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sergey [27]
3 years ago
11

What are the solutions to the quadratic equation 4x^2 = 64?

Mathematics
1 answer:
stellarik [79]3 years ago
7 0

Answer:

C

Step-by-step explanation:

Given

4x² = 64 ( divide both sides by 4 )

x² = 16 ( take the square root of both sides )

x = ± \sqrt{16} = ± 4

Solutions are x = - 4 and x = 4 → C

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A cross-country team had a total of 10 practices last week, with each practice being in the morning or the afternoon. During eac
GalinKa [24]

x= morning

y = afternoon

 x + y = 10

x=10-y

5x + 6y =57

5(10-y) +6y =57

50-5y +6y =57

y=7

x=10-7 =3

 check 3*5 = 15, 7*6 = 42, 42 + 15 = 57


3 morning practices

3 0
3 years ago
Many 4 digit numbers can be formed using only the numbers 3 2 7 6 0 4 9 if
ryzh [129]
Hi!

The combination of 4 digit numbers using those numbers are: 3, 276; 3, 762; 3, 267; 3, 726; 3, 672 etc. This is pretty easy, now you try.

Hope I helped! Have a nice day!
6 0
3 years ago
How do you sketch the graph of y=(x 3)^2 6 and describe the transformation?
mr_godi [17]
This graph is a Quadratic Graph meaning it is a "U" shape. I am unable to help with the transformations since I am unaware of the signs in the problem. But I hope I helped
4 0
3 years ago
Angle. How many sides does the polygon have?
tia_tia [17]

The measures of the four angles of quadrilateral ABCD are 36°, 72°, 108° and 144°

<u>Explanation:</u>

A polygon has three or more sides.

Example:

Triangle has 3 sides

Square has 4 sides

Pentagon has 5 sides and so on.

27)

In a quadrilateral ABCD, the measure of ZA, ZB, ZC and ZD are the ratio 1 : 2 : 3 : 4

We know,

sum of all the interior angles of a quadrilateral is 360°

So,

x + 2x + 3x + 4x = 360°

10x = 360°

x = 36°

Thus, the measure of four angles would be:

x = 36°

2x = 2 X 36° = 72°

3x = 3 X 36° = 108°

4x = 4 X 36° = 144°

Therefore, the measures of the four angles of quadrilateral ABCD are 36°, 72°, 108° and 144°

5 0
3 years ago
The sum of two consecutive odd integers is 236 what is the smaller integer
poizon [28]
The correct answer is 117

x + y = 236
y = x + 2
x + x + 2 = 236
2x = 236 - 2
2x = 234
x = 234/2
x = 117

y = 117 + 2
y =119

Both are odd integers and 117 is smaller.
3 0
3 years ago
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