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4 years ago

10a÷2a please show working out or write an explanation thankyou

1 answer:

4 0

A=5

you can divide 10a/2a because they have the same denominator (a).
because they have the same denominator you can look at it as: 10/2=5

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15. Find the length of segment DE of the triangle ABC.

ruslelena [56]

Answer:

Option C. $26\ units$

Step-by-step explanation:

we know that

Triangles ADE and ABC are similar by AA similarity postulate

AB=2AD

Apply proportion

$\frac{AD}{AB}=\frac{8x-6}{12x+4}\\ \\\frac{AD}{2AD}=\frac{8x-6}{12x+4}\\ \\\frac{1}{2}=\frac{8x-6}{12x+4}\\ \\12x+4=16x-12\\ \\16x-12x=4+12\\ \\4x=16\\ \\x=4\ units$

Find the length of segment DE

$DE=8x-6=8(4)-6=26\ units$

4 0

3 years ago

What the answer please help marking brainliest if it's correct and explain

kolezko [41]

Answer: The answer is C or Median

Step-by-step explanation:

8 0

3 years ago

Find the length of the missing side. Leave your answer in simplest radical form.

lozanna [386]

Answer:

The other side is 7.48 yards.

Step-by-step explanation:

Given that,

Hypotenuse = 15 yards

One leg = 13 yards

We need to find the length of the other leg. We can use the Pythagoras theorem to find it such that,

$H^2=b^2+h^2$

Where

h is other leg

Put all the values,

$h=\sqrt{H^2-b^2} \\\\h=\sqrt{(15)^2-(13)^2} \\\\h=7.48\ yd$

So, the other side is 7.48 yards.

6 0

3 years ago

An alpine area of a national park near a trail is normally covered by plants, but much of the area is now bare soil. Park ranger

Ira Lisetskai [31]

Answer:

The correct option is;

comparing plant survivorship in areas where hikers stay on the trail with plants where hikers leave the trail

Step-by-step explanation:

The hypothesis that the area formerly covered by known plants which is now bare soil due to trampling in the alpine areas by hikers can be tested by means of comparing the areas where during the cause of their visit, the hikers remain on the trail as they move within the park to other portion of the park where it is known that there are either very few or no hiker remain on the trail. The outcome will determine if the cause of the appearance of bare soil is due to the transit and trampling by hikers.

8 0

3 years ago

Geometry i need help with this

stira [4]

Answer:

Step-by-step explanation:

Hey There!

So the first thing we want to do is find out what an outlier is

An outlier are points that are distanced from the cluster of points and in this scatterplot there seems to be an outlier ( the point on the bottom right)

so the answer is c

<em>The1AndOnlyMarkus</em>

5 0

3 years ago