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nata0808 [166]
3 years ago
9

12ab = 4 solve for a

Mathematics
2 answers:
WITCHER [35]3 years ago
8 0

Answer:

-3

Step-by-step explanation:

Levart [38]3 years ago
6 0
12ab=4
ab=4/12
ab=.3
a=.3/b
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How do you find area and perimeter of a rectangle with the side lengths of 5x^2 and 12x?
valentinak56 [21]

Answer:

The area can be found by multiplying the two terms, and the perimeter by doubling and adding them.

Using this, we find that the area of the rectangle is 60x³, and the perimeter is 10x² + 24x.

Step-by-step explanation:

First let's find the area:

5x² × 12x

= 60x³

Now the perimeter:

2(5x² + 12x)

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3 years ago
Using the Law of Cosines, in triangle DEF, if e=18yd, d=10yd, f=22yd, find measurement of angle D
Ivahew [28]
Check the picture below.

\bf \textit{Law of Cosines}\\ \quad \\
c^2 = {{ a}}^2+{{ b}}^2-(2{{ a}}{{ b}})cos(C)\implies 
c = \sqrt{{{ a}}^2+{{ b}}^2-(2{{ a}}{{ b}})cos(C)}
\\\\\\
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-------------------------------\\\\
\begin{cases}
d=10\\
e=18\\
f=22
\end{cases}\implies cos^{-1}\left(\cfrac{{{ 18}}^2+{{ 22}}^2-10^2}{2(18)(22)}\right)=\measuredangle D

\bf \implies cos^{-1}\left(0.893\overline{93}\right)=\measuredangle D\implies 26.63^o\approx \measuredangle D

7 0
3 years ago
At the start of 2014, tim house was worth £100,000 the value of the house increases by 10%per every year work out the value of h
kotykmax [81]

Answer:

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Step-by-step explanation:

The formula for calculating future value:

FV = P (1 + r)^n

FV = Future value  

P = Present value  

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2 years ago
100 POINTS AND BRAINLIST
Alla [95]
  • X=B

All ratios remains same

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\\ \rm\hookrightarrow tanX=\dfrac{sinX}{cosX}=\dfrac{0.9}{0.42}=2.14

3 0
2 years ago
Read 2 more answers
Ed bought 3 L of water 2750 mL of sports drink and 2.25 L of juice which statement is true
Leona [35]
3L is the largest quanity, 2750mL is 2nd largest, and 2.25L is the smallest. hope that helps
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