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3241004551 [841]

3 years ago

12

If slope is 3 and y-intercept is 2 , what is it in a linear equation

1 answer:

Pepsi [2]3 years ago

8 0

It would be y=3x+2 because in y=mx+b, m is the slope and b is the y-intercept

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Jenny bought a 5 notebooks and 2 pencils, and the total was 9 dollars.

weeeeeb [17]

You would solve this with simultaneous equations, so if we write it as:
5n + 2p = 9
3n + 2p = 6
(subtract)
2n = 3
÷ 2
notebooks = 1.5

Now you would substitute it in:
(3 × 1.5) + 2p = 6
4.5 + 2p = 6
- 4.5
2p = 1.5
÷ 2
pens = 0.75

So your final answer is notebooks are $1.50 and pens are $0.75, I hope this helps!

6 0

3 years ago

Frequent food questionnaires (FFQ) are a simple way to obtain information on the foods individuals consume by asking them questi

Ilia_Sergeevich [38]

Answer:

Asnwer is A

Step-by-step explanation:

since the correlation between the FFQ and DR is 0.89

x y xy $x^{2}$ $y^{2}$

8.26 1.68 13.8768 68. 2276 2.8224

0.83 0 0 06889 0

20.13 15.1 303.963 405.2169 228.01

11.16 7.49 83.5884 124.5456 56.1001

7.18 12.84 92.1912 51.5524 164.8656

1.76 0 0 3.0976 0

22.46 25.06 567.8596 513.4756 628.0036

-----------------------------------------------------------------------------------------------------------

∑ $x_{i}$ = ∑ $y_{i}$ = ∑ $x_{i} y_{i}$ = ∑ $x_{i}^{2} y_{i}^{2}$ = ∑ $y_{i} ^{2}$ =

71.98 62.17 1061.479 1166.8046 1079.8017

-------------------------------------------------------------------------------------------------------------

Correlation Coefficient or Pearson Correlation is given by:

the rest calculation is in the attached image

3 0

3 years ago

Simplify the number into simplest radical form. Use the factor tree to help determine the factors. StartRoot 96 Endroot StartRoo

NikAS [45]

Answer:

$[tex]4608\sqrt{3}$ [/tex]

Step-by-step explanation:

1. $\sqrt{96} *\sqrt{6}* 2*\sqrt{6}*4 *\sqrt{6} *4*\sqrt{3}$

2. $\sqrt{2^{5} *3} \sqrt{6} *2\sqrt{6}*4\sqrt{6}*4\sqrt{3}$ <em>factoring 96</em>

<em>since $\sqrt{2^{5}*3 } = \sqrt{2^{5} } \sqrt{3}$ </em>

3. $\sqrt{2^{5} } \sqrt{3}\sqrt{6} *2\sqrt{6}*4\sqrt{6}*4\sqrt{3}$

<em>using exponent rule - $(a^{b}) ^{c} = a^{bc}$ </em>

<em> $\sqrt{2^{5} } = 2^{5/2}$ </em>

4. $2^{5/2}\sqrt{3}\sqrt{2*3} *2\sqrt{6}*4\sqrt{6}*4\sqrt{3}$

<em>doing some simple simplification and $4=2^{2}$ and 6=2*3</em>

5. $2^{5/2} \sqrt{3} \sqrt{2} \sqrt{3} *2\sqrt{2} \sqrt{3} *2^{2}\sqrt{2} \sqrt{3}*4\sqrt{3}$

<em>collecting the roots on one side and applying exponent rule</em>

6. $\sqrt{3} \sqrt{3}\sqrt{3} \sqrt{3}\sqrt{2} \sqrt{2}\sqrt{2} *2^{5/2+1+2+2} \sqrt{3}$

<em>Applying exponents rule on all $\sqrt{3}$ and $\sqrt{2}$ </em>

<em>7. $2^{1/2+1/2+1/2} *2^{5/2+1+2+2}*3^{1/2+1/2+1/2+1/2+1/2}$ </em>

<em>combining all powers of 2</em>

8. $2^{1/2+1/2+1/2+5/2+1+2+2}*3^{1/2+1/2+1/2+1/2+1/2}$

<em>Simplifying</em>

9. $2^{9} *3^{2}\sqrt{3}$

10. $512*9\sqrt{3}$

11. $4608\sqrt{3}$

3 0

3 years ago

Read 2 more answers

Amery has x books that weigh 2 pounds each and y books that weigh 3 books each. the total weight of his books is 60 pounds.write

Zanzabum

I hope this helps you

7 0

3 years ago

Mr. Davis has 15 students in his class he wants to send three of his students to pick up books for the class how many combinatio

rusak2 [61]

Answer:

45 combinations

Step-by-step explanation:

15*3= 45

6 0

2 years ago

Read 2 more answers