Mathematics High School

I need help solving for x.​

I Need Help Solving For X.

Answers

Answer 1

Answer:

x= 9

Step-by-step explanation:

Please see the attached picture.

In △BCD

∠BDC= 180° -90° (adj. ∠s on a str. line)

∠BDC= 90°

Applying Pythagoras' Theorem,

(BD)² +(DC)²= (BC)²

(BC)²= 6² +4²

(BC)²= 52 -----(1)

In △ABD

Applying Pythagoras' Theorem,

(AD)² +(BD)²= (AB)²

(AB)²= x² +6²

(AB)²= x² +36 -----(2)

In △ABC

Applying Pythagoras' Theorem,

(AB)² +(BC)²= (AC)²

(AB)² +(BC)²= (x +4)²

Substitute (1) and (2):

x² +36 +52= (x +4)²

x² +88= x² +2(x)(4) +4² (simplify, expand)

x² +88= x² +8x +16

8x +16= 88 (-x² on both sides)

8x= 88 -16

8x= 72

x= 72 ÷8

x= 9

I Need Help Solving For X.

Related Questions

I need the answer please will mark brainliest

Answers

Answer:

Look below.

Step-by-step explanation:

For further reference I suggest looking at Khan academy videos of this.

A. log8 5/9

B. log9 4

C. log6 2^3

These are the answers I have

Rosa built a jewelry box. She first cut out all the pieces she would need by using the pattern shown below based on the pattern which phrase best describes the shape of the completed jewelry box

Answers

Answer: C

Step-by-step explanation: The sides looks longer and the  looks shorter. Imagine an cube picture and picture this image in  your head.

The measure of one base angle of an isosceles triangle is 35 degrees. What is the measure of the vertex angle?

Answers

Answer:

110 degrees

Step-by-step explanation:

The measures of the two base angles of an isosceles triangle are the same so  180 - 2(35) = 110 which is the vertex angle.

how do I resolve this?

Answers

Answer:

32

Step-by-step explanation:

20+2+4+6

pls mark brainliest

Find the product.

(-4·3·2)2

Answers

(- 4 * 3 * 2)*2 = - 48

-48
You could’ve used a calculator too :)

y is inversely proportional to the square of x

a) express y in terms of x

Answers

Answer:

y proportional to 1/x^2

aading constant = k= 1

y=k/x^2

What should be added to both sides of the equation below to complete the square?
x?
+ 6x = -8
O-4
O-2
O-9
09

Answers

Answer:

Step-by-step explanation:

x² + 6x = 8

Coefficient of the x term: 6

Divide it in half: 3

Square it: 3²

Add 3² to both sides of the equation to complete the square and keep the equation balanced:

x² + 6x + 3² = 8 + 3²

(x+3)² = 17

A rectangle has an area of 270m2.
One of the sides is 3m in length.
Work out the perimeter of the rectangle.

Answers

X * 3 = 270
Solving for x, x = 90

So one side is 90m and the other is 3m.
Now find entire perimeter 90+90+3+3=180+6=186m

Evaluate the following expression
6 - 2 x 1

Answers

6 - 2 x 1

= 6 - 2

= 4



We have to use the PEDMAS method in solving all kinds of calculation expression.

P = Parentheses (or brackets)
E = Exponents (or Index)
D = Division
M = Multiplication
A = Addition
S = Subtraction

Please help with my algebra II. sorry if writing is bad, I had to take a pic with my Chromebook so I just rewrote it with the pen feature.

Answers

Answer:

some

Step-by-step explanation:

4.) Show that sec 0 sin 0 cot 0= 1 is an identity

Answers

Answer:

1/sin(0)+sin(0)+cos0/sin0= 1

If triangle ABC is an equilateral triangle with sides of 12 ft , and points X,Y, and Z are the midpoints of each side , find the perimeter of triangle XYZ.

Answers

Answer:

 I dont know the answer so I'm gonna give it my best sorry!

Step-by-step explanation:

I think that it is 36 ft.

Necesito la versión en español plz 3

frank bought am math pencil, he used 28% percent off with a QR code, he paid 108$ how much did he save

Answers

Step-by-step explanation:

28% =28\100

28\100×108=30.24

Segments AB,DC, and EC intersect at point C. Angle DCE measures 148. Find the value

Answers

Answer:

x = 16°

Step-by-step explanation:

We can see that AB is a straight line. The sum of angles on a straight line adds up to 180°

∠ACD + ∠DCE + ∠ECD = 180° (sum of angles on a straight line)

∠ACD = x, ∠DCE = 148,  ∠ECD = x

substituting the respected values for the angles gives:

x + 148 + x = 180

2x + 148 = 180

subtracting 148 from both sides:

2x + 148 - 148 = 180 - 148

2x = 32

Dividing both sides by 2, to get x:

2x/2 = 32/2

x = 16°

Which sentence means Jack ate 2 ⁄ 4 of a pizza?

Answers

what are the sentences? but 2/4, could also be 1/2 or a half

The length of a field in feet is a function f(n) of the length n in yards. Write a function rule for this situation.


A.f(n) = 12n
B.f(n)=1/3n
C.f(n)=n/12
D.f(n) = 3n

Answers

Answer:

D.f(n) = 3n

Step-by-step explanation:

The function rule for this given situation is shown below;

Given that

The length of the field in feet would be f(n) of the length n in yards

Now as we know that

1 yard = 3 inches

So

f(n) = 3n

Hence, the option d is correct

Write a point-slope equation for the line that has slope 4 and passes through the point (11,7)

Answers

Answer:

y-7=4(x-11)

Step-by-step explanation:

y-y1=m(x-x1)

y-7=4(x-11)

yeah uh please help me if you can, this is due later today.

Answers

It is the same because nothing has changed yet it has been rearranged the sign still says x is equal of more than -1.4 just rearranged

the point A (4,-1) is reflected over the x-axis

Answers

A’ (4,1) would be the best answer.

Hope this helps! Pls choose brainliest

The diagram below.....​

Answers

Answer:

what are the rest of the answer options I need to know that before I answer it

The ratio of salamanders to frogs is 6 to 7. If there are 9 salamanders, how many frogs are there?

Answers

Answer

10

Step-by-step explanation:

salamander:frog

6:7

start by setting up the ratios as fractions and using x as the variable.

[tex]\frac{6}{7}[/tex]=[tex]\frac{9}{x}[/tex]

next cross multiply.

6x=63

x=10 i believe

16^3x+8^x+6

Could you please give me the steps as well for this problem? ​

Answers

Answer:

x = 2

Step-by-step explanation:

[tex]16^{3x} = 8^{x+6} \\2^{4(3x)} = 2^{3(x+6)} -->[/tex] (16 = [tex]2^{4}[/tex] and 8 = [tex]2^{3}[/tex] )

[tex]2^{12x} = 2^{3x+18}[/tex]

Since the base number is 2, the exponents must equal each other.

So:

12x = 3x+18

9x = 18

x = 2

What is the greatest common factor of 9 and 3?

Answers

Answer:

3

Step-by-step explanation:

3x1= 3

3x3=9

please just find the measures of the segment plzzzzzzzz

Answers

Answer:

BE=19 AD=29

Step-by-step explanation:

Sam has twice as many as books as Jim. If Sam gives 12 books to Jim, they will have the same number of books. How many books do they have altogether?

Answers

Answer:

48

Step-by-step explanation:

Sam had 36 books

Jim had 12

after same gave Jim 12 books, they each had 24 books

Please help ASAP RN

1) You make $16.00 per hour at your job at the caterpillar factory. Your boss offers you time an
pay for working on holidays. During the week the 4th of July week, you worked 4 days at your
and one day at holiday pay. Assume you worked 8 hours each day. How much will your paych
week?
a) $88.00
b) $432.00
c) $536.00
d) $704.00
e) $896.00

Answers

Answer:

D

Step-by-step explanation:

Make u the subject of the relation.
1.wx+yz=uv-2wx​

Answers

Answer:

Step-by-step explanation:

wx+yz=uv-2wx​

uv = wx + yz + 2wx

u = ( wx + yz + 2wx ) / v

hope it helps :)

Please help me and please explain the answer:)) ​

Answers

Answer:

3rd one

Step-by-step explanation:

The answer is the 3rd one. In negative numbers bigger numbers are smaller. For example, -8 is > than -10.

what is the opposite of 1/2​

Answers

Answer:

-2

Step-by-step explanation:

Answer:

-2

Step-by-step explanation:

HELP PLEASE IM BEGGING ITS SUPER SIMPLE

Answers

Y=25x is cheaper
Because: when x is for example 1 is 25 for acme solutions while it is almost 40 for clean sweep
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