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nadya68 [22]
3 years ago
12

Solve the quadratic equation by completing the square.

Mathematics
2 answers:
const2013 [10]3 years ago
8 0

Answer:

x = 3 + StartRoot 5 EndRoot and x = 3 – StartRoot 5 EndRoot

Step-by-step explanation:

(x - 3)^2 = 5

x - 3 = ±√5

x = 3 + √5, 3 - √5.

Ksju [112]3 years ago
4 0

Answer:

B

Step-by-step explanation:

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-. Lori needs $4,000 to take her family on
prisoha [69]

Answer:

Lori would have to save $5,760

Step-by-step explanation:

Since 320×6=1920, you would have to add to see witch number would be best to save up too. You would get $5,760 when you multiple by 3.If you multiple by 2,it wouldn't give you enough money.

7 0
3 years ago
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50 percent of 620 written as a percent
SSSSS [86.1K]
50% of 620 is half of 620.

Writing 50% of 620 is 50%. (Or 310 if you wanted to know half of 620)
5 0
3 years ago
Please help <br> The diagram shows a 5ft student standing near a tree
Novosadov [1.4K]

Answer:

25 ft

Step-by-step explanation:

The diagram shows two triangles that are similar.  Similar triangles have equal angles and sides that are proportional to each other.  Since the base of each triangle is given, we can find the proportion of the sides:

\frac{smaller}{larger}=\frac{8}{40}=\frac{1}{5}

Given the ratio of the smaller to larger triangle, we can set up a proportion to find the missing height of the larger triangle:

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8 0
3 years ago
Help please and thank you
bogdanovich [222]
31.5
because 3 gallons are lost per minute so 3 x 10.5= 31.5
3 0
3 years ago
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HELP Solve for x and y
BabaBlast [244]

Answer:

x = 96

y = 66

Step-by-step explanation:

The sum of interior angles of the given shape is 360:

x + y + 123 + 75 = 360

x + y + 198 = 360 subtract 198 from both sides

x + y = 162

The angle with the measure 114 and angle y are supplementary so their sum is 180

y + 114 = 180

y = 66 since x + y = 162 we can use this to find the value of x

x = 162 - 66

x = 96

5 0
2 years ago
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