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VLD [36.1K]
3 years ago
9

4x-4/5=2/5 solve the equation

Mathematics
2 answers:
cestrela7 [59]3 years ago
5 0

Answer:

x=\frac{3}{10}

Step-by-step explanation:

4x-\frac{4}{5} =\frac{2}{5}

4x=\frac{2}{5}+\frac{4}{5}

4x=\frac{2+4}{5}

4x=\frac{6}{5}

x=\frac{6}{5*4}

x=\frac{6}{20}

x=\frac{3}{10}

cestrela7 [59]3 years ago
4 0

Answer:

x=0.3

Step-by-step explanation:

4x-4/5=2/5

4x=4/5+2/5=6/5

x=6/20=3/10=0.3

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A spherical balloon has a circumference of 23 cm. What is the approximate surface area of the balloon to the nearest square cent
Bad White [126]
168cm2
Let r cm be the radius of the balloon, then 
<span>2pi(r)=23=>r=23/(2pi) </span>
<span>The surface area= </span>
<span>4pi(r^2)= </span>
<span>4pi[23/2pi)]^2= </span>
<span>(23^2)/pi=168.386 cm^2 </span>
<span>approximately.</span>
7 0
4 years ago
The quadratic function f(x) has a turning point at (-3,6). the quadratic y=2/3f(x)+3 would have a turning point of
NARA [144]

Answer:

C. (-3,11)

Step-by-step explanation:

Tp is (-3,6) implies the quadratic could have been

f(x) = (x+3)²+6

(2/3)f(x) = (2/3)[(x+3)²+6]

= (2/3)(x+3)²+4

(2/3)f(x)+3 = (2/3)(x+3)²+4+3

= (2/3)(x+3)²+7

Tp at (-3,7)

Alternately,

No change in domain so x remains-3

(2/3)f(x) changes y from 6 to 4 (6×2/3)

+3 increases the y by 3

i.e 4+3 = 7

So, (-3,7)

4 0
3 years ago
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PolarNik [594]
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5 0
3 years ago
Read 2 more answers
Find an equation of the line perpendicular to the graph of 14x - 7=4 that passes through the point at (2,9)
Sauron [17]

Answer:

go right 2 and then go up 9 and mark the point

Step-by-step explanation:


3 0
3 years ago
Any help would be appreciated
vodomira [7]

Answer:

Total area to be painted in gold = 24000 cm²

Step-by-step explanation:

Total height of the stairs = 120 cm

Total standing stairs = 4

Therefore, height or width of one standing stair as shown in the picture,

= \frac{120}{4}

= 30 cm

Length of every stair has = 100 cm

Every horizontal and vertical stair has the same area.

Area of one stair = Length × Width

                            = 100 × 30

                            = 3000 cm square

There are 4 horizontal and 4 vertical similar stairs to be painted in gold.

Total area to be painted in gold = 8 × Area of one stair

                                                     = 8 × (3000)

                                                     = 24000 cm²

Total area to be painted in gold = 24000 cm²

6 0
3 years ago
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