

1 answer:

lidiya [134]3 years ago

8 0

I hope this helps you

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A store pays $119 for a scooter. The store marks up the price by 40%.

Inessa [10]

Answer:

Step-by-step explanation:

if the store marks up the price by 40%

119*(40/100)=47.60

119+47.60=166.60

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3 years ago

-19+3x-11+2x=2 What the answer

Vladimir [108]

Answer:

Step-by-step explanation:

x = 32/5

Decimal Form:

x = 6.4

Mixed Number Form:

x = 6 2\5

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3 years ago

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Math: -x + 6 is greater than or equal to 10

Alla [95]

Answer:

It is actually less than 10.

Step-by-step explanation:

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3 years ago

If u=(1,3) and v=(2,6), find u+v

Ronch [10]

Answer:

(3,9)

Step-by-step explanation:

u=(1,3) and v=(2,6),

u+v = (1+2, 3+6)

=(3,9)

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3 years ago

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I am offering another 100 points

Ivahew [28]

Answer:

$\sf Since \;\sqrt{\boxed{64}}=\boxed{8}\;and\;\sqrt{\boxed{81}}=\boxed{9}\; \textsf{it is known that $\sqrt{75}$ is between}\\\\\sf \boxed{8}\;and\;\boxed{9}\;.$

Step-by-step explanation:

Perfect squares: 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, ...

To find $\sf \sqrt{75}$ , identify the perfect squares immediately before and after 75:

64 and 81

$\begin{aligned}\sf As\;\; 64 < 75 < 81\; & \implies \sf \sqrt{64} < \sqrt{75} < \sqrt{81}\\&\implies \sf \;\;\;\;\;8 < \sqrt{75} < 9 \end{aligned}$

$\sf Since \;\sqrt{\boxed{64}}=\boxed{8}\;and\;\sqrt{\boxed{81}}=\boxed{9}\; \textsf{it is known that $\sqrt{75}$ is between}\\\\\sf \boxed{8}\;and\;\boxed{9}\;.$

See the attachment for the correct placement of $\sf \sqrt{75}$ on the number line.

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1 year ago

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