Which equation describes the function?
Will give brainliest
Answer:
[tex]y = - \frac{7}{3} x + 4[/tex]
Step-by-step explanation:
I'm going to use the process of elimination to get rid of the equations. The equation for slope is y=mx+b with b being the y-intercept. As you can see the y-intercept in this graph is 4 which removes the third equation as a possible answer. The slope is moving from left to right in a downwards direction which means it is a negative slope. The only answer with a negative slope is b therfore it is your answer.
im doing my i-ready but ion know the answer
Can someone help me out the first one, please! Also ignored what I wrote in the paper.
Please help ASAP thank you!
Answer:
y < 3
Step-by-step explanation:
If you put the equation on a graphing calculator it shows that.
Please give me BRAINLIEST and THANKS <(￣︶￣)>
10.
Complete.
y^2 + 15y + 56 = (y + 7)(y + )
A. 8
B. –7
C. –8
D. 7
Answer:
I would go with letter B. -7
Step-by-step explanation:
The two factors of a quadratic equation can be multiplied to form the original equation. Let the missing term be a:
y² + 15y + 56 = (y + 7)(y + a)
y² + 15y + 56 = y² + (7 + a)y + 7a
...............................................................................................................................................
Step by Step Solution
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Reformatting the input :
Changes made to your input should not affect the solution:
Step by step solution :
STEP 1 :
Trying to factor by splitting the middle term
1.1 Factoring y2+14y+49
The first term is, y2 its coefficient is 1 .
The middle term is, +14y its coefficient is 14 .
The last term, "the constant", is +49
Step-1 : Multiply the coefficient of the first term by the constant 1 • 49 = 49
Step-2 : Find two factors of 49 whose sum equals the coefficient of the middle term, which is 14 .
Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, 7 and 7
y2 + 7y + 7y + 49
Step-4 : Add up the first 2 terms, pulling out like factors :
y • (y+7)
Add up the last 2 terms, pulling out common factors :
7 • (y+7)
Step-5 : Add up the four terms of step 4 :
(y+7) • (y+7)
The solution is:
y = -7
The solution is:
y = -14 / 2 = -7
USING SIMILAR TRIANGLES IN INDIRECT MEASUREMENT If the shadow of a tree is 14 m long and the shadow of a person who is 1.8 m tall is 4 m long, how tall is the tree? Which of the following proportions could not be used to solve the problem? 14/1.8 = x/4 x/1.8 = 14/4 x/14 = 1.8/4
Answer:
14/1.8 = x/4
Step-by-step explanation:
Using similar triangles,
height of man/length of man's shadow = height of tree/length of tree's shadow
1.8/4 = x/14
x/14 = 1.8/4
If we cross-multiply, we have
1.8 × 14 = x × 4
dividing both sides by 4 and 1.8,we have
14/4 = x/1.8
x/1.8 = 14/4
So, the two expressions we have are
x/14 = 1.8/4 and x/1.8 = 14/4.
So, the answer is 14/1.8 = x/4 since the product 1.8 × 14 = x × 4 cannot be expressed in the given ratio.
Find the axis of symmetry and the vertex of the graph of f (x) = x^2 - 16 + 55
Hi there!
»»————- ★ ————-««
I believe your answer is:
Vertex: (0, 39)
Axis of Symmetry: x = 0
»»————- ★ ————-««
Here’s why:
I have graphed the equation on a program. When graphed, the the lowest point lies on the point (0, 39). This makes (0, 39) the vertex.⸻⸻⸻⸻
The axis of symmetry is a vertical line that intercepts the vertex. The vertical line makes the parabola seem 'symmetrical'. The 'x' value of the vertex is usually the line of symmetry as well.⸻⸻⸻⸻
The 'x' value of the vertex is '0', so the axis of symmetry is [tex]x = 0[/tex].
⸻⸻⸻⸻
See the graph that I have attached.
⸻⸻⸻⸻
»»————- ★ ————-««
Hope this helps you. I apologize if it’s incorrect.
Answer:
For equation:
[tex]f(x)=x^2-16x+55[/tex]
Vertex: [tex](8,-9)[/tex]
Axis of symmetry, ([tex]x=8[/tex])
For equation,
[tex]f(x)=x^2-16+55[/tex]
Vertex:[tex](0,39)[/tex]
Axis of symmetry, ([tex]x=0[/tex])
Step-by-step explanation:
The x-coordinate of the vertex of a parabola indicates the line of symmetry of the parabola. Thus, to solve this problem, one must find the vertex of the parabola. This can be done through a process called completing the square.
Completing the square is a process that converts a quadratic equation in standard form into vertex form. The first step is to group the linear and quadratic terms. Then factor out the coefficient of the quadratic term. After doing so, add a term to make the group a perfect square trinomial, then balance the equation.
Possibility 1
If the given equation is the following,
[tex]f(x)=x^2-16x+55[/tex]
Group,
[tex]=(x^2-16x)+55[/tex]
There is no quadratic term, thus, complete the square,
[tex]=(x^2-16x+64)+55-64[/tex]
Simplify,
[tex]=(x-8)^2-9[/tex]
Vertex: [tex](8,-9)[/tex]
Axis of symmetry, ([tex]x=8[/tex])
Possibility 2
If the given equation is the following,
[tex]f(x)=x^2-16+55[/tex]
Combine like terms,
[tex]=x^2+39[/tex]
Put in vertex form,
[tex]=(x)^2+39[/tex]
Vertex:[tex](0,39)[/tex]
Axis of symmetry, ([tex]x=0[/tex])
What is an equation of the line that passes through the points (-2,-6) and (6,8)?
Answer:
y=7/4x–5/2
Step-by-step explanation:
You must find the slope first, let it be m
[tex]m = \frac{y2 - y1}{x2 - x1} \\ = \frac{8 - ( - 6)}{6 - ( - 2)} \\ = \frac{14}{8} \\ = \frac{7}{4} [/tex]
then insert tu the formula y=mx+c to find the c (c is the intercept of y axis) choose any point that you want. i use (6,8)
[tex]y = mx + c \\ 8 = \frac{7}{4} (6) + c \\ c = - \frac{5}{2} [/tex]
so the equation is
[tex]y = \frac{7}{4} x - \frac{5}{2} [/tex]
PLEASE ANSWER QUICKLY WILL GIVE BRAINLIEST IF CORRECT
Find the circumference of a circle with a diameter of 400 cm. Use 3.14 for π.
A.
628 cm
B.
3.14 cm
C.
2512 cm
D.
1256 cm
Answer:
D. 1256 cm
Step-by-step explanation:
Divide the diameter by 2 to get the radius so 400/2 = 200
C = 2 π r = 2 · π · 200 = 1256.637
Solve the equation.
$2v+7=3$
$v=$
plz help me understand this question thankyou
Answer:
The mistakes were on points C and D
Step-by-step explanation:
Point C was graphed on (5,8) when it's supposed to be plotted on (5,7). Point D was on (-3,-4) but was supposed to be on (-4,-3?
Answer:
The mistakes are Point C and D
Here is a equation find x. (Please help this is due in 30 minutes!!)
-3x+7=1
Answer:
the answer is 2
-3x+7=1 x=2
Can help me with this?
Answer:I’m sorry this is hard I don’t think I have the right answer chose C
Step-by-step explanation:
Please help ASAP
1.
Three times a number equals 40 more than five times the number what is the number
2.
A number equals four less than three times the number what is the number?
Answer:
Step-by-step explanation:
What is the difference between the definitions for ray and line segment?
Only the definition of ray relies on an understanding of two directions.
Only the definition of line segment relies on an understanding of line.
Only the definition of ray depends on an understanding of infinite.
Only the definition of line segment depends on an understanding of point.
Answer:
Only the definition of the line segment depends on an understanding of point.
Step-by-step explanation:
Answer:
Maybe C. I'm not for sure.
A ray has one endpoint and the other end goes in infinitely. While a line segment has two endpoints
Step-by-step explanation:
What is the slope of the line?
Answer:
7/4
Step-by-step explanation:
the slope rises 7 units then goes to the right of 4 units
The slope of a line is 1, and the y-intercept is -1. What is the equation of the line written in slope-intercept form?
Answer:
y = x - 1
General Formulas and Concepts:
Algebra I
Slope-Intercept Form: y = mx + b
m - slope b - y-interceptStep-by-step explanation:
Step 1: Define
Identify variables
Slope m = 1
y-intercept b = -1
Step 2: Write Equation
Substitute in general form: y = 1x + -1Simplify: y = x - 1What is Limit of StartFraction x cubed minus 1 Over x minus 1 EndFraction as x approaches 1? 0 1 3 DNE
Answer:
D.
(DNE)
Step-by-step explanation:
when you plug in 1 to the denominator, 1 minus 1 becomes 0. a fraction with 0 as the denominator does not exist.
The limit of the function f(x)=[tex]x^{3}-1[/tex]/x-1 as x approaches 1 is 3.
What is limit?Limit is the value that a function approaches as the value of variable approaches some value. They are essential to calculas and mathematical analysis and are use to define continuity , derivatives and integrals. It can change value of function at different values of x.
How to find limit?We have been given a function f(x)=[tex]x^{3}-1[/tex]/x-1 and we have to find the limit of function.
F(x)=[tex]x^{3} -1[/tex] /(x-1) [[tex]x^{3} -y^{3} =x^{2} +y^{2} +xy[/tex]]
[tex]\lim_{x \to \0}x^{3}-1/x-1[/tex]
[tex]\lim_{x \to \0} (x-1)(x^{2} +1+x)[/tex]/x-1
[tex]\lim_{x \to \0} x^{2} +x+1[/tex]
change limit by putting x=1-h
[tex]\lim_{h \to \0} (1-h)^{2} +1+1-h[/tex]
Put the value of h=0.
=1+1+1
=3
Hence the limit of the function [tex]x^{3}-1/x-1[/tex] is 3.
Learn more about limits at https://brainly.com/question/27517662
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What is a Translation?
Answer:
The displacement of a figure or a shape from one place to another is called translation, which means a figure can be moved upward, downward, left, right, or anywhere in the coordinate system using translation. While translating, all the points will shift by the same number of units.
mark me brainliestt :))
Please help brainiest to correct answer pls show work if you can
Answer:
x= 5
the length = 13 meters
the width = 7 meters
Step-by-step explanation:
(2x+3)(x+2)=91
2x²+7x+6=91
2x²+7x-85=0
(2x+17)(x-5) =0
x=-17/2 or x = 5
the length = 2(5)+3= 13 meters
the width = 5+2 = 7 meters
hello! i'll mark the best answer brainliest (:
Tatiana opens a bank account that pays interest compounded annually. Which of the following are reasonable interpretations of the expression 500(1.0325)^t in this context?
Select all that apply.
A. The account earns about 1.03% interest each year.
B. The account earns 3.25% interest each year.
C. The account earns 5% interest each year.
D. Tatiana's starting balance was $500.
E. After 1 year the account will be worth $500.
I believe the answers are A. The account earns about 1.03% interest each year. and D. Tatiana's starting balance was $500.
I hope this helps
Answer:
A and E
Step-by-step explanation:
What can the answer be?
Answer:
35
Step-by-step explanation:
Trust me. The two triangles are equivalent, so 90+55=145
180-145=35
.
Larry is starting his own lawn service company. He has initial startup costs totaling $300, plus ongoing operating expenses. The function representing Larry's expenses and the function representing Larry's income for lawn services are shown in the graph below.
Approximately how many lawns will Larry have to mow before he starts making a profit?
Anwer Choises:
Larry must mow approximately 300 lawns before he starts making a profit.
Larry must mow approximately 350 lawns before he starts making a profit.
Larry must mow approximately 25 lawns before he starts making a profit.
Larry will start making a profit when he mows his first lawn.
Answer:
Larry must mow approximately 25 lawns before he starts making a profit
Step-by-step explanation:
A person's blood type is denoted with the letters A, B, and O, and the symbols + and - . The blood type A+ is read as A positive. The blood type B - is read as B negative. Use the data to write a ratio for the comparison in 3 different ways.
Answer:
(a) O+ to A+
[tex]O+:A+=90:45[/tex]
[tex]O+:A+=18:9[/tex]
[tex]O+:A+=2:1[/tex]
(b) AB- : AB+
[tex]AB-:AB+ = 6:4[/tex]
[tex]AB-:AB+ = 3:2[/tex]
[tex]AB-:AB+ = 12:8[/tex]
(c): B+ to total
[tex]B+ : Total = 20 : 195[/tex]
[tex]B+ : Total = 4 : 39[/tex]
[tex]B+ : Total = 40 : 390[/tex]
Step-by-step explanation:
Given
[tex]A+ = 45[/tex] [tex]B+ = 20[/tex] [tex]AB+ =6[/tex] [tex]O+=90[/tex]
[tex]A-=21[/tex] [tex]B-=0[/tex] [tex]AB-=4[/tex] [tex]O-=9[/tex]
[tex]Total = 195[/tex]
See attachment
Required
Solving (a): O+ to A+
We have:
[tex]A+ = 45[/tex]
[tex]O+=90[/tex]
So, the ratio is:
[tex]O+:A+=90:45[/tex] ---- first comparison
Divide by 5
[tex]O+:A+=90/5:45/5[/tex]
[tex]O+:A+=18:9[/tex] ---- Second comparison
Divide by 45
[tex]O+:A+=90/45:45/45[/tex]
[tex]O+:A+=2:1[/tex] ---- Third comparison
Solving (b): AB- to AB+
We have:
[tex]AB+ =6[/tex]
[tex]AB-=4[/tex]
So, the ratio is:
[tex]AB-:AB+ = 6:4[/tex] ---- first comparison
Divide by 2
[tex]AB-:AB+ = 6/2:4/2[/tex]
[tex]AB-:AB+ = 3:2[/tex] ---- Second comparison
Multiply by 2
[tex]AB-:AB+ = 6*2:4*2[/tex]
[tex]AB-:AB+ = 12:8[/tex] ---- Third comparison
Solving (c): B+ to total
We have:
[tex]B+ = 20[/tex]
[tex]Total = 195[/tex]
So, the ratio is:
[tex]B+ : Total = 20 : 195[/tex] ---- first comparison
Divide by 5
[tex]B+ : Total = 20/5 : 195/5[/tex]
[tex]B+ : Total = 4 : 39[/tex] ---- Second comparison
Multiply by 2
[tex]B+ : Total = 20*2 : 195*2[/tex]
[tex]B+ : Total = 40 : 390[/tex] ---- Third comparison
Math Tutor Pay: $11.44 per hour
they work 13 hours
how much do they get paid in a-
per week
per month
per year
Answer:
Per week: $1041.04Per month: $4610.32Per year: 55323.84Answer:
1041$/1W(M-Sun)
892$/1W(M-SAT)
744$/1W(M-Fri)
Step-by-step explanation:
Go to sleep stoo naughty
A soda company spends $1200 per day on business expenses plus $1.10 per bottle.
They charge $2.50 for each bottle of soda they produce. How many bottles of soda
must the company sell in one day in order to equal its daily costs?
Answer: Hi
Step-by-step explanation:
Cost Price per bottle : $1.10
Selling price per bottle : $2.50
2.50 - 1.10 = 1.40
$1200=1.40B
B=858
The company must sell 858 Soda´s in order to equal it daily cost.
Hope this help. Be safe
PLEASE HELP ME IM BEGGINGG
A spinner consists of eight equal regions as shown.
What is the probability that the arrow will land on a region lettered A and
then spun again and land on D?
Answer:
Pro of landing on A = 3÷8
Step-by-step explanation:
Pro of Landing on D =1÷8
Pro of all ={3÷8}+{1÷8}=0.5
Since the answers are on percentage you multiply by hundred
Therefore your answer will be 0.5 ×100
There are eight boys and eight girls in a
class. The teacher randomly selects one
student to answer a question. Later, the
teacher randomly selects a different student
to answer another question. The first
student is a boy and the second student is a
girl.
Answer:
Independent events - Random selection of one
student - Selection of one boy to answer first question
Dependent Event - Selection of a girl student
Probability = 13.33 %
Step-by-step explanation:
The complete question is
Determine whether the scenario involves independent or dependent events. Then find the probability
There are eight boys and eight girls in a
class. The teacher randomly selects one
student to answer a question. Later, the
teacher randomly selects a different student
to answer another question. The first
student is a boy and the second student is a
girl.
Solution
Independent events - Random selection of one
student - Selection of one boy to answer first question
Dependent Event - Selection of a girl student
Probability
8C1 + 8C1/16C2
(8+8) /(8*15)
13.33 %
Which of the expressions below are equivalent? 8x - 4 4x 4(2x - 1)
Need help with school please
Answer:
47+16+ x =180
x =180- 63
x= 117