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3 years ago

Let f () = + 5 and g(x) = 2x - 3 Find f (x) g(x)

Mathematics

1 answer:

Nina [5.8K]3 years ago

4 0

Answer:

2 $x^{2}$ +7x-15

Step-by-step explanation:

I presume f(x)=x+5 and g(x) =2x-3 and the question is f(x)*g(x)

f(x)*g(x)

(x+5)(2x-3)

distribute

2 $x^{2}$ +10x-3x-15

2 $x^{2}$ +7x-15

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Help with this inequality pleaze

Eddi Din [679]

Answer:

108 cm^2

Step-by-step explanation:

Trapezoid area = (a+b)/2 * h

= (6+12)/2 * 6 = 54 cm^2

Triangle area = b*h/2 = 12* (15-6) / 2 = 54 cm^2

Total area is 54+54 = 108 cm^2

3 0

2 years ago

Write a quadratic function with zeroes 0 and 8.

Jlenok [28]

Answer:

$x^2-8x=0$

Step-by-step explanation:

the quadratic function should be as follows:

$x^2-8x=0$

Now let's confirm that the zeros of the function are 0 and 8

$x^2-8x=0=x(x-8)=0$

Therefore we can see that if x = 0

$0^2*8*0=0\\0=0$

the equation is fulfilled

And we also have $(x-8)$

for this expresion to be equal to zero:

$x-8=0\\x=8$

thus, if x = 8

$8^2-8*8=0\\64-64=0\\0=0$

the equation is also fulfilled

The zeros of the quadratic function $x^2-8x=0$ are 0 and 8.

3 0

3 years ago

Solve for x. x^2−3x−70=0<br><br> x^2 is x to the second power

timurjin [86]

X² <span>− 3x − 70=0
</span>x² + 7x - 10x − 70=0
x(x+7) - 10(x+7) = 0
(x+7)(x-10) = 0

x + 7 = 0 or x - 10 = 0
x = -7 x = 10

Answer: x=-7, x=10

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3 years ago

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Jefferson is plotting the vertices of an isosceles triangle on a coordinate graph. He has plotted the two points shown. Where wo

user100 [1]

Answer:

4,2

Step-by-step explanation:

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3 years ago

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6) Find the measure of ∠G.

topjm [15]

Answer:

m<G = 71

Step-by-step explanation:

Find x first

7x + 1 + 6x - 6 + 55 = 180

Combine like terms:

13x + 50 = 180

- 50 - 50

13x = 130

/13 /13

x = 10

Then apply to problem

7 (10) + 1

70 + 1

= 71

8 0

2 years ago

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