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77julia77 [94]
3 years ago
9

Pleasee help from anyone

Mathematics
2 answers:
Brut [27]3 years ago
6 0

Answer:

discriminant = 120

2 real roots ( or 2 x intercepts)

Step-by-step explanation:

f(x) = -7x^2 +8x+2

The discriminant is

b^2-4ac

Where ax^2 +bx+c

so a = -7  b = 8 and c =2

(8)^2 -4(-7) *(2)

64 +56

120

If the discriminant is >0 we have 2 real roots

If the discriminant =0 we have 1 real root

If the discriminant <0 we have 2 complex root ( or no real roots)

Margaret [11]3 years ago
4 0

Answer:

18 and 22.8 will be your answer

Step-by-step explanation:


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Help pleaseeeee!!!!! i stg if no one answers correctly im gonna have another mental breakdown
Afina-wow [57]

Answer:

-6x⁶ + 4x⁴ - 3x³ + 4x² + 12

Step-by-step explanation:

To write an equation in standard form, you want to arrange the terms from increasing to decreasing powers/exponents.

given: 4x² - 6x⁶ + 2x³ + 12 - 5x³+ 4x⁴

First, lets arrange like terms together. Put the terms with the same exponent together.

2x³ - 5x³ + 4x² - 6x⁶ + 12 + 4x⁴

Now combine the terms with the same exponent by subtracting 5x³ from 2x³.

-3x³ + 4x² - 6x⁶ + 12 + 4x⁴

Now let's arrange the terms from increasing to decreasing powers/exponents.

-6x⁶ + 4x⁴ - 3x³ + 4x² + 12

This is your equation in standard form.

Hope this helps!

3 0
3 years ago
Q8 Q21.) Find the amount invested at each rate.
Pavlova-9 [17]
See the attached picture:

6% = 1200
9% = 2400
12% = 3800

5 0
3 years ago
Read 2 more answers
trevor bought 8 gallons of paint to paint his house. He used allbut 1 quart. How many quarts of paint did tevoer use?
seropon [69]
There are 4 quarts in a gallon. So 8 gallons is the same as 32 quarts. If he used all but 1 quart, that means he used 31 quarts. Answer: 31 quarts Hoped that helped
6 0
3 years ago
A triangular prism container is full of water of 428 cubic cm. The water is 10 cm deep, what is the base area of the container?
Hatshy [7]
<h3>The base area of triangular prism container is 42.8 cubic centimeter</h3>

<em><u>Solution:</u></em>

<em><u>The volume of triangular prism is given as:</u></em>

v = base\ area \times height

Given that,

A triangular prism container is full of water of 428 cubic cm

The water is 10 cm deep

Therefore,

v = 428 cubic cm

h = 10 cm

<em><u>Substituting the values we get,</u></em>

428 = base\ area \times 10\\\\base\ area = \frac{428}{10}\\\\base\ area = 42.8\ cm^2

Thus the base area of triangular prism container is 42.8 cubic centimeter

3 0
3 years ago
Which of the following has the least value?
yawa3891 [41]
C hope this helps follow me for a follow
5 0
3 years ago
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