Consider triangle ABC where AB=X+5, BC=X-2, area is 30cm squared. Find X by solving X^2+3X-70=0, and find the perimeter.

Answers

Answer 1

Answer:

What the hell AC is not given so you can't find the Perimeter

Step-by-step explanation:

x^2+3x-70=0(x-7)(x+10)=0x-7=0

       x+10=0

x=7

       x=-10

AB=x+5

AB=12

        AB=-5

BC=x-2

BC=5

        BC=-12

Area of ABC = 30cm2

Perimeter of ABC = AB+BC+AC


Related Questions

Amab deposited Rs.200 in a bank.The banker promised 4% interest per annum. How much money will he get by end of one year?

Answers

Answer: $208

Step-by-step explanation:

200 x .04 = 208

10. A furniture company allows customers to purchase household furnishings with an in-store loan,
pay with cash or a credit card, or Rent-To-Own with a lease agreement.
A customer chooses furniture worth $3,225.00 including tax and chooses to Rent-To-Own.
Rent to Own Furniture Warehouse
• No down payment is required.
• The monthly lease payment is $156.99 for 2 years.
a. Calculate the total cost to own the furniture using the Rent-To-Own option.
b. What the amount of the finance charge on this purchase?
c. What simple interest percentage rate is this finance charge? Recall: = �

Answers

Answer:

a) Cost of rent to own option is = ($156.99/month) ( 2 yrs)( 12 month/yr) = $3767.76

b) The amount of the finance charge is = $3767.76 - $3225.00 = $542.76

c) the simple interest rate can be calculated by this formula

I = Prt, where  

I = total interest value = $542.76

P = is the present worth or original cost including taxes = $3225.00

t = time in yrs = 2  

r = Yearly interest rate, By rearranging the formula:

r = I /Pt, r = ( $542.76 / $3225.00 . 2) ( 100) = 8.415%

Step-by-step explanation:

Caitlin earned $5 for each baby hat she knitted. SHe wanted to make at least $50 before spring break. Which equation best represents this situation?
a. 5x>50
b. 5x<50
c. 5x>_50
d. 5x<_50

Answers

Answer:

c. 5x>_50

Step-by-step explanation:

Each hat earns her $5.

x number of hats will earn her 5x.

At least $50 means $50 or more, so it means the same as greater than of equal to 50.

5x >_ 50

What is the cubic root of 81 without a calculator? And how do you get it? Please explain

Answers

Answer:

[tex] 3\sqrt[3]{3} [/tex]

Step-by-step explanation:

First, notice that 81 is divisible by 3.

81/3 = 27

27 is also divisible by 3.

27/3 = 9

9 = 3 * 3

81 = 3 * 3 * 3 * 3

81 = 3^3 * 3

[tex] \sqrt[3]{81} = \sqrt[3]{3^3 \times 3} = 3\sqrt[3]{3} [/tex]

32.28 in
expanded form​

Answers

Step-by-step explanation:

expanded form is adding each place value together with zeros replacing all other spots

32.28

30.00 + 2.00 + 00.20 + 00.08

Bill baked n cookies. His friends ate 12 of them. Using n, write an expression for the number of cookies that remained.

Answers

Answer:

n-12= number of cookies left

Answer:

y=n-12

Step-by-step explanation:

y= how many cookies are left

n = number of cookies

-12 = how many his friends ate

who wants points answer this ;)

5 x 5

Answers

Answer:

25

Step-by-step explanation:

ez thanks for the fr3e points

Have a good day bro cya)

It’s 25 and thanks for the points I guess

During basketball practice, Rashed made 36 free throws in 3 minutes. How many
free throws will he make in 5 minutes?

Answers

Answer:

60

Step-by-step explanation:

So 36 divided by 3 is 12, and which then, we know that Rashed made 12 free throws in 1 minute, and then when we multiply by 5, we can know the free throws he will make in 5 minutes.

Help what is the fourth answer


Needed by tonight at 10

Answers

Answer:

where is the question?!

where is the question at.. lol

Sooo my math teacher who’s a pain in the behind was the only one gave us homework while we’re out for and extended 1 day so if you would please help me bc I have to go back and turn this in tomorrow, please and thank you :/ (just 8-16)

Answers

Answer:ok??/????????

Step-by-step explanation:Whaaaaat?????

Please lemme know soon, ty

Answers

Answer:

PHOTO IS BLACK . SO , I CAN'T ANSWER UR QUESTION


Solve for the variables and show work please

Answers

Answer:

e=30

k=15/2

h=90

Step-by-step explanation:

3e=60

e=30

30+4k=60

4k=30

k=15/2

15/2+2h=30

2h=45/2

h=90

Khan academy What is the slope of the line?

Answers

Answer:

Slope: 3/4

Step-by-step explanation:

If you want the equation for the line:

y = (3/4)x - 1

However, this is how you find the slope:

You want to find any two point on the graph, however, it's easier if it touches exactly where two number meet. For example I chose:

(0,-1) and (2,4)

Now just find the change in y, and divide it by the change in x

change in y = 3

change in x = 4

So your slope is 3/4

Answer:

3/4

Step-by-step explanation:

Quis
bentuk akar dari
[tex] \sqrt{18} + \sqrt{32} - 3 \sqrt{8} = [/tex]

Answers

Answer:

[tex]\sqrt{18} + \sqrt{32} - 3 \sqrt{8} = \\ = \sqrt{9 \times 2} + \sqrt{16 \times 2} - 3 \sqrt{4 \times 2} \\ =3 \sqrt{2} + 4 \sqrt{2} - 3 \times 2 \sqrt{2} \\ = 3 + 4 - 6 \sqrt{2} \\ = 7 - 6 \sqrt{2} \\ = 1 \sqrt{2} [/tex]

Semoga membantu

Answer:

[tex]\sqrt{18} + \sqrt{32} - 3 \sqrt{8} = 1 \sqrt{2} [/tex]

The domen range of the function y = √(x² - 4) is _____.

Please explain with step i need explanation.​

Answers

[tex] {\large\underline{\sf{Solution-}}}[/tex]

Given function is

[tex]\rm \longmapsto\:y = \sqrt{ {x}^{2} - 4} [/tex]

We know

Domain of a function is defined as set of those real values of x for which function is well defined.

So, y is defined when

[tex]\rm \longmapsto\: {x}^{2} - 4 \geqslant 0[/tex]

[tex]\rm \longmapsto\: {x}^{2} - {2}^{2} \geqslant 0[/tex]

[tex]\rm \longmapsto\: (x - 2)(x + 2) \geqslant 0[/tex]

[tex]\rm\implies \:x \leqslant - 2 \: \: or \: \: x \geqslant 2[/tex]

[tex]\rm\implies \:x \: \in \: ( - \infty , \: - 2] \: \cup \: [2, \: \infty )[/tex]

Now, To find the range of function

We know,

Range of a function is defined as set of those real values which is obtained by assigning the values to x.

So,

[tex]\rm \longmapsto\:y = \sqrt{ {x}^{2} - 4} [/tex]

On squaring both sides, we get

[tex]\rm \longmapsto\: {y}^{2} = {x}^{2} - 4[/tex]

[tex]\rm \longmapsto\: {y}^{2} + 4= {x}^{2}[/tex]

[tex]\rm \longmapsto\:x = \sqrt{ {y}^{2} + 4 } [/tex]

Now, x is defined when

[tex]\rm \longmapsto\: {y}^{2} + 4 \geqslant 0 \: which \: is \: always \: true \: \forall \: y \in \: real \: number[/tex]

But,

[tex]\rm \longmapsto\:y \geqslant 0[/tex]

Hence,

[tex]\rm\implies \:Range \: of \: function \: = [0, \: \infty )[/tex]

So, we have

[tex]\rm\implies \:Domain \: of \: function : x \: \in \: ( - \infty , \: - 2] \: \cup \: [2, \: \infty )[/tex]

and

[tex]\rm\implies \:Range \: of \: function \: = [0, \: \infty )[/tex]

Fill in the missing number. % of 90 = 54

Answers

Answer:

60

Step-by-step explanation:

Trust me homie

In 2007, the number of tickets sold was again 210.
Adult tickets were $2.60 each and student tickets were $1.40 each.
The total amount received from selling the 210 tickets was $480.
How many student tickets were sold?

Answers

Step-by-step explanation:

1.40x + 2.60x = 480

4x =480

x=480÷4

x=120

168 and 312

A television that costs $500 is marked up by 250%. What is the new price of the television?

Answers

answer:
625$

explanation: first you need to find what 250% of 500$ is. which to find that out , you take 500 times 0.250 which gives you 125. then you just add 125+500 and get 625$

hope this helps:)

Answer:

Its $1,750

Explanation: I got it right

The telephone company offers two billing plans for local calls. Plan 1 charges $36 per month for unlimited calls and Plan 2 charges $13 per month plus $0.05 per

call

a. Use an inequality to find the number of monthly calls for which Plan 1 is more economical than Plan 2

b. Explain the meaning of the answer to part a.

a. Let x represent the number of monthly calls. The answer is

(Type an inequality.)

Answers

Answer:

After 460 calls plan 1 is more economical than plan 2

Step-by-step explanation:

Plan 1: 36x + 0y

Plan 2: 13x + 0.05y

36x < 13x + 0.05y

36x - 13x < 0.05y

23x < 0.05y

23/0.05x < y

460x < y

A game spinner has 8 sections, 3 red, 1 blue, 2 yellow, and 2 green. What is the probability that you will spin a yellow?

Answers

Answer:

1/4 Percent

Step-by-step explanation:

add all them up and youll get 8 the see the yellow takes up 1/4 percent of the numbers.

Alice is inventorying two different warehouses. In the first warehouse, she determines that there are 4.6X10 to the third power of boxes. In the second warehouse, she determines that there are 5X10 to the fourth power of boxes. What is the combined number of boxes in both warehouses?


PLEASE HELP!!!!

Answers

Answer:4.6 × 30= 138

5 × 40= 200

Step-by-step explanation:

Write the equation.Please help

Answers

y = 3x is the answer
I did the math

Help please!!!!!!!!!!!!!!!!!!

Answers

Answer:

Step-by-step explanation:

6) At y-intercept , x = 0

So, y-intercept = 3

5) Slope = Change in y/ change in x

              [tex]= \dfrac{3-1}{0-[-3]}\\\\= \dfrac{2}{0+3}\\\\= \dfrac{2}{3}[/tex]

A man deposited $80,000.00 in a bank at 12% compound interest per annum. How much did the man have in the bank at the second year

Answers

The amount that the man have in his bank at the second year is $100,352.

Using this formula

A=P(1+R÷100)^n

Where:

A=Amount

P=Principal=$80,000

R=Rate=12%

n=Number of years=2 years

Let plug in the formula

A=$80,000(1+12÷100)^2

A=$80,000(1+0.12)^2

A=$80,000(1.12)^2

A=$80,000(1.2544)

A=$100,352

Inconclusion the amount that the man have in his bank at the second year is $100,352.

Learn more here:

https://brainly.com/question/25213872

Which fraction is equal to
2/8
A. 1/4
B. 2/4
C. 3/4
D. 6/4
E. 4/8

Answers

Answer:

a

Step-by-step explanation:

because if you divide 8 by 2 the number 2 goes into 8 4 times so 4 divided by 1 is 4 because 1 goes into 4 4 times

Answer:

a

Step-by-step explanation:

half the fraction

8%2=4

2%2=1

1/4

what is I need help with this 3/4 + 1/3 =

Answers

Answer:

Find the LCM of 3 and 4

Divide 12 by 4 and multiply with 3 which is 9

Divide 12 by 3 and multiply with 1 which is 4

9 plus 4 is 13

so the answer is 13/14

Are the graphs of the equations parallel, perpendicular, or neither? y = 4x + 1 and y = -4x -

Answers

Answer:

I am not sure if you fully typed the second equation, but both of these that are written down intersect, there for are perpendicular.

If the second equation is incorrect, let me know and I'll be happy to help you :)

Neither.

Parallel lines have the same slope, while perpendicular lines have negative reciprocal slopes (multiplying their slopes result in a product of - 1). The negative reciprocal of 4 is -1/4, and the negative reciprocal of -4 is 1/4.

Since the slopes of both lines are not the same, and that they are not negative reciprocals, then the correct answer is neither.

What is the area of a circle if the circumference is 29

Answers

Answer:

67 square units

Step-by-step explanation:

Circumference/pi = diameter

29/3.14 = 9.24

Radius = 9.24/2 = 4.62

A = pi * r^2

A = 3.14 * 4.62^2 = 67 square units

1/2 divided by 7 3/4

Answers

Answer:

15 1/2

Step-by-step explanation:

Answer:

4/155

0.025 rounded to the nearest thousandth

Step-by-step explanation:

⁻x₋5у₊z=17
¬5x-5y+5z=5
2x+5y-z=10

Answers

Step-by-step explanation:

they are not like variables and terms so u cant add them nor subtract term soit stays as it is

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