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3 years ago

What is 72 degrees + [x+15 degrees]??

Mathematics

1 answer:

a_sh-v [17]3 years ago

3 0

I'm pretty sure it would just be 87+x degrees right?

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Q(a+1) - 2q(a) if q(x) = x²+3x+4

siniylev [52]

$q(x) = {x}^{2} + 3x + 4$

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Step(1)

To find q(a) we just need to put a instead of x in q(x) function.

Let's do it...

$q(a) = {a}^{2} + 3a + 4$

Multiply sides by -2 :

$- 2q(a) = - 2( {a}^{2} + 3a + 4)$

$- 2q(a) = - 2 {a}^{2} - 6a - 8$

_________________________________

Step (2)

To find q(a+1) we just need to put a+1 instead of x in q(x) function.

Let's do it...

$q(a + 1) = ({a + 1})^{2} + 3(a + 1) + 4 \\$

$q(a + 1) = {a}^{2} + 2a + 1 + 3a + 3 + 4 \\$

$q(a + 1) = {a}^{2} + 5a + 8$

_________________________________

Step (3)

$q(a + 1) - 2q(a) =$

${a}^{2} + 5a + 8 - 2 {a}^{2} - 6a - 8 = \\$

$- {a}^{2} - a = - a(a + 1)$

And we're done.

Thanks for watching buddy good luck.

♥️♥️♥️♥️♥️

8 0

4 years ago

Using division to find ratios that are equivalent to 40:28

GrogVix [38]

Answer: 10:7

Step-by-step explanation:

40:28=10*7

6 0

3 years ago

Decimal multiplier by 1.7%

Svet_ta [14]

Answer:

times by 1.17

Step-by-step explanation:

hope this helps!

please give me a brainliest!!<3

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3 years ago

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If 9 oz make 10 servings how many oz do I need to make 13 servings

Luden [163]

9/10 = x/13. Solve for x. X = 11.7.
Your answer would be 11.7oz. Hope this helps

4 0

3 years ago

If Lisa earns $45 in 7.5 hours, find her unit rate in dollars per hour.

MakcuM [25]

Answer: lisa earns 6 dollars per hour

Step-by-step explanation:

45 divided by 7.5 =6

5 0

3 years ago

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