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serg [7]
4 years ago
6

Evaluate -4 - 5 + 4 + (-5)

Mathematics
2 answers:
Alja [10]4 years ago
4 0

Answer:

-10

Step-by-step explanation:

r-ruslan [8.4K]4 years ago
3 0

Answer:

-10

Step-by-step explanation:

it just works

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Solve 5(8x-1)-x=2x+32 . solve step by step and explain each step please!!!!
alina1380 [7]

First, distribute the 5 into the 8x-1 (5 times 8x, 5 times -1)

40x - 5 - x = 2x + 32

Subtract the x

39x - 5 = 2x + 32

Switch the sides for -5 (it will become positive and add to the 32)

39x = 2x + 37

Switch sides for the 2x (it will become negative and subtract from the 39x)

37x = 37

Divide both sides by 37

x = 1

8 0
4 years ago
Triangle MNO is an equilateral triangle with sides measuring 16 StartRoot 3 EndRoot units. Triangle M N O is an equilateral tria
Lesechka [4]

Answer:

The correct option is second one i.e 24 units.

Therefore the height of the triangle is

NR=24\ units

Step-by-step explanation:

Given:

An equilateral triangle has all sides equal.

ΔMNO is an Equilateral Triangle with sides measuring,

NM = MO = ON =16\sqrt{3}

NR is perpendicular bisector to MO such that

MR=RO=\dfrac{MO}{2}=\dfrac{16\sqrt{3}}{2}=8\sqrt{3} .NR ⊥ Bisector.

To Find:

Height of the triangle = NR = ?

Solution :

Now we have a right angled triangle NRM at ∠R =90°,

So by applying Pythagoras theorem we get

(\textrm{Hypotenuse})^{2} = (\textrm{Shorter leg})^{2}+(\textrm{Longer leg})^{2}

Substituting the values we get

(MN)^{2} = (MR)^{2}+(NR)^{2}\\\\(16\sqrt{3})^{2}=(8\sqrt{3})^{2}+(NR)^{2}\\\\(NR)^{2}=768-192=576\\Square\ rooting\ we\ get\\NR=\sqrt{576}=24\ units

Therefore the height of the triangle is

NR=24\ units

6 0
3 years ago
Read 2 more answers
The length of a rectangle is 15 ft and its width is 10 ft.
Tema [17]
So if you multiply 15 and 10 by .2 or (1/5) you would get 3 and 2 then find the area which would be 6  then 6/150  to get what its multiplied by so the area of the new rectangle would be multiplied by .04
6 0
4 years ago
Which expression can be used to find the surface area of the following rectangular prism?
sergeinik [125]

Answer:

It would be C.

Step-by-step explanation:

4 0
4 years ago
Find a polynomial of degree 3 with zeros of 4, 2i and -2i
andre [41]
(x-4)(x-2i)(x+2i)=\\
(x-4)(x^2+4)=\\
x^3+4x-4x^2-16=\\
x^3-4x^2+4x-16
7 0
3 years ago
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