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ziro4ka [17]
3 years ago
12

Consider the linear function f(x)=4x -5. Find f(3), f(0), f(-2).

Mathematics
1 answer:
nika2105 [10]3 years ago
3 0

Answer: f(3)= 7, f(0)= -5, f(-2)= -13

Step-by-step explanation:

Substitute and plug in.

For f(3), we plug in 3 for x in the equation.

So, 4(3)-5, which is just 12-5, which is 7

We do the same for f(0),

4(0)-5, which is 0-5, which is -5

Once again for f(-2),

4(-2)-5, which is -8-5, which is -13

Hope this helps!

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What is the volume of the prism
Diano4ka-milaya [45]

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Step-by-step explanation:

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2 years ago
Use the quadratic f(x)=x²+3x-4 and use any method to solve for the Zeros. Use the same function to solve for x when y is 6. F(x)
Katyanochek1 [597]

Answer:

a) f(x) = (x+4)\cdot (x-3), b) x = -5 or x = 2, c) x \approx 2.531 or x \approx -5.531

Step-by-step explanation:

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f(x) = (x+4)\cdot (x-3)

b) The function has the following form:

x^{2} + 3\cdot x - 4 = 6

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The roots of the polynomial are found by factorization:

(x+5)\cdot (x-2) = 0

x = -5 or x = 2

c) The function has the following form:

x^{2} + 3\cdot x - 4 = 10

x^{2} + 3\cdot x - 14 = 0

The roots of the polynomial are determined by the General Formula for the Second-Order Polynomial:

x_{1} = \frac{-3+\sqrt{3^{2}-4\cdot (1)\cdot (-14)}}{2\cdot (1)}

x_{1} \approx 2.531

x_{2} = \frac{-3-\sqrt{3^{2}-4\cdot (1)\cdot (-14)}}{2\cdot (1)}

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8 0
4 years ago
Use the figure to find the length HJ. Assume △DEF ≅ △GHJ.<br> *I GOT 30*
solniwko [45]
Yes, HJ = 30 ft.

It tells us that triangle DEF = triangle GHJ.

By seeing this we know without looking at the triangles that EF is going to be the same as HJ because when they say a figure is the same as another and list the letters such as 'DEF' and 'GHJ' they will list them in the same order.

So

'DEF' = 'GHJ' we get:

'DE' = 'GH'

'EF' = 'HJ'

And we can do the last and first letters:

'FD' = 'JG'

And since we know 'EF' = 'HJ' and that they already told us 'EF' was 30, we know HJ will be 30.
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3 years ago
Pls follow if u answer right u get 33 points and a follow
svlad2 [7]

Answer:

Step-by-step explanation:

4000 + 12(62 + 2)896 \times 60

4000+12*64*896*60

4000+41287680

41291680

8 0
3 years ago
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