All categories

3 years ago

Solve for x: z=m-x *

Mathematics

1 answer:

astraxan [27]3 years ago

8 0

Answer:

x = m - z

Step-by-step explanation:

z = m - x

Add x to both sides.

x + z = m

Subtract z from both sides.

x = m - z

You might be interested in

How many millimeters are in 1 meter

melisa1 [442]

The answer is 1000 millimeters in one meter

3 0

3 years ago

8x-11y=-4<br> -5x+y=26<br><br>(need help with showing work , I keep getting stuck on something)

GREYUIT [131]

Step-by-step explanation:

Possible question so that I can help you with the solution

7 0

3 years ago

HELP PLEASE:

Anon25 [30]

Answer: Mean of the sample proportion = 74.4

Standard deviation of the samnple proportion is 5.32.

Step-by-step explanation:

Given : A random sample of 120 is taken from a population of 10000.

Let n = 120

Also, from previous survey, it is believed that 62% of the population has an Instagram account.

i.e, population proportion : p = 0.62

Now , the mean of the sample proportin would be :

$\text{Mean}=\mu_{\hat{p}}=np\\\\=120\times0.62=74.4$

i.e. Mean of the sample proportion = 74.4

The standard deviation of the samnple proportion would be :

$\text{standard deviation}=\sigma_{\hat{p}}=\sqrt{np(1-p)}\\\\=\sqrt{120(0.62)(1-0.62)}\\\\=\sqrt{28.272}\\\\=5.31714208951\approx5.32$

Thus , the standard deviation of the samnple proportion is 5.32.

8 0

3 years ago

A train travels 24 miles in 30 minutes. Calculate it's speed in mph

Ivahew [28]

48 miles per hour! Just double 30 minutes to get an hour, and double 24 as well which equals 48.

4 0

3 years ago

Read 2 more answers

In the figure if angleACB = angleCDA, AC = 8 cm and AD= 3 cm, then BD is<br>

tatiyna

Answer:

AC = 8 cm,

AD = 3 cm and ∠ACB = ∠CDA

From figure,

∠CDA = 90°

∴ ∠ACB = ∠CDA = 90°

In right angled ∆ADC,

AC2 = AD2 + CD2

⇒ (8)2 = (3)2 + (CD)2

CD2 = 64 – 9 = 55

⇒ CD = √55 cm

In ∆CDB and ADC.

∠BDC = ∠AD [each 90°]

∠DBC = ∠DCA [each equal to 90°-∠A]

∴ ∠CDB ∼ ∆ADC

Then,

6 0

3 years ago