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4 years ago

Which is the best approximate solution of the system of linear equations y= 1.5x - 1 and y = 1

Mathematics

1 answer:

yan [13]4 years ago

6 0

Answer:

4/3

Step-by-step explanation:

We can immediately eliminate y by setting y = 1 equal to y = 1.5x - 1:

1 = 1.5x - 1, or 1.5x = 2, or x = 2/1.5 = 4/3

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If r = 9,6 = 5, and g = -6, what does (r+b-9) (b+g) equal?

devlian [24]

Answer:

-5

Explanation:

First, expand.

r + b - 9 × b + g.

If r = 9, b = 5, and g = -6, this would be the answer:

9(r) + 5(b) - 9 = 5

5(b) + -6(g) = -1

5 × -1 = -5

6 0

3 years ago

Please help me out ?

vova2212 [387]

An obtuse triangle is formed if there is an angle that has a measure of more than 90 degrees. You can determine if an obtuse angle is formed by two sides of a triangle if it meet this condition:

Let a and b be two sides of a triangle and c is the longest side:
$a^{2} + b^{2} \ \textless \ c^{2}$

So taking your given:

$10^{2} + 15 ^{2}$ < $c^{2}$
100 + 225 < $c^{2}$
325 < $c^{2}$

To get the smallest possible number, just get the square root of both sides:

$\sqrt{325}$ < $\sqrt{c^{2} }$
18.03 < c

So your smallest possible whole number is 19

5 0

4 years ago

Which has a sum = to 2 3/8 +3 4/8?

monitta

B) 19/8 + 28/8

have a great day!

3 0

4 years ago

Help please!!!!!!!!!!!

ss7ja [257]

First, solve 7 times square root of 5.

7 x 2.236 = 15.652

Now find the solution above that results in 15.65.

We can quickly eliminate the top 2 as they will result in very large numbers.

The bottom problem is quick to check - simplifies to (7 + 5)/5 = 2.4. No

It looks like the next to last answer is our best bet.

Figure the square root of 196 (14) and multiply by square root of 5 (2.236). Giving us 31.304.

Divide the result by 2. And that gives us 15.652.

If you knew the square root of 196 was 14, it was helpful to find this quickly because 14/2 = 7 and then the other square root was the 5 from the problem.

5 0

3 years ago

There are 150 children at summer camp. Using the table below, what is the percentage, to the nearest whole percent, of children

lora16 [44]

Answer:

I would say around 41.3% I'm sorry if I am wrong :/

Step-by-step explanation:

62/150 around 0.413

6 0

3 years ago