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Aleks [24]
2 years ago
13

Select the correct answer.

Mathematics
1 answer:
mestny [16]2 years ago
3 0

The equation that can be solved using x = \frac{-8 \pm \sqrt{8^2 - 4(3)(-2)}}{2(3)} is C. 3x^2 + 8x − 10 = -8

<h3>How to determine the equation?</h3>

The attached image represents the missing information in the question

From the image, we have:

x = \frac{-8 \pm \sqrt{8^2 - 4(3)(-2)}}{2(3)}

The quadratic formula is:

x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}}

The above means that:

a = 3

b = 8

c = -2

From the list of options, we have:

C. 3x^2 + 8x − 10 = -8

Add 8 to both sides

3x^2 + 8x − 2 = 0

In the above equation, we have:

a = 3

b = 8

c = -2

Hence, the equation that can be solved using x = \frac{-8 \pm \sqrt{8^2 - 4(3)(-2)}}{2(3)} is C. 3x^2 + 8x − 10 = -8

Read more about quadratic equations at:

brainly.com/question/16684726

#SPJ1

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Inessa05 [86]

Answer:

7

Step-by-step explanation:

7 0
3 years ago
Find the derivative of f(x) = negative 10 divided by x at x = -12.
KiRa [710]
f(x)=\dfrac{10}{x};\ D:x\neq0\\\\f'(x)=-\dfrac{10}{x^2}\\\\x=-12\to f'(-12)=\dfrac{-10}{(-12)^2}=\dfrac{-10}{144}=-\dfrac{5}{72}
3 0
3 years ago
Flori’s Flower shop contains fewer than 150 flowers. All the flowers are purple, yellow, red or white. The ratio of purple flowe
alexgriva [62]

Flori's Flower Shop have 48 <em>white</em> flowers, 40 <em>red</em> flowers, 30 <em>yellow</em> flowers and 15 <em>purple</em> flowers, whose sum equals 133 flowers, which is fewer than 150 flowers.

<h3>How to determine the quantity of flowers in a flower shop</h3>

Flori's Flower shop owns a quantity less than 150 flowers, in which there are four kinds of flowers according to color: (purple - <em>p</em>, yellow - <em>y</em>, red - <em>r</em>, white - <em>w</em>), each variable represents <em>positive</em> integers. Now we proceed to construct the system of equation that describes the situation:

z < 150     (1)

p + y + r + w = z    (2)

p = y/2     (3)

y = 3 · r/4     (4)

r = 5 · w/6     (5)

By (1) and (3) in (2):

y/2 + y + r + w < 150

By (4):

3 · y/2 + r + w < 150

9 · r/8 + r + w < 150

17 · r/8 + w < 150

By (5):

85 · w/48 + w < 150

133 · w/48 < 150

133 · w < 7200

w < 54.135

Now we assume that <em>w =</em> 48, then we have the following solution for the flower shop: <em>r =</em> 40, <em>y =</em> 30, <em>p =</em> 15.

Flori's Flower Shop have 48 <em>white</em> flowers, 40 <em>red</em> flowers, 30 <em>yellow</em> flowers and 15 <em>purple</em> flowers, whose sum equals 133 flowers, which is fewer than 150 flowers. \blacksquare

To learn more on inequalities, we kindly invite to check this verified question: brainly.com/question/20383699

3 0
2 years ago
I need help finishing the proof
erastova [34]

Answer:

See proof

Step-by-step explanation:

      Statements                  Reasons

1. \overline{AEC} bisects \angle DAB,\ \angle 1\cong \angle 2   Given

2. \angle 3\cong \angle 4                Definition of angle bisector

3. \overline{AE}\cong \overline{AE}                Reflexive property of equality

4. \triangle ABE \cong \triangle ADE               AAS postulate

5. \overline {AB}\cong \overline{AD}             Congruent triangles have congruent corresponding sides

6. \overline{AC}\cong \overline{AC}                Reflexive property of equality

7. \triangle BAC \cong \triangle DAC                   SAS postulate

8. \overline {BC}\cong \overline{CD}             Congruent triangles have congruent corresponding sides

6 0
3 years ago
This for accounting. Please help
Feliz [49]
The image isn’t loading , try reuploading :D


p.s have a good day/night
8 0
3 years ago
Read 2 more answers
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