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lisov135 [29]
3 years ago
6

If f(x) = 5x^2– 3 and f(x + a) = 5x^2+ 30x + 42, what is the value of a ?

Mathematics
1 answer:
Andrei [34K]3 years ago
8 0

Answer:

The zeros are x=0,3,-2

There is a multiplicity of 1 for all of them.

Step-by-step explanation:

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-1/9+-5/9=<br> Simplest form<br> 24 points
Nataly [62]

-1/9+-5/9=

When you are adding a negative number, the operation turns into subtraction:

-1/9-5/9=\frac{-1-5}{9}=-\frac{6}{9}=-\frac{2}{3}

Really, it's just subtraction. The simplest form is -2/3, which is equal to -0.66667.

I hope this helps :)

5 0
3 years ago
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Can someone please help me with this
adell [148]
Area of a parallelogram is base x height
48x14=672
5 0
2 years ago
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X≤−2 and x&lt;−5 on a number line
sweet [91]

x is less than or equal to -2.

x is greater than -5.

When x is less than something, the arrow must go left. <———

When x is equal to a number, the dot must be filled in.    •

When x is greater than a number, the arrow should go right, toward the greater values. ——>

When x isn’t equal to the number, the circle is not colored in. ⭕️

Shown in picture:

4 0
3 years ago
Katrina buys a 38​-ft roll of fencing to make a rectangular play area for her dogs. Use ​2(​l+w)=38 to write a function for the​
jenyasd209 [6]

Answer:

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Step-by-step explanation:

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5 0
2 years ago
Identify all of the real roots of x^4 − x^3 − 9x^2 + 11x + 6 = 0.
Norma-Jean [14]

Answer:

4 roots: 2 , -3, 1+√2, 1 - √2

Step-by-step explanation:

x⁴ − x³ − 9x² + 11x + 6 = 0    leading: 1 (x⁴)    Trailing: 6 (1,2,3,6)

possible roots: trailing/leading (±1 , ±2, ±3, ±6)

Test: x = 2     (2)⁴ - (2)³ - 9*(2)² + 11*(2) + 6 = 0

        x = -3    (-3)⁴ - (-3)³ - 9*(-3)² + 11*(-3) + 6 = 0

By rational roots test: possible roots (x-2)(x+3) are factors

Long division:  (x⁴ − x³ − 9x² + 11x + 6) / (x-2)(x+3) = x²-2x-1

roots of x²-2x-1: x= (-b±√b²-4ac) / 2a

x = (2 ± √4+4) / 2 = (2 ± 2√2) / 2 = 1 ± √2

3 0
3 years ago
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