3 years ago

Ciaran scores 76% work out 76% of 75 marks Help pls

1 answer:

3 0

To get 76% of 75 you turn the fraction to a decimal, then multiply it to the number. 76% as a decimal us 0.76 and 0.76 * 75 = 57

So, Ciaran got 57 out of 75 questions right.

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Given F(x) = 2x - 1; G(x) = 3x + 2; and H(x) = x 2, find the function F(x) + G(x) + H(x).

valentina_108 [34]

Answer:

if H(x) is x²

Step-by-step explanation:

$3x + 2 + 2x - 1 + {x}^{2} = \\ 3x + 2x = 5x \\ {x}^{2} + 5x - 1$

im not sure exactly hehe

7 0

3 years ago

What is the slope of the line represented by the equation y-6=5(x-2)

Nookie1986 [14]

<span>y - 6 = 5(x - 2)

As you know y - y1 = m(x - x1) where m = slope

in this case </span>y- 6 = 5(x - 2), m = 5

Answer: Slope m = 5

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3 years ago

A teacher writes the function f(x)=3x^2-18x+27 on the board. How many times does the graph of the teacher's function intersect t

Oduvanchick [21]

Answer:

Once. at (3,0)

Step-by-step explanation:

It is handy to have a graphing calculator for this kind of question.

Otherwise work it out.

All the terms are multiples of 3, so simplify. $3(x^{2} -6x + 9)$

then factor (x -3)(x-3)

Set each equal to 0 and solve for x.

x - 3 = 0 x = 3

OH ! they are identical! So there is only One value for x that will produce an output of 0.

So it intersects (touches) only once.

7 0

3 years ago

How do I find the volume of the cylinder round to the nearest hundredths

Zigmanuir [339]

Answer:

Volume = 502.65 cm³

Step-by-step explanation:

V= 3.14×4²×10 = 502.65 cm³

8 0

2 years ago

30,45,x,100; the mean is 60

Andrei [34K]

if there are 4 numbers that average to 60, when mutiplied they must come up to: 60*4= 240

100+30+45= 175

240-175= 65

PROOF:

100+30+45+65= 240

240÷ 4

= 60

6 0

3 years ago

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