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2 years ago

Solve the linear system -x+2y=3 and 2x+y=4 by graphing

Mathematics

1 answer:

Scrat [10]2 years ago

4 0

Answer:

(x, y) = (1, 2)

Step-by-step explanation:

Given the features of graphing calculators these days, obtaining a solution by graphing is one of my favorite methods. The attached graph shows the solution to be (x, y) = (1, 2).

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Which equation could represent a linear combination of the system?

Tems11 [23]

Answer:

15/2v = 33

Step-by-step explanation:

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2 years ago

6. Josh rolled a bowling ball 3.45 m/s down a lane in 2.5 s. How long is the bowling lane?

Lilit [14]

See below hope it helps

Answer: 8.625 m

Step by step explanation:

3.45 m/s * 2.5 s = 8.625 m

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2 years ago

The disease chikungunya arrived in the Americas in 2013 and spread rapidly in 2014. While seldom fatal, the disease causes debil

Alex73 [517]

Answer:

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Step-by-step explanation:

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5 0

3 years ago

Ben buys a car for $50,000. The value of the car decreases at a rate of 4% per year. How much will the car be worth in 3 years?

lara31 [8.8K]

Given that the value of $50000 car decreases by 4% per year, the value after 3 years will be given by exponential form:
y=abˣ
where:
a=initial value
b=decreasing rate
x=time in years
from the information:
a=50000, b=0.96, x=3
thus
y=50000(0.96)³
simplifying we get:
y=$44, 236.8
~$44237

Answer:
<span>B. $44,237</span>

6 0

3 years ago

Can someone help me please?

stira [4]

Answer:

500000

Step-by-step explanation:

We need to find the value of the given expression :

$5^{\dfrac{5}{2}}\times 20^{\dfrac{3}{2}}\div 10^{-2}$

We can do it as per BODMAS rule.

$5^{\dfrac{5}{2}}\times (\dfrac{20^{\dfrac{3}{2}}}{10^{-2}})\\\\=5^{\dfrac{5}{2}}\times {20^{\dfrac{3}{2}}}\times {10^{2}}\\\\=5^{\dfrac{5}{2}}\times {20^{\dfrac{3}{2}}}\times 100\\\\=5^{\dfrac{5}{2}}\times {(5\times 4)^{\dfrac{3}{2}}}\times 100\\\\=5^{\dfrac{5}{2}}\times {(5^{\dfrac{3}{2}})\times (4)^{\dfrac{3}{2}}}\times 100\\\\=5^{(\dfrac{5}{2}+\dfrac{3}{2})}\times 2^2^{\dfrac{3}{2}}\times 100\\\\=5^4\times 2^3\times 100\\\\=625\times 8\times 100\\\\=500000$

So, the required answer is 500000.

7 0

2 years ago