Answer:
The recursive rule for the sequence is a[tex]_{1}[/tex] = 75; a[tex]_{n}[/tex] = a[tex]_{n-1}[/tex] + 25
Step-by-step explanation:
the recursive rule of an arithmetic function is a[tex]_{1}[/tex] = first term; a[tex]_{n}[/tex]= a[tex]_{n-1}[/tex] + d, where
a[tex]_{1}[/tex] is the first terma[tex]_{n-1}[/tex] is the nth termd is the common difference between each 2 consecutive terms∵ The given is 75, 100, 125, 150, .......
∵ 100 - 75 = 25
∵ 125 - 100 = 25
∵ 150 - 125 = 25
∴ The common difference is 25
∴ d = 25
∵ The first term is 75
∴ a[tex]_{1}[/tex] = 75
→ Substutute the values of a1 and d in the formula above
∴ The recursive rule for the sequence is a[tex]_{1}[/tex] = 75; a[tex]_{n}[/tex] = a[tex]_{n-1}[/tex] + 25
COOKING The instructions on a box of chicken patties state that one patty should be cooked for 2.5 minutes
in the microwave. If more than one patty is cooked, an additional 1.5 minutes should be added per patty.
Write an equation in slope-intercept form to model the cooking time in minutes, y, for x patties.
Answer:
y=1.5x+2.5 ,
y=32x+52 ,
y=32x+2.5 ,
or
y=1.5x+52
The equation in slope-intercept form to model the cooking time in minutes, y, for x patties is y = (3/2)x + 1.
What are lines and their slopes?We know lines have various types of equations, the general type is
Ax + By + c = 0, and the equation of a line in slope-intercept form is
y = mx + b.
Where slope = m and b = y-intercept.
the slope is the rate of change of the y-axis with respect to the x-axis and the y-intercept is the (0,b) where the line intersects the y-axis at x = 0.
Given, On a box of chicken patties state that one patty should be cooked for 2.5 minutes in the microwave.
If more than one patty is cooked, an additional 1.5 minutes should be added per patty.
So, The equation in slope-intercept form to model the cooking time in minutes, y, for x patties.
If we write this as y = 1.5x + 2.5 and put x = 0 , y = 2.5 which is not satisfying the given statement.
∴ y = 1.5x + (2.5 - 1.5). (the additional patty cooking time).
y = 1.5x + 1.
y = (3/2)x + 1.
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You rotate triangle ABC, with vertices A(-3, 1), B(-2, 2), and C(-3, 4), 90° counterclockwise about the origin to form triangle A′B′C′. Match each vertex of triangle A′B′C′ to its coordinates.
Answer:
The new vertices will be: A'(-1,-3), B'(-2,-2) and C'(-4,-3)
Step-by-step explanation:
Rotation about the origin depends on the degrees the point is being rotated and direction of rotation.
Let (x,y) be a point on the xy-coordinate plane,
When this point will be rotated about origin 90 degrees counter clockwise, the coordinates of the point become (-y,x) which means that the coordinates will be exchanged and y will be negated.
Given vertices of triangle are:
A(-3, 1), B(-2, 2), and C(-3, 4)
After rotation the new points will be:
A(-3, 1) => A'(-1,-3)
B(-2,2) => B'(-2,-2)
C(-3,4) => C'(-4,-3)
Hence,
The new vertices will be: A'(-1,-3), B'(-2,-2) and C'(-4,-3)
Which ordered pair can be removed so that the resulting graph represents a function?
(–2, 2)
(1, 3)
(5, –4)
(–4, –4)
Answer:
(1,3)
Step-by-step explanation:
If\ the\ polynomial\ p\left(x\right)\ =\ 2x^3\ +\ ax^{2\ }-\ 7x\ +b,\ p\left(1\right)\ =\ 3\ and\ p\left(2\right)\ =\ 19,\ find\ a\ \&\ b
pls tell fast
Answer:
Value of a =3
Value of b =5
Step-by-step explanation:
[tex]If\ the\ polynomial\ p\left(x\right)\ =\ 2x^3\ +\ ax^{2\ }-\ 7x\ +b,\ p\left(1\right)\ =\ 3\ and\ p\left(2\right)\ =\ 19,\ find\ a\ \&\ b[/tex]
We are given p(1)=3 and p(2)=19
Putting x =1 to find p(1)
[tex]p\left(x\right)\ =\ 2x^3\ +\ ax^{2\ }-\ 7x\ +b\\p(1)=2(1)^3+a(1)^2-7(1)+b\\We \ know \ p(1)=3\\3=2+a-7+b\\3=-5+a+b\\a+b=3+5\\a+b=8[/tex]
Now putting x=2 as p(2)=19
[tex]p\left(x\right)\ =\ 2x^3\ +\ ax^{2\ }-\ 7x\ +b\\p(2)=2(2)^3+a(2)^2-7(2)+b\\We \ know \ p(2)=19\\19=2(8)+4a-14+b\\19=16+4a-14+b\\4a+b=19-16+14\\4a+b=17[/tex]
Solving these equations to find values of a and b
[tex]a+b=8---eq(1)\\4a+b=17---eq(2)[/tex]
Subtract both equations
[tex]a+b=8\\4a+b=17\\-\ \ \ - \ \ \ -\\------\\-3a=-9\\a=\frac{-9}{-3}\\a=3[/tex]
So, value of a =3
Now finding value of b bu putting value of a in equation 1
[tex]a+b=8\\3+b=8\\b=8-3\\b=5[/tex]
So, Value of b =5
how many whole numbers are there from 24 to 721
Answer:
697
Step-by-step explanation:
Answer:
698
Step-by-step explanation:
(721-24)+1= 698
someone help me Please
Answer:
16
Step-by-step explanation:
3+5×5-9÷3×4
3+25-3×4
3+25-12
3+13
16
NEED HELP ASAP WILL GIVE BRAIN
Review the diagram.
On a coordinate plane, a vector labeled 120 meters forms angle 25 degrees with the x-axis. It goes to point mirror 1. Another vector labeled 90 meters goes from point mirror 1 to mirror 2. It forms angle 20 degrees with a horizontal line. Point mirror 2 goes to (0, 0).
A laser beam is aimed 25° from horizontal at a mirror 120 m away. The beam bounces off the mirror and continues for an additional 90 m at 20° above horizontal until it hits a target, mirror 2. What is the distance between the origination point and the target?
approximately 85 m
approximately 122 m
approximately 174 m
approximately 194 m
Answer:
Vectors are usually described in terms of their components in a coordinate system. Even in everyday life we naturally invoke the concept of orthogonal projections in a rectangular coordinate system. For example, if you ask someone for directions to a particular location, you will more likely be told to go 40 km east and 30 km north than 50 km in the direction 37° north of east.
In a rectangular (Cartesian) xy-coordinate system in a plane, a point in a plane is described by a pair of coordinates (x, y). In a similar fashion, a vector
→
A
in a plane is described by a pair of its vector coordinates. The x-coordinate of vector
→
A
is called its x-component and the y-coordinate of vector
→
A
is called its y-component. The vector x-component is a vector denoted by
→
A
x. The vector y-component is a vector denoted by
→
A
y. In the Cartesian system, the x and y vector components of a vector are the orthogonal projections of this vector onto the x– and y-axes, respectively. In this way, following the parallelogram rule for vector addition, each vector on a Cartesian plane can be expressed as the vector sum of its vector components:
Step-by-step explanation:
Answer:
approximately 85 m
Step-by-step explanation:
use the law of cosines
x²=120²+90²-2(120)(90)cos(45)
*120 & 90 are given values
*45 is from 25+20; bcuz of alternate interior angles, the other angle from mirror 1 is 25 degrees, making the total 45 degrees
x=√120²+90²-2(120)(90)cos(45)
x=85, the distance btwn origin point and mirror 2
Timothy has some coins in a jar. He has 6 pennies,8 nickels,10 dimes, and four quarters. What is the ratio of the number of nickels to the number of dimes
Answer:
8:10
Step-by-step explanation:
If Timothy has some coins in a jar. He has 6 pennies,8 nickels,10 dimes, and four quarters. Then 4:5 is the ratio of the number of nickels to the number of dimes
What is Ratio?A ratio is an ordered pair of numbers a and b, written a / b where b does not equal 0.
Given,
Timothy has some coins in a jar.
The number of Pennies = 6
The number of Nickels = 8
The number of dimes =10
The number of quarters =4
We need to find the ratio of the number of nickels to the number of dimes
8/10
4/5
Hence 4:5 is the ratio of the number of nickels to the number of dimes
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Deon earns $91 washing 7 dogs. At this rate, how many dogs did Deon wash to earn $117?
Given: x + 2y = -6.
Solve for y.
A.) y=x-6/2
B.)y=-x+6/2
C.)y=-x-6/2
Answer:
a
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
Subtract x from each side so you get
2y = -x-6
Then divide them by 2 to get
y = -x-6/2
Can I have some help
Answer:
c
Step-by-step explanation:
Answer:
c is the answer and that's a good tung twister math problem
can someone please help me ASAP
Answer:
42 degrees
Step-by-step explanation:
Answer:
x=42°
Step-by-step explanation:
In any triangle, when all three angles are added together, their sum will always be 180°:
∠1+∠2+∠3=180
Insert any known values:
[tex]29+109+x=180[/tex]
Simplify the addition:
[tex]138+x=180[/tex]
Use inverse operations to find angle three. Subtract 138 from both sides:
[tex]138-138+x=180-138\\\\x=42[/tex]
Therefore, the unknown angle is 42°.
:Done
So I have the answer but ..
⚠️⚠️ HOW AM I SUPPOSED TO WRITE THE RULES ⚠️⚠️
You can use the photo as an example lol
Help!
Crater Lake in Oregon in shaped like a circle with a diameter of about 5.5 miles. What is the area of the surface of crater lake?
Answer: 23.74625 miles
What is the solution to -2( 1 - 4x ) = 3x + 8
Answer:
x = 2
Step-by-step explanation:
Given
- 2 (1 - 4x) = 3x + 8 ( distribute parenthesis on left side )
- 2 + 8x = 3x + 8 ( subtract 3x from both sides )
- 2 + 5x = 8 ( add 2 to both sides )
5x = 10 ( divide both sides by 5 )
x = 2
WHAT IS HELP PLEASE
6x2 -2x3 +x4 =?
DONT ANSWER TO GET QUICK POINTS
Answer:
i told you in the comment it equals 7
Step-by-step explanation:
please help me will give brainliest
Answer:
BEcause the sign is a greater than its gonna have a hollow circle. greater than or equal too would have a filled in circle. To solve, divide by -1/3 each side to find the answer
-4>-4/3s
-4/ -4/3>2
-4/-4/3=3
3>s
Therefore
3>S
So you are going to put a hollow circle at 3 and draw an arrow going to the left of 3.
Step-by-step explanation:
Answer:
s>3
Step-by-step explanation:
place it on 3, it may be an open circle. :)
You’re welcome :)
A dressmaker needs to cut 9-inch pieces of ribbon from rolls of ribbon that are 9 feet in length. How many 9-inch pieces can the dressmaker cut from 15 of these rolls of ribbon? Before you try that problem, answer the question below. How many inches of ribbon does the dressmaker have, in total?
Answer:
She can cut 180 (9 - inch) pieces
Step-by-step explanation:
A dressmaker needs to cut 9-inch pieces of ribbon from rolls of ribbon that are 9 feet in length. How many 9-inch pieces can the dressmaker cut from 15 of these rolls of ribbon? Before you try that problem, answer the question below.
Step 1
How many inches of ribbon does the dressmaker have, in total?
1 roll of ribbon = 9 feet
15 rolls of ribbon = x feet
x = 15 roll × 9 feet
x = 135 feet
Converting from Feet to inches
1 foot = 12 inches
135 feet = x inches
Cross Multiply
x = 135 × 12 inches
x = 1620 inches
The dress maker cuts 9 inches each
How many 9-inch pieces can the dressmaker cut from 15 of these rolls of ribbon?
15 rolls of ribbon = 1620 inches of ribbons
Hence: = 1620 inches/9
= 180 pieces
She can cut 180 (9 - inch) pieces
The temperature has been dropping 2 degrees every hour and the current temperature is -15°F. How many hours ago was the temperature 0°F?
Answer: 6 1/2
Step-by-step explanation:
six and 1 half of a hour
Sven has 11 more than twice as many customers as when he started selling
newspapers. He now has 73 customers. How many customers did he have
when he started?
Answer:
31
Step-by-step explanation:
73 - 11 = 62
62 / 2 = 31
In the figure shown, what additional information is needed to show that △ABC≅△DEF by SSS?
Enter your answers in alphabetical order.
Answer:
Step-by-step explanation:
They're asking for what other information is needed.
We were given triangle ABC is congruent to triangle DEF. We know for certain line AB and line DC are congruent to each other as well as lines BC and EF.
The additional information we need to know is if line AC is congruent to line DF to absolutely be sure.
Remember SSS by definition is: Triangles are congruent if all three sides in one triangle are congruent to the corresponding sides in the other. If all three sides in one triangle are the same length as the corresponding sides in the other, then the triangles are congruent.
SSS congruence of triangles is proved when all three sides of considered two triangles are congruent(that is, of equal measures).
Thus, the needed answer is:
Line segment DF is congruent to line segment AC
or [tex]\overline{DF} \cong \overline{AC}[/tex]
What is SSS congruence of triangles?If two considered triangles have corresponding side pairs congruent(for all three sides), then both the triangles are congruent. This proof of congruence is triangle is done by SSS congruence of triangles (Side Side Side congruence)
Since it is given that the sides CB and FE are congruent,
and since it is given that sides AB and DE are congruent too,
thus, for SSS congruence of both considered triangles, we need the third side pair of the given triangles to be congruent too.
Thus, we need the line segment DF congruent to the line segment AC.
We can write it symbolically as:
[tex]\overline{DF} \cong \overline{AC}[/tex] (remember that order doesn't matter here. You could've written [tex]\overline{AC} \cong \overline{DF}[/tex] too.)
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A van travels 154 km in 1/3/4 hours (one whole number three over four). Find its speed in km/h
Answer:
88 hrs
Step-by-step explanation:
1/3/4 = 7/4hr ; 7/4 = 1.75hr (the number of hours used to travel for 154km)
154/1.75 = 88 (the number of km van travels per hour)
6y+29 what's the constant?
Answer:
29
General Formulas and Concepts:
Algebra I
Terms, Constants, Leading Coefficients, VariablesStep-by-step explanation:
Any number multiplying to a variable will be a term, but not a constant.
A constant is a term, just one without variables.
We are given 6y + 29. 6y would be a term and 29 would be another term. Since 29 has no variables, it will be the constant.
So this guy has been asking me for a while to go eat with him. (I would but my parents are veryyy strict) I was like I have school Tuesday and during my lunch we should go. Andd I'm scared... Idkkk if I should go or not helpppp
Which was a challenge for the earliest permanent settlements?
Flooding allowed villagers to expand their property.
Fire risk increased due to the closeness of buildings.
Disease was a threat because of the close proximity to the rivers.
Droughts were a challenge that villagers overcame with technology..
Answer:
B
Step-by-step explanation:
Answer:
b
Step-by-step explanation:
If a person who weighs 70 kilograms has a brain that weighs 1.4 kilograms, what percent of the persons body weight is brain
Answer:
the answer would be around 1.5 to two percent
Step-by-step explanation:
Which division problem would have an estimated quotient of 15 if the divisor and dividend were rounded to the nearest whole number? What is the right option?
Answer:
90.24 divided by 6.3
Step-by-step explanation:
For reaching to the answer, we have to test each of the options given
The first option says that the divisor and dividend is 90.24 and dividend is 6.3
Now if we rounded it
So it would be 90 and 6
So, the quotient is
= 90 ÷ 6
= 15
Hence, the first option is correct
i.e. 90.24 divided by 6.3
And, all the other options are wrong
In the diagram below, line segment AB has endpoints at A(-2,-6) and B (3,-1). Give the coordinates of line segment A'B' after a counterclockwise rotation of 90° about the origin.
Answer:
A’ (6,-2)
B’ (1,3)
Step-by-step explanation:
Here, we want to give the coordinates after a counterclockwise rotation of 90 degrees
Given a point with coordinates (x,y)
A counterclockwise rotation at 90 degrees to the origin will yield the coordinates (-y,x)
So A (-2,-6) will be A’ (6,-2) while B (3,-1) will be B’ (1,3)
The ratio of the number of boys to the number of girls in a dance club is 5 : 6. After 6 more boys join the club, the ratio became 13 : 12. How many people were in the club at the start?
44
Step-by-step explanation:
let boys be x and girls be y
x/y=5/6
x=5y/6....(1)
if 6 boys join the club that will be x+6
Therefore:
(x+6)/y=13/12
13y=12x+72
13y-12x=72
Recall x=5y/6
Therefore:
13y-12(5y/6)=72
13y-(2*5y)=72
13y-10y=72
3y=72
y=24 people
Therefore:
x=(5*24)/6
x=20 people
Therefore people in the club before are 20+24=44
Which of the following values are solutions to the inequality 9 > - 3 - 4x
Answer:
the answer is 12
Step-by-step explanation:
Answer:
x>−3
Step-by-step explanation: