I need help with this please

Mathematics

1 answer:

MA_775_DIABLO [31]3 years ago

6 0

it is the last one im pretty sure

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Graph the system. Tell whether the system has one solution, no solution, or infinitely many solutions. y = –2x + 1 y = –2x – 3

Alchen [17]

Let's try the actual solution of the system

<span>y = –2x + 1
y = –2x – 3

Note that the slopes of the graphs of these two lines are the same: -2.

That means that the lines are parallel to one another.

Only the y-intercepts (1 and -3) are different.

Since the 2 lines never intersect, the system has no solution.

</span>

8 0

3 years ago

Please hurry

Studentka2010 [4]

Answer:

D 45.6 Square centimetres

Step-by-step explanation:

8 cm time 5.7 cm

8 0

3 years ago

Please help me thank you and number them

Ipatiy [6.2K]

The answer would b be d 8 I think

7 0

3 years ago

At the beginning of an environmental study, a forest covered an area of 1500 km2 . Since then, this area has decreased by 9.8% e

fredd [130]

Answer:

$A(t)=(0.902)^t \cdot 1500$ $[km^2]$

Step-by-step explanation:

In this problem, the initial area of the forest at time t = 0 is

$A_0 = 1500 km^2$

After every year, the area of the forest decreases by 9.8%: this means that the area of the forest every year is (100%-9.8%=90.2%) of the area of the previous year.

So for instance, after 1 year, the area is

$A_1 = A_0 \cdot \frac{90.2}{100}=0.902 A_0$