3 years ago

Solutions to the quadratic question are -1/2 and 1/3. Figure out the original equation and write it in standard form.

Mathematics

1 answer:

OleMash [197]3 years ago

7 0

Answer:

$6 {x}^{2} + 5x + 1 = 0$

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Given r(x) = x square +2x -1 and s(x) = x-1 what is the value of r(s(3))

Amanda [17]

Answer:

$r(s(3))=7$

Step-by-step explanation:

we have

$r(x)=x^{2} +2x-1$

$s(x)=x-1$

we know that

The function composition is equal to

(r ∘ s )(x) = r(s(x))

In the function r(x) substitute the variable x by the function s(x)

$r(s(x))=(x-1)^{2} +2(x-1)-1$

For x=3

substitute the value of x=3 in the function composition

$r(s(3))=(3-1)^{2} +2(3-1)-1$

$r(s(3))=(2)^{2} +2(2)-1$

$r(s(3))=4+4-1$

$r(s(3))=7$

3 0

3 years ago

20 points!<br><br> If a translation maps ∠D onto ∠B, which of the following statements is true?

madam [21]

C
The two triangles are similar — that is, the three angles in triangle EDC correspond to those in ABC

5 0

3 years ago

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Find the value of the expression if x=-7

LUCKY_DIMON [66]

Answer: -16

Step-by-step explanation:

49 would be the result of -7 squared. Due to the fact it is negative, it would cancel out to be positive.

For the numerator, 49-1 is equivalent to 48.

48/x+4

-7+4 = -3

48/-3

= -16

5 0

3 years ago

Find a factor of 3x^2- 16x - 12

Greeley [361]

Answer:

x= -2/3 and 6

Step-by-step explanation:

3x²-16x-12

3x²-18x+2x-12

(3x²-18x)+(2x-12)

3x(x-6)+2(x-6)

(3x+2)(x-6)

x= -2/3 and 6

8 0

3 years ago

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Pls help with this math

Salsk061 [2.6K]

Answer:

44.58

Step-by-step explanation:

$v=\frac{4}{3}\pi r^{3}\\ given r= 2.2\\\pi =3.14\\hence:v=\frac{4}{3} (3.14)(2.2)^3=44.58$

5 0

2 years ago