Mathematics High School
Answers
Answer 1
The answer would be -8 1/6.
Related Questions
If it is given that log2 a= 5 , write the value of a as a power of 2
Answers
In other words, write it in exponential form.
To write a as a power of 2, your log form should be written this way: log_2 (5) = a.
We can then then write it in exponential form showing a as a power of 2.
Here it is:
2^(a) = 5
Line c passes through points (9, 10) and (1, 3). Line d is perpendicular to c. What is the slope
of line d?
Answers
Answer:
-8/7
Step-by-step explanation:
First, find the slope of line c.
(x1, y1) = (9, 10)
(x2, y2) = (1, 3)
The slope formula is:
[tex]m=\frac{y2-y1}{x2-x1}[/tex]
Solve for the slope using the given values:
[tex]m=\frac{3-10}{1-9}\\\\m=\frac{-7}{-8}\\\\m=\frac{7}{8}[/tex]
The slope of line c is 7/8. To find the slope perpendicular to it, you need to find the negative reciprocal of that number. An example of that would be 2 and -1/2. Basically, flip the fraction and the +/-.
In this case, the negative reciprocal of 7/8 is -8/7. The image below doesn't account for the y-intercept, but it does show that the slopes are perpendicular.
Answer:
slope = - [tex]\frac{8}{7}[/tex]
Step-by-step explanation:
Calculate the slope m of line c using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (9, 10 ) and (x₂, y₂ ) = (1, 3 )
m = [tex]\frac{3-10}{1-9}[/tex] = [tex]\frac{-7}{-8}[/tex] = [tex]\frac{7}{8}[/tex]
Given a line with slope m then the slope of a line perpendicular to it is
[tex]m_{perpendicular}[/tex] = - [tex]\frac{1}{m}[/tex] = - [tex]\frac{1}{\frac{7}{8} }[/tex] = - [tex]\frac{8}{7}[/tex] ← slope of line d
express the following ratio in the simplest form 7.2m to 24cm
Answers
Answer:
Our simplified ratio is 3:10.
Step-by-step explanation:
We are given this ratio:
7.2:24
We can tell that 7.2:24 = 7.2/24. Now, let's simplify.
=> 7.2/24 = 6/20=> 6/20 = 3/10
Our simplified fraction is 3/10. Now, let's turn it back to ratio form.
=> 3/10 = 3:10
Conclusion:
Therefore, our simplified ratio is 3:10.
Hoped this helped.
[tex]BrainiacUser1357[/tex]
Calculate the value of (225 ÷ 0.25) – 11.875
Answers
Answer:
888.125
Step-by-step explanation:
(225/.25) - 11.875
(Divide 225 by .25)
900 - 11.875
888.125
What is the value of |–3.25| ?
Answers
Answer:
3.25
Step-by-step explanation:
Rule: An absolute value will always be positive.
=> Referring to the rule, the absolute value of |–3.25| is 3.25.
Hoped this helped.
[tex]BrainiacUser1357[/tex]
Determine whether each quadrilateral is a parallelogram. Justify your answer.
Answers
Answer:
1. Parallelogram2. Parallelogram3. Parallelogram
Step-by-step explanation:
I am un-sure of the answers. I apologize if this is incorrect.
Hoped this helped.
13.
A?
B?
C?
D?
I’ll check back in whoever is correct here brainlest <3 ignore the stuff at the bottom
Answers
[tex]\huge \sf༆ Answer ༄[/tex]
Let's solve ~
[tex] \sf {x}^{2} - 10xy + 21 {y}^{2} [/tex]
[tex] \sf {x}^{2} - 7xy - 3xy + 21 {y}^{2} [/tex]
[tex] \sf x(x - 7y) - 3y(x - 7y)[/tex]
[tex] \sf( x - 7y)(x - 3y)[/tex]
Hence, the correct choice is ~ A
Eli is now one quarter of his father’s age. In 5 years’ time his age will be one third of
his father’s age. How old is Eli now?
Answers
Answer:
10
Step-by-step explanation:
This is because 10×4=40
10+5=15
40+5=45
45/15=3
Answer:
Step-by-step explanation:
Let E and F represent Eli and his Father's current ages.
We are told that E = (1/4)F. ["Eli is now one quarter of his father’s age"]
But in 5 years, that will be:
(E+5) = (1/3)(F+5) ["In 5 years’ time his age will be one third of
his father’s age"]
-------------
We have two equations and two unknowns. Find a way to eliminate one of the two variables and then solve for the remaining variable.
E = (1/4)F
(E+5) = (1/3)(F+5)
It seems to me the easiest would be to use the first equation's definition of E [=(1/4)F] in the second equation:
(E+5) = (1/3)(F+5)
((1/4)F+5) = (1/3)(F+5)
(1/4)F - (1/3)F = (1/3)*5 - 5
F - (4/3)F = (4/3)*5 - 20
-(1/3)F = (20/3) - (60/3)
-(1/3)F = (-40/3)
F = (120/3)
F = 40 years
E = 10 years (based on E = (1/4)F)
====
In five years: F is 45 and E is 15, which would make Eli 1/3 of his father's age in 5 years.
The set of ordered pairs shown below defines a relation. (MAFS.912.F-IF.2.4){(0, 0), (1, 5), (2, 8), (3, 9), (4, 8), (5, 5), (6, 0)}What is the value of the greatest element in the range of this relation?
Answers
Using the range concept, it is found that the greatest element in the range of this relation is 9.
The range of a data-set is the set that contains all possible outputs.The data-set has the format (x,y), in which the values of y are the outputs.
Hence, the range is: {0, 5, 8, 9}.
From the given range, the greatest element is 9.
For more on range of data-sets, you can check https://brainly.com/question/10891721
A line has a slope of – 4 and includes the points (6,3) and (9,p). What is the value of p?
Answers
Answer:
The value of p is -9.
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(p-3)/(9-6)
m=(p-3)/3
-4=(p-3)/3
-4*3=p-3
-12=p-3
p=-12+3
p=-9
What is the slope of the line that passes through the points (-2, -5)(−2,−5) and (-3, -6) ?(−3,−6)? Write your answer in simplest form.
Answers
Answer:
0 & 0
Step-by-step explanation:
In order to find the answer to these two questions you need to use the slope formula, substitute, subtract, and simplify if needed.
[tex](-2,-5),(-2,-5) = (x^1,y^1),(x^2,y^2)[/tex]
Slope formula = [tex]m=\frac{y^2-y^1}{x^2-x^1}[/tex]
Substitute: [tex]\frac{-5--5}{-2--2} =[/tex]
[tex]\frac{-5--5}{-2--2} =-5--5 = 0[/tex]
[tex]-2--2 = -2+2=0[/tex]
[tex]= 0[/tex]
[tex](-3,-6),(-3,-6)=(x^1,y^1),(x^2,y^2)[/tex]
[tex]m=\frac{-6--6}{3--3}[/tex]
[tex]-6+6=0[/tex]
[tex]-3+3=0[/tex]
[tex]=0[/tex]
Hope this helps.
Find the first six terms of a sequence represented by f(n) = 6(n-2)
Answers
The first term is: f(1)=6(1-2) f(1)=6(-1) f(1)=-6
The second term is: f(2)=6(2-2) f(2)=0
The third term is f(3)=6(3-2) f(3)=6
The fourth term is: f(4)=6(4-2) f(4)=12
The fifth term is: f(5)=6(5-2) f(5)=18
The sixth term is: f(6)=6(6-2) f(6)=24
The sequence is: -6, 0, 6, 12, 18, 24
Can you help me answer this one please ?
Answers
Answer:
d. Right 5 and down 3
Step-by-step explanation:
If you have a given graph and then find that it is altered, the changes to the x (something added to or subtract from x) will be on the graph by translating (sliding) the graph left or right. Horizontal changes are probably the opposite of what they seem like they should be: x+_ moves the graph left and x-_ moves the graph right.
A number added on to the end of the equation will shift (translation, again) the graph up (a number added on) or down (a number subtracted). So in this case the x-5 moves the graph to the right 5 units and the - 3 at the end of the equation moves the graph down three units.
Help ! If you're not starbright , please do not answer or i'll report , but if you have the right answer with correct proof , you won't get reported !
Answers
Answer:
Step-by-step explanation:
1) So -8+2v<2, 2v<10, v<5. That means that at "5" on the axis, you'll draw a circle that's not filled in (because it's <5, not [tex]\leq[/tex]5) and then draw a box-y thing to the left. Sorry, can't really describe it, but if you look at the picture attached, you'll understand
2) -12m-8[tex]\leq[/tex]-5m-7m, so -12m-8[tex]\leq[/tex]-12m, -8[tex]\leq[/tex]0. This one doesn't have a variable... so you can't really graph it?
Latisha works x hours each day. Demetrius works 1 more hour each day than Latisha.Which expressions both calculate the number of hours Demetrius works in a 5-day work week?
Answers
The expressions that calculate the number of hours that Demetrius works in a week are [tex]5(x+1)\text{ and }5x+5[/tex]
If Latisha works [tex]x[/tex] hours each day
Demetrius works one more hour than Latisha each day. Algebraically, Demetrius works [tex](x+1)[/tex] hours each day
So for a [tex]5[/tex]-day working week, Demetrius will work
[tex](x+1)+(x+1)+(x+1)+(x+1)+(x+1)\\=5\times (x+1)\\=5(x+1)hours[/tex]
If we remove the brackets, we have the equivalent expression
[tex]5(x+1)=5x+5[/tex]
So the expressions that calculate the number of hours that Demetrius works in a week are [tex]5(x+1)\text{ and }5x+5[/tex]
Learn more about word problems here: https://brainly.com/question/17067890
find the area of this shape
please
Answers
[tex] Area \:of\: rectangle = l \times b \\ = 3 \times 6 \\ = 18 {cm}^{2} [/tex][tex] Area\: of\: triangle = \frac{ab}{2} \\ = \frac{4 \times 6}{2} \\ = 12 {cm}^{2} [/tex]
Total area = 12 + 18 = 30cm²
Answer:
Area of the right angled triangle:-
= height × base ÷ 2
= 4 cm × 6 cm ÷ 2
= 4 cm × 3 cm
= 12 cm²
Area of the rectangle:-
= length × breadth
= 6 cm × 3 cm
= 18 cm²
Area of the figure:-
= 12 cm² + 18 cm²
= 30 cm²
Do Now 13.2:
Green light has a frequency of 5.71 x 10' Hz.
Calculate the energy of a green light photon.
(SHOW ALL WORK for FULL CREDIT!)
Answers
Answer:
Not Step-by-step explanation:
Not enough info
For 1-3 write an equivalent expression
1.) -3(7+5g)
2.) (x+7)+3y
3.) 2/9-1/5*x
Answers
[tex]\huge \bf༆ Answer ༄[/tex]
The equivalent expressions are ~
Question : 1
[tex] \sf \: - 3(7 + 5g)[/tex]
[tex] \sf - 21 - 15g[/tex]
[tex] \sf- 15g - 21[/tex]Question : 2
[tex] \sf \:( x + 7) + 3y[/tex]
[tex] \sf \: x + 7 + 3y[/tex]
[tex] \sf \: x + 3y + 7[/tex]Question : 3
[tex] \sf \dfrac{2}{9} - \dfrac{1}{5x} [/tex]
[tex] \sf \dfrac{10x - 9}{45x} [/tex]
Question : 1- 3(7 + 5g)−3(7+5g)
- 21 - 15g−21−15g
- 15g - 21−15g−21Question : 2( x + 7) + 3y(x+7)+3y
x + 7 + 3yx+7+3y
x + 3y + 7x+3y+7Question : 3 2 - 1
9 5×
10× - 9
45×
A recipe calls for cup
3/4of milk to make 4
cookies. If Sarah wants to
cut the recipe in, 1/2how
much milk would she
need?
Answers
she would need 3/8 cups of milk.
3/ 8
of a cup.
Explanation:
You want half of the recipe, so you want half of
3/4
of a cup.
Of means multiplication when it comes to fractions, so multiply
3/4 by 1/2 to get 3/4 ⋅ 1/2 = 3/8
The vertices of a triangle are P(8, -5), Q(-5, -8), and R(-4, -3). What are the vertices of the
image reflected across the y-axis?
A. P’(8,-5), Q'(-5, -8), and R'(-4,-3)
B. P'(-8,5), Q'(5,8), and R'(4,3)
C. P'(8,5), Q'(-5,8), and R'(-4,3)
D. P'(-8,-5), Q'(5, -8), and R'(4, -3)
Answers
Answer:
A
Step-by-step explanation:
Hi
Which of the expressions below has a product that is greater
than 140? Select all that apply.
A) 11.5 x 12
B) 11.85 x 12
C) 15.2 x 9
D) 23.4 x 6
You can earn 5 coins
Answers
B and D
11.85 x 12 = 142.2
23.4 x 6 = 140.4
what is the x coordinate to the solution for the following system of equations
x = 2y
4x - 3y = 15
Answers
Answer:
x=6
Step-by-step explanation:
x=2y
4x-3y=15
4(2y)-3y=15
8y-3y=15
5y=15
y=3
x=2y
x=2(3)
x=6
If Angle CAB is 49 degrees, what is the measure of Angle ABD? *
Answers
Answer:
49 degree
Step-by-step explanation:
A box of 15 markers cost is $2.40 how much will a box of 40 marker’s cost
Answers
Answer:
$6.40
Step-by-step explanation:
Answer:
Step-by-step explanation:
6.4
2/3x + 5/6=3 1/3 I need it in as a mixed number in it's simplest form please
Answers
Answer:
3 3/4
Step-by-step explanation:
Are all real numbers either rational or irrational?
Answers
Answer:
Yes. All real numbers are either rational or irrational.
Step-by-step explanation:
The set of all irrational numbers is commonly defined as the set of all real numbers that are not rational.
Let [tex]\mathbb{R}[/tex] denote the set of all real numbers. Let [tex]\mathbb{Q}[/tex] denote the set of all rational numbers.
For any given real number [tex]x[/tex] ([tex]x \in \mathbb{R}[/tex],) either [tex]x\![/tex] is rational ([tex]x \in \mathbb{Q}[/tex]) or [tex]x\!\![/tex] isn't rational ([tex]\lnot (x \in \mathbb{Q})[/tex], such that [tex]x \not\in \mathbb{Q}[/tex] and thus [tex]x \in (\mathbb{R} \backslash \mathbb{Q})[/tex].)
Assume that [tex]x[/tex] isn't a rational number. By the definition of rational numbers, since [tex]x\!\![/tex] is a real number but not a rational number ([tex]x \in (\mathbb{R} \backslash \mathbb{Q})[/tex],) [tex]x\![/tex] would be an irrational number.
Therefore, either [tex]x[/tex] is rational or [tex]x\![/tex] is irrational. Every real number would either be rational or irrational.
The Culver City Carnival had a face-painting booth. There were 8 times as many kids as adults who had their faces painted. Pick the diagram that models the ratio in the story. If 56 kids had their faces painted, how many people had their faces painted altogether?
Answers
So I think the answer would be 7 adults and altogether it would be 63 people with their face painted but I’m not really sure… sorry if it’s wrong I think it’s right tho
Determine if the two triangles are congruent. If so, select the appropriate congruence postulate. If not, select the reason why.
Answers
Answer:
Asa
Step-by-step explanation:
Because if u look left to right on one triangle there is a angle and in between they have a com on line and on the right theres another angle so There for it’s angle side angle
what is the perimeter of PRT?
Give your answer as just a number.
Answers
Step-by-step explanation:
PT=2QS = 2×8 = 16m
therefore perimeter of ∆PRT = 6+16+14 = 36m
hope this helps you.
Interest loans are determined by ______
A. whatever the leader wants to charge
B. your credit profile
C. credit bureaus
D. the amount owed at various times
PLEASE hurry! i need help, my grades are failing and i really need correct answers!
Answers
Answer:
I think the answer is D please forgive me if I'm wrong