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Lorico [155]
2 years ago
7

X2+8x=-1 complete the square

Mathematics
1 answer:
Sophie [7]2 years ago
6 0
(X+4)^2-15

This is the answer
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Can you help me, please?​
anyanavicka [17]
I can not see the image sorry!!!
5 0
2 years ago
Read 2 more answers
Which algebraic expression represents "one-third of the number s, plus t"?
TiliK225 [7]

Answer:

A) s/3 +t

Step-by-step explanation:

To represent 1/3 of a number, we can simply divide this number by 3, meaning if s is the number, 1/3 of s would be s/3. Now to add t all we have to do is + t, making our answer s/3 + t

6 0
3 years ago
Read 2 more answers
You invested $29000in two accounts paying 3% and 8% annual interest, respectively. If the total interest earned for the year was
Furkat [3]

Answer:

Amount invested at 3%= $21,000

Amount invested at 8% = $8,000

Step-by-step explanation:

$29,000 was invested in two accounts

The two accounts have annual interest of 3% and 8%

The total interest that was earned for the year is $1,270

Let y represent the amount invested at 3%

y = 3%

The amount invested at 8% can be represented as

29,000-y

Therefore the value of y can be calculated as follows

3/100 × y + 8/100(29,000-y)= 1270

0.03y + 0.08(29,000-y)= 1270

0.03y + 2320 - 0.08y= 1270

0.03y - 0.08y= 1270-2320

-0.05y= -1050

y = 1050/0.05

y= 21,000

The amount invested at 3% is $21,000

The amount invested at 8%

= 29,000-21,000

= $8000

Hence the amount invested at 3% is $21,000 and the amount invested at 8% is $8000

4 0
2 years ago
Someone do these please!
IgorLugansk [536]

Answer:

4). A) .20 ,   .194   B) the Cost-Co price is better     5)  A)   476.991  , 479.99    

B) 10% is better

Step-by-step explanation:

7 0
2 years ago
Help how to solve! 24=3r divided by 4
natali 33 [55]

24=3r/4

Multiply both sides by 4

24=(3r)/4

(24)*(4)=(3r/4)*(4)

96=3r

Flip the equation

3r=96

Divide both sides by 3

3r/3=96/3

r=32

Now lets check if the answer is good

24=3(32)/4

24= 96/4

24=24

You see , the answer is good .


I hope that's help ! Let me know .

6 0
3 years ago
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