3 years ago

Which expression is equivalent to 2(9 + 7)?

Mathematics

1 answer:

il63 [147K]3 years ago

3 0

Step-by-step explanation:

option 1 is ur answer hope this helpss bro

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IrinaK [193]

The question can be solved as follows:

$\frac{5.52\times10^3}{1.2\times10^5}=\frac{5.52}{1.2}\times10^{-2}=4.6\times10^{-2}$

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$\frac{5.52\times10^3}{1.2\times10^5}=4.6\times10^{-2}$

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1 year ago

C=100+25h solve for h

aivan3 [116]

Answer:

h=(c/25)-4

Step-by-step explanation:

c-100 = 25h. "/25"

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Murrr4er [49]

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3 years ago

Which Two Numbers Add Up To Negative 26 And Multiply To 11?

Fynjy0 [20]

Xy=11
x+y=-26

x+y=-26
minus x both sides
y=-26-x

sub for y
x(-26-x)=11
-26x-x^2=11
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x^2+26x+11=0

ax^2+bx+c=0
x= $\frac{-b+/- \sqrt{b^{2}-4ac} }{2a}$

a=1
b=26
c=11

x= $\frac{-26+/-\sqrt{26^{2}-4(1)(11)} }{2(1)}$
x= $\frac{-26+/-\sqrt{676-44} }{2}$
x= $\frac{-26+/-\sqrt{632} }{2}$
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x= $-13+/-\sqrt{158}$

x= $-13+\sqrt{158}$ or $-13-\sqrt{158}$

aprox

x=-0.420195 or -25.5698

those are the numbers

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3 years ago