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3 years ago

7

Use the discriminant to determine how many real number solutions exist for the quadratic equation −4x2 + 3x –28 = 0.

1 answer:

elixir [45]3 years ago

4 0

Answer:

c

Step-by-step explanation:

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Follow my Instagram <br> 1.cshamoun

wolverine [178]

Answer:

SUre

Step-by-step explanation:

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3 years ago

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Shaylee has 77 pennies. She will trade in the pennies to get nickels.

Ghella [55]

0.77 / 0.05 = 15.4 ...so we know it is 15 nickels
15 * 0.05 = 0.75.....0.77 - 0.75 = 0.02....with 2 pennies left over

ur answer is : 15 nickels and 2 pennies left over

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3 years ago

Read 2 more answers

Help......................................

Sergeu [11.5K]

Yep that’s correct

...

3 0

3 years ago

Read 2 more answers

xz_007 [3.2K]

Answer:

1) $n = 84$

2) $n = 78$

3) $n = 24$

4) $n = 16$

5) $n = 35$

Step-by-step explanation:

To solve each proportion, we apply cross multiplication.

Question 1:

$\frac{5}{12} = \frac{35}{n}$

$5n = 35*12$

Simplifying both sides by 5

$n = 7*12 = 84$

Question 2:

$\frac{n}{52} = \frac{180}{120}$

$120n = 52*180$

Simplifying both sides by 20

$6n = 52*9$

Simplifying by 3

$2n = 52*3$

Simplifying by 2

$n = 26*3 = 78$

Question 3:

$\frac{18}{n} = \frac{21}{28}$

$21n = 18*28$

Simplifying both sides by 7

$3n = 18*4$

Simplifying both sides by 3

$n = 6*4 = 24$

Question 4:

$\frac{n}{4} = \frac{24}{6}$

$\frac{n}{4} = 4$

$n = 16$

Question 5:

$\frac{10}{16} = \frac{n}{56}$

$16n = 56*10$

Simplifying by 2, both sides

$8n = 56*5$

Simplifying by 8, both sides

$n = 7*5 = 35$

4 0

3 years ago

Cual es la relacion entre <a y <b?

RideAnS [48]

Answer:

Angulos suplementarios

7 0

3 years ago