Right triangles trigonometry

Answer:

The price increased by 64.5, which makes a total of 279.5

Step-by-step explanation:

215*0.30 = 64.5

215 + 64.5 = 279.5

0.30 = 30% of 100

When you multiply by 0.30 you get 30%, or with any decimals, like multiply by 0.50 to get 50% of something, etc.

Answer:

x = 0

y = -3

Step-by-step explanation:

-5x + y = -3 --------------(I)

3x - 8y = 24 ------------(II)

Multiply the equation (I) by 8

(I)*8    - 40x + 8y = -24

(II)         3x -  8y   =  24   {Add and y will be eliminated}

           -37x          = 0

                     x     = 0

Plugin x = 0  in equation(I)

-5*0 + y = -3

     0 + y = -3

           y = -3

Answer:

- 5x + y =-3    ......1

3x -8y = 24.........2

eqn 1 is multiply by 8 .we get -40 x +8y=-24 .....3

-40 x +8 y =-24 ...........3

3 x   - 8y  = 24     ......... 2

·································

-37 x +0 = 0

··························

x =0

put x = 0 in equation 2

3 x -8 y =24

3×0 -8 y = 24

0 -8 y=24

-y =24÷8

-y =3

y = -3

ans ;

x = 0

y = -3

Step-by-step explanation:

Answer:

A. 7

Step-by-step explanation:

Now the power of the highest degree term is 7 so the degree of the polynomial is 7.

Answer:

A. 7

Step-by-step explanation:

Have a great day

Answer:

rg+2d= 12

Step-by-step explanation:

(3+5)+2(2)

8+4=12

Answer:

The value of x = 3.

Step-by-step explanation:

The ratio between length and width is given by:

[tex]\frac{L}{W}=\frac{5}{3}[/tex]

Where:

Now, we know that each dimension is reduced by x inches, it means:

[tex]L=18-x[/tex]

[tex]W=12-x[/tex]

Then, we will have:

[tex]\frac{18-x}{12-x}=\frac{5}{3}[/tex]

Finally, we just need to solve it for x.  

[tex]3(18-x)=5(12-x)[/tex]

[tex]5x-3x=60-54[/tex]

[tex]2x=6[/tex]

[tex]x=3[/tex]

Therefore, the value of x = 3.

I hope it helps you!

Answer:

Ok, first of all, Nobody is ugly don't listen to the haters. But I feel like yr cousin can glow up. He just needs to get rid of the glasses and get a new hairstyle, workout, and dress better!

Answer:

A

Step-by-step explanation:

just count lol

it's 14 cubic units.

Answer:

The range here is 85

Step-by-step explanation:

Here, we want to calculate the range of the data

Mathematically, the range is defined as the difference between the lowest value and the highest value in the dataset

From the given data points, the highest value is 189, while the lowest value is 104

So the range is the difference between the two which is;

189-104 = 85

Answer:

Step-by-step explanation:

Answer:

1. x=9

2. x=88

3. x=-15.7

4. x=-6

5. x=-20

6. x=10

7. x=-12

8. x=25

Hope this helps

Answer:

hello again

Step-by-step explanation:

the radius of the circle is 6mm

for having the circumference we need diameter

for having diameter we should multiply in 2

so:

[tex]d = 2r \\ \\ d = 2 \times 6 = 12mm \\ v = \pi \: d \\ v = 12\pi \: mm[/tex]

i hope this is the answer

Answer: ☁️ x = 7,-5. ☁️

Hope it helps.

Explanation: Have a nice day!~ ￣▽￣❤️

Answer:

Texas is 2.08333 * 10^2 times the size of Carolina.

Step-by-step explanation:

Given :

Given that:

Texas= 2.5x10^5

Carolina = 1.2x10^3

Comparing the size of Texas and Carolina

Texas / Carolina

(2.5 * 10^5) ÷ 1.2 * 10^3

(2.5/1.2) * 10^5-3

2.08333 * 10^2

Hence, Texas is 2.08333 * 10^2 times the size of Carolina.

Answer:

First one is one triangle.

Second one is one triangle.

Third one is no triangle (I think, I've never studied this kind of math before so I'm kinda stumped)

Answer:

A bacteria culture initially contains 2500 bacteria and doubles every half hour. The formula for the population is p(t)=2500e^(kt) for some constant k. Find the size of the bacterial population after 100 minutes. Find the size of the bacterial population after 4 hours.

Step-by-step explanation:

Answer:

1. 10000 bacteria

2. 640000 bacteria

Step-by-step explanation:

2500 bacteria: 30 minutes

x bacteria: 60 minutes

The bacteria gets doubled twice

2500*2*2=10000

x bacteria:240 minutes

The bacteria gets doubles 8 times

2500*2*2*2*2*2*2*2*2= 640000

Answer:

25

Step-by-step explanation:

square 7 and 24 to get 625. Then square root it to get 25

Answer: B or D

Step-by-step explanation:

Answer:

10 ft.

Step-by-step explanation:

V = Bh where B = area of the base, which is a circle in your problem.

So, B = [tex]\pi r^{2}[/tex]

225π = π[tex]r^{2}[/tex](9)

[tex]r^{2}[/tex] = 25

r = 5 ft

diameter = 2r = 10 ft.

Answer: 21

Step-by-step explanation:

3x+2+5x+10= 180 (the Angles are supplementary)

8x+12=180

8x=168

x=21

Answer:

4xy/z^2

Step-by-step explanation:

Here, we want to make a division

We have this as;

24xy^2/6yz^2

that will be

24/6 * x * y^2/y * 1/z^2

= 4 * x * y * 1/z^2 = 4xy/z^2

Answer:

A. ST = RU

Step-by-step explanation:

Quadrilaterals are four sided figures. Examples are: square, rectangle, trapezium, parallelogram etc. A parallelogram is a quadrilateral that has equal opposite and parallel sides.

This implies that in the given question since RS || TU, then;

RS = TU = 6

So that for RSTU to be a parallelogram,

ST = RU

Thus, the appropriate option to the question is A.

Answer:

10 and 9 so 90

Step-by-step explanation:

10 times 9 equals 90

Answer:

1[tex]x^{2}[/tex]

Hope that helps!

Step-by-step explanation:

Answer:

A banana could be one

Step-by-step explanation:

Answer:

Caitlyn's average is roughly 11.4.

Step-by-step explanation:

You get this by dividing 46 by 4, which gets you 11.5.

You then divide 79 by 7, that equals 11.3, rounded.

The number in-between the two numbers is 11.4.

Hope this helps!

Pls mark brainliest! ;)

Answer:

The answer would be B

Step-by-step explanation:

the y-intercept would be a postive 4 and because it's a negative slope, it would rule out all of them except B.

Answer:

y = -1/2x +4

Step-by-step explanation:

We have two points so we can find the slope

m = (y2-y1)/(x2-x1)

   = ( 0-4)/(8-0)

   = -4/8

   = -1/2

We know the y intercept is 4

The slope intercept form of the line is

y = mx+b where m is the slope and b is the y intercept

y = -1/2x +4