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suter [353]
3 years ago
9

-5=-2/9xI dont know the answer​

Mathematics
2 answers:
love history [14]3 years ago
4 0
-5=-2/9x.

x=22.5 / x=45/2
galben [10]3 years ago
4 0

Answer:

\boxed{ \bold{ \huge{ \boxed{ \sf{x =  \frac{2}{45} }}}}}

Step-by-step explanation:

\sf{ - 5 =  \frac{ - 2}{9x} }

Apply cross product property

\dashrightarrow{ \sf{ - 5 \times 9x =  - 2}}

\dashrightarrow{ \sf{ - 45x =  - 2}}

Divide both sides by -45

\dashrightarrow{ \sf{ \frac{ - 45x}{ - 45}  =  \frac{ - 2}{ - 45} }}

\dashrightarrow{ \sf{x =  \frac{2}{45} }}

Hope I helped!

Best regards! :D

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I need help :3 !!!!!!
Vikki [24]

Answer:

b = 43

Since 43 is congruent to b

4 0
3 years ago
Read 2 more answers
Determine the combined surface area of a cube with an edge that is 3.5 cm long and a cube with an edge that is 2 cm long.
Elis [28]

Answer:

97.5

Step-by-step explanation:

3.5cm cube surface area:

3.5*3.5*6 (the 6 faces of the cube) =

73.5

2cm cube surface area:

2*2*6 =

24

combined surface area:

73.5+24=

97.5

5 0
3 years ago
Which graph represents the function -2x - 5y = -10? <br> Please explain!!
damaskus [11]
The answer would be J because if the equation was transferred into a positive then it would be 2y and 5x marking 5x on the bottom and 2y vertically.
Hope this helps!!
6 0
3 years ago
Read 2 more answers
(a) Fiona has $450 in her savings account. She deposits $40 each month. Liam has $975 in his checking account. He writes a check
kenny6666 [7]

Answer:

y=450+40x        y=975-65x

Step-by-step explanation:

at five months they will have the same amount of money in their accounts

7 0
2 years ago
Find the length of the tangent segment AB to the circles centered at O and O' whose radii are a and b respectively when the circ
bixtya [17]

Answer:

AB=2\sqrt{ab}

Step-by-step explanation:

From figure,

OA=a,  \quad \quad O'B=b\\\Rightarrow OO'= (a+b) \quad \quad \text{and}\quad OD=(a-b)

In triangle OO'D

  (OO')^2=(OD)^2+(O' D)^2

\Rightarrow (a+b)^2=(a-b)^2+(O' D)^2\\\Rightarrow a^2+b^2+2ab-a^2-b^2+2ab=(O' D)^2\\\Rightarrow 4ab=(O' D)^2\\\Rightarrow O'D=2\sqrt{ab} \\\Rightarrow O' D=2\sqrt{ab}=AB \quad \quad [\because O' DAB\;\; \text{is a rectangle.}]

Hence, AB=2\sqrt{ab}

6 0
3 years ago
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