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3 years ago

Write an expression for h multiplied by 9 then evaluate that expression when h=3 full working out

Mathematics

2 answers:

Dimas [21]3 years ago

8 0

Answer:

9(3) = 27

Step-by-step explanation:

expression for h multiplied by 9

evaluate that expression when h=3

9(3) = 27

garri49 [273]3 years ago

3 0

Answer:

h=3

substitute 3 into h

9(3)=27

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3 years ago

Factor 5v^2 - 23v - 10

AfilCa [17]

Answer:

$(5v + 2)(v - 5)$

Step-by-step explanation:

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The expression is written in the form of $ax^2 + bx + c$

Let's factor by grouping:

$ac = -50$

The sum of the factors of -50 should add up to -23.

-25 and 2 work for this.

Expand and factor:

$5v^2 - 23v - 10$
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1 year ago

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IrinaK [193]

Answer:

Step-by-step explanation:

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3 years ago

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OLga [1]

Answer:

Angle at x is 75°

Step-by-step explanation:

Data :

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2 years ago

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The function f(x)=g(x), where f(x)=2x-5 and g(x)=x^2-6. The table below shows the process of solving using successive approximat

valkas [14]

Answer:

The positive solution is 2.4.

Step-by-step explanation:

The given functions are

$f(x)=2x-5$

$g(x)=x^2-6$

It is given that

$f(x)=g(x)$

$2x-5=x^2-6$

$0=x^2-6-2x+5$

$0=x^2-2x-1$

The quadratic formula:

$x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

$x=\frac{2\pm \sqrt{(2)^2-4(1)(-1)}}{2(1)}$

$x=\frac{2\pm \sqrt{8}}{2}$

$x=\frac{2\pm 2\sqrt{2}}{2}$

$x=\frac{2(1\pm \sqrt{2})}{2}$

$x=1\pm \sqrt{2}$

$x=2.4,-0.4$

Therefore the positive solution is 2.4.

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3 years ago

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