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2 years ago

Plea for help

Mathematics

1 answer:

melomori [17]2 years ago

6 0

Let x be the number that Xavier is thinking of.

Now let's "translate" the words into an equation:

9 + 4x = 2x - 15

This simplifies to 2x = -24, which gives x = -12.

Hope I get a brailest so I can be a new level hope that help!

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If sin theta = 4/5 then sec theta is?

Softa [21]

Answer: 53.13
Explanation of answer: since theta is the unknown, then you must use the inverse of sin. (Which is sin with -1 subscript) I used a calculator and used inverse of sin and put 4/5 in parenthesis

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3 years ago

Find the volume of the triangular prism

juin [17]

Answer:

Remember the formula for calculating volume is: Volume = Area by height. V = A X h.

For a triangle the area is calculated using the formula: Area = half of base by altitude. A = 0.5 X b X a.

So to calculate the volume of a triangular prism, the formula is: V = 0.5 X b X a X h.

Step-by-step explanation:

7 0

1 year ago

Read 2 more answers

The sum of three integers is 12

Liula [17]

The three integers are 5,17 and -10

Step-by-step explanation:

Let x, y and z be three integers then

$x+y+z=12 \ \ \Eqn\ 1$

'The sum of the first and second integers exceeds the third by 32'

$x+y=z+32\ \ \ \ Eqn\ 2$

The third integer is 15 less than the first.

$z=x-15\ \ \ \ Eqn\ 3$

From Eqn 2:

$x+y=z + 32\\x+y-z=32$

Subtracting Eqn 1 from eqn 2

$x+y-z-(x+y+z)=32-12\\x+y-z-x-y-z=20\\-2z=20$

Dividing both sides by -2

$\frac{-2z}{-2}=\frac{20}{-2}\\z=-10$

Putting z=-10 in Eqn 3

$z=x-15\\-10=x-15\\x=15-10\\x=5$

Putting x=5 and z=-10 in Eqn 1

$x+y+z=12\\5+y-10=12\\y-5=12\\y=12+5\\y=17\\$

Hence,

The three integers are 5,17 and -10

Keywords: Linear Equations, Variables

Learn more about linear equations at:

#LearnwithBrainly

3 0

2 years ago

Read 2 more answers

How do you do this? question this is a future value formula

dybincka [34]

%60 because i dont know why actually

5 0

3 years ago

Lisa purchased a professional racing bicycle that sells for 3000 including tax. it requires a $200 down payment. the remainder p

vodomira [7]

Answer:

Step-by-step explanation:

: (2.5 x 12)(11.75) = $3352.50 + 200 = 3552.50 – 300 = 3252.5

6 0

2 years ago