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ANEK [815]
3 years ago
8

Solve −3x2 + 30x − 90 = 0. x equals 5 plus or minus 2i square root of 5 x equals 5 plus or minus i square root of 5 x equals 10

plus or minus 2i square root of 5 x equals 10 plus or minus i square root of 5
Mathematics
2 answers:
Tcecarenko [31]3 years ago
5 0
The x in your equation is 16/5 or 3 1/5 or 3.2 if you want it simplified 
aliina [53]3 years ago
5 0

Answer:

x = 5 +/-<em> i</em> √5

(took the test just now)

Hope this helps !

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exis [7]

Answer:

x ≈ 20.31

Step-by-step explanation:

By applying tangent rule in the given right triangle,

tan(55°) = \frac{\text{Opposite side}}{\text{Adjacent side}}

Measure of the opposite side = 29 units

Measure of the adjacent side = x

Substitute these values in the expression,

tan(55) = \frac{29}{x}

x = \frac{29}{tan(55)}

x = 20.306

x ≈ 20.31

5 0
3 years ago
F(x) =2x^2+4x+5<br> Find: f(a)
MA_775_DIABLO [31]

Answer:

F(a) =2a^2+4a+5

Step-by-step explanation:

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3 years ago
Find an equation of the line parallel to y=2x+3 and that passes through the point (5,3)
timama [110]

Answer:

y = 2x - 7

Step-by-step explanation:

The equation of a line in slope- intercept form is

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with slope m = 2

Parallel lines have equal slopes , then

y = 2x + c ← is the partial equation

To find c substitute (5, 3 ) into the partial equation

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5 0
2 years ago
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A man walks at 60km/ hr. How long does he walks between 9:30 am and 12 noon​
N76 [4]

Answer:

He walks 150 km in 2.5 hours.

Step-by-step explanation:

From 9:30 a.m. to noon, it's 2.5 hours.

distance = speed * time

distance = 60 km/h * 2.5 h

distance = 150 km

Answer: He walks 150 km in 2.5 hours.

3 0
3 years ago
Which route must use all of the vertices of a vertex-edge graph? (Check all that apply.)
zlopas [31]

An Euler path, in a graph or multi graph, is a walk through the graph which uses every edge exactly once. An Euler circuit is an Euler path which starts and stops at the same vertex. Our goal is to find a quick way to check whether a graph (or multi graph) has an Euler path or circuit.


                                   


                                                 hope it helps

4 0
3 years ago
Read 2 more answers
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