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vova2212 [387]
3 years ago
8

Helppp plssssss math

Mathematics
2 answers:
AleksAgata [21]3 years ago
7 0
Snchsijahcjjswjajxjvjjss
oksano4ka [1.4K]3 years ago
3 0

Answer:

f(7)=13

g(x)=86

Step-by-step explanation:

f(x)=2x-1\\f(7)=2*7-1\\=14-1\\=13\\\\g(x)=x^2+5\\g(-9)=(-9)^2+5\\=81+5\\=86

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HELP QUICK GIVING 50 POINTS!!!
avanturin [10]

Answer:

64/3 cc or 64/3 cm³

Step-by-step explanation:

The formula for the volume of a triangular pyramid is

V = (1/3)(area of base)(height)

Here we have a square prism (actually, a cube), whose square base is 4 cm by 4 cm (4 cm is the cube root of 64 cc).  The height of this cube is also 4 cm.

The volume of a triangular pyramid of base area (4 cm)² and height 4 cm is

V = (1/3)(base area)(height)

   = (1/3)(16 cm²)(4 cm) = 64/3 cc

8 0
3 years ago
What is the radian measure of an angle equal to 225 ? ​
ANTONII [103]
The answer is it’s 5 pie over 4
8 0
3 years ago
A swimming pool had 2.52, point, 5 million liters of water in it. Some water evaporated, and then the pool only had 222 million
DIA [1.3K]
20% is the correct answer :)
7 0
3 years ago
If you place a 89-foot ladder against the top of a 80-foot building, how many feet will
Nuetrik [128]

Answer:

\large \boxed{\text{39 ft}}

Step-by-step explanation:

Let x be the distance from the foot of the ladder to the base of the building.

We have a right triangle, so we can use Pythagoras' Theorem.

\begin{array}{rcl}80^{2} + x^{2}& = & 89^{2} \\6400+ x^{2} & = & 7921\\x^{2} & = & 1521\\x & = & \sqrt{1521}\\& = &\mathbf{39}\\\end{array}\\\text{The foot of the ladder will be $\large \boxed{\textbf{39 ft}}$ from the base of the building,}

8 0
3 years ago
The number of caps a new online store sells increases by a factor of 4 each month. The function f(x)=4^x represents the number o
sladkih [1.3K]

For this case we have the following variables:

x: number of months

f (x): number of caps sold

The function that models the problem is given by:

f (x) = 4 ^ x

By the time the store sells 64 caps we have:

4 ^ x = 64

From here, we clear the number of months:

log4 (4 ^ x) = log4 (64)\\x = log4 (64)\\x = 3

Answer:

the store sells 64 caps in 3 monts

A. month 3

8 0
2 years ago
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