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2 years ago

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Mathematics

2 answers:

grigory [225]2 years ago

6 0

Answer:

Step-by-step explanation:

2x-5

A, B, C, E All but the 4th one

timurjin [86]2 years ago

3 0

Answer:A, B, C, E

Step-by-step explanation:

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Find the functional values g (-3), g (0), and g (5) for the compound function.

Zinaida [17]

Answer:

$g(-3)=7$

$g(0)=7$

$g(5)=\dfrac15$

Step-by-step explanation:

$g(x) =\begin{cases}7 & \text{if } x \leq 0 \\ \\\dfrac{1}{x} & \text{if } x > 0\end{cases}$

This means:

when x is equal to zero or less than zero, g(x) will always be 7.

when x is more than zero, g(x) is $\frac{1}{x}$

$\implies g(-3)=7$

$\implies g(0)=7$

$\implies g(5)=\dfrac15$

5 0

2 years ago

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Evaluate the expression when b= -2, b2 +6b +9

Tema [17]

Answer:

Step-by-step explanation:

b= -2, b2 +6b +9

=-2(2)+6(-2)+9

=-4-12+9

=4+9-12

=13-12

4 0

3 years ago

Please help me answer <br> 70 is 160% of what?

Lina20 [59]

You are basically asking 160% of X = 70.
1) 70 x 100 = 7000 (to turn the 70 into a %)
2) 7000 /160 = 43.75

You can reverse the equation to double check the answer.
160% x 43.75 = 70

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3 years ago

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An ice cream shop sells cones at the volume of 94.2 cubic meters they want to double the volume of the cones without changing th

marin [14]

The volume of a cone is $V=\pi r^2\frac{h}3$ where r = radius and h = height. If the cone has a volume of 94.2 cm³ (I assume you didn't mean m³ because that would be ridiculously huge) and a height of 10 cm, we can plug these values into the formula to find the radius. Don't do any rounding.

$94.2 = \pi r^2\frac{10}3 \\ 282.6 = \pi r^2 *10 \\ 28.26 = \pi r^2 \\ 8.99543738355 = r^2 \\ 2.99923946752=r$

Now we know that's going to be the radius of our <em>new </em>cone as well since we're keeping the diameter the same. The volume is going to be double 94.2 which is 188.4. Let's solve for the height.

$188.4 = \pi (2.99923946752)^2\frac{h}3 \\ 188.4 = \pi(8.99543738355)\frac{h}3 \\ 188.4 = 28.26\frac{h}3 \\ 565.2 = 28.26h \\\\ \boxed{h = 20, r\approx 3}$

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3 years ago

The cost of 5 gallons of gasoline is $20. Write an equation to show the relationship between the cost, c, and the gallons of gas

EastWind [94]

Answer:

the gas 4$

Step-by-step explanation:

5x=20

divide 5/5 to cancel the 5 then 20/5 and there you have it 4

3 0

2 years ago