What is the value of the expression when x = 7 and y = 7? A. 8 B. 15 C. 50 D. 97

PLS HELP

Answer:

17

Step-by-step explanation:

4(5)-3

20-3

17

the answer is 17

Answer:

82

Step-by-step explanation:

evaluate means to find the numerical value of the expression

substitute x=9 and y= -2 in the expression 10-4xy

10 -4*9*(-2) = 10+( -4 )(-2)*9= 10+8*9 =82

Answer:

B

Step-by-step explanation:

Answer:

5(6)+0.65y

Step-by-step explanation:

$5(6hrs)+65÷100=0.65

5(6)+0.65y

Answer:

[tex]26.903^{\circ}[/tex]

Step-by-step explanation:

a = 77 m

b = 72 m

c = Distance between the tugboats = 35 m

[tex]m\angle C[/tex] = Angle between the cables

[tex]c^2=a^2+b^2-2ab\cos C\\\Rightarrow m\angle C=\cos^{-1}\dfrac{c^2-a^2-b^2}{-2ab}\\\Rightarrow m\angle C=\cos^{-1}\dfrac{35^2-77^2-72^2}{-2\times 77\times 72}\\\Rightarrow m\angle C=26.903^{\circ}[/tex]

The angle formed between the cables is [tex]26.903^{\circ}[/tex].

Answer: your answer is c

Step-by-step explanation: I did this in 4th grade XD

Answer:32

Step-by-step explanation:

so all you have to do to find all posible combinations is 2 to the 6 power (64

) and devide that by 2 sience each of the "winners" have half tails

Answer:

∠1 = 116

Step-by-step explanation:

Find the inner angle first, the inner angle will be represented with x, also a triangle is 180 degrees, so:

57 + 59 + x = 180

116 + x = 180

subtract 116 from both sides

x = 64

So now u have the inner angle, and a straight line is also 180 degrees, so:

64 + ∠1 = 180

subtract 64 from both sides

∠1 = 116

Answer:

Linear equations can take several forms, such as the point-slope formula, the slope-intercept formula, and the standard form of a linear equation. These forms allow mathematicians to describe the exact same line in different ways.

hope this helps

Answer:

Part A: There are 4 zeros of the polynomial function f(x)

Part B: The zeroes of the polynomial function f(x) are -4, -1, 0, 2 ⇒ C

Step-by-step explanation:

The zeroes of a function are the x-coordinates of the point of intersection between the graph of the function and the x-axis (x-intercepts) which means values of x at y = 0

Part A:

In the given graph

∵ The graph of the function f(x) = -[tex]x^{4}[/tex] - 3x³ + 6x² + 8x intersects the x-axis

   at 4 points

→ That means there are 4 values of x have y = 0

∴ The number of zeroes of the function is 4

∴ There are 4 zeros of the polynomial function f(x)

Part B:

∵ The graph intersects the x-axis at points (-4, 0), (-1, 0), (0, 0), (2, 0)

→ That means the values of x at y = 0 are -4, -1, 0, 2

∴ f(x) = 0 at x = -4, -1, 0, 2

∴ The zeroes of the polynomial function f(x) are -4, -1, 0, 2

Answer:

x : 5

Step-by-step explanation:

I hope this is right! Good luck!

Answer:

1100/3

Step-by-step explanation:

Answer: D

Step-by-step explanation: trust me

All integers higher than or equal to 10 and less than or equal to 20 are included in the domain.

The set of all potential inputs for a function is its domain. The domain of a function is the collection of all possible values that can be used as inputs, or alternatively, it is the full range of possible values for independent variables.

The set of all values that can be plugged into a function while ensuring that it exists and accepts a real number as a value is known as the domain of the function.

The range of values that we exists allotted to enter into our function is comprehended as the domain of a function. The x values for a function like f make up this set (x).

Therefore, the correct answer is option D. The domain consists of all integers greater than or equal to 10 and less than or equal to 20.

To learn more about Domain refer to:

https://brainly.com/question/26098895

#SPJ2

Answer:

-6

Step-by-step explanation:

plug -2 into x

Answer:

1/12 foot

Step-by-step explanation:

Answer:

12 inches

Step-by-step explanation: I misread the question

Answer:

2 + 4 = f i s h

Hi the answer is f i s h fish f i s h

Answer:

2+4 is 100 B)

-K

Step-by-step explanation:

Answer:

(B) mutually exclusive

Step-by-step explanation: hope this helps!

Answer:

Yea she drove

Step-by-step explanation:

Answer:

40 mph

Step-by-step explanation:

s=vt

v = s/t

putt values

Answer:

3

Step-by-step explanation:

V=πr2h

3

Solving for r

r=3V

πh=3·47.1

π·5≈2.99924

Answer:

3

Step-by-step explaination

Answer: 8 and 1

Step-by-step explanation:

8+1=9

8-1=7

Answer:

1,251 miles

Step-by-step explanation:

if 1/3 inch is 417 miles then one inch would be 3/3 so

417 x 3= 1,251 miles.

I hope this helps!

Answer:

Store B

Step-by-step explanation:

To figure out which store has the better deal, we need to figure out the price per unit. We can do this by dividing the price by the number of the shirts. Store A sells their t-shirts for 8.33 or 8 1/3 dollars per shirt, while Store B sells their shirts for 8 dollars a shirt. 8 < 8 1/3, therefore Store B has the better deal.

Answer:

B.

Step-by-step explanation:

If you do 3/25=5/x. You would get $41.6. Another way to show it is to divide 25/3 and 40/5, which would give us $8.3 and $8.

Answer:D. (5,0)

Step-by-step explanation:

The point which is a solution to the system of inequalities graphed here is (0, 5)

Hence the point which is a solution to the system of inequalities graphed here is (0, 5)

Learn more on inequality graph here: https://brainly.com/question/24372553

Answer:

x = -4

Step-by-step explanation:

-4x + 1 > 9

-4 * -4 + 1 = 13

13 > 9

Answer:

[tex]x = 14ft[/tex]

Step-by-step explanation:

Given

[tex]Actual\ Length = 21ft[/tex]

Model:

[tex]3\ ft = 2\ in[/tex]

Required

Determine the length of the replica

Represent the model as a ratio:

[tex]Ratio = 3\ in:2\ ft[/tex]

Convert to fraction

[tex]Ratio = \frac{3\ in}{2\ ft}[/tex]

Represent the actual lengths as a ratio

[tex]Ratio = 21\ ft : x[/tex]

Where x is the length of the replica

Convert to fraction

[tex]Ratio = \frac{21\ in}{x}[/tex]

Equate both ratios (because they are in proportion)

[tex]\frac{3\ in}{2\ ft} = \frac{21\ in}{x}[/tex]

[tex]\frac{3}{2\ ft} = \frac{21}{x}[/tex]

Cross Multiply:

[tex]3 * x = 21 * 2\ ft[/tex]

[tex]3x = 42\ ft[/tex]

Solve for x

[tex]x = \frac{42ft}{3}[/tex]

[tex]x = 14ft[/tex]

Hence, the length of the replica is 14ft

Answer: C. 10.2

Step-by-step explanation: because in decimal form 10.19803902 to the nearest  is 10.2

Answer:

C

Step-by-step explanation:

Answer:

the answer is 260

Step-by-step explanation:

Plug 20 in for x in the equation.

Answer:

d. y=2x-8

b. y=3/4x-1 & y=-4/3x+9

Step-by-step explanation:

I used desmos and put in all of the answer options to see which one worked the best.

Answer:

The slope-intercept equation is:

[tex]y=\frac{3}{2}x+1[/tex]

Step-by-step explanation:

Given the equation

[tex]y-4=-\frac{2}{3}\left(x-6\right)[/tex]

comparing it with the point-slope form of the line equation

[tex]y-y_1=m\left(x-x_1\right)[/tex]

where m is the slope

As we know that the slope of the perpendicular line is basically the negative reciprocal of the slope of the line, so

The slope of the perpendicular line will be: 3/2

The point-slope form of the equation of the perpendicular line that goes through (-2, -2) is:

[tex]y-y_1=m\left(x-x_1\right)[/tex]

[tex]y-\left(-2\right)=\frac{3}{2}\left(x-\left(-2\right)\right)[/tex]

[tex]y+2=\frac{3}{2}\left(x+2\right)[/tex]

writing the line equation in the slope-intercept form

[tex]y+2=\frac{3}{2}\left(x+2\right)[/tex]

subtract 2 from both sides

[tex]y+2-2=\frac{3}{2}\left(x+2\right)-2[/tex]

[tex]y=\frac{3}{2}x+1[/tex]

Thus, the slope-intercept equation is:

[tex]y=\frac{3}{2}x+1[/tex]

Here,

As the slope-intercept form is

[tex]y=mx+b[/tex]

where m is the slope and b is the y-intercept

so

[tex]y=\frac{3}{2}x+1[/tex]

m=3/2

b = y-intercept = 1

Therefore, the slope-intercept equation is:

[tex]y=\frac{3}{2}x+1[/tex]