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3 years ago

5. Complete the table of values for y = -2x + 11. Please help ❤️

Mathematics

1 answer:

lisabon 2012 [21]3 years ago

6 0

Answer:

In the explanation

Step-by-step explanation:

x = 0, y = -2*0+11=11

x = 1, y = -2*1+11=9

x = 4, y = -2*4+11=3

Hope this helps!

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One positive number is 8 more than twice another. If their product is 234 find the numbers

Setler [38]

Answer:

Step-by-step explanation:

Let the larger number = x

Let the smaller number = y

x = 2*y + 8

x * y = 234 Put the first equation into the second.

(2y + 8)*y = 234 Remove the brackets

2y^2 + 8y = 234 Subtract 234 from both sides

2y^2 + 8y - 234 =0 Factor out 2

2(y^2 + 4y - 117) = 0 Divide by 2

y^2 + 4y - 117 = 0

(y + 13)(y - 9)

y = 9 is one answer

x * y = 234

x * 9 = 234 Divide by 9

x = 234/9

x = 26

The two numbers are 9 and 26

3 0

2 years ago

HURRYYY A company is introducing a new product. The equation y = –0.001(x – 600)2 + 90 predicts the expected profit, in thousand

ratelena [41]

Answer:

Its D (600,000)

Step-by-step explanation:

Took the test

8 0

4 years ago

Read 2 more answers

5a - 5b + 8c = 6<br> a + 2b + c = 12<br> 3b - c = 10<br> What is the value of b?

uranmaximum [27]

B = 4

a=2
b=4
c=2

it’s just solving simultaneous equations

7 0

3 years ago

Read 2 more answers

Algebra 2: PLEASE HELP ME!!

vfiekz [6]

Looks more like Trig than Algebra II

They want us to apply the sum angle formula to $\sin(x + \frac{5 \pi}{6})$

5π/6 is 150°; I find it easier to think in degrees.

When the tangent of x is 3/4 that's a right triangle with opposite 3, adjacent 4 so hypotenuse 5. So a sine of 3/5 and a cosine of 4/5, both positive because we're told x is in the first quadrant.

The sine sum angle formula is

$\sin(a+b) = \sin a \cos b + \cos a \sin b$

$\sin(x+\frac{5\pi}{6}) = \sin x \cos \frac{5\pi}{6} + \cos x \sin \frac{5\pi}{6}$

We know sin 150° = sin 30° = 1/2 and cos 150° = - cos 30° = -√3/2

$\sin(x+\frac{5\pi}{6}) = \frac 3 5 (- \sqrt{3}/2) + \frac 4 5 (1/2)$

$\sin(x+\frac{5\pi}{6}) = \dfrac{ 4- 3\sqrt{3}}{10}$

Third choice

3 0

4 years ago

1 . what is the surface area of a cube with a side length of 1/2 inches ??

Lelechka [254]

Answer:

2. you can use the formula y2-y1/x2-x1

4-(-6)/1-(-2) = 10/3

4 0

3 years ago