All categories

2 years ago

What is the sequre of 9?

Mathematics

2 answers:

Vesna [10]2 years ago

7 0

Answer:

Step-by-step explanation:

navik [9.2K]2 years ago

5 0

Answer:

Step-by-step explanation:

The square root of 9 is 3.

√9=3

Hope this helps :)

You might be interested in

The graph below describes the journey of a train between two cities.

Veseljchak [2.6K]

Answer:

[A] Acceleration in first 15 min = 200 km/h²

[B] Distance between two cities = 125 km

[C] Average Speed of journey = 62.5 km/hr

Step-by-step explanation:

To Solve:

Acceleration in first 15 min

Distance between two cities

Average speed of journey

Solve:

[A] Work out the acceleration, in km/h?, in the first 15 mins.

Each horizontal block is 1/8 hr = 7.5 min

Each vertical block is 10 km/hr

Time Velocity km/hr

0 Min ( 0 hr) 0

15 Min (1/4 hr) 50

45 Min (3/4 hr) 50

60 MIn ( 1 hr) 100

90 Min ( 3/2 hr) 100

120 Min ( 2hr) 0

Acceleration in first 15 min (1/4 hr) = (50 - 0)/(1/4 - 0) = 50/(1/4)

= 200 km/h²

Hence, Answer for [A] = 200 km/h²

[B] Work out the distance between the two cities. $60 Velocity (in km/h)

= (1/2)(0 + 50)(1/4 - 0) + 50 * (3/4 - 1/4) + (1/2)(50 + 100)(1 - 3/4) + 100 * (3/2 - 1) + (1/2)(100 + 0)(2 - 3/2)

= 25/4 + 25 + 75/4 + 50 + 25

= 125

Distance between two cities = 125 km

[C] Work out the average speed of the train during 20 the journey.

Average Speed of journey = 125/2 = 62.5 km/hr

[RevyBreeze]

5 0

2 years ago

a trapezoide has an area of 150 square meters. If the bases are 14 meters and 16 meters, what is the height of the trapezoid

SIZIF [17.4K]

Answer:

h = 10 m

Step-by-step explanation:

The formula for area of a trapezoid is

A = (1/2)(B + b)h where B is the bottom base, b is the top base, and h is the height.

We are given B = 16, b = 14, and A = 15, plug those values in and simplify

150 = (1/2)(16 + 14)(h)

150 = (1/2)(30)(h)

150 = (15)h (half of 30 is 15)

10 m = h (divide both sides by 15 to isolate h)

6 0

3 years ago

Using the following image, if you EG = 59, what are x, EF, and FG.

Harman [31]

Answer:

$x=6\,\,units\,,\,EF=34 \,\,units\,,\,FG=25\,\,units$

Step-by-step explanation:

Given: $EG =59 \,\,units$

To find: $x,EF,FG$

Solution:

From the image, $EG=EF+FG$

Put $EF=8x-14\,,\,FG=4x+1\,,\,EG=59$

$8x-14+4x+1=59\\12x-13=59\\12x=59+13\\\\12x=72\\x=\frac{72}{12}=6$

$EF=8x-14=8(6)-14=48-14=34\\FG=4x+1=4(6)+1=24+1=25$

Therefore,

$x=6\,\,units\,,\,EF=34 \,\,units\,,\,FG=25\,\,units$

8 0

2 years ago

Which is a factor of x^2-9x+14? A. X-9 B. X-2 C. X+5 D. X+7

sukhopar [10]

Answer : B

x^2-9x+14

Lets factor $x^2-9x+14$

We find out two factors whose product is +14 and sum is -9

Two factors are -2 and -7, we split the middle term -9x using -2 and -7

$x^2-2x-7x+14$

Group first two terms and last two terms

Then factor out GCF from each term

$(x^2-2x)(-7x+14)$

$x(x-2)-7(x-2)$

$(x-2)(x-7)$

so x-2 is one of the factor

3 0

3 years ago

Factorise completely a). 3xy - 9x b). x² - 4 c). 2x² + 5y + 1

Keith_Richards [23]

Answer:

a) 3x(y-3)

b) (x-2)(X+2)

Step-by-step explanation:

See the steps below:) You can also use the app photo math, you take a picture and it will give you the answer and explain the steps:)

8 0

2 years ago