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3 years ago

If 3, 4, a, 7,9 are in ascending order and the median is 6, find the value of a

Mathematics

1 answer:

IrinaK [193]3 years ago

8 0

Answer:

The value of “A” Is 6.

Step-by-step explanation:

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Tallulah needs to order some new supplies for the restaurant where she works. The restaurant needs at least 569 glasses. There a

Fynjy0 [20]

245+10ss ≤569

-245 -245

10ss ≤ 325

10ss / 10 ≤ 325/10 =

ss ≤ 32.5

4 0

3 years ago

A hiker travels at 4 miles per hour at a heading of S 35° E from a ranger station. After 3

denpristay [2]

Answer:

First, let's define our coordinates.

Let's call East as the positive x-axis and North as the positive y-axis.

Now the data that we have is:

Speed = 4 mph

Time = 3 hours.

Then the total distance traveled is:

D = 4mph*3h = 12 miles.

We also know that the angle is S 35° E.

(from east, 35° to south)

So we can write this angle as -35°.

Then if we want to know the component in South and East, we can first think this in polar coordinates

(R, θ)

where R = 12 miles, and θ = -35°

Now with this, we have that:

X = R*cos(θ) = the displacement to the east.

Y = R*sin(θ) = the displacement to the north (then -Y is the displacement to the south).

Then we have:

X = 12mi*cos(-35°) = 9.83mi

Y = 12mi*sin(-35°) = - 6.89 mi.

Then:

The displacement to the East is X = 9.83 miles

The displacement to the South is -Y = 6.89 miles.

7 0

3 years ago

Pls will brainlest for the right answer

LuckyWell [14K]

Answer:

2.8%

Explanation:

53.80/1890 = 0.028

0.028 x 100 = 2.8%

6 0

3 years ago

Which of the following best describes the relationship between (x+2) and the polynomial 3x^2-x-14

Flauer [41]

One is a linear and the other is a quadratic polynomial.
And (x+2) is indeed a factor.

You can rewrite it as (x+2)(3x-7)

8 0

3 years ago

Read 2 more answers

A thin tube closed at the top and open to the atmosphere at the bottom contains a 12 cm high column of air trapped above a 20 cm

tekilochka [14]

Answer:

The column height of air after the inversion is 7 cm.

Step-by-step explanation:

The initial pressure balance is given as

P_1+20 cm=76 cm of Hg

P_1=76-20 cm of Hg

P_1=56 cm of Hg

The initial volume of the air with cross sectional area as 12 cm2 and the length of air column as 12 is given as V_1=12 cm *1 =12 cm3

After the inversion

P_2=20 cm+76 cm of Hg

P_2=96 cm of Hg

The volume of the air after the inversion with cross sectional area as 1 cm2 and the length of air column as x is given as V_2=x *1 =x cm3

Now as temperature is constant and the cross sectional area is also constant so

$P_1V_1=P_2V_2\\56\times 12=96\times x\\x=\dfrac{56\times 12}{96}\\x=7 cm$

So the column height of air after the inversion is 7 cm.

8 0

3 years ago

Read 2 more answers

If 3, 4, a, 7,9 are in ascending order and the median is 6, find the value of a​

If 3, 4, a, 7,9 are in ascending order and the median is 6, find the value of a