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Oksi-84 [34.3K]
3 years ago
6

Complete the square for 5x^2+10x-16.

Mathematics
1 answer:
Lelechka [254]3 years ago
7 0
Answer = 5(x+1)^2 -21

5 {x^2 + 2x } - 16

5 {(x+1)^2 -1 } - 16
5(x+1)^2 -5 - 16

5(x+1)^2 -21
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3)Find the Circumference of this circle.<br> 9 in
mr Goodwill [35]

Answer:

56.52 in

Step-by-step explanation:

  1. 2πr = C
  2. 2 × 3.14 × 9 = C
  3. 2 × 3.14 = 6.28
  4. 6.28 × 9 = 56.52 in

I hope this helps!

4 0
3 years ago
Graph each equation
aliya0001 [1]
Just go one point at a time on your graph:
What does y equal when x is zero?
When x is 1?
When x is 2?
That's how you plot a graph.
8 0
3 years ago
If you select a card at random, what is the probability of getting:A number smaller than 5 (counting the ace as a 1)?
garri49 [273]

4 Aces, 4 2's, 4 3's 4 4's

= 16 cards total out of 52 cards

 so probability would be 16/52 which reduces to 4/13

4 0
3 years ago
Verify a(b-c)=ab-ac for a=1.6;b=1/-2;&amp; c=-5/-7​
harina [27]

Given:

a=1.6,b=\dfrac{1}{-2},c=\dfrac{-5}{-7}

To verify:

a(b-c)=ab-ac for the given values.

Solution:

We have,

a=1.6,b=\dfrac{1}{-2},c=\dfrac{-5}{-7}

We need to verify a(b-c)=ab-ac.

Taking left hand side, we get

a(b-c)=1.6\left(\dfrac{1}{-2}-\dfrac{-5}{-7}\right)

a(b-c)=1.6\left(-\dfrac{1}{2}-\dfrac{5}{7}\right)

Taking LCM, we get

a(b-c)=1.6\left(\dfrac{-7-10}{14}\right)

a(b-c)=\dfrac{16}{10}\left(\dfrac{-17}{14}\right)

a(b-c)=\dfrac{8}{5}\left(\dfrac{-17}{14}\right)

a(b-c)=-\dfrac{68}{35}\right)

Taking right hand side, we get

ab-ac=1.6\times \dfrac{1}{-2}-1.6\times \dfrac{-5}{-7}

ab-ac=-\dfrac{16}{20}-\dfrac{8}{7}

ab-ac=-\dfrac{4}{5}-\dfrac{8}{7}

Taking LCM, we get

ab-ac=\dfrac{-28-40}{35}

ab-ac=\dfrac{-68}{35}

Now,

LHS=RHS

Hence proved.

7 0
2 years ago
The factored form of 25p29 10 – 169?
Yanka [14]

Answer:

I'm guessing you are trying to say this is 25p29=10-169 If not let me know in comments and I'll change it! But here is the answer: 72750<em>p</em><em>-</em><em>1</em><em>6</em><em>9</em>

<em>Expla</em><em>ined</em><em>:</em>

25p*29=10 – 169

solve=

72750p-169

Hope this helps! If so please mark brainliest and rate/heart if it did!

8 0
2 years ago
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