Mathematics High School

marking brainliest :0 !!

find the value of x

Marking Brainliest :0 !!find The Value Of X

Answers

Answer 1

Answer:

           x = √70

Step-by-step explanation:

From ΔABD:

                   BD² + 7² = x²   ⇒  BD² = x² - 49

Form ΔBCD:

                   BD² + 3² = BC²   ⇒  BD² = BC² - 9

so:

       BC² - 9 = x² - 49   ⇒  BC² = x² - 40

From ΔABC:

                 x² + BC² = (7+3)²

                  x² + x² - 40 = 10²

                   2x² = 140

                    x² = 70

                    x = √70                    

Answer 2

Answer:

x = [tex]\sqrt{70}[/tex]

Step-by-step explanation:

Δ ABC and Δ ADB are similar, thus ratios of corresponding sides are equal, that is

[tex]\frac{AB}{AD}[/tex] = [tex]\frac{AC}{AB}[/tex] ( cross- multiply )

AB² = AC × AD = 10 × 7 = 70 ( take the square root of both sides )

AB = x = [tex]\sqrt{70}[/tex]

Related Questions

Question 18 of 25
What is the slope of the line graphed below?
(3,5)
(0-1)
ma
O A. -2
B. 2
O c. - 13
OD.
PREVIOUS

Answers

Answer:

2

Step-by-step explanation:

increment in x: from 0 to 3 = 3

increment in y: from -1 to 5 = 6

slope = increment in y / increment in x = 2

it's positive because for increasing x, y is also increasing

Solve multi step equations
a-2+3 = -2.

Answers

Answer:

The answer is a= -3

Step-by-step explanation:

hope this helps

Answer:

a= -3

Step-by-step explanation:

Add 2 to both sides

a-2+3+2 = -2+2

Simplify

a + 3 = 0

Subtract 3 from both sides

a+3-3 = 0-3

Simplify

a = -3

Sara charges $10 an hour to babysit one child. Each additional child is an extra $2. How much will Sara charge to babysit three children for five hours?

Answers

Answer:

70

Step-by-step explanation:

Use the table to write the ratio of peppers to carrots,
Number on Plate
Type of Vegetable
Carrots
Peas
16
25
Peppers
Green beans
31
25:3
753
3 to 25
25 to 75

Answers

Answer:25:3

Step-by-step explanation:

Peppers have 25

Carrots have 3

Peppers to Carrots is 25:3

A jet flies 405 miles in 5 hours. At this rate. how far could the jet fly in 15 hours? PLS

Answers

Answer: 1215 miles

Step-by-step explanation:

405 miles in 5 hours is 81 mph so you multiply that mph by the amount of hours you want (15)  so 81 x 15 = 1215

-4x = 48 help plsssssssssss

Answers

Answer:

The answer is x= -12

Step-by-step explanation:

hope this helps

To find the x divide both side by -4

-4x = 48

-4x/-4=48/-4

x=-12

x=-12
This is a simple Equation so you have to divide both sides by Negative four so that (x) is by itself

Danny solved the inequality - 8x > 56 and got x>-7. Is this correct and if not, what mistake did Danny
make. Select your decision and reason from the box below.
Is Danny correct? →
YES
OR
NO
56 divided by -8 is not-7
If no, what mistake did Danny make? →
Danny did not reverse the symbol
It should be 7 not-7

Answers

Answer:

Danny did not reverse the symbol.

Hence, the correct answer is: [tex]x<-7[/tex]

Step-by-step explanation:

Given the inequality

[tex]- 8x > 56[/tex]

We know that when we multiply both sides by -1, the 'inequality' gets reverse.

i.e.

[tex]\left(-8x\right)\left(-1\right)<56\left(-1\right)[/tex]

[tex]8x<-56[/tex]

Divide both sides by 8

[tex]\frac{8x}{8}<\frac{-56}{8}[/tex]

[tex]x<-7[/tex]

Therefore, Danny did not reverse the symbol.

Hence, the correct answer is: [tex]x<-7[/tex]

Mrs. Sampson's bill at a restaurant was $44.00. How much money should Mrs. Sampson tip if she wishes to tip 15%?​

Answers

He should tip 6.60 cents

Answer: $6.60

explanation: set up a proportion: x/44 = 15/100.

cross multiply: 44x100=660. 660/100=6.6

Pls Help!!






Round to the accuracy of the underlined digit.


49,332


3,655


97,722


59,899


32,420


20,151

Answers

Answer:

heekiiitytyty

Step-by-step explanation:

d

What is the most efficient first step to isolate the variable term on one side of this equation?
-9x=-4x+5
a) Subtract 5 from both sides.
b) Add 5 to both sides.
c) Subtract 9x from both sides.
d) Add 4x to both sides

Answers

d is the correct answer
Answer:
D. add 4x to both sides


Explanation:
-9x = -4x + 5
+ 4x + 4x
-5x = 5

-4x and -4x are opposite terms, so they cancel each other out.
Once you add 4x to both sides, the variable term (-5x) is isolated on one side of the equation.

Find the slope of the ordered pair. M(3,8) N(5,14)

Answers

Answer:

3

Step-by-step explanation:

Slope formula, change if y over change of x

14 - 8 = 6

5 - 3 = 2

6/2 = 3

Use the rules of exponents to evaluate or simplify. Write without negative exponents.
[tex]3. {4}^{0} [/tex]
​

Answers

9514 1404 393

Answer:

  1

Step-by-step explanation:

Any non-zero number to the zero power is 1.

  3.4^0 = 1

Given:18x-2(3x+1)=5x-16
Prove:x=-2

(Include statements and reasons)

Answers

Answer:

Step-by-step explanation:18x−2(3x+1)=5x−16

18x+(−2)(3x)+(−2)(1)=5x+−16

18x+−6x+−2=5x+−16

(18x+−6x)+(−2)=5x−16

12x+−2=5x−16

12x−2=5x−16

Step 2: Subtract 5x from both sides.

12x−2−5x=5x−16−5x

7x−2=−16

Step 3: Add 2 to both sides.

7x−2+2=−16+2

7x=−14

Step 4: Divide both sides by 7.

7x

7

=

−14

7

x=−2

Answer:

x=−2

(6 ten thousands 3 hundreds) × 10 =

Answers

Answer:

630000

Step-by-step explanation:

We obtain 603000 when we multiply (6 tens of thousands three hundreds) by 10.

What is meant by standard form?A number is ranked or assigned to the place "ones tens hundreds thousands" when it comes to huge or tiny numbers. The position of numbers is referred to by the place value of a number, which indicates the position of a specific digit in a number that can be ones, tens, hundreds, or thousands.Each digit in a number has a distinct position and value. A number may have multiple digits. Starting from the right, the first digit will be in the ones place, the second in the tens place, and the third in the hundreds place.

Given,

(6 ten thousands three hundreds) × 10

Simplifying the above equation, then we get

= 603000.

Tens of thousands could be used to refer to a bigger sum (typically between 10,000 and 99,999).

To learn more about standard form, refer to:

https://brainly.com/question/24618757

#SPJ2

HELP ME WITH THIS QUESTION PLEASE!!!!!!!!!!!!

Answers

50 maybe

Step-by-step explanation:

because 200 lollipops 4 in each bag

And 150 pencils 3 in each bag

(i dont think this is right)

A circle has a diameter with endpoints A (-4,4) and B (2,-3) . Which coordinates represent the center of the circle?

Answers

Answer:

The coordinates of the center of the circle is (-1,-0.5)

Step-by-step explanation:

The coordinates of the center are only the midpoint coordinates of the endpoint

Mathematically, that will be;

(x,y) = (x1 + x2)/2, (y1 + y2)/2

= (-4+2)/2, (4-3)/2

= (-2/2),(-1/2)

= (-1, -0.5)

Nicole recorded the balance of her loan, y, over a period of several months, x, in the table. Which scatter plot shows Х у 0 $3,000 1 $2,883 2 $2,765 3 $2,647 4 $2,528 h 5 $2,408 6 $2,288 7 $2,167 8 $2,045 9 $1,922 10 $1,799 il rights reserved 1​

Answers

Answer:

it's A on PLATO

Step-by-step explanation:

Answer:

AAAAAA

Step-by-step explanation:

PLEASE HELP! ITS DUE TOMORROW AND I HAVE NO IDEA WHAT TO DO!! T^T

Answers

Answer:

1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 hope it help jk dont do this i have no clue

Step-by-step explanation:

10000000000000o0000000000000000000000000000000000000000ooooooooooooooooooooooooooo0000oooo00o0o0o0oo00oooooooo0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000ooooooooooooooooooooooooooooooooooooooo

1. 2

2. 1

3. 26

4. 11

5. 1

6. 42

7. 504

8. 29

9. 46

10. 18

help 6th grade math i give brainly

Answers

Answer:

325 is the answer

Prove that the two triangles are conguent.

Answers

Answer:

The sides are the same as well as the lengths

congruent would mean they are the same.

Step-by-step explanation:

please help me with this idk what to do

Answers

Answer:

It would be a straight line passing through x when it is -4.

Step-by-step explanation:

I JUST KNOW IT!

Domain:
(−∞,∞)

Range:
(-∞,∞)

Write the equation of a line that is parallel to the y axis and passes through the point (-2,5).

Answers

Answer:

2 why are your teacher so meannnnnn

The monomial of the 2nd degree with a coeficcient of 3
Anyone know how to do this I need help please

Answers

I assume it is the last one, 3n^2, because the degree is the exponent, which is two and the three is the coefficient, which is next to the variable, plus it is a monomial, so there is only one term, eliminating the first two, the third one is just reversed. Therefore, the answer should be the last one. Hope this helps. :)

Answer:

D

Step-by-step explanation:

mono means one so there must only be one term, the number in front of the variable is the coefficient, n being squared makes it to the second degree

The stock market fell 507.99 points. If the market started at 2246.73, what was it's value at the end
the day?

Answers

2246.73 - 507.99 = 1738.74 points

Answer:

Step-by-step explanation:

507.99+2246.73=

1) 8a=2pn solve for a

Answers

8a=2pn
Step 1: Divide both sides by 8.8a8=2np8a=14np

Answer: a=14np

2(4x+3)>-10 or -5x-15>5

Answers

I don’t really understand but this are the answer for both the first one: x>-2 second: x<-2

pls help
if you dont know the answer thats fine to just put idk

Answers

Step-by-step explanation:

I choose C for my answer hopes it helps

Nicole sold 2 times more t-shirts than
Geovanni. Nicole sold 56 shirts. Which
equation can show how many shirts Geovanni
sold?

Answers

Answer:

54

Step-by-step explanation:

What is the 1 million dollar math problem?

Answers

Answer:

it is join remind the class code is d394k3

join to have fun

Step-by-step explanation:

I'm not sure sorry !!

Help plz:))) I’ll mark u brainliest

Answers

Answer:

x = 4

Step-by-step explanation:

First you would add those 2 equations, which would be 43x + 8. Then you make it equal to 180, so 43x + 8 = 180. Subtract 8 from both sides, and divide 43 from both sides.

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