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3 years ago

80 POINTS !!!!! PLEASE HELP.

Mathematics

1 answer:

MArishka [77]3 years ago

8 0

Answer:

Step-by-step explanation:

Assume you are asking if 30 in, 30 in, 25 in triangle if right.

Since two longer sides are equal this can't be a right triangle. Remember the hypotenuse is the longest side and the right triangle can be isosceles if shorter sides are of same size.

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Find the volume of a pyramid with a square base , where the area of the base is 7.5 cm ^ 2 and the height of the pyramid is 8.6

svetlana [45]

Answer: 21.5cm³

Step-by-step explanation: This is your answer there is no way it is incorrect

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3 years ago

The population of cats that are rescued every year is currently 50,000 and declines at a rate of 1.2% every year. This models

larisa86 [58]

This models exponential decay.

8 0

3 years ago

6) (after 2.3) Consider the infinite system of linear equations in two variables given by ax + by = 0 where (a, b) moves along t

Paraphin [41]

Answer:

Step-by-step explanation:

Given infinite system of linear equations is ax + by = 0

when (a,b) moves along unit circle in plane.

a) system having unique system (0, 0)

Since two of equation in thus system will be

$1.x+0.y=0\\x=0$

and

$0.x+1.y=0\\y=0$

It is clear that x = 0, y= 0 is the only solution

b) Linear independent solution in this system gives some set of solutions

$1.x+0.y=0\\\x=0$

and

$0.x+1.y=0\\y=0$

Vector form is

$\left[\begin{array}{ccc}1&0\\0&1\end{array}\right] =I$

c) for this equation if add 0x +0y = 0 to system , Nothing will change

Because [0,0] satisfies that equation

d) If one of the equation is ax + by = 0.00001

where 0.00001 is small positive number

so, the system will be inconsistent

Therefore, the system will have no solution.

6 0

3 years ago

Will give Brainliest! What is the simplified form of the seventh root of x to the fifth power times the seventh root of x to the

jekas [21]

Answer:

2) x times the seventh root of x cubed

Step-by-step explanation:

$\displaystyle\sqrt[7]{x^5}\cdot\sqrt[7]{x^5}=\sqrt[7]{x^{5+5}}\\\\=\sqrt[7]{x^{7+3}}=\sqrt[7]{x^7}\cdot\sqrt[7]{x^3}\\\\=x\sqrt[7]{x^3}$

4 0

3 years ago

If some one can bike 32 miles in 160 minutes how long will it take them to go 1 mile

Leto [7]

5 minutes

32/160 = 0.2 mile/min

0.2x = 1

0.2x/0.2 = 1/0.5

x = 5

5 minutes

3 0

2 years ago