Answer:
6+2=8 12-8=4 so she has $4 left
Step-by-step explanation:
Answer:
12-6-2=4
or
6+2=8, 12-8=4
how do you turn 372800 into scientific notation
Answer:
3.78x10^5
Step-by-step explanation:
Find all values of c such that f is continuous on (-[infinity], [infinity]). f(x) = { 3 - x^2 x less than or equal to c x, x > ca. c = -1 + squareroot 13/2, -1 - squareroot 13/2.b. c = 0. c. c = -1 = squareroot 13/2.d. c = 2.e. c = -1 + squareroot 13/2, 1 - squareroot 13/2.
Answer:
a) [tex]c=\frac{-1+\sqrt{13}}{2}[/tex] and [tex]c=\frac{-1-\sqrt{13}}{2}[/tex]
Step-by-step explanation:
The idea for the solution of this equation is to find the value of c where both parts of the piecewise-defined function are the same. So we need to take the parts of the function and set them equal to each other, so we get:
[tex]3-x^{2}=x[/tex]
and then solve for x. We move everything to one side of the equation so we get:
[tex]x^{2}+x-3=0[/tex]
and we use the quadratic formula:
[tex]x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}[/tex]
and we substitute:
[tex]x=\frac{-1\pm \sqrt{(1)^2-4(1)(-3)}}{2(1)}[/tex]
and solve
[tex]x=\frac{-1\pm \sqrt{1+12}}{2}[/tex]
[tex]x=\frac{-1\pm \sqrt{13}}{2}[/tex]
so our two answers are:
a) [tex]c=\frac{-1+\sqrt{13}}{2}[/tex] and [tex]c=\frac{-1-\sqrt{13}}{2}[/tex]
Choose the correct solution to the equation.
-3+w=
a. 2
b. Ž
ch
d. None of the Above
Оа
Ob
Ос
Od
Answer:
Step-by-step explanation: I have no clue
Slope intercept Functions
How do you breakdown the quotient for 814÷3.7
Answer:
move the decimal to the end and add a zero to 814 i think
Step-by-step explanation:
SOMEONE please help me!!! pls pls pls!!!
it is true because 14 is 1/14
NEED HELP ASAP!!! Solve 0 = (3x - 4) / 5
answer: 1.13622
Step by step explanation:
n:
0=(3x-4)/5
0=3x/5-4/5
x=1.3.....
The sum of two numbers is 190. The sum of their digits is 10.
Can someone please help the question is below thank you!
Answer:
you just times the number buy 9 and 3 then divid by 3
Step-by-step explanation:
The manager of a restaurant found that the cost to produce 200 cups of coffee is $65.00 , while the cost to produce 250 cups is $77.50 . Assume the relationship between the cost y to produce x cups of coffee is linear. a. Write a linear equation that expresses the cost, y, in terms of the number of cups of coffee, x. b. How many cups of coffee are produced if the cost of production is $135.00 ?
Answer:
a). y = 0.25x + 15
b). x = 480 cups
Step-by-step explanation:
(a). Let the equation of the linear function passing through a point (x', y') is,
y - y' = m(x - x')
'm' = slope of the line
b = y-intercept
Two points lying on the linear function will be (200, 65) and (250, 77.5).
Slope of the line 'm' = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]
m = [tex]\frac{77.5-65}{250-200}[/tex]
= [tex]\frac{12.5}{50}[/tex]
= 0.25
Therefore, equation of the line passing through (200, 65) and slope 0.25 will be,
y - 65 = 0.25(x - 200)
y - 65 = 0.25x - 50
y = 0.25x + 15
(b). For y = $135 we have to calculate the number of cups of coffee produced.
135 = 0.25x + 15
0.25x = 135 - 15
0.25x = 120
x = 480 cups
Therefore, 480 cups of coffee will be produced.
I’m not understanding this question at all. WILL GIVE BRAINLY!! (6 is not the answer)
Answer:
-8.
Step-by-step explanation:
Substitute BC with the -4 and 2, as you were given those values to substitute with B and C. Multiply those two values. You get -8.
Select the appropriate response.
An isosceles triangle has vertices at (1,1) and (3, 3). Which of the following could be
the coordinates of the third vertex?
A. (2.1)
B. (3.2)
C. (4,1)
D. (5,1)
Choose
Answer:
D. (5,1)
Step-by-step explanation:
Because it is an isosceles triangle, the next point we choose must result in two sides with the same length. This means that either the two new sides are equal, or that one of the new sides is equal to the original side. If we wanted both of the new sides to be equal, they would have to be equal distance from the new point and one of the points of the original line. However, none of the options result in both new lines being the same length.
(2,1) would result in one new length being 1 unit long (2-1 x-coordinates) and the other being square root 5 (distance from point 2,1 to point 3,3 minus both coordinates and use Pythagoras). Points 3,2 and 4,1 yield the same result: Length 1=1 unit length 2=square root 5. Length 1 = 3 unit, length 2 = square root 5.
Therefore we are looking for a point which instead yields one length which is the same length as the original. The original length was 2^2 + 2^2 = c^2 = square root 8.
If we try the point 5,1 then we get two lengths of 4 and square root 8, it forms a isosceles triangle whose base line is parallel to the x-axis.
Sorry is my explanation was confusing, it's much easier to try and draw it on a grid and visualize it. Basically the overall idea is to test the side values you get by finding the distance between the points and going with the option which results in two sides with the same length.
Hope this helped!
Answer:
D. (5,1)
Step-by-step explanation: Because it is an isosceles triangle, the next point we choose must result in two sides with the same length. This means that either the two new sides are equal, or that one of the new sides is equal to the original side. If we wanted both of the new sides to be equal, they would have to be equal distance from the new point and one of the points of the original line. However, none of the options result in both new lines being the same length.
(2,1) would result in one new length being 1 unit long (2-1 x-coordinates) and the other being square root 5 (distance from point 2,1 to point 3,3 minus both coordinates and use Pythagoras). Points 3,2 and 4,1 yield the same result: Length 1=1 unit length 2=square root 5. Length 1 = 3 unit, length 2 = square root 5.
Therefore we are looking for a point which instead yields one length which is the same length as the original. The original length was 2^2 + 2^2 = c^2 = square root 8.
If we try the point 5,1 then we get two lengths of 4 and square root 8, it forms a isosceles triangle whose base line is parallel to the x-axis.
Sorry is my explanation was confusing, it's much easier to try and draw it on a grid and visualize it. Basically the overall idea is to test the side values you get by finding the distance between the points and going with the option which results in two sides with the same length.
Find
(1) a + b,
(2) 2a + 3b,
(3) |a|, and |a − b|.
a = 5i + j, b = i − 2j
Answer:
Step-by-step explanation:
this problem is on vector
given the vectors
a = 5i + j, and
b = i − 2j
1. summation of vector a + b
[tex]= (5i+j)+(i-2j)\\\\=5i+j+i-2j\\\\[/tex]
collect like terms
[tex]=5i+i+j-2j\\\\=6i-j\\\\[/tex]
2. 2a + 3b
[tex]= 2(5i+j)+3(i-2j)\\\\=10i+2j+3i-6j\\\\[/tex]
collecting like terms we have
[tex]=10i+2j+3i-6j\\\\=10i+3i+2j-6j\\\\=13i-4j[/tex]
(3) |a|, and |a − b|.
|a|= |5i+j|
[tex]=\sqrt{5^2+1^2} \\\\=\sqrt{25+1} \\\\=\sqrt{26} \\\\= 5.1[/tex]
also,
[tex]|a - b|= |(5i+j) -(i-2j)| \\\\ a-b= 5i+j -i+2j \\\\ a-b=5i-i+j+2j \\\\a-b= 4i+3j\\\\[/tex]
[tex]|a -b|=\sqrt{4^2+3^2} \\\\|a -b|=\sqrt{16+9} \\\\|a -b|=\sqrt{25} \\\\|a -b|=25[/tex]
The supplement of an angle is 42 degrees less than 3 times the complement of the angle. What is the measure of the angle?
Answer: 24°
Step-by-step explanation:
Given the following :
supplement of an angle is 42 degrees less than 3 times the complement of the angle
Let the angle = θ
Supplement of angle = 180° - θ
Complement of angle = 90° - θ
Supplement of angle is also said to be:
(3 × complement) - 42° = 3(90° - θ) - 42°
= 270° - 3θ - 42° = 228° - 3θ
Hence,
180° - θ = 228° - 3θ
Solve for θ
-θ + 3θ = 228° - 180°
2θ = 48°
θ = 48°/2
θ = 24°
Which pair of points has a slope of 4? Question 4 options: (0, 4), (4, 0) (3, 0), (–1, –1) (1, 4), (–1, 4) (0, –3), (1, 1)
Answer:
(0,-3) and (1,1)
Step-by-step explanation:
In order to have a slope of 4, the y coordinates need to differ by 4, and the x coordinates by 1. This is because slope is equal to rise/run. Rise being difference in y value and run difference in x.
In this pair of coordinates, the y coordinates differ in +4 (-3 and 1) and the x coordinate differs by 1 (0 and 1).
Therefore this is the pair of points with a slope of 4.
Hope this helped!
The pair of points that has a slope of 4 is the coordinate points (0, –3), (1, 1)
The formula for calculating the slope of a line passing through two points is expressed as:
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]
We need to get which of the coordinates will result in a slope of 4.
Using the coordinate points (0, –3), (1, 1)
[tex]m=\frac{1-(-3)}{1-0}\\m=\frac{1+3}{1}\\m=\frac{4}{1}\\m=4[/tex]
Hence the pair of points that has a slope of 4 is the coordinate points (0, –3), (1, 1)
Learn mroe here: https://brainly.com/question/23935638
Help me please!!!!!!!!!!!!!
Answer:
x = 12
Step-by-step explanation:
Given that AB = 2, AD = x, BC = 2, CD = -16 + 2x, since A, B, C, D are said to be collinear, therefore:
AB + BC + CD = AD
2 + 2 + (-16 + 2x) = x
Use this equation to solve for x
2 + 2 - 16 + 2x = x
-12 + 2x = x
Subtract 2x from both sides
-12 + 2x - 2x = x - 2x
-12 = -x
Divide both sides by -1
[tex] \frac{-12}{-1} = \frac{-x}{-1} [/tex]
12 = x (negative cancels negative)
x = 12
If f(x) = 2x + 3 for all values of x, what is the value of f(-3)? A 0 B -3 C 5 D 9
Answer:
[tex]f(-3)=-3[/tex]
Step-by-step explanation:
[tex]f(x)=2x+3[/tex]
[tex]f(-3)=2(-3)+3[/tex]
[tex]f(-3)=-6+3[/tex]
[tex]f(-3)=-3[/tex]
Hope this helps!
(Please mark Brainliest!)
Find the approximate side length of a square game board with an area of 155in2.
The side of a square is the square root of the area.
Side = sqrt(155)
Side = 12.45 inches. (Round answer as needed)
A rectangle has a length of L and a width, W, that is 4 less than 3 times the length. Which expression would give us the correct perimeter?
Answer:
Length is 4 less than 3
Step-by-step explanation:
I want to bring my grade up so if anyone knows tell me
Answer:
no
Step-by-step explanation:
You will have more time to do it, but no, try extra credit
Sorry mate hope this helps<3
3 pieces of same size can fill a cistern in 90 minutes. how long would 5 pipes takes to fill
Answer:
i think the answer would be 150. sorry if its wrong
Step-by-step explanation:
90/3*5=
30*5=
150
12. Determine whether the given number belongs
to each set.
te?
Whole
Numbers
Integers
Rational
Numbers
es
- 34
Answer:
The number -34 belongs to:
✔️Integers and
✔️Rational numbers
Step-by-step explanation:
-34 is an integer because it can written without a fractional or decimal part.
Rational numbers are said to numbers that can actually be expressed as a fraction with integers. They have no fractional part.
For example, −34 is a rational number because it can be written as - 34/1.
-34 can be expressed as -34/17, given an integer.
-34 is NOT a whole number because whole numbers are positive numbers.
if a point is located on the x-axis , what is the y coordinate?
0
Step-by-step explanation:
im only saying this because im assuming it is on the line of the axis
Answer:
0
both x and y are zero so the y axis is 0 then the x axis is 0
Bill has a container that is shaped like a cube. He uses 125 cubes with a side length of 1 inch to fill the container completely. What is the edge length of the container? *****Hint: 1 inch cubes to fill a container is the volume of the cube Please answer quickly!!! Thank you.
Answer:
5 inches
Step-by-step explanation:
Given
Length of a cube = 1 inch
Required
Determine the edge length of the cube
If the container can take 125 cubes, then that's the volume
So:
[tex]Volume = 125in^3[/tex]
Volume of a cube is calculated as thus;
[tex]Volume = Length^3[/tex]
This gives;
[tex]Length^3 = 125[/tex]
Take cube root of both sides
[tex]Length = \sqrt[3]{125}[/tex]
[tex]Length = 5[/tex]
Hence, the length is 5 inches
what is the distance between -11 and 8 on the number line?
Answer:
= 3
Step-by-step explanation:
| 11-8 |= | 3 |= 3
A triangle has a base of 3 feet and an area of 15 square feet. Find the triangle's height
Answer:
10 ft
Step-by-step explanation:
The formula for the area of a triangle can be used. Put the known values into the formula and solve for the unknown.
A = (1/2)bh
15 = (1/2)(3)h
h = 15/1.5 = 10
The triangle's height is 10 feet.
Answer:
10
Step-by-step explanation:
A=1/2*b*h
15=1/2*3*h
15=3/2*h
15=3/2h
h=15/(3/2)
h=(15/1)(2/3)
h=30/3
simplify
h=10
given g(x)=x^2 and h(x)= x-3 find (g ∘ h)(x)
Answer:
(g ∘ h)(x) = x² - 6x + 9Step-by-step explanation:
g(x) = x²
h(x) = x - 3
To find (g ∘ h)(x) substitute h(x) into g(x) that's for every x in g(x) replace it with h(x)
That's
(g ∘ h)(x) = ( x - 3)²
= x² - 3x - 3x + 9
We have the final answer as
(g ∘ h)(x) = x² - 6x + 9Hope this helps you
Solve for x 40+5x>95-4x
Steps to solve:
40 + 5x > 95 - 4x
~Subtract 40 to both sides
5x > 55 - 4x
~Add 4x to both sides
9x > 55
~Divide 9 to both sides
x > 55/9
Best of Luck!
PLZ HELP ASAP WILL MARK BRAINIEST
Which graph represents the inequality:
x+6<-9??
I believe the answer is A
Find the distance from the point (0, 4, 3) to the plane 5x +1y +2z
Answer:
distance =
[tex] \sqrt{ \frac{10}{3} } [/tex]
Step-by-step explanation:
Without going through and deriving this (my blackboard doesn't have space and a textbook, teacher, or online tutorial is probably better for that), the equation for the distance from some point on the plane to some point in space is as follows:
[tex]distance = \frac{ax + by + cz - d }{ \sqrt{ {a}^{2} + {b}^{2} + {c}^{2} } } [/tex]
•Note that the d in the equation should actually be D but Brainly doesn't allow me to do uppercase letters on mobile it seems... Anyway, d in the equation represents the value which the equation of the plane is equal to. You only gave the plane equation so I assumed d=0 in my calculations.
•x, y, and z all come from the point which you want to find the distance to. So (x,y,z)=(0,4,3) here.
•a, b, and c all come from the components of the vector normal to the surface. For planes, it simply somes to be the coefficients in front of each part. So (a,b,c)=(5,1,2) here.
With that you just need to plug the information in and simplify for your answer. My work is in the attachment, comment with questions or if anything seems off.