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emmainna [20.7K]
2 years ago
13

Solve 2x2 + 20x + 8 = 0 by completing the square.

Mathematics
2 answers:
Elodia [21]2 years ago
3 0

Answer:

Answer B:

Step-by-step explanation:

just took the test)))):

sammy [17]2 years ago
3 0

the answer: B

ok done. Thank to me :>

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20 POINTS<br> Can someone check over these? I have a quiz on it tomorrow :(
Mama L [17]

Looks good! You have the right answers.

However, the graph for 12 and 15 is inaccurate! Because he starts from a stop sign/stop light, the graph's speed should start from the origin!

Not to confuse you or anything, but this means the graph does not follow the description of the problem. Please let your teacher know so s/he can fix the worksheet.

3 0
3 years ago
Can someone help please help sorry I know it’s easy but ......
NARA [144]

Answer:

standard

Step-by-step explanation:

4 0
3 years ago
If 24 marbles have a mass of 60g what would be the mass of 60 marbles
blondinia [14]

Answer:

300 g

Step-by-step explanation:

First divide the mass of those 12 marbles (60 g) by the number of marbles which have 60 g mass (12 marbles). You'll get  the answer as 5 g , which means 5 g is the mass of 1 marble. Now multiply the answer by 60 (specification of marbles). You'll have the answer as 300 g.

i.e.

60 / 12 = 5

5 x 60 = 300

7 0
3 years ago
Alaina is selling wreaths and poinsettias for her chorus fundraiser. Wreaths cost $27 each poinsettias cost $20 each. If she sol
sleet_krkn [62]

Answer:

20$ × 15 = 300

543- 300= 243

243÷ 27= 9

she sold 9 wreaths

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
HELPPPP NOWW
Effectus [21]

Answer:

Volume of a parallelogram is v=whl

Area of s parallelogram is A= bh

Circumference of a circle= rd

Area of a circle= rd^2

Area of a triangle is 1/a <em>bh</em>

Area of a trapezoid is 1/2(b1 + b2)h

Perimeter of a quadrilateral is 2L + 2W

I couldn't drag the image but I knew what I was doing!

8 0
3 years ago
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