Answer:
(7x+3)+(-x-5)=-16
or,7x+3-x-5=-16
or,6x-2=-16
or,6x=-16+2
or,6x=-14
or,x=-14/6
hence x=-14/6
can someone answer this ASAP thanks
750 (0.05) = 37.5
Commision: $37.5
The commision rate turns into 0.05 times the sale price.
me ayudan por favor
Answer:
1) 5.091
2) 54.6731
3) 2.954
4) 0.17278
5) 68.031
I'm lost, please help (NO LINKS)
Answer:
Adam's total cost: $9.20
Cindy's total cost: $9.20
Step-by-step explanation:
Since Adam and Cyndi's total bill costs $16, evenly splitting the cost means that each of them has to pay $8, not including the tip.
To find out the dollar value of their 15% tip, multiply $8 by 0.15:
$8 × 0.15 = $1.20.
Adam and Cindy will have to pay $8 (lunch cost) + $1.20 (tip) = $9.20 separately.
Which of the following is not always true for adjacent angles? * (
)a) They have a common arm.
b) They have a common vertex.
c) Their sum is 180°.
d) Their other two arms lie on the opposite side of the common arm.
Answer:
C
Step-by-step explanation:
Would appreciate the help !
This is one pathway to prove the identity.
Part 1
[tex]\frac{\sin(\theta)}{1-\cos(\theta)}-\frac{1}{\tan(\theta)} = \frac{1}{\sin(\theta)}\\\\\frac{\sin(\theta)}{1-\cos(\theta)}-\cot(\theta) = \frac{1}{\sin(\theta)}\\\\\frac{\sin(\theta)}{1-\cos(\theta)}-\frac{\cos(\theta)}{\sin(\theta)} = \frac{1}{\sin(\theta)}\\\\\frac{\sin(\theta)*\sin(\theta)}{\sin(\theta)(1-\cos(\theta))}-\frac{\cos(\theta)(1-\cos(\theta))}{\sin(\theta)(1-\cos(\theta))} = \frac{1}{\sin(\theta)}\\\\[/tex]
Part 2
[tex]\frac{\sin^2(\theta)}{\sin(\theta)(1-\cos(\theta))}-\frac{\cos(\theta)-\cos^2(\theta)}{\sin(\theta)(1-\cos(\theta))} = \frac{1}{\sin(\theta)}\\\\\frac{\sin^2(\theta)-(\cos(\theta)-\cos^2(\theta))}{\sin(\theta)(1-\cos(\theta))} = \frac{1}{\sin(\theta)}\\\\\frac{\sin^2(\theta)-\cos(\theta)+\cos^2(\theta)}{\sin(\theta)(1-\cos(\theta))} = \frac{1}{\sin(\theta)}\\\\[/tex]
Part 3
[tex]\frac{\sin^2(\theta)+\cos^2(\theta)-\cos(\theta)}{\sin(\theta)(1-\cos(\theta))} = \frac{1}{\sin(\theta)}\\\\\frac{1-\cos(\theta)}{\sin(\theta)(1-\cos(\theta))} = \frac{1}{\sin(\theta)}\\\\\frac{1}{\sin(\theta)} = \frac{1}{\sin(\theta)} \ \ {\checkmark}\\\\[/tex]
As the steps above show, the goal is to get both sides be the same identical expression. You should only work with one side to transform it into the other. In this case, the left side transforms while the right side stays fixed the entire time. The general rule is that you should convert the more complicated expression into a simpler form.
We use other previously established or proven trig identities to work through the steps. For example, I used the pythagorean identity [tex]\sin^2(\theta)+\cos^2(\theta) = 1[/tex] in the second to last step. I broke the steps into three parts to hopefully make it more manageable.
the mass of a sphere made of gold is proportional to the diameter, d, cubed. express the mass m of the sphere as a function of the diameter. use c as your proportionality constant.
Answer:
m = cd³
Step-by-step explanation:
mass of is proportional to the diam
sphere cubed
Symbolically, this can be written as:
m = cd³
Noah said we cannot use long division to calculate 10 / 3 because there will always be a remainder do or disagree or agree why or why not
Answer:
disagree, its easy math, 10/3 =3.3 continued
Identify the unit rate in each graph. Then, order the graphs by unit rate, from least to greatest.
Answer:
God
Step-by-step explanation:
Because I need points
What is the equation of the line that passes through the point (-8,0) and has a slope of - 1/4
Answer:
y = -1/4 -2
Step-by-step explanation:
7/12 divided by 2 5/8
Answer:
2/9
Step-by-step explanation:
Answer: 2/9
Step-by-step explanation:
First write as an improper fraction.
2 5/8 is equal to 21/8
Then re-write
7/12 divided by 21/8
Then multiply 7/12 by the reciprocal of 21/8 which is 8/21
The answer is 56/252
Simplify
The answer is 2/9
Sketch the graph of the function below, including correct signs, x-intercepts and y-
intercepts.
f(x) = (x + 5)(x + 3)(x - 2)2
Answer:
if you learned derivative:
f'x=(x+3)(x-2)²+(x+5)(x-2)²+2(x+5)(x+3)(x-2)
=4x³+12x²-26x-28=0
⇒x=2; =-0.84; =-4.16
⇒fx=0; =72.47; -36.97⇒fx contain (2;0); (-0.84;72.47); (-4.16;-36.97)
if x=0⇒f'x=-28<0⇒from -0.84 to 2, fx Decreasing
Step-by-step explanation:
The area of the parallelogram is 24 square miles find its base and height?
Answer:
Base-3 mi
Height-8 mi
Step-by-step explanation:
The area of a parallelogram is base*height.
Base*height=24
Now we just need to number that multiply to get 24. Those numbers can be 3 and 8 because 3*8=24.
The dimension of the parallelogram are 1 x 24, 2 x 12, 4 x 6, 8 x 3, and 24 x 1.
What is the area of the parallelogram?The opposite sides of the parallelogram are parallel and congruent. Let H be the height and W be the width of the parallelogram.
Then the area of the parallelogram will be
Area of the parallelogram = H × W square units
The area of the parallelogram is 24 square miles.
Then the dimension of the parallelogram is given as,
Area = 24
Area = 2 x 2 x 2 x 3
Area = 1 x 24, 2 x 12, 4 x 6, 8 x 3, 24, 1
The dimension of the parallelogram are 1 x 24, 2 x 12, 4 x 6, 8 x 3, and 24 x 1.
More about the area of the parallelogram link is given below.
https://brainly.com/question/16052466
#SPJ5
BRAINLIEST IF CORRECT PLEASE HELP
Answer:
4 3/28
Step-by-step explanation:
Hope this helps!
Answer:
[tex]4 \frac{3}{28}[/tex]
Step-by-step explanation:
First, let's turn these mixed fractions to regular fractions to make multiplying easier:
3 2/7 = 2/7 + 21/7 = 23/7
1 1/4 = 1/4 + 4/4 = 5/4
Then multiply:
[tex]\frac{23}{7}*\frac{5}{4} = \frac{( 23 * 5 ) }{(7*4)} =\frac{115}{28}[/tex]
This fraction cannot be simplified, so let's turn it into a mixed fractions:
[tex]\frac{115}{28} =4\frac{3}{28}[/tex]
∠A and \angle B∠B are vertical angles. If m\angle A=(7x-27)^{\circ}∠A=(7x−27) ∘ and m\angle B=(3x+29)^{\circ}∠B=(3x+29) ∘ , then find the value of x.
Answer:
x = 14
Step-by-step explanation:
Vertical angles are congruent , then
7x - 27 = 3x + 29 ( subtract 3x from both sides )
4x - 27 = 29 ( add 27 to both sides )
4x = 56 ( divide both sides by 4 )
x = 14
what slope intercept equation of the following line?
Answer: y=2x+7
Step-by-step explanation:
The og equation to get to the equation is y=mx+b. M=slope & B=y intercept
Lets first pick 2 points to find the slope (the formula is y2-y1/x2-x1). After using the formal, I got my slope as 2. Now I could say y=2x+b. Now to find the y intercept, the x point should be 0 because these are on going lines (you could tell by the infinite arrows) meaning there is no starting point. I got my y intercept as 7. Now, I know that y=2x+7.
help me guys and it will be better if you also write the explaination
Answer:
Please see below.
Step-by-step explanation:
f^-1 (x) essentially means the reverse.
We can substitute y for x in the equation and solve for y:
x = 4y -1
x+1 = 4y
y = (x+1)/4
so that is our answer for the first one:
f^-1(x) = (x+1)/4
We do the same trick for the second question:
x = 2y +1
x-1 = 2y
y = (x-1)/2
so the answer is f^-1(x) = (x+1)/2
The last question is slightly more complex, we can write is as:
x = 2y/(y-1)
x(y-1) = 2y
yx -x = 2y
yx = 2y + x
yx - 2y = x
y(x-2) = x
y = x/(x-2)
so the answer is x/(x-2)
You can check out my fiverr account for more help; providing detailed explanations to math questions for only $1per question :)
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Example 6
Solve for w: w + 2 > 4.
Answer:
w > 2
Steps:
w +2 > 4
w + 2 - 2 > 4 - 2
w > 2
How many times longer does it take light from the Sun to reach Neptune than Mercury? Express this number in standard notation. Explain your reasoning
Answer:
Step-by-step explanation:
The ratio of light times will be the ratio of distances:
(light time to Neptune) / (light time to Mercury)
= (Neptune distance)/(Mercury distance)
= (27.93×10^8 mi)/(0.3598×10^8 mi) = 27.93/0.3598
≈ 77.6
A diver is at 56 m below sea level. He goes down 17 m and moves up 29 m. Find his final position
Step-by-step explanation:
final position = (-56-17+29)m = -44m
44m below the sea level.
Answer:
Here is the answer 44
Step-by-step explanation:
56+17=73
73-29=44
The mass of a pail is 2490 g when it is 1/4 filled with sand. It has a mass of 9240 g when it is fully filled with sand. Find the mass of the pail when it is empty.
[tex]\sf 4\left(x+2\right)-2x=0[/tex]
Answer:
x = -4
Step-by-step explanation:
Step 1: Apply distributive property.
[tex](4)(x)+(4)(2)-2x=0[/tex] [tex]4x + 8 - 2x = 0[/tex]Step 2: Combine like terms.
[tex](4x-2x)+(8)=0[/tex] [tex]2x + 8 = 0[/tex]Step 3: Subtract 8 from both sides.
[tex]2x + 8 - 8 = 0 - 8[/tex] [tex]2x = -8[/tex]Step 4: Divide both sides by 2.
[tex]\frac{2x}{2} = \frac{-8}{2}[/tex] [tex]x = -4[/tex]Step 5: Check if solution is correct.
[tex]4(-4+2)-2(-4)=0[/tex] [tex](4)(-4)+(4)(2)+8=0[/tex] [tex]-16 + 8 + 8 = 0[/tex] [tex]-8 + 8 = 0[/tex] [tex]0 = 0[/tex]Therefore, x = -4.
please help me! i dont know how to solve this problem
Answer:
(E) 3
Step-by-step explanation: solve mo dapat pano mo malaman
pero I hope I helped
The sum of three consecutive odd integers is 2,193. What are the integers? (show your work)
Answer: x = 729
Step-by-step explanation:
729+731+733 = 2193
x+(x+2)+(x+4) = 2193
Randi made nine scarves from 4 m of
fabric. How many scarves can she make
from 28 m of the same fabric?
Answer:
7 scarves
Step-by-step explanation:
you divide 28 by 4
The points H, I, J and K all lie on the same line segment, in that order, such that the
ratio of HI: IJ: JK is equal to 2:1: 2. If HK = 25, find JK.
Step-by-step explanation:
Given,
ratio of HI, IJ , Jk = 2 : 1 : 2
let their value be
HI = 2x
IJ = x
JK = 2x
HK = 25
according to question,
HI + IJ + JK = Hk
now, after inserting the values we got,
→ 2x + x + 2x = 25
→ 5x = 25
→ x = 25/5 = 5
→ x = 5
therefore value of,
HI = 2x → 2×5 = 10
IJ = x → 5
JK = 2x → 2×5 = 10
Hence, value of JK is 10.
hope this answers helps you dear...take care and may u have a great day ahead!
Based on the table which best predicts the end behavior of the graph of f(x)?
Answer:
Step-by-step explanation:
As x approaches infinity, y approaches negative infinity
As x approaches negative infinity, y approaches infinity
Please help!!! ASAP!!
Step-by-step explanation:
the total length of all lines is 100.
there are 2 times a d line, and 5 times an x line.
well, what we have here is an equation :
2d + 5x = 100
2d = 100 - 5x = 5×(20 - x)
d = 5/2 × (20 - x) = 50 - 5x/2
take whatever form fits best to what your teacher does in class.
30m of material costs £210.how much would 18 m of this material cost?
Step-by-step explanation:
given,
30m of material cost = £210
so, cost of 1m material = 210/30 = £7
therefore, cost of 1m material is £7
now,
cost of 18m Material = 18 × 7 = 126
therefore, cost of 18m material is £126.
hope this answer helps you dear!
Answer: 126
Step-by-step explanation:
30 m of material cost 210
1 m of material cost [tex]\frac{210}{30}[/tex] Or 7
18 m of material cost 7 × 18 = 126
please give me a brainliest answer
The diagonal of a rectangle is 5 units long, and one side is 3 units long. How many units long is the perimeter of the rectangle?
Answer:
16
Step-by-step explanation:
Perimeter is the total length/ distance around the shape so 3+3=6 5+5=10 6+10=16
18t + 11v = w - 2t
Solve for t
Answer:
11v-w= -20t
Step-by-step explanation:
combine like terms
20t+11v=w
isolate variable
11v=w-20t
11v-w= -20t