pythag test. question in screenshot

Pythag Test. Question In Screenshot

Answers

Answer 1
14^2-9^2=x^2
196-81=x^2
115=x^2
x=10.7238

25^2-10.7238^2=(j+9)^2
625-115=(j+9)^2
510=(j+9)^2
510=j^2+9^2
510-9^2=j^2
510-81=j^2


j=13.6

Related Questions

Kevin made 4 identical necklaces each having beads and a pendant. The total cost of the beads and pendants for all 4 necklaces was $23.60. If the beads cost a total of 9.20 how much did each pendant cost

Answers

Answer:
$3.6
Step-by-step explanation:
total cost for all beads and pendant is $23.60
cost for the beads is $9.20
cost for the pendants is 23.60- 9.20 = $14.4
cost for each pendant = 14.4/4 = $3.6

please answer correctly thanks ​

Answers

Answer:

Step-by-step explanation:

add all the three.

Answer:

60

Step-by-step explanation:

AD= AB+BC+CD

=22+29+9

=60 cm

Think about each of the following. Which of these three triangles is impossible to draw?

Answers

Check by using sum of angles of triangle = 180°

20+45 < 180 so third angle will make it 180 which means it's possible to draw 120+50 = 170< 180 so third angle being 10 will complete the triangle90+100 = 190 > 180 so third angle being (-10) is impossible for the triangle so it can't be possible

I NEED HELP IMMEDIATLY! 100 POINTS AND BRAINLY!!!!!!!

Solve for ccc.
Give an exact answer.
0.2(10-5c)=5c-160.2(10−5c)=5c−160, point, 2, left parenthesis, 10, minus, 5, c, right parenthesis, equals, 5, c, minus, 16
c =c=c, equals

Answers

C = 2.7

First, simplify both sides of the equation.

0.2(1 − 5c) = 5c − 16

(0.2)(1) + (0.2)(−5c)= 5c + −16

0.2 + −c = 5c + −16

−c + 0.2 = 5c − 16

Now subtract 5c from both sides of the equation, then subtract 0.2 from both sides.

−c + 0.2 − 5c = 5c − 16 − 5c

−6c + 0.2 = −16

−6c + 0.2 −0.2 = −16 - 0.2

−6c = −16.2

Lastly, divide both sides by -6.

-6c/-6 = -16.2/6

2.7

Please mark this as brainliest, cheers.

Factor z3 + 2z2 - 9z - 18. (z - 3)(z + 3)(z + 2) (z 2 + 9)(z - 2) (z 2 + 2)(z - 9)

Answers

Answer:

Read the explanation

Step-by-step explanation:

look at the photo

can someone pls help me with this. WILL MARK BRAINLIEST

Answers

Answer:

The answer is D :)

Step-by-step explanation:

I think this because when you multiply the unit value of PR, 4, by 3 it equals 12, which is TVs, value. If you do the same to QP's unit value, 3, by 3 again, you will get UT's unit value, 9.

Have an amazing day!!

Please rate an dmark brainliest!!

The answer is B or D.

How do you know what units to use for Tamara to feed her cats

Answers

The units use for Tamara's cats is an illustration of metric units

Tamara's unit of feeding her cats is cups

How to determine the unit of measurement?

From the complete question, the amount of feed Tamara gives her cat to be:

Amount = 1/8 cups

This means that the unit of feed Tamara used is cups

Hence, Tamara's unit of feeding her cats is cups

Read more about metric units at:

https://brainly.com/question/2555957

Select the equation for a graph that is the set of all points in the plane that are equidistant from the point F(0, −8) and line y = 8.

Answers

Answer:

-1/32 × x

Step-by-step explanation:

let's define and identify the correct markers of the correct parabola.

so, we have the focus point F (0, -8).

we have the directrix y = 8.

that means the the vertex point (the middle between the focus and the directrix) is (0, 0).

a parabola is turning away from the directrix. the vertex here is below the directrix, so the parabola is opening downwards and has therefore a negative factor of x.

so, we can rule out the 2 positive answer options.

to decide between the other 2, let's use a value of x and see, if the point is equidistant to the focus and the directrix.

e.g. x = 1

so,

y = -1/8 × x²

gives us y = -1/8 for x = 1

that means the point is (1, -1/8).

the distance to the focus (0, -8) is

(1 - 0)² + (-1/8 - - 8)² = 1 + (7 7/8)² = 1 + (63/8)² =

= 64/64 + 3969/64 = 4033/64

the distance to the directrix is the distance to the point (1, 8) as the point on the directrix must have the same x value.

so, the distance (1, -1/8) to (1, 8) is

(1 - 1)² + (-1/8 - 8)² = 0 + (-65/8)² = 4225/64

that is not equal to the distance to the focus.

so, let's try

y = -1/32 × x

the point for x = 1 is (1, -1/32)

distance to focus

(1, -1/32) to (0, -8) = (1-0)² + (-1/32 - -8)² = 1 + (255/32)² =

= 1024/1024 + 65025/1024 = 66049/1024

distance to directrix

(1, -1/32) to (1, 8) = (1-1)² + (-257/32)² = 66049/1024

which is the same distance as to the focus.

so, y = -1/32 × x is the right answer.

FYI - for an actual distance I would have to create the square roots of the numbers used here.

but since we only needed to see, if distances are equal or not, it was sufficient to check if the squares of the distances are equal or not.

Write the next whole number after 4444 in the base-five system.

Answers

Answer:   10000 in base 5

====================================================

Explanation:

4+1 = 5 in base 10

But in base 5, the digit "5" does not exist.

The only digits in base five are: 0, 1, 2, 3, 4

This is similar to how in base ten, the digits span from 0 to 9 with the digit "10" not being a thing (rather it's the combination of the digits "1" and "0" put together).

----------------

Anyways let's go back to base 5.

Instead of writing 4+1 = 5, we'd write 4+1 = 10 in base 5. The first digit rolls back to a 0 and we involve a second digit of 1.

Think how 9+1 = 10 in base 10.

Similarly,

44+1 = 100 in base 5

444+1 = 1000 in base 5

4444+1 = 10000 in base 5

and so on.

----------------

Here are the first few numbers in base 5, when counting up by 1 each time.

0, 1, 2, 3, 4,

10, 11, 12, 13, 14,

20, 21, 22, 23, 24,

30, 31, 32, 33, 34,

40, 41, 42, 43, 44,

100, 101, 102, 103, ...

Notice each new row is when the pattern changes from what someone would expect in base 10. This is solely because the digit "5" isn't available in base 5.

Jose explained to his friend, Emily, that when you multiply matrix A by matrix B, you get the same result as if you multiplied matrix B by matrix A. Is he correct? Explain why or why not for full credit

Answers

Answer:

yes he is

Step-by-step explanation:

he is correct because say if I multiplied 25 by 10 I would get 250 same would go for if I multiplied 10 by 25 I still would get 250.

I hope this helps

Write the equation of a parabola with focus at (1,-4) and a directrix at X=2

Answers

Answer:

The equation of a parabola is

[tex]x = \frac{1}{4(f - h)} (y - k) ^{2} + h[/tex]

Step-by-step explanation:

(h,k) is the vertex and (f,k) is the focus.

Thus, f = 1, k = −4.

The distance from the focus to the vertex is equal to the distance from the vertex to the directrix: f - h = h - 2.

Solving the system, we get h = 3/2, k = -4, f = 1.

The standard form is:

[tex]x = - \frac{y ^{2} }{2} - 4y - \frac{13}{2} [/tex]

The general form is:

[tex]2x + {y}^{2} + 8y + 13 = 0[/tex]

The vertex form is:

[tex]x = - \frac{(y + 4) ^{2} }{2} + \frac{3}{2} [/tex]

The axis of symmetry is the line perpendicular to the directrix that passes through the vertex and the focus: y = -4.

The focal length is the distance between the focus and the vertex: 1/2.

The focal parameter is the distance between the focus and the directrix: 1.

The latus rectum is parallel to the directrix and passes through the focus: x = 1.

The length of the latus rectum is four times the distance between the vertex and the focus: 2.

The eccentricity of a parabola is always 1.

The x-intercepts can be found by setting y = 0 in the equation and solving for x.

x-intercept:

[tex]( - \frac{13}{2} \: ,0)[/tex]

The y-intercepts can be found by setting x = 0 in the equation and solving for y.

y-intercepts:

[tex](0, - 4 - \sqrt{3)} [/tex]

[tex](0, - 4 + \sqrt{3)} [/tex]

Brook's score in a card game is 713 + 102 + 516. On her next turn, she draws one of the cards shown. Now her score is (713 + 102 + 516) ÷ 2. Which card did Brook draw? Explain.​

Answers

I dont know if its not supposed to be in a different form but i got 665.5 :)

Solve for X and Y
1. y = 2x
6x + 3y = 12

2. y = -4x + 2
y = 6x - 8

3. y = x - 4
-4x - 6y = -16

4. x = 3y + 1
2x + 4y = 12

Answers

Answer:

What do you mean?

Step-by-step explanation:

How do you write 7,100 in scientific notation

Answers

Answer:

7.1 x 10³

Step-by-step explanation:

Move your decimal so that it follows your first whole number greater than zero. The number of places you moved the decimal is the same as the exponent. Since the number 7.1 needs to INCREASE to be 7,100, then the exponent is positive.

Answer:

7.1 x 10[tex]^{3}[/tex] (note the 3 is an exponent)

Step-by-step explanation:

1. Count how many places there are to the right of 7

2. There are 3

3. Apply the formula of scientific notation a x 10[tex]^{b}[/tex]

4. 7.1 x 10[tex]^{3}[/tex]  (remove all digits after 7.1  

Hope this helps :)

What is 3 x 1/10 pls answer

Answers

Answer:

3/10 or 0.3

Step-by-step explanation:

3 times 1 and you'll get 3 over 10, or in decimal it will be 0.3

-5X^2 + 3X = -3X^2 + 3X - 50  solve for x ​

Answers

[tex]-5x^2+3x = -3x^2 +3x -50\\\\\implies 5x^2-3x^2 +3x-3x -50 =0\\\\\implies 2x^2 -50 =0\\\\\implies x^2 -25 = 0\\\\\implies x^2 = 25\\\\\implies x = \pm5\\\\\text{Hence}~ x = 5~ \text{or}~ x = -5[/tex]

Answer:

X = 5, —5

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

can you please help me​

Answers

Answer:

168

Step-by-step explanation:

yea..

HELP PLEASE SHOW WORK

A triangle has one angle that measures 40 degrees, one angle that measures 119 degrees, and one angle that measures 21 degrees.

What kind of triangle is it?
A.
acute triangle
B.
equilateral triangle
C.
obtuse triangle
D.
right triangle

Answers

Answer:

obtuse triangle

Step-by-step explanation:

one angle measures more than 90°

Answer: obtuse triangle


Step-by-step explanation: an acute triangle is a triangle that has angles less than 90 degrees, a right triangle is a triangle that has an angle that is 90 degrees, and an equilateral triangle is a triangle that's sides are all the same degrees, we know those all cancel out so the answer has got to be obtuse triangle


The sale price of an item is $105 after a 30% discount is applied. What is the original price of the item?

SHOW WORK PLEASE AND THANKYOU
and be quick please

Answers

Answer:

$150

Step-by-step explanation:

let x be the original price

105 = 0.7x

150 = x

a cyclist travels 108m in 12 seconds.what is her speed in km/h

Answers

Step-by-step explanation:

=108÷12

=9m/s

=9x0.001x1/3600

=2.5x10^6km/h

PLEASE HELP ASAP, BEST ANSWER GETS +50 POINTS AND BRAINLIEST

prove that if the center of a circle is equidistant from the sides of an inscribed triangle, then the triangle is equilateral?

Please answer with a picture/drawing/diagram, and statement and reasons for Brainliest! Thanks!

Answers

Answer:

if your using a 60,60,60 triangle ; the centers are the same.

The triangle's equilateral.

hope it helps!!!

Step-by-step explanation:

See attached

Hope this helps! :D

Find the area of the shaded polygons

NEED ASAP PLEASE!! THANK YOU

Answers

Answer:

168

Step-by-step explanation:

area of a trapezoid is

((a+b)/2)*h

((8+16)/2)*14

12*14 =

168

How to solve [tex]\frac{dy}{dx} =2|x|[/tex] ?

Answers

dy= 2|x|dx

integral dy= integral 2|x|dx

y= X² + c

if an item regularly cost d dollars and is discounted 12 percent, which of the following represents the discounted price?

Answers

If an item usually costs d dollars a 12% discount can be represented as 0.88d.

What is a discount?

This refers to a deduction in the regular price of a product or service that is usually represented using a percentage.

How can the discounted price be represented?

Considering 12% is being deducted from 100% (100-12 = 88). The final price can be represented as 0.88d or 0.88 multiplied by the regular price (d).

For example, if the regular price is $100, 0.88 x 100 = $88.

Learn more about discount in: https://brainly.com/question/3541148

The GCF of a pair of numbers is 4 and the LCM is 2240. If one the numbers is 64, then what is the other number?

Answers

Hope it helps…..best of luckkkkk

PLSS HELP ME

12/12 + 12/12 + 7/12=_____

Answers

2 7/12

This is because 12/12 is equal to 1/1 or 1. So 12/12 + 12/12 = 2.

2 + 7/12= 2 7/12

Answer:

31

-----

12

Step-by-step explanation:

12         12           7         31

----  +  -------  +  -----  =  -------

12         12          12         12

Add the numerators together (top number) and keep the denominator the same (bottom number)

I hope this helps!

observa la sucesion que llevan las figuras realiza las figuras que faltan ​

Answers

Answer:

13, 16, 19, 22, 25, etc.

Step-by-step explanation:

You're pretty much just adding three for the chart. And for the diagram, you're adding two.

Diego rides his bicycle at a constant rate of 0.3 kilometers per minute. Which graph best represents y, the total number of kilometers Diego rides his bicycle in x minutes?

Answers

y(x)=0.3x

since he travels 0.3 kilometers for each minute (x)

then y as a function of x is 0.3×the number of minutes(x)

Help picture below problem 14

Answers

The Pythagorean theorem is the idea that the sum of the two legs which are both squared is equal to the hypotenuse's length squared.

     *look at the image I attached for a better explanation

By looking at the picture, we are missing the leg's length, and by using the Pythagorean theorem, we get the equation

    [tex]?^2+6^2 = 10^2\\?^2 + 36 = 100\\?^2 = 64\\? = 8[/tex]

Thus the missing side length is 8 cm

Hope that helps!

tickets originally worth p dollars were discounted by 28%. which expression represents the discounted price of the tickets?

Answers

Answer:

.72p

Step-by-step explanation:

1p equals the original price

100 percent of p

we are reducing it by 28 percent, which means only 72 percent of p will remain

72 percent or .72

.72p

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