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Margaret [11]
3 years ago
14

I need help desperately

Mathematics
1 answer:
deff fn [24]3 years ago
3 0

See attachment for math work and answer.

You might be interested in
Which expression is equivalent to −30+(−40)+(−70) ?
BlackZzzverrR [31]

Answer:

-30 - 40 - 70, see below

Step-by-step explanation:

+- combines to -

++ combines to +

-+ combines to -

-- combines to +

-30 + (-40) + (-70)

-30 - 40 - 70

:)

5 0
3 years ago
Read 2 more answers
Solve the following equation algebraically:
Montano1993 [528]
For this case we have the following equation:
 -16 = 16x ^ 2
 Clearing x we have:
 -16 / 16 = x ^ 2
 x ^ 2 = -1
 x = +/- root (-1)
 Rewriting:
 x = +/- i
 Therefore, the solutions are:
 x1 = i
 x2 = -i
 Answer:
 
this equation has two solutions:
 
x1 = i
 
x2 = -i
7 0
3 years ago
Read 2 more answers
Jean adds 35 and 9. How can she solve using only equations to model her thinking?
mina [271]
Since she only has a two digit number and a one digit number she will be able to create one or two equations. 
 
35+9=44
Or she may want to break up the two digit number into two or more parts, for example:  (5×6) + (1×5) + 9 = 44  or  (7×5) + 9 = 44


7 0
3 years ago
Question 44 Unsaved
Alex_Xolod [135]

Coterminal angles are angles in standard position (angles with the initial side on the positive x -axis) that have a common terminal side.

<h3>Answer: 89°</h3>

5 0
4 years ago
Read 2 more answers
Solve for a<img src="https://tex.z-dn.net/?f=S%20%3D%20%5Cfrac%7Bn%7D%7B2%7D%20%28a%2Bl%29" id="TexFormula1" title="S = \frac{n}
slavikrds [6]

Answer:

The answer is

\frac{2s}{n}  - l = a

Step-by-step explanation:

s =  \frac{n}{2} (a + l)

multiply both sides by 2 to get

2s = n(a + l)

divide both sides by n to get

\frac{2s}{n}  = a + l

subtract L from both sides to get the answer

\frac{2s}{n}  - l = a

6 0
3 years ago
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