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SVETLANKA909090 [29]
3 years ago
10

Evaluate the expression for x = 2 and y = 4. Enter your answer in the box. 16x0 + 2x2 • y –1

Mathematics
1 answer:
IrinaK [193]3 years ago
4 0

Answer:

16×2×0+2×2×2.y-1

0+8.y-1

8.4-1

8.3

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Solve the system using the substitution method <br> 4x+6y=8<br> 3x+y=9
inessss [21]
4x+6y=8
3x+y=9

y = 9 - 3x

4x + 6(9-3x) = 8
4x + 54 - 18x = 8
14x = 46
x = 23/7

y = 9 - 3(23/7)
y = 9 - 69/7
y = - 6/7
4 0
3 years ago
Marni danced in a contest to raise money for an animal shelter. Marni raised $30 plus $1.80 per minute that she danced. She rais
Agata [3.3K]

Answer:

130 minutes

Step-by-step explanation:

Expression:

y = 1.80x + 30

264 = 1.80x + 30

234 = 1.8x

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2 years ago
The triangle below is equilateral. Find the length of side x in simplest radical form
Molodets [167]

Answer:

4sqrt(3)

Step-by-step explanation:

If the triangle is equilateral, the hypotenuse is 2x

We can use the Pythagorean theorem

a^2 + b^2 = c^2 where a and b are the legs and c is the hypotenuse

x^2 + 12^2 = (2x)^2

x^2 + 144 = 4x^2

144 = 4x^2 -x^2

144 = 3x^2

48 = x^2

Taking the square root of each side

sqrt(48) = sqrt(x^2)

sqrt(16*3) = x

4 sqrt(3) =x

6 0
3 years ago
What is the value of x? Enter your answer in the box. x = °
Gala2k [10]

Answer:

45

Step-by-step explanation:

All angles in a triangle add up to 180.

80 + 55 = 135

180 - 135 = 45

3 0
3 years ago
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2 5/8 -1 1/4 fraction
muminat

Answer:

11/8 or 1 3/8

Step-by-step explanation:

hope this helps

4 0
2 years ago
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