2 years ago

I need help help help

Mathematics

1 answer:

Helen [10]2 years ago

3 0

Answer:

use app Gauthmath its will give you the answer

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Mattie uses the discriminant to determine the number of zeros the quadratic equation 0 = 3x2 – 7x + 4 has. Which bestdescribes t

Katyanochek1 [597]

Discriminant Formula: b² - 4ac, with a = x^2 coefficient, b = x coefficient, and c = constant

So firstly, using our equation plug in the values into the discriminant formula and solve as such:

(-7)² - 4 × 3 × 4

49 - 48

So our discriminant is 1. Since 1 is positive and a perfect square, this means that there are 2 real, rational solutions.

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3 years ago

Distance between points (7,6) (-3,-1)

GaryK [48]

Answer:

Step-by-step explanation:

(7,6) (-3,-1)

(x1,y1) (x2,y2)

$Distance=\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}\\\\=\sqrt{(-3-7)^{2}+(-1-6)^{2}}\\\\=\sqrt{(-10)^{2}+(-7)^{2}}\\\\=\sqrt{100+49}=\sqrt{149}\\\\=12.21$

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3 years ago

A metal bar weighs 9.25 ounces. 65% of the bar is gold. how many ounces of gold is in the bar?

Elza [17]

Not sure I'm right but:

If the bar weighs 9.25 ounces and 65% of the bar is gold, you'd do 65% of 9.25. So the answer would be 65% of 9.25= 6.0125

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3 years ago

Ramonita measured the height of a tree to be 11 feet. One month later, she measured the tree to be 11.75 feet tall. Two months a

DedPeter [7]

Hi.

To formally answer your question:

D. y = 0.75x + 11

We can prove this by substituting x with 1 (the initial measurement)

y = 0.75(1) + 11 = 11.75

~

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3 years ago

Question 1 (2 points)

vitfil [10]

Answer:

Step-by-step explanation:

121/11=11

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3 years ago

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