3 years ago

If g(x)= x+1 and h(x) = 4 – x, what is the value of (9.0) (-3)?

Mathematics

1 answer:

konstantin123 [22]3 years ago

6 0

Answer:it’s b

Step-by-step explanation:

On edn

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How many two-digit, positive integers can be formed from the digits 1, 3, 5, and 9, if no digit is repeated?

irga5000 [103]

Answer:

12

Step-by-step explanation:

Using Permutation Formula :

⁴P₂
4! / 2!
4 x 3 x 2! / 2!
4 x 3
12

8 0

2 years ago

. If the radius is doubled and the height is halved what is the ratio of the new volume to the original volume

photoshop1234 [79]

Answer: Ratio of new volume to original volume is 2:1.

Step-by-step explanation:

Let the radius of cylinder be 'r'

Let the height of cylinder be 'h'

Original volume of cylinder will be

$V=\pi r^2h$

If radius get doubled,

New radius be '2r'

If height get halved,

New height be will be

$\frac{h}{2}$

so, Volume of cylinder becomes

$Volume=\pi (2r)^2\times \frac{h}{2}=\pi \times 4r^2\times \frac{h}{2}\\\\Volume=2\pi r^2h$

Ratio of new volume to the original volume is given by

$2\pi r^2h:\pi r^2h\\\\2:1$

Hence, Ratio of new volume to original volume is 2:1.

8 0

3 years ago

Determine the value of y, if x is 7. y = x2 - 1

ddd [48]

Answer:

Step-by-step explanation:

If x is 7, then 7 * 2 = 13, and 14 - 1 = 13.

Hope that this helps!

4 0

3 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=e%20%3D%20mc%20%7B2%7D" id="TexFormula1" title="e = mc {2}" alt="e = mc {2}" align="absmiddle"

serg [7]

Answer:

The equation — E = mc2 — means "energy equals mass times the speed of light squared." It shows that energy (E) and mass (m) are interchangeable.

Hope this helped

6 0

3 years ago

Find the area use 3.14 for pi

Aleonysh [2.5K]

Answer:

15.14 cm^2

Step-by-step explanation:

Area of rectangle = 4cm x 3 cm = 12cm^2

Radius of the circle = 2 cm

Area of 1/4 of a circle = (pi x r^2) / 4

= (3.14 x 4) / 4 = 3.14 cm^2

3.14 cm^2 + 12cm^2 = 15.14 cm^2

5 0

3 years ago