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3 years ago

Write an expression to match the statement 48 is 6 times greater than 8

1 answer:

6 0

48 = 6x8 , use key words “48 is” indicates that it’s 48 = and then 6 times greater than 8 indicates 6x8 ( is means equals, and times means multiplication )

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Find a quadratic function that includes the set of values below.<br> (0,9). (2,15) (3,12)

nlexa [21]

Answer:

$f(x) = -2x^2 + 7x + 9$

Step-by-step explanation:

$f(x) = ax^2 + bx + c\\f(0) = 9 => c = 9;\\f(2) = 15 = 4a + 2b + 9 2a + b = 3\\f(3) = 9a + 3b + 9 = 12 3a + b = 1\\Subtract the second equation from the first:\\-a = 2 => a = -2; b = 7; c = 9\\f(x) = -2x^2 + 7x + 9$

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3 years ago

Simpify the expression.<br>5+4z-2z<br><br>Simpilfied expression

Dafna11 [192]

Answer:

2z + 5

Step-by-step explanation:

you have to combine like terms

subtract 4z - 2z and you get 2z

the number with the variable next to it goes first not the constant

2z + 5

the variable is z and the constant is 5 because it doesn't have variable next to it

hope this makes sense and helps :)

tell me if you have any questions

4 0

3 years ago

Read 2 more answers

1 kilometer equaks how many meters

AVprozaik [17]

Answer:

the answer is 1000 metres

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3 years ago

Read 2 more answers

Mr. D’Alton made some radium in his lab. He used kg of the radium every time he 5 2ran his experiment. If he did the experiment

Usimov [2.4K]

Answer:

no lo sé por eso te lo escribo en español

5 0

3 years ago

Sin^22x - 2cos2x + 2=0

zhuklara [117]

Answer:

x=πn, n∈Z

Step-by-step explanation:

if sin²2x=1-cos²2x, then

1-cos²2x-2cos2x+2=0; ⇒ cos²2x+2cos2x-3=0; ⇔ (cos2x+3)(cos2x-1)=0;

$\left[\begin{array}{cc}cos2x+3=0\\cos2x-1=0\\\end{array} \ \ \left[\begin{array}{cc}x \ 'does-not-exist'\\cos2x=1\\\end{array} \ \ 2x=2\pi n, n=Z \ x=\pi n, n=Z$

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2 years ago