Mathematics High School

Please help me find the value of x

Answers

Answer 1

Answer:

Step-by-step explanation:

[tex](tangent)^{2}[/tex] = AC × CB

[tex]12^{2}[/tex] = ( x + 9 ) 9

144 = 9x + 81

9x = 144 - 81

9x = 63

x = 63 ÷ 9

x = 7

Related Questions

In 2007, the value of a house was £119,995 From 2007 to 2018, house prices decreased by 9.4%. How much has the value of the house decreased by?

Answers

Answer: £11,279.53

Step-by-step explanation:

Given

In 2007, the price of the house was £119,995

Price decreases by 9.4%

[tex]\Rightarrow \text{Current Price}=\text{Old Price}-9.4\%\text{Old Price}\\\Rightarrow 119,995-9.4\%\ \text{of}\ 119,995\\\Rightarrow 119,995(1-0.094)=119,995\times 0.906\\\Rightarrow 108,715.47[/tex]

Price decreased by 119,995-108,715.47=£11,279.53

Graph the solutions of the given system of linear inequalities.
y < 3x-2
y ≤ x + 1

Answers

Answer:

pls upload photo for your question

Mrs. jack bought 150 T-shirt for $1920 from a factory calculate the cost of one Tshirt

Answers

Answer:

.07 if rounded then .08

Step-by-step explanation:

150 / 1920 = .078125

hope this helps...

Hey! The answer is $12.80 per shirt

To find the answer, we need to divide 1920 by 150

1920/150 = 12.8

Hope this helps!! :)

if your heat beats 75times per minute how many time does it beat in 5 hours

Answers

Answer:

This is your answer . IfI'm right so,

Please mark me as brainliest. thanks!!!

PLEASE HELP
show work for problem

Answers

Answer:

[tex]tan(x)-1 =30/45[/tex]

Step-by-step explanation:

put that in your calculater

Barak spent $20 at the mall. This represents 16% of the money he earned working at the pizza parlor last week. How much money did Barak earn at the pizza parlor last week?

Answers

Answer: Amount of Money Barak earned last week =$125

Step-by-step explanation:

Amount of money Barak spent= $20

Amount of money spent = 16% of Money earned (X)can be represented as

16% x X =20

0.16 x X =20

X = Money earned last week = 20/ 0.16= $125

48÷-6-(-2)3
Calculate the following , showing all the steps

Answers

Answer:

-2

Step-by-step explanation:

48 ÷ -6- (-2)3

= -8 - (-2)3

= -8 - (-6)

= -8 +6

= -2

1) -2*3 = -6
2) -6 - (-6) = 0
3) 48/0 = 0

Pls help I need this answer asap I got 10 min left :(

Answers

Answer:

Initial Value: 4

ROC: - 4/5

Step-by-step explanation:

I know you're short on time, if you want an explanation, let me know!

Answer:

Step-by-step explanation:

Based on the problem above, how would you rewrite as a binomial squared?

x^2 + 8x - 3 = 0 (x + __ )^2 = __

Answers

Answer:

the quadratic equation cannot be written as the square of a binomial

Step-by-step explanation:

Given the expression

x^2 + 8x - 3 = 0

On factorizing

x = -8±√8²-4(-3)/2

x = -8±√64+12/2

x = -8±√76/2

x = -8±8.7/2

Note that since the since the discriminant is not a prefect square, the quadratic equation cannot be written as the square of a binomial

a watch is sold for $130 at a loss of $30. what was the original cost of the watch

Answers

Answer:

130.00 + 30.00 = $160.00

Step-by-step explanation:

if i can make 60 cakes in 15 minutes , how many can i make per minute what is the unit rate

Answers

4 per a minute

Step-by-step explanation:

Janine plans to deposit $20,000 at the end of each year for eight years into an investment account. The mutual funds containing stocks what continue to yield 6% per year. Find the future value.

Answers

Answer:

$197,949.40

Step-by-step explanation:

Just took the quiz.

Hi please help thank you so much

Answers

Answer:

23.09 ft

Step-by-step explanation:

tan = [tex]\frac{opposite}{hypotenuse}[/tex]

⇒ tan 13 = [tex]\frac{x}{100}[/tex]

tan of 13 is 0.23086

⇒ 0.23086 = [tex]\frac{x}{100}[/tex]

multiply each side by 100

⇒ 0.23086 x 100 = [tex]\frac{x}{100}[/tex] x 100

solve:

⇒ 23.0868

round to the nearest hundreth:

⇒ 23.09

14.875/1.5 step by step

Answers

Answer:

9.916...

Step-by-step explanation: (The "6" is repeating)

Divide using long division. The whole number portion will be the number of times the denominator of the original fraction divides evenly into the numerator of the original fraction, and the fraction portion of the mixed number will be the remainder of the original fraction division over the denominator of the original fraction.

This gives us a mixed number-fraction: 9 and 11/12.

If we then turn this into a simplified fraction, then it becomes 119/12. Turn that into a decimal by dividing the numerator by the denominator.

This gives us our answer of 9.916...!!! Hope that helps!

ahmed is 4 years old than sara, 5 years ago the sum of their age was 48, write a algebric equation to represent the situation and find saras age

Answers

Answer:

bjbhj

Step-by-step explanation:

Which term has the definition "A data point that is very large or very small in comparison
to the rest of the data set"?
A.Maximum
B. Outlier
C. Variability
D. Minimum

Answers

Answer:

B. Outliers

Step-by-step explanation:

B. Outliers are those that are separated from the rest.

how much force is needed to accelerate a 66kg skier at 2m/second

Answers

Answer:

[tex]\huge\boxed{\sf F = 132\ N}[/tex]

Step-by-step explanation:

Given Data:

Mass = m = 66 kg

Acceleration = a = 2 m/s²

Required:

Force = F = ?

Formula:

F = ma

Solution:

F = (66)(2)

F = 132 N

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

~AH1807

Find the distance between the two numbers on a number line. Write your answer as a fraction in simplest form.

3/4,1/8

Answers

Answer:

From 3 to 4,1 is 1,9 and from 4,1 to 8 it is 4,9 I think. I am sorry if I'm wrong I haven't done this is a while?

The ratio of girls to boys is 12 girls to 20 boys.
If there are 3 girls, how many boys are there?
There are
boys.
Next Question

Answers

Answer:

Step-by-step explanation:

ratio = 12:20

12/4 = 3

so we do

20/4 = 5

there are 5 boys

Another way, we can write it as a fraction

12/20 = 3/x

12x = 60

x = 5

Answer:

5 boys

Step-by-step explanation:

Write it like this:

3/X=12/20

Then, cross multiply.

3*20=60

X*12=12X

12X=60

Divide both sides by 12

60/12=5

X=5

The unknown number is 5

If there are 3 girls, then there are 5 boys.

HELP PLEASE!!

Planes that fly at high speeds and low elevations have radar systems that can determine the range of an obstacle and the angle of elevation to the top of the obstacle. The radar of a plane flying at an altitude of 20,000 feet detects a tower that is 25,000 feet away, with an angle of elevation of 1∘.

a. How many feet must the plane rise to pass over the tower?

The plane must rise at least _____feet to pass over the tower.

Question 2
b. Planes cannot come closer than 1000 feet vertically to any object. At what altitude must the plane fly in order to pass over the tower?

The plane must fly at an altitude of at least ____ feet to pass over the tower.

Answers

Answer:

a. About 436 ft

b. 21,436 feet

Step-by-step explanation:

BC² = AB² + AC²

BC² = 6² + (7.3)²

BC = [tex]\sqrt{89.29}[/tex]

BC =

BC = 9.445

BC ≈ 9.5 mm

wanna help a fellow hawt person out?

Answers

Answer:

Step-by-step explanation:

You gotta add up 38 and 12 because it reflects and it's the same across ABC

Mister mayor has asked that you pass a geometry quiz before you begin building. He wants you to make sure you are qualified before you begin building his city.

Answers

Answer:

what do you need help with tho lol

Step-by-step explanation:

What is the range of this data set?

3.7, 18.5, 2.7, 13.8, 7.5, 15.2, 10.1, 7.6, 17.8

14.1

15.8

17.8

18.5

Answers

Answer:the answer is 15.8

Step-by-step explanation:

A leaky valve on the water meter overcharges Ahmed for one Liter of water for every 2 months. The overcharged amount w varies directly with time t . (a) Find the equation that models the variation . (b) Solve the equation to find the number of months it will take for Ahmed to be overcharged for 10 liters of water leaked. Show all your steps

Answers

Answer:

20 months

Step-by-step explanation:

A leaky valve on the water meter overcharges Ahmed for one Liter of water for every [tex]2[/tex] months. The overcharged amount [tex]w[/tex] varies directly with time [tex]t[/tex].

(a)

As the overcharged amount [tex]w[/tex] varies directly with time [tex]t[/tex],

[tex]w=kt[/tex]

Here, [tex]k[/tex] is a constant.

A leaky valve on the water meter overcharges Ahmed for one Liter of water for every [tex]2[/tex] months.

Put [tex]w=1\,,\,t=2[/tex]

[tex]1=2k\\k=\frac{1}{2}[/tex]

So,

[tex]w=\frac{t}{2}[/tex]

(b)

To find the number of months it will take for Ahmed to be overcharged for 10 liters of water leaked, put [tex]w=10[/tex] in [tex]w=\frac{t}{2}[/tex]

[tex]10=\frac{t}{2}\\\\t=10(2)\\[/tex]

[tex]t=20[/tex] months

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