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Komok [63]
2 years ago
12

Guys pls help with all the steps ​

Mathematics
1 answer:
Gwar [14]2 years ago
5 0

Step-by-step explanation:

To solve both questions you will have to use the Pythagoras theorem

{c}^{2}  =  {a}^{2}  +  {b}^{2}

c being the hypotenuse

so to find AB we say

{ap}^{2}  =  {pb}^{2}  +  {ab}^{2}

To make AB the subject of the formula, we take PB over. Therefore:

{ab}^{2}  =  {ap}^{2}  -  {pb}^{2}

now we just substitute

{ab}^{2}  =  {13}^{2}  -  {5}^{2}

{ab}^{2}  = 169 - 25

{ab}^{2}  = 144

square root both sides of the equation

ab = 12

We then use the same formula to find AQ(which is a hypotenuse)

{aq}^{2}  =  {ab}^{2}  +   {bq}^{2}

{aq}^{2}  =  {12}^{2}  +  {9}^{2}

{aq}^{2}  = 144 + 81

{aq}^{2}  = 225

square root both sides

aq = 15

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Deshi has 427 marbles and Elaheh has 394 marbles Deshi wants to give 125 marbles to his little brother how many total marbles wi
hjlf

Answer: Deshi will have 302 marbles  and Elaheh will have 519.

Step-by-step explanation:

Deshi's Marbles will subtract 125.

427 - 125 = 302.

Elaheh's Marbles will add 125.

394 + 125= 519.

3 0
2 years ago
What is the equation of the line whose slope is 1/3 and y-intercept is -4?
faltersainse [42]

Answer:

y=1/3x-4

Step-by-step explanation:

the slope-intercept format of the line is y=mx+b, where m is the slope and b is the y intercept.

we are given the slope (1/3) and the y intercpet (-4).

substitute the numbers into the equation

y=1/3x-4

the answer is y=1/3x-4

hope this helps!

3 0
3 years ago
Find the coordinates of the midpoint of a segment with the given
galben [10]

Answer:

(9,5.5)

Step-by-step explanation:

6 0
3 years ago
Consider a circle whose size can vary. The circumference of the circle is always 2 π 2π times as large as its radius. Let r r re
Alenkasestr [34]

Answer: C=2\pi r

Step-by-step explanation:

Let be "C" the circumference of the circle (in feet) and "r" the radius of the circle (in feet).

Based on the information provided in the problem, you know that the circumference of the circle is always 2\pi as large as its radius.

Notice that this indicates a multiplication. Then, this means that the circumference of the circle is always equal to 2\pi by "r".

Based on this, you can write the following formula that expresses the circumference "C" in terms of the radius "r":

C=2\pi r

4 0
3 years ago
Don't get this
kap26 [50]
I'll talk you through it so you can see why it's true, and then
you can set up the 2-column proof on your own:

Look at the two pointy triangles, hanging down like moth-wings
on each side of 'OC'.

-- Their long sides are equal,  OA = OB, because both of those lines
are radii of the big circle.

-- Their short sides are equal, OC = OC, because they're both the same line.

-- The angle between their long side and short side ... the two angles up at 'O',
are equal, because OC is the bisector of the whole angle there.

-- So now you have what I think you call 'SAS' ... two sides and the included angle of one triangle equal to two sides and the included angle of another triangle.
(When I was in high school geometry, this was not called 'SAS' ... the alphabet
did not extend as far as 'S' yet, and we had to call this congruence theorem
"broken arrow".)

These triangles are not congruent the way they are now, because one is
the mirror image of the other one.  But if you folded the paper along 'OC',
or if you cut one triangle out and turn it over, it would exactly lie on top of
the other one, and they would be congruent.

So their angles at 'A' and at 'B' are also equal ... those are the angles that
you need to prove equal.
5 0
3 years ago
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