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3 years ago

2x+5=23 solve for each variable

Mathematics

1 answer:

GalinKa [24]3 years ago

3 0

Answer:

x = 9

Step-by-step explanation:

23 - 5 = 18

18 ÷ 2 = 9......

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If h(x)=(fog)(x) and h(x)=³√x+3, find g(x) if f(x) =³√x+2

ipn [44]

Answer:

$g(x)=x+1$

The problem:

Find $g(x)$ if $h(x)=(f \circ g)(x)$ ,

$h(x)=\sqrt[3]{x+3}$ , and

$f(x)=\sqrt[3]{x+2}$ .

Step-by-step explanation:

$h(x)=(f \circ g)(x)$

$h(x)=f(g(x))$

Replace $x$ in $f(x)=\sqrt[3]{x+2}$ with $g(x)$ since we are asked to find $f(g(x))$ :

$\sqrt[3]{x+3}=\sqrt[3]{g(x)+2}$

$\sqrt[3]{x+1+2}=\sqrt[3]{g(x)+2}$

This implies that $x+1=g(x)$

Let's check:

$(f \circ g)(x)$

$f(g(x))$

$f(x+1)$

$\sqrt[3]{(x+1)+2}$

$\sqrt[3]{x+1+2}$

$\sqrt[3]{x+3}$ which is the required result for $h(x)$ .

6 0

3 years ago

Can anybody help me with this

kondaur [170]

Answer:

c ≈ 9.1 m

Step-by-step explanation:

Using Pythagoras' identity in the right triangle.

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides , that is

c² = 4.1² + 8.1² = 16.81 + 65.61 = 82.42 ( take square root of both sides )

c = $\sqrt{82.42 }$ ≈ 9.1 m ( to the nearest tenth )

5 0

2 years ago

The current price of a pair if snowshoes is 129.99$. The price went down 13% and there is a tax of 5% what is the answer?

Doss [256]

129.99*0.13
129.99-16.90
113.09*0.05
5.65+113.09
118.74

7 0

3 years ago

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Solve the equation <br>8(4- x) = 7x + 2<br>x=

Jet001 [13]

Answer: x=2

Step-by-step explanation:

Expand.

32−8x=7x+2

Add 8x to both sides.

32=7x+2+8x

Simplify 7x+2+8x7x+2+8x to 15x+215x+2.

32=15x+2

Subtract 22 from both sides.

32−2=15x

Simplify 32−2 to 30.

30=15x

Divide both sides by 15.

30/15=x

Simplify 30/15 to 2

2=x

Switch sides.

x=2

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3 years ago

What is 3,600 seconds per hour times 24 hours per day times 365.25 days per year?

iren2701 [21]

Answer:31557600

Step-by-step explanation:

3600 x 24 x 365.25

Which equal 31557600

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3 years ago

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2x+5=23 solve for each variable​

2x+5=23 solve for each variable