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Nana76 [90]
3 years ago
13

Solve the equation for y 9x - 3y = 12

Mathematics
2 answers:
Mekhanik [1.2K]3 years ago
8 0
3y = 9x - 12
y = 3x - 4

i am a mathematics teacher. if anything to ask please pm me
liberstina [14]3 years ago
8 0
I think its 1 for both<span />
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Is 1.2 greater less than or equal to 2.1
xz_007 [3.2K]

Answer: 1.2 is less than 2.1

Step-by-step explanation:

Since 1 is less than 2, 1.2 is less than 2.1.

3 0
3 years ago
What’s the answer no work needed<br> Given f (x) = 5x2 and g(x) = 2x + 3, find f(g(-4))
Crazy boy [7]

Answer:

125

Step-by-step explanation:

Given

f(x) = 5x²

g(x) = 2x + 3

Now

g(-4) = 2 * (- 4) + 3

= - 8 + 3

= - 5

Also

f(g(-4)) = f( -5)

= 5 * ( -5)²

= 5 * 25

= 125

4 0
3 years ago
I need help , can someone help me
spayn [35]

Answer:   C.   4:1

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8 0
3 years ago
The numbers 2/1/3,h,k,7/7/8 firm a geometric progression. find the value of h and of k
taurus [48]

\text{We have }\ 2\dfrac{1}{3},\ h,\ k,\ 7\dfrac{7}{8}.\\\\\text{Convert the mixed numbers to the improper fractions}\\\\2\dfrac{1}{3}=\dfrac{2\cdot3+1}{3}=\dfrac{7}{3}\\\\7\dfrac{7}{8}=\dfrac{7\cdot8+7}{8}=\dfrac{63}{8}\\\\\text{If}\ a_1,\ a_2,\ a_3,\ a_4\ \text{is a geometric seqence, then:}\\\\\dfrac{a_2}{a_1}=\dfrac{a_3}{a_2}=\dfrac{a_4}{a_3}=r\\\\a_2=a_1r\\\\\text{and}\ \dfrac{a_4}{a_1}=r^3\\\\\text{Substitute:}

r^3=\dfrac{\frac{63}{8}}{\frac{7}{3}}\\\\r^3=\dfrac{63}{8}\cdot\dfrac{3}{7}\\\\r^3=\dfrac{9\cdot3}{8\cdot1}\\\\r^3=\dfrac{27}{8}\to r=\sqrt[3]{\dfrac{27}{8}}\\\\r=\dfrac{3}{2}\\\\h=2\dfrac{1}{3}\cdot\dfrac{3}{2}=\dfrac{7}{3}\cdot\dfrac{3}{2}=\dfrac{7}{2}\\\\k=\dfrac{7}{2}\cdot\dfrac{3}{2}=\dfrac{21}{4}\\\\Answer:\ \boxed{h=\dfrac{7}{2}=3\dfrac{1}{2}\ and\ k=\dfrac{21}{4}=5\dfrac{1}{4}}

8 0
3 years ago
HRRY UP A$AP EZ question turn this number to scientific notation 6,791,000 &amp; HRRY UP PLZ
lidiya [134]
Move the decimal places, the answer is 6.7 x 10^6
3 0
3 years ago
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