Check my work?
i’ll mark brainliest:)
yes, you’re right. .
Answer:
looks good to me good job! :D i need 4 brainlits
Step-by-step explanation:
what is the expanded form of .039
Answer:
0.039
Step-by-step explanation:
Expanded Notation Form:
0.039 =
0
+ 0.0
+ 0.03
+ 0.009
Expanded Factors Form:
0.039 =
0 × 1
+ 0 × 0.1
+ 3 × 0.01
+ 9 × 0.001
Expanded Exponential Form:
0.039 =
0 × 100
+ 0 × 10-1
+ 3 × 10-2
+ 9 × 10-3
Those are the way you can express .039 in different expanded forms
Hope this helps
Solve the system by substitution.
8x – y = 42
-43 - 6 = y
Answer:
x = .875 y = -49
Step-by-step explanation:
(8x - y = 42)
(y = -43 - 6) or (y = -49)
Since we have our y value, we can plug it into our top equation:
8x -(-49) = 42
8x + 49 = 42
-42 -42
8x = 7
/8 /8
x = 0.875
To check the work:
8(0.875) - 49 = 42
7 - 49 = 42
2. Find the radius of a sphere of surface area 34 cm.
Answer:
r= 1.64
Step-by-step explanation:
6 x 2 1/5 estimated please hurry
6 x 2 1/5 estimated is [tex]\frac{6x^{22} }{5}[/tex]
~~Hope dis helpz u~~
[tex]\frac{1}{x {}^{2} - 3 } = \frac{ \sqrt{3} }{x + \sqrt{3} } - \frac{2}{ \sqrt{3} - x } [/tex]
can someone please solve this?
Answer:
[tex]\boxed{\textsf{ The value of x is \textbf{ 8 + 6}$\sqrt{3 }$.}}[/tex]
Step-by-step explanation:
Here we are given a equation which we need today simplify and solve for x .The given equation to us is :-
[tex]\sf\implies \dfrac{1}{x {}^{2} - 3 } = \dfrac{ \sqrt{3} }{x + \sqrt{3} } - \dfrac{2}{ \sqrt{3} - x } [/tex]
Let's simplify the equation :-
[tex]\sf\implies \dfrac{1}{x {}^{2} - 3 } = \dfrac{ \sqrt{3} }{x + \sqrt{3} } - \dfrac{2}{ \sqrt{3} - x } \\\\\sf\implies \dfrac{1}{x^2-3}=\dfrac{\sqrt3}{x+\sqrt3}-\dfrac{2}{-(x-\sqrt3)}\\\\\sf\implies \dfrac{1}{x^2-3}=\dfrac{\sqrt3}{x+\sqrt3}+\dfrac{2}{x-\sqrt3}\\\\\sf\implies \dfrac{1}{x^2-3}=\dfrac{\sqrt3(x-\sqrt3)+2(x+\sqrt3)}{(x+\sqrt3)(x-\sqrt3)}\\\\\sf\implies \dfrac{1}{x^2-3}=\dfrac{\sqrt3x-3+2x+2\sqrt3}{x^2-3}\\\\\sf\implies 1=\sqrt3x-3+2x+2\sqrt3 \\\\\sf\implies \sqrt3x+2x = 4-2\sqrt3\\\\\sf\implies x(\sqrt3 +2)=4-2\sqrt3\\\\\sf\implies x =\dfrac{4-2\sqrt3}{\sqrt3+2}\\\\\sf\implies x =\dfrac{ (4-2\sqrt3)(\sqrt3-2)}{(\sqrt3+2)(\sqrt3-2)}\\\\\sf\implies x =\dfrac{-8-6\sqrt{3}}{3-4}\\\\\sf\implies \boxed{\pink{\sf x =8+6\sqrt3}}[/tex]
what is the area of the figure shown?
Answer:
The are of the figure is 28 cm
Step-by-step explanation:
I did the measurements for each individual figure, and added them together
1) Lee's gross salary is $6000 per month, but federal and state income
tax totals about 30%. What is Lee's net earnings per month?
Hi there!
Let see...
100% subtract 30% would be 70%.
70% multiply by 0.01 is 0.7 or 0.70.
Multiply 0.70 by 6000.
It would be... 4200$.
Subtract 6000$ by 4200$.
The answer would be 1800$.
So this means that Lee would get 4200$ per month and the state income tax would be 1800$.
Lee's net salary is $4200
What are percentages?A percentage is a number or ratio that can be expressed as a fraction of 100. If we have to calculate the percent of a number, divide the number by the whole and multiply by 100. Hence, the percentage means, a part per hundred. The word percent means per 100. It is represented by the symbol “%”
Given here: Lee's gross salary is $6000 per month, but federal and state income tax totals about 30%. Therefore his gross salary is
6000×(1-30%)=$4200
Hence, his net salary is $4200
Learn more about percentages here:
https://brainly.com/question/29306119
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Subtract 2 from 9 times y
Answer:
9
Step-by-step explanation:
Answer:
9y-2
Step-by-step explanation:
9×y-2
9×y=9y
9y-2
PLEASE HELP ME THIS IS DUE ON MONDAY!!
1: You go to a car dealership and want to buy a car that is $18000. What you don't know is that the car has a discount of 20% off. How much would you pay for the car with the discount?
2: you go to the store to buy a coat that normally costs $125. You have a coupon for 15% off but after the discount you have to pay 5% sales tax. How much will you end up paying for the coat?
3: What is 17/39 as a decimal?
4: You go to the mall to buy a pair of shoes. The shoes are $45.00 and you have to add on 6% sales tax. How much is the total that you will pay?
5: When you have multiple percentage increases and/or decreases you can combine the percentages together to solve the problem.
(true or false)
What is a counterexample for 3/4 and 6/8
Answer:
While 3/4 and 6/8 are equivalent fractions, 3/4 and 6/8 of a pizza could represent different amounts.
Measure of angle ABD = 72 degrees and measure of angle one is three times the measure of angle 2. Find the measure of angle two
Answer:
Step-by-step explanation:
I’ll assume this is a triangle with one known angle. The sum of angles must equal 180.
72+3a+a=180
4a+72=180
4a=108
a=27
HELP ME PLEASE!!!!!!!!!!!
Answer:
y - 7 = 5/4(x - 3)
Hope that helps
Answer:
welcome
Step-by-step explanation:
at the end of the day, oranges at a farm market sell for $2.25 per pound and baskets cost $4.00. if serena wants to buy a basket and spend at most $22 total, how many pounds of oranges can she buy
Answer:
So if im entirely correct you said
Step-by-step explanation:
deeznutz
1
#2 Solve for p.
186 = 6p
2
Answer:
31is your answer
186 = 6p
p=186/6=31
HOMEWORK HELP!
model this sine function into a cosine function.
sine function: 67.5sin12(x-7.5)+67.5
Answer:
67.5sin12(x - 7.5) + 67.5
= 67.5[sin 12(x - 7.5) + 1]
= 67.5[sin(12x - 90) + 1]
= 67.5[ sin(12x)cos90 - cos(12x)sin90 + 1]
= 67.5[ -cos12x + 1]
= 67.5 - 67.5cos12x
Step-by-step explanation:
Answer:
that is by graph and solving steps
Step-by-step explanation:
hope it helps
Which of these is a Pythagorean triple?
11,60,62
6,8,15
5,11,12
18,80,82
Answer:
18,80,82
Step-by-step explanation:
82^2= 6724
18^2+80^2= 6724
The square of the largest number is equal to the sum of the squares of the two smaller numbers.
Write an equation of the line through (-2, - 1) having slope
8/7?
Answer:
When slope and one point are known follow instructions on this page:
http://www.1728.org/distance.htm
Calculate "b" from this equation:
b = y -mx where "m" is the slope
We'll use the point given (-2, -1) for "x" and "y"
b = -1 -(8/7) * -2
b = -1 + 16/7
b = 9/7
then we enter "b" and the slope into this equation
y = 8/7x +9/7
y = 1.142857 x + 1.2857142857
Step-by-step explanation:
Review the graph.
On a coordinate plane, a vector has origin (0, 0) and terminal point (negative 2, negative 1).
What is the approximate direction angle of the vector shown?
Group of answer choices
207°
63°
243°
27°
Answer:207
Step-by-step explanation: i just am really good at math
can you help me in that problem
Answer:
(x - 10, y - 13)
Step-by-step explanation:
We have two shapes on a graph and the question is asking for the translation of rhombus QRST to rhombus Q'R'S'T.
Looking at the graph we can see that not only does the rhombus move backwards, but also downward, this indicates that our answers will be in a subtracting symbol.
So all we have to do is count the amount of spaces rhombus QRST went to get to rhombus Q'R'S'T
In the figure below, \overline{XZ}
XZ
start overline, X, Z, end overline is a diameter of circle AAA.
What is the arc measure of minor arc \stackrel{\large{\frown}}{YZ}
YZ
⌢
Y, Z, start superscript, \frown, end superscript in degrees?
Answer:
the answer is 59 (I got it on khan academy)
Step-by-step explanation:
59 degrees is the measures of the minor arc YZ if diameter of a circle is XZ
What is Circle?A circle is a shape consisting of all points in a plane that are at a given distance from a given point, the centre.
Given that diameter of a circle is XZ
We have to find the measure of arc YZ.
11w+5w+4=180
Add the like terms
16w+4=180
Subtract 4 from both sides
16w=176
Divide both sides by 16
w=176/16
w=11
Now plug in w value of yz
yz=5w+4
=5(11)+4
=55+4
=59 degrees
Hence, 59 degrees is the measures of the minor arc YZ.
To learn more on Circles click:
https://brainly.com/question/11833983
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andre and Elena are each saving money. Andre starts with $100 in his savings account
nd adds $5 per week. Elena starts with $10 in her savings account and adds $20 each
jeek.
1. Write an equation in y= mx + b form to represent at what rate Elena and Andre are
aving their money.
Y=mx+b
Answer:
Andre y=5x+100
Elena y=20x+10
the rate Elena is 20
the rate Andre is 5
Step-by-step explanation:
David is looking for the best deal on a laptop that regularly costs $719. Help him compare the price of the laptop at a
store with the price on the store's website by completing the following.
(a)
The store's website is offering the laptop at a 60% discount off the regular price. Ignoring tax and shipping, how
much would he pay for the laptop on the store's website?
(b)
The store is having a sale, offering a 50% discount off the regular price of the laptop. David also has an
in-store-only coupon for an additional 10% off the sale price. Ignoring tax, how much would he pay for the laptop
at the store?
so
(c)
Select the true statement.
David would pay more for the laptop on the website.
David would pay more for the laptop at the store.
David would pay the same amount at the store and on the website.
Continue
Continue
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Answer:
A) $287.60.
B) $323.55.
C) David would pay more for the laptop at the store.
Step-by-step explanation:
A) Given that the store's website is offering the laptop at a 60% discount off the regular price of $ 719, ignoring tax and shipping, the sale price is obtained through the following calculation:
100 - 60 = 40
719 x 0.40 = X
287.6 = X
Therefore, in this case the sale price would be $ 287.6.
B) Since the store is having a sale, offering a 50% discount off the regular price of the laptop, and David also has an in-store-only coupon for an additional 10% off the sale price, ignoring tax, the price of sale is obtained through the following calculation:
(719 x 0.5) x 0.9 = X
359.5 x 0.9 = X
323.55 = X
Thus, the sale price in the present case would be $ 323.55.
checK if x=2 is a solution of a) 7x+5=21 b 2*-2=2
Answer:
First, substitute x for 2 in 7x+5=21.
7 * 2 = 14 + 5 = 19
x = 2 is not a solution of 7x+5=21.
Thirty is 150% of what number?
Answer
thirty is 150% of 20 :)
Answer:
the answer is 45 hope this helps
look at the picture and pls hurry i’m failing algebra and this will help a lot
UmumumumumumumumumumumumuAnswer:
Step-by-step explanation:
Can someone please answer the last one
If the m<1 is 34 degrees and the m<2 is 75,what is the m<3?
what is 0.1 as a fraction
Answer:
1/10
Step-by-step explanation:
1/4 written as a percentage
Step-by-step explanation:
1/4 in percentage
= 1/4 * 100%
= 25%
Answer:
4/4=100%
1/4=100÷4
= 25%