Simplify negative 2 over 3 ÷ negative 7 over 4.
Answer:
[tex]-\frac{2}{3}/-\frac{7}{4}=\frac{8}{21}[/tex]
Step-by-step explanation:
Given: [tex]-\frac{2}{3}/-\frac{7}{4}[/tex]
Take the reciprocal of the divisor: [tex]-\frac{2}{3}/-\frac{4}{7}[/tex]
Multiply the two fractions instead: [tex]-\frac{2}{3}*-\frac{4}{7}[/tex]
Evaluate: [tex]\frac{8}{21}[/tex]
Answer:
8 / 21
Step-by-step explanation:
abc=1/2; b (;b= solve for b)
Answer:
[tex]abc - \frac{b}{2} = 0[/tex]
Help and hurry! Fastest and correct answer gets brainlesst.
No explanation needed
.
Here is a sketch of Noah's bedroom.
He wants to create a scale drawing of his bedroom to show to his designer.
He uses a scale of 1 m = 6 cm to draw his scale drawing.
He draws a 33 cm line to represent wall D.
What is the actual length of wall D according to the above mentioned scale?
Answer:
5.5 m
Step-by-step explanation:
1m = 6cm
x = 33 cm
x = 33 /6
= 5.5 m
**PLEASE ANSWER THE QUESTION BELOW.**
WILL MARK BRAINLIEST IF YOUR ANSWER IS CORRECT, RELIABLE, AND GOOD. PLEASE ADD DECIMALS, THANK YOU!
Please look at the picture provided below.
NO LINKS OR FALSE ANSWERS.
Answer:
80.5 km/h
Step-by-step explanation:
divide the 426.65 by 5.3 hours to get 80.5/1 hr
Add. −14 + (−7) Enter your answer in the box.
Answer:
-21
Step-by-step explanation:
add the numbers -14 and -7 to get -21
[tex] - 14 + ( - 7) \\ \\ - 14 - 7 \\ \\ - 21[/tex]
Hope it help youSelect the correct answer. Which statement best defines a circle?
A. the set of all points in a plane that are the same distance from each other surrounding a given point called the center
B. the set of all points in a plane that are the same distance from a given point called the center
C. the set of all points that are the same distance from a given point called the center
D. points in a plane that surround a given point called the center
Answer:
A. the set of all points in a plane that are the same distance from each other surrounding a given point called the center. hope this helps
Step-by-step explanation:
- Zombie
The statement best defines a circle is A. the set of all points in a plane that are the same distance from each other surrounding a given point called the center.
What is a circle?A circle is defined as a shape consisting of all points in a plane that are given the same distance from a given point called the center.
A circle can be characterized by its center's location and its radius's length.
The statement best defines a circle is A. the set of all points in a plane that are the same distance from each other surrounding a given point called the center.
Learn more about circle here:
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Is -15/6 a rational number?
Answer:
Yes it is a rational number
what is the answer to this question.
Answer:
Step-by-step explanation:
A proportional relationship is one that starts at (0,0) and is usually a straight line relationship.
Of those choices offered, only a is correct by this definition.
will give brainliest !!!!!!
Answer:
(3, 4)
Step-by-step explanation:
Answer:
y = mx + 3
m = Δy/Δx = -3/3 = -1
y = -1x+3
Step-by-step explanation:
Find the equation of the lines perpendicular and parallel to 2x-3y=8 line through the point (-2,-4)
Answer:
y= -1.5x-7 is the equation of the perpendicular line
Here's why:
when we convert 2x-3y=8 to standard form, we get y= 2/3x-8/3. This means the perpendicular line will have a slope of the negative reciprocal of the original one, so the perpendicular slope is -1.5. When we substitute the points (-2,-4) into the equation y=-1.5x+b, we get a b value of -7. So the perpendicular line equation is y= -1.5x-7. You can't the parallel line equation with the points (-2,-4) as it is part of the line 2x-3y=8.
Can someone please help <3
Answer:
number (c)
Step-by-step explanation:
I am not sure about this
Solve the equation M2= 14
Answer:
7
Step-by-step explanation:
M2=14
divide both sides by 2
M2÷2=14÷2
M=7
PLEASEE HELPPPPP
❤️❤️❤️❤️
Answer:
15
Step-by-step explanation:
(2x-1)+(x+17)+(4x-15)=106º
2x+x+4x=7x
-1+17-15=1
7x+1=106º
-1
7x=105º
/7 /7
x= 15
When we analyze the relationships between different quantities, identify their units of measurement, and convert these quantities for equal comparison, we are using dimensional analysis. Dimensional analysis uses a or conversion factor, to change units of measurement while maintaining the value of the measurement. In a conversion factor, the numerator and equal the same amount, just in different For example, to convert 3 miles into feet, you would 3 miles by a conversion factor created from the units of miles and feet. Because 1 mile equals 5,280 feet, two conversion factors can be created:1 mile or 5,280 feet/1 mileMultiplying any number, such as 3 miles, by either of these does not change the number's over value. To determine which conversion factor we use, we place the unit we do want in the bottom, while we put the unit we want to get rid of on th
The steps involved in using dimensional analysis for unit conversion is highlighted below :
The question is incomplete, however, from the portion given, we can see that the text is based on using dimensional analysis to convert units of measurement.
We relate our given unit to the desired or expected unit :
From the text:
To convert 3 miles into feets :
The given unit = 3 miles
The expected or desired unit = feets
The relationship between Given and desired unit :
1 mile = 5280 feets
(5280 feets / 1 mile )
With the unit we want or desire placed at the bottom
To convert a given number of miles to feets ;
Multiply the given value by the relation defined :
Hence,
3 miles to feets :
3 miles × (5280 feets / 1 mile)
Miles cancels out
3 × 5280 feets = 15,840 feets
Another example :
Convert ; 10 minutes into seconds :
1 minute = 60 seconds
given unit = minute ; desired unit = seconds
Relationship = (60 seconds / 1 unit)
10 minutes × (60 seconds / 1 minute)
Minute cancels out :
10 × 60 seconds = 600 seconds
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A washer and a dryer cost $950 combined. The washer costs $ 100 more than the dryer. What is the cost of the dryer?
Answer:
$850
Step-by-step explanation:
washer + dryer = $950
if washer cost=>$100
Therefore; the value of the dryer should be x
$100+x=$950
x=$850
The dryer cost is =>$850
Answer:
The dryer is $425.
Step-by-step explanation:
Washer = 100 + Dryer
Set up an equation:
Variable x = dryer
x + x + 100 = 950
x + x = 850
2x = 850
x = 425
Dryer = 425
Bonus answer:
Washer = 100 + x
Washer = 100 + 425
Washer = 525
Check your work:
Washer + Dryer = 950
525 + 425 = 950
950 = 950
Correct!
Write a rule in coordinate form for the translation from Triangle EFG to Triangle
E'F'G'.
(x,y)-->(x+2, y-1)
(x,y)-->(x+1, y-2)
(x,y)-->( X-2, y + 1)
(x,y)-->(x+3, y +2)
Answer:
1st option
Step-by-step explanation:
Consider the coordinates of F and F'
F (- 3, 4 ) and F' (- 1, 3 )
To go from - 3 → - 1 in the x- directions , means adding 2
To go from 4 → 3 in the y- direction means subtracting 1
Then translation rule is
(x, y ) → (x + 2, y - 1 )
A box had a volume of 456 cubic inches, with a length of 12 inches and a height of 4 inches l. Determine the width of the box.
I kind of understand this question, but I'm not sure how to answer it directly, can someone help please.
6. Andrew is planning on taking a vacation to Santorini, Greece which will cost $5,000. He makes $2900 ser
month. His fixed expenses are $1200 each month. He spends $200 on food and 5% of his monthly salary on
entertainment. How many months will it take to save enough for Andrew to go to Santorini, Greece
Answer: 3 months
Step-by-step explanation:
Answer:
3 1/2 months (Someone please check my math)
Step-by-step explanation:
We can set up this problem by making an equation.
(2900-1200-200-5%)(x)=5000
(1500-5%)(x)=5000
(1425)(x)=5000
5000 divided by 1425 equals 3.50...
My answer would be 3 1/2 months but I could be wrong.
joan has 72 blue and 27 green marbles Benny has 3 times more blue marbles than Joan how many dozen marbles does Benny have
WILL GET MARKED THE BRAINIEST
Which logic statement represents this argument?
If it’s a weekend, I exercise. It’s not a weekend. So, I won’t exercise.
Assume that p represents “It’s a weekend” and q represents “I exercise.”
A.
(p q) p
B.
[(p q) p] q
C.
[(p q) p] q
D.
[(p q) p] q
Write an exponential model given the two points (8,150) and (9,220).
Answer:
Step-by-step explanation:
The exponential model for the given points is y = 6.88(1.47)ˣ
What is exponential function?In mathematics, an exponential function is a function of form f (x) = aˣ, where “x” is a variable and “a” is a constant which is called the base of the function and it should be greater than 0.
Given,
points are (8,150) and (9,220)
Exponential function,
y = abˣ --------(A)
for point (8 , 150)
150 = ab⁸ -------(1)
for point (9 , 220)
220 = ab⁹ -------(2)
Dividing equation (2) by equation (1)
220/150 = ab⁹/ab⁸
Simplifying
1.47 = b
Substituting value of b in equation (1)
150 = a(1.47)⁸
150 = a(21.80)
a = 150/21.80
a = 6.88
Substituting value of a and b in equation(A)
y = 6.88(1.47)ˣ
Hence, y = 6.88(1.47)ˣ is the exponential model for given points.
Learn more about exponential function here:
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28 points asap pls PLSSS
Answer:
Its answer is Commutative property
Step-by-step explanation:
Answer will be Commutative property
hope it helps
Jace buys 12 bottles of orange juice at the corner store for a total cost of $8.04. If each bottle costs the same amount, how much is each bottle of juice?
$0.67 for each bottle of juice
What's the volume of the following is rectangular prism plsssssss will mark brainlist HELPPPP
Answer: 6.75 or 6 3/4
Step-by-step explanation: 3 3/8 x 2 = 6.75 Brainliest please?
49q²-70q+25 resolve into fractors
Answer:
(7q-5)²
Step-by-step explanation:
= 49q² - 70q + 25
= 49q² -35q -35q + 25
= 7q(7q-5) - 5(7q - 5)
= (7q-5) (7q-5)
= (7q-5)²
CMIIW
Answer:
Step-by-step explanation:
49q² -70q +25 , rewrite the first two terms as squares
(7q)² -70q + 5² , compare with a² - 2ab + b² = (a-b)²
a² - 2ab + b²
(7q)² -2(7q)(5 )+ 5², because 70q = 2*35q = 2*7*5*q
We can see that a = 7q and b=5, therefore
49q² -70q +25 = (7q -5)²
We set the equation equal to 0 to find the roots
7q-5 =0, add 5 to both sides
7q =5 , divide both sides by 7
q = 5/7 ≈ 0.714
1^2 + 2^2 + 3^2 +.... + 28^2 + 29^2 + 30^2 = ......
Find the value
Thank you!
Step-by-step explanation:
The sum of consecutive squares is
[tex]1^2+2^2+\dots+n^2=\frac16n(n+1)(2n+1)[/tex]
Therefore
[tex]1^2+2^2+\dots+30^2=\frac16(30)(31+1)(2\cdot30+1) = 9455[/tex]
The chord of a circle of radius 6 ft is 8 ft long . find the distance if the chord from the center.
Referring to attached figure :
given values : -
radius of the circle = 6 ft measure of chord = 8 ft (AB)construction : -
I actually draw a perpendicular on chord from the centre, and we know that the perpendicular from centre on it bisects the given chord, therefore measure of
AC = BC = 1/2 × ABAC = BC = 4 ftnow, let's apply Pythagoras theorem for triangle OCB,
we get :
OC² + CB² = OB²OC² + 4² = 6²OC² + 16 = 36OC² = 36 - 16OC² = 20OC = [tex] \sqrt{20} [/tex] ft OC = [tex] 2\sqrt{5} [/tex] ftAnd here OC is the distance of chord from its center, therefore required answer is [tex] 2\sqrt{5} [/tex]
[tex] \: \: \: \: \: \: \: \: \: \: \: \: \: \: \boxed{ \boxed{ \: \: \: TeeNForeveR \: \: \: }}[/tex]
solve the systems of linear equations using substitution
1.x-4y=-10 2.a-3b=24
2x+y=-11 a+2b=-16
3.4j-5k=27 4.m+n=-3
k=j-7 m-4n=27
Step-by-step explanation:
1 . x - 4y = -10
2x + y = -11
multiply the first equation with 2
2x - 8y = -20
-
2x + y = -11
===============
= 0 - 9y = -9
y = 1
x = -6
-------------------------------------------
2.
a - 3b = 24
-
a + 2b = -16
=============
= 0- 5b = 40
b = - 8
a = 0
and so on
A serving of walnuts is 1/2 of a cup. How many servings are there in a 1 1/2-cup bag of
walnuts?
Answer:
3
Step-by-step explanation:
1/2 a cup makes one serving in 1 1/2 a cup there are 3 servings
