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N76 [4]
2 years ago
13

3.11 unit test quadratic equations PLEASE SOLVE 25 POINTS BEING GIVEN. PLEASE DOT SCAM ME I NEED HELP

Mathematics
1 answer:
velikii [3]2 years ago
3 0

Answer:

30.25 & 33.25

Step-by-step explanation:

x² + 11x + (5.5)² = 3+ (5.5)²

x² + 11x + 30.25 = 33.25

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Multiplicasion,que me da 32​
ohaa [14]

Answer: 4 por 8

Step-by-step explanation:

6 0
3 years ago
1. 27 marbles are shared between some children. Each child recieves six marbles and there are three marbles left over. How many
vova2212 [387]
1. 27 - 3 (because 3 are left over) = 24. Then, 24 ÷ 6 = 4 children. 

2. If Mina has £7.20, that means she has 720 pence. If half is given to her brother, then she has £3.60 left. (720 ÷ 2 = 360 pence, which is £3.60) 

3. 17 × 10 = 170
2 × 20 = 40
170 + 40 = 210, which is £2.10 

5 0
2 years ago
What is the number in scientific notation? 135,000,000,000,000
Sati [7]

it would be 1.35 x 10^14

6 0
2 years ago
Read 2 more answers
24) 28 + 3k &lt; 5(–3 – 8k)<br> -4 -3<br> -2<br> -1<br> 0<br> 2<br> 3<br> 4<br> 5 6
ahrayia [7]

Answer:

k < - 1

Step-by-step explanation:

28 + 3k < 5(-3-8k)

28 + 3k < - 15 - 40k

28 + 15 < - 40k - 3k

43 < - 43k

43/- 43 > k (switch signs because 43 is negative)

k < -1

6 0
2 years ago
The total profit for a company in February was 15% higher than it was in January. The total profit for the two months was $122,9
stepladder [879]

Answer:

The profit for January is $57,200.

Step-by-step explanation:

The total profit for the two months would be the result of adding up the profit in January plus the profit in February:

Total profits=Profit in January+Profit in February

Also, you can say that profits in January can be represented by x and you know that the profit for a company in February was 15% higher than it was in January which can be expressed as: 1.15x. Moreover, you know that the total profit for the two months was $122,980. Now, you can replace the values on the formula:

122,980=x+1.15x

Now, you can solve for x:

122,980=2.15x

x=122,980/2.15

x=57,200

According to this, the answer is that the profit for January is $57,200.

7 0
3 years ago
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