Paul has a sum of $260 in $5 and $10 bills. If he has 40 bills in total, how many were of each denomination?

Answer:

x=-2

Step-by-step explanation:

4x-1=3x-3

x=-2

X = -2

Step-by-step explanation:

Solve for x by simplifying both sides of the equation, then isolating the variable.

Given :

A curve : 3x² - 2xy + y² = 11

To Find :

The slope of the line tangent to the curve 3x^2-2xy+y^2=11 at the point (1, -2).

Solution :

Differentiating given curve w.r.t x is :

6x - ( 2y + 2xy' ) + 2yy' = 11

Putting the point ( 1, -2) in above equation, we get :

6 - ( 2(-2) + 2y' ) - 4y' = 11

6 - ( -4 + 2y' ) - 4y' = 11

10 - 6y' = 11

6y' = -1

[tex]y' =\dfrac{-1}{6}[/tex]

Therefore, the slope of the line tangent to the given point is [tex]y' =\dfrac{-1}{6}[/tex] .

Answer:

5/3

Step-by-step explanation:

The previous explanation was incorrect because they forgot to differentiate the other side of the equation (11), which would actually become 0, and make the answer 5/3

Answer:

B also the full name of vertically angles is called the vertically opposite angle theorem or voat

Answer:

16.04°

Step-by-step explanation:

[tex]2.8 \: rad = x \: degrees \\ [/tex]

1rad × 180/π = 57.296°

[tex]x = 2.8 \times \frac{180}{\pi} = 16.0428 \\ x = 16.04[/tex]

Answer:  See explanation

Step-by-step explanation:

The best deal would be either I or III. Either would result in a discount of 25% which is better than the other which is 20%

Answer:

uhm where is the chart??

Answer: square root 2 over 2

Step-by-step explanation: edg BS algebra2b

Answer:

The slope of graph is [tex]\mathbf{\frac{3}{2}}[/tex]

Option C is correct option.

Step-by-step explanation:

We need to find the slope (rate of change) of the graph

The formula to calculate slope is: [tex]Slope=\frac{y_2-y_1}{x_2-x_1}[/tex]

Taking two points from the graph: (You can take any two points from the graph)

Point 1 (-4,-3)

Point 2 (-2,0)

We have: [tex]x_1=-4, y_1=-3, x_2=-2, y_2=0[/tex]

Putting values in the formula and finding slope

[tex]Slope=\frac{y_2-y_1}{x_2-x_1}\\Slope=\frac{0-(-3)}{-2-(-4)} \\Slope=\frac{0+3}{-2+4} \\Slope=\frac{3}{2}[/tex]

So, the slope of graph is [tex]\mathbf{\frac{3}{2}}[/tex]

Option C is correct option.

Answer:

7x12

Step-by-step explanation:

product is multiplication

The answer should be 126 or A.

Answer:

deciameter form is 16.256.... one meter is 100.... one decameter 100.... one hectometer is 10000.... one kilometer 10000

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Use the pythagorean theorem to find the hypotenuse. You can do this by squaring 12 and 11 (separately) and then adding those together. You'll get 265. However, since this is c squared and not c, you have to find the square root for the correct answer. The square root of 265 is approximately 16.28. Hope this helps!

Step-by-step explanation:

3. Let us take apart the right side

1+cos2x = 1 + cos^2x - sin^2x

1 - sin^2x = cos^2x

therefore we have 2cos^2x

Therefore we just have cos^2x/cos^2y = 2cos^2x/2cos^2y, which is true.

4. tan(x/2) = +/- sqrt((1-cosx)/(1+cosx)) using half angle identities for sin and cos.

Therefore tan^2(x/2) = (1-cosx)/(1+cosx)

If we multiply top and bottom by tanx, we get

(tanx - sinx)/(tanx + sinx), which is the right side.

Answer: 2/3 bowl

Step-by-step explanation: you divide the 2 bowls by 3 since there are 3 people

Answer:

D.) -6m - n + 3

Step-by-step explanation:

-3 (2m - 1) - n

-6m + 3 - n

-6m - n + 3

If I helped, please mark me the Brainliest!?!

Answer:

The only one

Step-by-step explanation:

The one that is shown has a negative b^2-4ac value.

We know this because the function has no real roots -> that means that they must be complex, which can only occur if b^2-4ac < 0

Answer:

it's D, the last graph.

Step-by-step explanation:

took the unit test review and made a 100

Answer:

It is a many-to-one relation

Step-by-step explanation:

Given

See attachment for relation

Required

What type of function is it?

The relation can be represented as:

[tex]\left[\begin{array}{c}x\\ \\-5\\-2\\1\\5\end{array}\right][/tex]         [tex]\left[\begin{array}{c}y\\ \\10\\11\\4\\10\end{array}\right][/tex]

Where

[tex]x = domain[/tex] and [tex]y = range[/tex]

Notice that the range has an occurrence of 10 (twice)

i.e.

[tex](x_1,y_1) = (-5,10)[/tex] and [tex](x_2,y_2) = (5,10)[/tex]

In function and relations, when two different values in the domain point to the same value in the range implies that, the relation is many to one.

Crew because 23>8 23 is larger than 8

Magnitude=A great size, or extent of something

Given:

The function is [tex]f(x)=3.5x^3[/tex].

To find:

Whether the given function is Steeper, Less steep, or Reflected over the x-axis to describe the other function.

Solution:

Transformation of function: If f(x) is function and

[tex]g(x)=a\ f(x)[/tex]

Here, a is vertical stretch or compression.

If 0<|a|<1, then g(x) is less steeper than f(x) because f(x) is vertically compressed.

If |a|>1, then g(x) is steeper than f(x) because f(x) is vertically stretched.

If a is negative, the f(x) is reflected over the x-axis, to get g(x).

On comparing the function [tex]p(x)=4.5x^3[/tex] with [tex]f(x)=3.5x^3[/tex], we get 4.5>3.5 So, it is the case vertical stretched and p(x) is steeper than f(x).

On comparing the function [tex]q(x)=-x^3[/tex] with [tex]f(x)=3.5x^3[/tex], we get |-1|=1<3.5 So, it is the case  vertical compression and q(x) is less steeper than f(x) and because of negative sign the function is reflected over axis.

On comparing the function [tex]r(x)=3x^3[/tex] with [tex]f(x)=3.5x^3[/tex], we get 3<3.5 So, it is the case vertical compression and r(x) is less steeper than f(x).

Therefore, [tex]p(x)=4.5x^3[/tex]  is steeper.

[tex]q(x)=-x^3[/tex] is less steep and reflected over the x-axis.

[tex]r(x)=3x^3[/tex] is less steep.

Answer:

x=57

Step-by-step explanation:

add a line perpendicular to PQandRS

then 90+90+130+116+2x=540

2x=114

x=57

in the figure PQ//RS

the value of x=33

Step-by-step explanation:

I guess the answer is 7....

I am not sure....I tried

Answer:

Sophia gets 7,150

Step-by-step explanation:

Answer: 58

Step-by-step explanation: can't really explain, but I promise that's right

Answer:

58 is a reasonable estimate for the number of students wearing glasses.

Step-by-step explanation:

20% of 290 ( or 290*0.2) is equal to 58.

Therefore, the answer is 58.

I hope this helps!

Answer:

Step-by-step explanation:

Here you go mate

PEDMAS

Parenthesis

Exponents

Division

Multiplication

Addition

Subtraction

Step 1

4x - 2y = 8 ,y = 3/2x - 2  equation/Question

Step 2

4x-2y=8  Substitute

4x-2( 3 /2 x-2)=8

Step 3

x+4=8  simplify

x=4

Step 4

y= 3 /2 x-2  substitute 4 for x

y= 3 /2 (4)-2

Step 5

y= 3 /2 (4)-2  simplify

y=4

answer

x=4

y=4

Answer:

5:7

hope it helps........