100 points! Will give brainliest!


Which of the following systems of inequalities has point D as a solution?

f(x) ≤ 3x + 4

g of x is less than or equal to negative one half times x minus 5


f(x) ≥ 3x + 4

g of x is less than or equal to negative one half times x minus 5


f(x) ≤ 3x + 4

g of x is greater than or equal to negative one half times x minus 5


f(x) ≥ 3x + 4

g of x is greater than or equal to negative one half times x minus 5

The Answer Is 9

Step-by-step explanation:

0.5(3)(6)

1.5(6)

9

Answer:

9

Step-by-step explanation:

I chose 9 because first you have to add 4+2 because it's in parenthesis and the other with parenthesis has no other numbers so 4+2 first then 4+2 is 6 then you multiply 6 by the 3 in the parenthesis because it is in the parenthesis then divide by 2 because 1/2 is basically dividing by 2

Answer:

4,950

Step-by-step explanation:

5 or up rounds up 4 or down rounds down therefore 4,952 rounds to 4,950

Answer:

4,950

Step-by-step explanation:

Answer:

x ⠀⠀200⠀⠀ ⠀500

y⠀⠀⠀ 11⠀⠀⠀⠀⠀a

As x directly varies with y

200 × a = 500 × 11

a = 5/2 × 11 = 27.5

Answer:

y = 27.5

Step-by-step explanation:

We know that directly proportional equations usually come in the format of  

y =  k × x  where 'k' is the constant. In this problem we are presented with a directly proportional questions asking us to find y when x= 500 considering that y varies directly with x and x = 200 when y = 11. So let's substitute in the values

→ y = k × x

⇒ Substitute in the first set of values which is x = 200 and y = 11

→ 11 = k × 200

⇒ Divide both sides by 200 to isolate 'k'

→ 0.055 = k

Now we know that the constant is 0.055 we can substitute the second set of values in,

→ y = 0.055 × x

⇒ Substitute in the second value which is x = 500

→ y = 0.055 × 500

⇒ Simplify

→ y = 27.5

If y varies directly with x and x = 200 and y = 11, the value of y when x = 500 is 27.5

Answer:

f(x) = -4x² + 19x - 18

Step-by-step explanation:

[tex]f(x) = 2x^2 - 1.5x - 5[/tex]

i) If it is translated 2 units in the positive x direction, therefore we use f(x-2)

[tex]y=f(x-2) = 2(x-2)^2 - 1.5(x-2) - 5\\y = 2(x^2-4x+4) - 1.5x+3 - 5\\y=2x^2-8x+8-1.5x+3-5\\y=2x^2-9.5x+6[/tex]

f(x) = 2x² - 9.5x + 6

If it is then translated 3 units in the positive y, we add 3 to the input function to get:

[tex]y=f(x)+3=2x^2-9.5x+6+3\\y = 2x^2-9.5x+9[/tex]

ii) stretched vertically by a factor of 2, we multiply the function by 2 to get:

[tex]y =2( 2x^2-9.5x+9) = 4x^2-19x+18\\y= 4x^2-19x+18[/tex]

iii) reflected across the x-axis

we multiply the parent function by –1, to get a reflection about the x-axis.

[tex]y= -1(4x^2-19x+18)=-4x^2+19x-18\\y=f(x)=-4x^2+19x-18[/tex]

Answer:

4

Step-by-step explanation:

Exact Form:

x

=

ln( 18)

---------

ln (2)

Decimal Form:

x=4.16992500

…

So the right answer is 21/16 cubic centimetres

Look at the attached picture

Hope it will help you

good luck on your assignment

Answer:

180°

Step-by-step explanation:

A polygon that has 32 sides is called a triacontadigon or a triacontakaidigon.

The angles of a triacontadigon add up to 5760°.

5760÷32=180°

Answer:

111 boxes

Step-by-step explanation:

He bought 223 feet of wood

Each box will take 2 feet

To determine the total number of box he'll make from 223,

1 box = 2 feet of wood

X box = 223 feet of wood

X = (223 × 1) / 2

X = 111.5 box approximately 112 boxes

But technically, since its 111.5, he'll be able to make 111 boxes completely with 0.5 feet of wood left

Answer:

1:   −5y+8x=−18  

Slope = 3.200/2.000 = 1.600

 x-intercept = -18/8 = -9/4 = -2.25000

 y-intercept = 18/5 = 3.60000

2:   Slope = -0.800/2.000 = -0.400

 x-intercept = 58/2 = 29

 y-intercept = 58/5 = 11.60000

Step-by-step explanation:

1: Step  1  :

Equation of a Straight Line

1.1     Solve   -5y+8x+18  = 0

Tiger recognizes that we have here an equation of a straight line. Such an equation is usually written y=mx+b ("y=mx+c" in the UK).

"y=mx+b" is the formula of a straight line drawn on Cartesian coordinate system in which "y" is the vertical axis and "x" the horizontal axis.

In this formula :

y tells us how far up the line goes

x tells us how far along

m is the Slope or Gradient i.e. how steep the line is

b is the Y-intercept i.e. where the line crosses the Y axis

The X and Y intercepts and the Slope are called the line properties. We shall now graph the line  -5y+8x+18  = 0 and calculate its properties

Graph of a Straight Line :

Calculate the Y-Intercept :

Notice that when x = 0 the value of y is 18/5 so this line "cuts" the y axis at y= 3.60000

 y-intercept = 18/5  =  3.60000  

Calculate the X-Intercept :

When y = 0 the value of x is -9/4 Our line therefore "cuts" the x axis at x=-2.25000

 x-intercept = -18/8 = -9/4  = -2.25000  

Calculate the Slope :

Slope is defined as the change in y divided by the change in x. We note that for x=0, the value of y is 3.600 and for x=2.000, the value of y is 6.800. So, for a change of 2.000 in x (The change in x is sometimes referred to as "RUN") we get a change of 6.800 - 3.600 = 3.200 in y. (The change in y is sometimes referred to as "RISE" and the Slope is m = RISE / RUN)

2: Same thing

Answer:

About 2/3 of the animals at the shelter are dogs

Step-by-step explanation:

Let's first transform the mixed number to the corresponding improper fraction.

67 2/3 is equivalent to (3*67 + 2)/3 = 203/3

we are asked to find a fraction equivalent to 203/3%. To do this, we have to divide the fraction by 10, as follows:

203/3% = (203/3)*(1/100) = 203/300 ≈ 2/3

Answer:

9a^2 + b^2

Step-by-step explanation:

(3a + b)^2

9a^2 + b^2

Answer:

2x - y + 3z

Step-by-step explanation:

You have to combine like terms

Hope this helps

Answer:

It does not intersect the x axis

Step-by-step explanation:

If there are no real roots the quadratic does not intersect the x axis

If there is one root it touches the x axis

2 real roots it crosses twice

Answer:

x = 6 m

Step-by-step explanation:

The area (A) of a trapezium is calculated as

A = [tex]\frac{1}{2}[/tex] h (a + b)

where h is the perpendicular height and a, b the parallel bases

Here A = 60, h = 8, a = 9 and b = x , thus

[tex]\frac{1}{2}[/tex] × 8 × (9 + x) = 60, that is

4(9 + x) = 60 ( divide both sides by 4 )

9 + x = 15 ( subtract 9 from both sides )

x = 6 m

Answer:

0=3x^2-14x-y+18

Step-by-step explanation:

Video showed me on Edge

Answer:

A

Step-by-step explanation:

edge

Answer:

C= 2 radians.

Step-by-step explanation

Length of arc = r C where r = the radius and C is the angle in radians.

Area of the sector = 1/2 r^2 C

So we have:

30 = rC  and

900 = 1/2 r^2 C

From the first equation we have  r = 30/C so substituting for r:

900 = 1/2 (30/C)^2 * C

900 = 0.50 (900/C^2) * C

900 =  450/C

C= 2 radians.

assuming b is the underscript of log, the formula is log _b_3=-8.

the formula for log is usually log_b_x=n, and to convert it to exponential would be the same as b^n=x

just fill in the numbers, b is still b, and -8 will be the in place of n, equal to 3.

b^-8=3

Answer:

A is 100%

B is 50%

C is 33.333%

D is 50%

E is 200%

F is 66.666

Step-by-step explanation:

Answer: 7x-56

Step-by-step explanation:

Multiply (x-8) by 7

Answer:

7x-56

Step-by-step explanation:

Answer:

no 6^2 + 8^2 ≠ 12^2 so this is not a right triangle

Step-by-step explanation:

The Pythagorean theorem  tells you if you have a right triangle

a^2+b^2 = c^2  where a and b are the legs and c is the hypotenuse

6^2 + 8^2 = 12^2

36+64 = 144

100 = 144

This is not true so this is not a right triangle

Answer:

C

Step-by-step explanation:

Answer:

[tex]y = \frac{c}{b} - \frac{ax}{b}[/tex] or [tex]y = \frac{c-ax}{b}[/tex]

Step-by-step explanation:

Slope intercept form is y = mx + b, so you rewrite it to equal y.

ax + by = c

by = c - ax

y = (c - ax) / b

[tex]y = \frac{c}{b} - \frac{ax}{b}[/tex]

In the image, all the lines overlap. This proves that all the equations are equal to each other.

Answer: 72 km / hour

Step-by-step explanation:

Answer:

72 km/hr

Step-by-step explanation:

First, convert from meters to kilometers. 20 meters is 0.02 kilometers.

Now that you have km/s, convert 0.02 km/s into km/h by multiplying it by the number of seconds in an hour. There are 3,600 seconds in an hour. Multiply 0.02 km/s by 3,600 secs/h to get 72km/h!

Answer:

answer is number 3.

Step-by-step explanation:

Answer: The answer is

102

Step-by-step explanation:

Answer:

A. [tex]11 + 3\frac{5}{8}[/tex]

Step-by-step explanation:

Subtracting a positive number is like adding a negative number, as in you move to the left on a number line. A negative number is the opposite of the positive, so you move to the right instead, which is equivalent to adding.

Make sure there are parenthesis around the negative number, otherwise, you might be seeing one minus sign as two!

Hope this helps!

Answer:

Step-by-step explanation:

Answer:

its c

Step-by-step explanation:

i just got it right

Answer:

answer3

beacuse to find the x-intercept, substitute in  0  for  y  and solve for  x .

Answer:

[tex]t \approx 50.4\,min[/tex]

Step-by-step explanation:

The time constant of the element X is:

[tex]\tau = \frac{13\,min}{\ln 2}[/tex]

[tex]\tau = 18.755\,min[/tex]

The decay function has the following form:

[tex]\frac{m}{m_{o}} = e^{-\frac{t}{\tau} }[/tex]

[tex]t = -\tau \cdot \ln \frac{m}{m_{o}}[/tex]

[tex]t = -(13\,min)\cdot \ln \left(\frac{11\,g}{530\,g} \right)[/tex]

[tex]t \approx 50.4\,min[/tex]

Answer:

Its actually 72.7

Step-by-step explanation:

130 degrees because x would be 60. 60-10 would be 50 which would make both angles add up to 180.

Answer: The measure of angle TRV is 130 degrees.

Step-by-step explanation:

(x - 10) +  (2x +10) =180

3x = 180

x= 60

2(60) + 10  = 130