Answer:
The first group has 20 and the second group has 8.
Step-by-step explanation:
1. Twice as many as 8 is 16 (8x2)
2. If you add four to the total it's 20 (16+4=20)
3. So group one has four more than twice as many as group 2.
can someone please help me with this
Answer:
use your protractor if you had one you can find the measurement of the angle ABD .
Write a word translation for 7 >x.
Answer:
mashup math on "yt"
Step-by-step explanation:
go there you'll get you answer and more he explained it better then i could have
Evalua -2 4/5 - 1 .4
Answer:
-4.2
Step-by-step explanation:
-2 4/5 - 1 .4
-2.8 -1.4
-4.2
Answer:
-21/5
-4.2- decimal form
-4 1/5- mixed number form
Step-by-step explanation:
This is the flag of the state of Colorado.
The ratio of the width to length is 2:3.
If the actual flag is 12 feet long, find the width of it.
Explain
Answer:
i think it is 8 feet long
Step-by-step explanation:
8/12
divide each side by 4
2:3
Give the slope values that are parallel and perpendicular to a slope of 1/4.
Step-by-step explanation:
Finding the Slopes of Parallel and Perpendicular Lines
How do we know if two distinct lines are parallel, perpendicular or neither? To make that determination, we need to review some background knowledge about slope.
Concept 1: When two points are given, the slope of a line can be algebraically solved using the following formula:
Slope Formula
The slope,mm, of a line passing through two arbitrary points \left( {{x_1},{y_1}} \right)(x
1
,y
1
) and \left( {{x_2},{y_2}} \right)(x
2
,y
2
) is calculated as follows…
m = (ysub2-ysub1)/(xsub2-xsub1)
Concept 2: When a linear equation is given, we can find the slope by transforming it into the Slope-Intercept Form. The value of slope will stand out, as it is the coefficient of the linear term (xx-term).
Slope-Intercept Form of a Line
The linear equation written in the form y = mx + by=mx+b is in slope-intercept form where:
m is the slope, and b is the y-intercept
Now, suppose we have two distinct and nonvertical lines, {\ell _1}ℓ
1
and {\ell _2}ℓ
2
in Slope-Intercept Form.
Line 1:
line 1 → y=msub1x+b
Line 2:
line 2 → y = msub2x+b
Parallel Lines: The lines are parallel if their slopes are equal or the same. That means
Equal Slopes:
msub1 = msub2
Graph:
graph showing line 1 and line 2 parallel on the coordinate plane.
Perpendicular Lines: The lines are perpendicular if their slopes are opposite reciprocals of each other. Or, if we multiply their slopes together, we get a product of - \,1−1. These lines intersect at a ninety-degree angle, 90°.
Opposite Reciprocal Slopes:
msub1 = -(1/msub2)
Product of Slopes:
msub1× msub2 = -1
Graph:
graph showing line 1 and line 2 perpendicular to each other on the coordinate plane.
Examples of How to Find the Slopes of Parallel and Perpendicular Lines
Example 1: Line 1 passes through the points \left( {1,3} \right)(1,3) and \left( {4,9} \right)(4,9), while line 2 passes through \left( {2,5} \right)(2,5) and \left( { - \,2, - \,3} \right)(−2,−3). Tell whether these lines are parallel, perpendicular, or neither.
Simplify.
(x2 - y2 - 3xy) + (7xy + 3x2)
Answer:
(x² - y² - 3xy) + (7xy + 3x²) = 4x² - y² + 4xy
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Terms/CoefficientsStep-by-step explanation:
Step 1: Define
Identify
(x² - y² - 3xy) + (7xy + 3x²)
Step 2: Simplify
[Order of Operations] Combine like terms (x²): (x² - y² - 3xy) + (7xy + 3x²) = 4x² - y² - 3xy + 7xy[Order of Operations] Combine like terms (xy): (x² - y² - 3xy) + (7xy + 3x²) = 4x² - y² + 4xyAnswer:
4x^2-y^2+4xy
Step-by-step explanation:
Just combine like terms and do not forget that your adding the set of parentheses together.
x^2+3x^2
-y^2
-3xy+7xy
what number is six more than 1/3 of 90? step by step I have a test tomorrow and I don't know any math
Answer:
36
Step-by-step explanation:
First, just multiply 90 by 1/3. 90 is equal to 90/1 as any number divided by 1 is still equal to itself.
[tex]\frac{90}{1}*\frac{1}{3}=\frac{90*1}{1*3}=\frac{90}{3}[/tex]
Now, 90/3 is just 90 ÷ 3.
[tex]90 \div 3 = 30[/tex]
Finally, just add 6 to it.
[tex]30+6=36[/tex]
Answer:
36
Step-by-step explanation:
1/3 of 90 is 30
6 more is 30+6=36
Could somebody give me step by step on how to do this please
A(0, 1), B(2,7)
find the slope of the lime that passes through each pair of points. show work and solve.
Answer:
The slope is 3
Step-by-step explanation:
[tex]m = \frac{7 - 1}{2 - 0} \\ m = \frac{6}{2} \\ m = 3[/tex]
Solve the equation below, then check your answer by seeing if LS = RS. Show your work!
Solve: 6m+ 7 = 31
Check:
Answer:
[tex]m = 4[/tex]
Step-by-step explanation:
[tex]6m + 7 = 31 \\ 6m + 7 - 7 = 31 - 7 \\ 6m = 24 \\ \frac{6m}{6} = \frac{24}{6} \\ m = 4[/tex]
check
[tex]6m + 7 = 31 \: \: \: \: \: m = 4 \\ 6(4) + 7 = 31 \\ 24 + 7 = 31 \\ 31 = 31[/tex]
Answer:
4
Step-by-step explanation:
31-7=24
24/6=4
So, 4 is the answer
help me please
What is a correct congruence statement for the triangles shown?
Answer:
∆JWB≅∆SYH
Step-by-step explanation:
SSS congruency theorem
4. Which information can you read from an equation that is written in slope-intercept form?
slope
x-intercept
origin
distance between the c-intercept and the y-intercept
Tell what number you would add to each side of the inequality.
Please answer ASAP
Answer: 6
Step-by-step explanation: Gets x by itself.
HELP PLSSS
find f(9) if f(x) = 4^x + 12
Answer:
I think its 262156
Step-by-step explanation:
Answer:
If f(x) = 4ˣ + 12, f(9) = 262156.
Step-by-step explanation:
f(x) = 4ˣ + 12
Substitute input x = 9.
f(9) = 4⁹ + 12
Evaluate 4 to the 9th power.
f(9) = 262144 + 12
Add 262144 and 12.
f(9) = 262156.
-10 + (-3/4)
PLEASE I NEED HELPP! ITS FOR A GRADE
Answer:
-10.74
Step-by-step explanation:
Answer:
[tex]-\frac{43}{4}[/tex] or -10.75 or -10[tex]\frac{3}{4}[/tex]
Step-by-step explanation:
I assume you just wanted to add -10 and [tex]-\frac{3}{4}[/tex] together here.
The answers are as listed. If you need steps let me know.
Hope this helps and have a nice day!
Please help me solve this ASAP !
Answer:
25
Step-by-step explanation:
Simplify: 3√50+√24-2√72
Answer: 72
Step-by-step explanation:
i took the k12 test
If you help ill mark as brilliant.
A rectangle's length is fourteen feet more than its width. The perimeter is 264 feet. Find the dimensions.
PLS HELP ITS TIMED
Answer:
59 and 73
Step-by-step explanation:
set width is w and length will be w+14
[tex]P = 2(w+w+14)\\=2(2w+14)\\=4w+28\\=264[/tex]
Solve for w
w = 59
length = 59+14=73
find the zeros of y=x^3-x^2-9x+9
with explanation
Answer:
So, we have the equation:
[tex]y=x^3-x^2-9x+9[/tex]
Usually, we have to do trial-by-error methods like using the Rational Root Theorem to factor cubic polynomials. However, while this may seem like a complicated cubic equation to factor, it has a simple trick to make it much easier!
We can actually factor this polynomial through Factoring by Grouping. With this method, we can factor a cubic polynomial. We split the equation into two parts, like this:
[tex]y=x^3-x^2-9x+9[/tex]
[tex]y=(x^3-x^2)+(-9x+9)[/tex]
Which can be simplified to:
[tex]y=(x^2)(x-1)+(-9)(x-1)[/tex]
We took out a factor of x^2 for the first term and a negative 9 for the second term. As we can see, we now have two terms that are the same:
(x - 1)
We can factor out the (x - 1) like this:
[tex]y=(x^2)(x-1)+(-9)(x-1)[/tex]
[tex]y=(x-1)(x^2-9)[/tex]
Now, this is not the most simplified form. See the x^2-9 term? We can use the Difference of Squares.
In general:
[tex]a^2-b^2=(a-b)(a+b)[/tex]
We have the expression:
[tex](x^2-9)=(x^2-3^2)[/tex]
[tex](x^2-3^2)=(x-3)(x+3)[/tex]
Therefore:
[tex]y=(x-1)(x^2-9)[/tex]
[tex]y=(x-1)(x-3)(x+3)[/tex]
Our fully factored form for y=x^3-x^2-9x+9 is:
[tex]y=(x-1)(x-3)(x+3)[/tex]
please do this for me. 15 points
Answer:
heres the link 19
https://brainly.com/question/25392276?answering=true&answeringSource=feedPublic%2FhomePage%2F2
I need answers to Percent Change & Percent Error for 7th-grade math, please
Answ160
Step-by-step explanation:
Solve for n.
10/7=n/2
What’s the answer
What is an equation of the line that passes through the points (4, -1) and (-8, -7)?
Answer:
y = 1/2x - 3
Step-by-step explanation:
y2 - y1 / x2 - x1
-7 - (-1) / -8 - 4
-6/ -12
m = 1/2
y = mx + b
y = 1/2x + b
-1 = 1/2(4) + b
-1 = 2 + b
-3 = b
A group of people were asked whether they prefer soup or salad for lunch.
The table shows the probabilities of the results
Let A represent having soup and B represent having salad for lunch.
Which statement is true?
A. Having soup and salad for lunch are independent events because P(A]B) = P(A) and P(BA) = P(B)
B. Having soup and salad for lunch are independent events because P(A]B) + P(A) and P(BA) + P(B)
C. Having soup and salad are not independent events because P(A]B) + P(A) and P(BA) + P(B)
D. Having soup and salad for lunch are not independent events because P(A]B) = P(A) and P(BA) = P(B)
Answer:
Having soup and salad for lunch are independent events because P(A/B)=P(A) and P(B/A) = P(B)
Step-by-step explanation:
Which statement explains how to correct the error that was made?
O The subtraction property of equality should have been applied to move m to the other side of the equation.
O The multiplication property of equality should have been applied in the last step.
The division property of equality should have been used to divide by k instead of m.
O The square root property should have been applied to both complete sides of the equation instead of to select
variables.
Solving for v in the given equation is performed by making v the equation's
subject.
Response:The statement that describes where the error was made is option;
The square root property should have been applied to both complete sides of the equation instead of to select variables.Method for solving for v in the given equation;v can be solved for from the given expression as follows;
[tex]\displaystyle k = \mathbf{\frac{1}{2} \cdot m \cdot v^2}[/tex]
[tex]\displaystyle k \div m = \mathbf{\left(\frac{1}{2} \cdot m \cdot v^2 \right) \div m}[/tex]
[tex]\displaystyle \frac{k}{m} \times 2 = \left( \frac{1}{2} \cdot v^2 \right) \times 2[/tex]
[tex]\displaystyle \frac{2 \cdot k}{m}= \mathbf{v^2}[/tex]
Taking the square root of both sides of the equation gives;
[tex]\pm \sqrt{\displaystyle \frac{2 \cdot k}{m}} = \mathbf{\sqrt{v^2}}[/tex]
Therefore;
[tex]\displaystyle \pm \sqrt{\frac{2 \cdot k}{m} } = v[/tex]
Therefore, the error was made in the step, [tex]\displaystyle \pm \frac{2 \cdot \sqrt{k} }{m} = \sqrt{v^2}[/tex] , which is by
applying the square root property was applied to only some of the
variables on the left hand side of the equation, rather than the combined
expression on the left hand side of the equation.
Learn more about making a variable the subject of the formula here:
https://brainly.com/question/8481791
Answer:
The square root property should have been applied to both complete sides of the equation instead of to select variables.
or D
Step-by-step explanation:
I found the answer and just gave it to u straight up and I got it correct
Suppose that a sequence is defined as follows.
Q=-1,
q=-40,-1+2 for n22
=
n
n-
List the first four terms of the sequence.
Answer:
here's your answer v
Step-by-step explanation:
The first number in the sequence, , is -2.
Each number after that is the previous number multiplied by -2.
etc. We start by stating that .
Now we need to show that for all n greater than or equal to 2, each number in the sequence is the previous number multiplied by -2.
this is the answer.
Answer:
a1+= -2; an = - 2a-1, n > 2
simplify: -5/3(-6-9x)
Answer:
jsbnsjzskjusjjw.3334883!"!$+%-$+$9
please help me out
Step-by-step explanation:
what do we need to do ? find the 0 solutions for x ?
if that is the case, let's just do all the multiplication first :
(3/2)² × (2/3)⁴x² = x
9/4 × 16/81 x² = x
4/9 x² = x
4/9 x² - x = 0
4x² - 9x = 0
x × (4x - 9) = 0
so, one solution is obviously x = 0.
the second solution is
4x - 9 = 0
4x = 9
x = 9/4
A fast-food restaurant was selling 7 boxes of chicken nuggets for $25.90. A competing restaurant was selling 3 boxes of chicken fingers for $11.07. Which food has a higher unit price? Answer:
Answer:
The competing company is better
7 for 25.90 vs. 7 for 25.83
Step-by-step explanation:
Since it's 3 for 11.07
we need to see how much higher the price will get at 7, so divde 11.07 by 3 then double the price.
3.69 per box for competing company
11.07*2 = 22.14
22.14 + 3.69= 25.83
