4 years ago

Can someone please help with this?

Mathematics

1 answer:

jonny [76]4 years ago

8 0

I dont know in only in middle school

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Giving brainliest to CORRECT answer.

melomori [17]

Answer:

B) (-3,4)

Step-by-step explanation:

I graphed the function on the graph below to show you that vertex of the function.

If this answer is correct, please make me Brainliest!

5 0

3 years ago

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Can someone help and explain ? thank you !

AfilCa [17]

$\sf Hello!$

$\sf y = 2x^{2} + 4x - 3$

$\sf Discriminant$ :

= $\sf b^{2} - 4ac$

= $\sf (4)^{2} - 4.(2).(-3)$

= $\sf 16 - (-24)$

= $\sf 16 + 24$ = $\sf 40$

$\sf Since,$
$\sf D \:is\:Greater\: than\: 0.$

$\sf Roots\: are\: Real\: and\: Distinct$

$\sf Hence,$

$\sf y = 2x^{2} + 4x - 3\: have\: A.\: Two\: real\: roots$

~ $\sf iCarl$

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4 years ago

Determine the best answer

kicyunya [14]

Let’s assume the point in the centre is the origin of the circle.

This means the radius is 21/2 = 10.5cm.

180 - 168 = 12 degrees as the angle between BC.

Circumference of a sector is:

Angle/360 • pi • diameter

=12/360 • pi • 21 cm

= 2.19 cm = 2.20 cm

Which is option B

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3 years ago

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What is the unit rate of 420$ for 12 tickets

AlladinOne [14]

$35 per ticket

the unit rate means the cost of 1 ticket

divide $420 by 12 for unit rate

$\frac{420}{12}$ = $35 per ticket