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OLEGan [10]
3 years ago
14

1.2 divided by .3 in the model

Mathematics
2 answers:
Sonbull [250]3 years ago
8 0
1.2➗3=0.4 I think,I don’t know
Eddi Din [679]3 years ago
7 0
Well, 1.2 divided by .3 is the same thing as dividing 12 by 3. Let me give you a tip. Whenever you are dividing with decimals, you can multiply both sides by 10, or a 100, to get a whole number and make it easier to divide. So the answer for this one would be 4. YOU'RE WELCOME :D
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A triangle has an angle that measures 10°. The other two angles are in a ratio of 3:14. What
ivann1987 [24]

Step-by-step explanation:

<h3>Need to FinD :</h3>

  • We have to find the measures of other two angles of triangle.

\red{\frak{Given}} \begin{cases} & \sf{The\ measure\ of\ one\ angle\ of\ traingle\ is\ {\pmb{\sf{10^{\circ}}}}.} \\ & \sf{The\ other\ two\ angles\ are\ in\ the\ ratio\ of\ {\pmb{\sf{3\ :\ 14}}}.} \end{cases}

We know that,

  • The other two angles of triangle are in the ratio of 3 : 14. So, let us consider the other two angles of the triangle be 3x and 14x.

Angle sum property,

  • The angle sum property of triangle states that the sum of interior angles of triangle is 180°. By using this property, we'll find the other two angles of the triangle.

\rule{200}{3}

\sf \dashrightarrow {10^{\circ}\ +\ 3x\ +\ 14x\ =\ 180^{\circ}} \\ \\ \\ \sf \dashrightarrow {10^{\circ}\ +\ 17x\ =\ 180^{\circ}} \\ \\ \\ \sf \dashrightarrow {17x\ =\ 180^{\circ}\ -\ 10^{\circ}} \\ \\ \\ \sf \dashrightarrow {17x\ =\ 170^{\circ}} \\ \\ \\ \sf \dashrightarrow {x\ =\ \dfrac{\cancel{170^{\circ}}}{\cancel{17}}} \\ \\ \\ \dashrightarrow {\underbrace{\boxed{\pink{\frak{x\ =\ 10^{\circ}.}}}}_{\sf \blue {\tiny{Value\ of\ x}}}}

∴ Hence, the value of x is 10°. Now, let us find out the other two angles of the triangle.

\rule{200}{3}

Second AnglE :

  • 3x
  • 3 × 10
  • 30°

∴ Hence, the measure of the second angle of triangle is 30°. Now, let us find out the third angle of triangle.

\rule{200}{3}

Third AnglE :

  • 14x
  • 14 × 10
  • 140°

∴ Hence, the measure of the third angle of the triangle is 140°.

5 0
3 years ago
A researcher is interested in the lengths of brook trout, which are known to be approximately Normally distributed with mean 80
aliya0001 [1]

Answer:

P(X

And we can find this probability with the normal standard distirbution or excel and we got:

P(z

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable that represent the lenghts of a population, and for this case we know the distribution for X is given by:

X \sim N(80,5)  

Where \mu=80 and \sigma=5

We are interested on this probability

P(X

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(X

And we can find this probability with the normal standard distirbution or excel and we got:

P(z

6 0
3 years ago
Instructions: Find the missing length indicated.
nata0808 [166]

Answer:

x = 12

Step-by-step explanation:

By applying geometric root theorem in the given triangle,

\frac{BD}{DC}= \frac{AD}{BD}

BD^2=AD\times DC

x^{2} =16\times 9

x=\sqrt{144}

x=12

Therefore, x = 12 will be the answer.

8 0
3 years ago
Find the slope of a line parallel to each given line -2/5x + 3
masha68 [24]

9514 1404 393

Answer:

  -2/5

Step-by-step explanation:

The slopes of parallel lines are the same. The slope of the given line is -2/5, the coefficient of x.

The slope of a parallel line is -2/5.

3 0
2 years ago
Read 2 more answers
(DESPERATE PLEASE HURRY)<br> question down below<br> please show the work
zubka84 [21]

Answer:

v= -12

Step-by-step explanation:

v= -12

v = -29+17

v= -12

3 0
2 years ago
Read 2 more answers
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