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andriy [413]
2 years ago
6

Help with nine through ten please

Mathematics
2 answers:
o-na [289]2 years ago
8 0
350 gallons for 9

Car with 15 gallons is 427.5 miles and a motorcycle with 5 is 320 so he is wrong
tatyana61 [14]2 years ago
7 0
9. 350. it is 350 because 25 = 10 * 2 + 5. 5 is half of 10 so i know that i need to divide 140 by 2 to get 70, and add that plus 140*2 (280)
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Let r and s be the roots of x^2 - 6x + 2 = 0. Find (r - s)^2.
Sphinxa [80]

Answer: (r-s)^{2} = 28

Step-by-step explanation:

  • x^{2} -6x+9=-2+9
  • (x-3)^{2}=7
  • (x-3)= -\sqrt{7} or \sqrt{7} <-- there's no plus/minus sign.
  • (x-3) = -\sqrt{7}
  • x = 3 -\sqrt{7} <-- root.
  • (x-3) = \sqrt{7}
  • x = 3+\sqrt{7} <-- root.
  • [(3-\sqrt{7})-(3+\sqrt{7})]^{2}
  • (3-\sqrt{7} -3 - \sqrt{7})^{2} <-- don't forget to distribute the negative.
  • (-2\sqrt{7})^{2}
  • (4)(7)
  • 28
4 0
2 years ago
José put $1,500 into a savings account. He earns 3% interest every year. How much simple interest will he earn at the end of 3 y
stiv31 [10]

He would have a total of: $1639.09

In intrest alone he would've made 1639.09

Step-by-step explanation:

3%= 0.03

  • The first thing you do is multiply $1,500 by the %3 (0.03).

  • When your done multiplying, you should get 45.

  • Add 45 to 1500

  • Now you have 1545

  • Then you repeat the process over, two more times. However the numbers will change.

7 0
2 years ago
I need to know what this table is cause I need the answer
olga2289 [7]

Answer:

f(- 2) = 1

Step-by-step explanation:

f(- 2) means what is the value of f(x) when x = - 2

From the table we can see that when x = - 2 f(x) = 1

Hence

f(- 2) = 1

4 0
3 years ago
Read 2 more answers
Plz help me so confused
Alex Ar [27]
If you look at the chart (about the chores) you can find out everthing
4 0
3 years ago
Find the correct linear equation: y is the quotient of thrice a number and ten.
Anarel [89]

Answer:

y = (3x)/10

Step-by-step explanation:

quotient  = divide

7 0
2 years ago
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