Help. I am trying to solve these questions in math called ‘Two Step Equations’. I need answers
1. -3 x - 5 = 16
2. -4(y-2) = 12
(don’t put links. Or i’ll report you)
Answer:
1. x= -7
2. y= -3.5
Step-by-step explanation:
WILL GIVE BRAINLIEST.
Given the sequence in the table below, determine the sigma notation of the sum for term 4 through term 15.
n an
1 4
2 −12
3 36
the summation of 4 times negative 3 n, from n equals 4 to 15
the summation of 4 times negative 3 n, from n equals 1 to 15
the summation of 4 times negative 3 to the n minus 1 power, from n equals 1 to 15
the summation of 4 times negative 3 to the n minus 1 power, from n equals 4 to 15
Answer:
option D
Step-by-step explanation:
Took the test
Answer: the summation of 4 times negative 3 to the n minus 1 power, from n equals 1 to 15 (option D)
Step-by-step explanation: I took the test and got it right :)
pls help asap !!!!!!!!!!!!!!!!!!!!!
Answer:
For the 1st one: 63
For the second one: 99
Step-by-step explanation:
This is because to find the perimeter, you have to do length+length+width+width=area
So you do 77+77+x+x=280, this should get you x=63
For the second one, to find area you do length×width=area
So you do 59×x=5841 and should get 99.
1.2 mi =
ft someone pls tell me I have a test tomorrow!!
Answer: 6336 ft.
Step-by-step explanation:
If you were asking what 1.2 miles equals in feet, your answer would be 6336 feet. Good luck on your test tomorrow!
Answer:
6336 feet
Step-by-step explanation:
each mile has 5280 feet. Simply multiply 1.2 by 5280 to get your answer
pls help me plss im so STUCK AHhH
PLEASE HELP!!!!
The surface area of a regulation spherical soccer ball is about 484π
square centimeters. If the diameter of the regulation ball is reduced by 50%
to produce a new ball, what is the diameter of the new ball, to the nearest tenth of a centimeter?
A. 5.5 cm
B.7.8 cm
C. 11.0 cm
D.15.6 cm
The diameter of the new ball, to the nearest tenth of a centimeter, is 11.0cm
We have given that,
The surface area of a regulation spherical soccer ball is about 484π
square centimeters. If the diameter of the regulation ball is reduced by 50% to produce a new ball.
We have to determine,
The diameter of the new ball, to the nearest tenth of a centimeter.
What is the surface area of a spherical soccer ball?
The volume of a sphere = 4/3 × πr^3.
Therefore we get,
[tex]\frac{484}{50}= 11.0[/tex]
Therefore we get the diameter of the new ball, to the nearest tenth of a centimeter is 11.0cm.
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Michael has 27 keys, which is 3 times as many as Rachel. Rachel has 8 more keys than Ann. How many keys does Ann
have?
Answer:89
Step-by-step explanation:
Multiply 27 by 3, then add 8 to your answer and you get 89
help what’s the answer
HELP giving brainlest
Answer:
It should be "there ARE 254 counties in texas..."
Step-by-step explanation:
is the wrong one it should be are
Step-by-step explanation:
1.
Frozen chickens will be sold by a major chain of supermarkets only if their weight
is at least 1.2 kg and not more than 3.4
kg.
(a) Represent this information on a number line.
Write an inequality to describe this.
Answer:
In the number line it should be between 1.2 and 3.4
intervals of 0.2
for e.g: 3.4 3.2 3.0 2.8 2.6 2.4 2.2 2.0 1.8 1.6 1.4 1.2
Step-by-step explanation:
Assume chicken to be x
1.2 [tex]\leq[/tex] x < 3.4
Inequality shows a relationship between two numbers or two expressions.
The inequality to describe the chicken that can be sold only when the chicken weighs between 1.2 kg to 3.4 kg is
1.2 ≤ x ≤ 3.4
Where x is the number of chicken.
What is inequality?It shows a relationship between two numbers or two expressions.
There are commonly used four inequalities:
Less than = <
Greater than = >
Less than and equal = ≤
Greater than and equal = ≥
Example:
2 < 3
3x > 2x
3x + 4 > 4x
We have,
Number of chickens that can be sold = x
Chicken is sold only if the chicken weighs between 1.2 kg and 3.4 kg.
This can be represented by inequality as,
1.2 ≤ x ≤ 3.4
Thus,
The inequality to describe the chicken that can be sold only when the chicken weighs between 1.2 kg to 3.4 kg is
1.2 ≤ x ≤ 3.4
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Which statement shows the associative property of addition?
7⋅(4⋅x)=(7⋅4)⋅x
13 + 5a = 5a + 13
(d + 4) + 17 = 17 + (d + 4)
(18 + 6) + y = 18 + (6 + y)
Answer:
D
Step-by-step explanation:
According to the associative property of addition, you can put the parentheses anywhere you like. This is the only one that works.
What is 1/3 of 8 1/4
Answer:
2.75
Step-by-step explanation:
use a calculator
Hope this helps! :)
What is the area of this figure???
Answer:
24 mm squared
Step-by-step explanation:
3 x 4 x 1/2 = area of the triangle
4 x 3 = area of the rectangular top left
1 x 6 = area of the bottom rectangle
3 x 4 = 12 x 1/2 = 6
4 x 3 = 12
6 x 1 = 6
6 + 12 + 6 =24
Question 10:
Find the cosine of angle J.
28
J
N
Answer:
1/14
Step-by-step explanation:
According to SOH CAH TOA;
Cos theta = adjacent/hypotenuse
Since theta = <J
Adjacent = 2
Hypotenuse = 28
Cos <J = adj/hyp
Cos<J = 2/28
Cos<J = 1/14
Hence the value of cosine J is 1/14
Am I correct on these two
Answer:
9. Correct 12. Incorrect, it's D
Step-by-step explanation:
9. There is a 1:2 ratio of blue to red paint to create the shade of purple, so 6:12 would follow the 1:2 ratio so it's correct.
12. 6:14 can be simplified to 3:7 ratio. 8:16 doesn't follow 3:7 (it follows 1:2) so it can't be the right answer. 12:28 follows the ratio so it's right.
solve for x and show your work
2x + a= b
Answer:
x = b-a/2
Step-by-step explanation:
2x + a = b
2x = b-a
x = b-a/2
help me on these please asap
Answer:
1.x=45,2.x=16
Step-by-step explanation:
1.
x+90+45=180(Angles in an adjacent angle)
x=180-135
x=45
2.
7x=112(vertically opposite angle)
x=112/7
x=16
First question refers to the supplementary angle theorem.
To find x, we need to refer to the other angles around it and use it to subtract it from 180°.
90 + 45 + x = 180
135 + x = 180
x = 180 - 135
x = 45°
Second question refers to the vertical angles theorem, where it states that the angles that face in opposite directions are the same.
7x = 112
x = 112 ÷ 7
x = 16°
The Conner family has created a budget for their $3000 monthly income. Based on the budget below, which statement is not true?
savings accounts for 20% of the budget
savings accounts for 20% of the budget
the rent and savings account for more than 50% of the budget
the rent , and, savings account for more than 50% of the budget
the car accounts for 10% of the budget
the car accounts for 10% of the budget
insurance accounts for 15% of the budget
insurance accounts for 15% of the budget
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Answer:
rent and savings account for more than 50% of the budget
Step-by-step explanation:
Answer:
The rent and savings account for more than 50% of the budget
Step-by-step explanation:
It's easy to get confused for this answer because rent and savings ($900 + $600) is 50% of their savings, but it says more. The way to show your work is basically just going through all the answer choices, adding them together, and then multiplying the percentage.
900+600=1500
3000x0.50=1500
That is exactly 50% but not more
Hope this helps!
Help please :) will give brainlist
Answer:
34.9
Step-by-step explanation:
Because if you multiply then divide by 2 that will help you alot.
A spinner has 10 equal sized sections. Two of the sections are green.
A. What is the probability that the spinner will land on green?
B. Use words to describe the probability.
Answer:
Hello love the answer would be 2/10 or reduced 1/5
Answer:
A. 1/5
B. There is a 1/5 probability the spinner will land on green
Step-by-step explanation:
A. 2/10 simplified
B. I just put it into words
G. 9−7+{−2+3−[4−2+(3+2)−7]+8} h. – {- [ (14 - 7) - (32 - 41)]} i. – [(-8 + 3) + (- 21 – 12)] j. 500 – {( 6 – 18 + 4 + 3 + 16 - 10 – 2) – 5 } k. (9 + 7 – 2 + 4) – ( 9 -12 )
Answer:
g. 9−7+{−2+3−[4−2+(3+2)−7]+8} = 11
h. – {- [ (14 - 7) - (32 - 41)]} = + 16
i. – [(-8 + 3) + (- 21 – 12)] = + 38
j. 500 – {( 6 – 18 + 4 + 3 + 16 - 10 – 2) – 5 } = 506
k. (9 + 7 – 2 + 4) – ( 9 -12 ) =21
Step-by-step explanation:
These questions are solved by solving the small brackets, then square brackets and then the curly brackets.
g. 9−7+{−2+3−[4−2+(3+2)−7]+8}
= 9−7+{−2+3−[4−2+(5)−7]+8} Solving inner small brackets
= 9−7+{−2+3−[9−2−7]+8} Solving outer square brackets
= 9−7+{−2+3−0 +8} Solving curly brackets
=9−7+{9} Adding like terms ( adding positive terms)
= 18-7
= 11
h. – {- [ (14 - 7) - (32 - 41)]}
= – {- [ (14 - 7) - (-9)]} Solving inner small brackets
= – {- [ (7) +9]} Solving inner small brackets
= – {- [ 16 ]} Solving outer square brackets
= – {- 16 } Solving curly brackets
= + 16 (-*-= +)
i. – [(-8 + 3) + (- 21 – 12)]
= – [(-8 + 3) + (- 33)] Solving inner small brackets
= – [(-5 - 33)] Solving inner small brackets
=– [( - 38 )] Solving outer square brackets
= + 38 (-*-= +)
j. 500 – {( 6 – 18 + 4 + 3 + 16 - 10 – 2) – 5 }
= 500 – {( 6 + 4 + 3 + 16 – 18 -10 – 2) – 5 } Solving inner small brackets
= 500 – {( 29 – 30) – 5 } Solving inner small brackets
= 500 – {( – 1) – 5 } Solving inner small brackets
= 500 – { – 6} Solving curly brackets
= 500 + 6 (-*-= +)
= 506
k. (9 + 7 – 2 + 4) – ( 9 -12 )
= (9 + 7 + 4– 2 ) – ( -3 ) Solving inner small brackets
= (20 – 2 ) – ( -3 ) Solving inner small brackets
= (18 ) – ( -3 ) (-*-= +)
= 18 +3
=21
Which of the following are solutions to the graph?
Select all that apply:
Question 12 options:
(-6, -4)
(-2, -2)
(-1, 0)
(2, 0)
(4, 1)
(2, 6)
The solutions are the points that belong to the line, these are:
(-6, -4)
(-2, 2)
(-1, 0)
(2, 6)
Which of the points are solutions to the graph?Here we can see that we have the graph of a linear equation. The given points would be solutions if the points lie on the graphed line.
Remember that for a point (x, y), x is the value you need to look in the horizontal axis and y is the value that you need to look on the vertical axis.
Then, from the given points the ones that are on the graphed line are:
(-6, -4)
(-2, 2)
(-1, 0)
(2, 6)
All these points are on the line, thus, are solutions.
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Cual es la diferencia común de la secuencia aritmética 5,8,11,14?
Answer:
a
Step-by-step explanation:
Which linear equation represents the table shown below?
~ y=6x+2
~ y=x+4
~ y=4x+2
~y=4x-2
What is the volume of the cargo area of the moving truck?
A. 696 cubic feet
B. 756 cubic feet
C. 824 cubic feet
D. 888 cubic feet
Answer:
888sq. ft
Step-by-step explanation:
Volume of a rectangular prism = length * width * height
For the given diagram
area of the truck = area of the bigger + area of smaller prism
area of the bigger prism = 6 * 9 * 16
area of the bigger prism = 864sq. ft
Area of smaller prism = 2 * 2 * 6
Area of smaller prism = 24 sq. ft
Area of the figure = 864 + 24
Area of the figure = 888sq. ft
What is the length of BC in the right triangle below?
Answer:
Option A
Step-by-step explanation:
Use the Pythagoras Theorem
Hypotaneous² = base² + height²
BC² = AB² + AC²
BC = √ (AB² + AC²)
BC = √ (12² + 16²)
BC = 20
Answer:
20
Step-by-step explanation:
Here's your solution
=> in a right angle traingle
BC^2 = AB^2 + AC^2
=> BC^2 = 16^2 + 12^2
=> BC ^2 = 256 + 144
=> BC^2 = 400
=> BC = √400
=> BC = 20
hope it helps
Identify which graph can be used to solve each equation. Enter the letter of the correct graph next to the
equation
Answer:
I think the answer is graph B
1. C = x^4 + 3 = 0
2. A = (x − 3)^4 = 0
3. B = (x^2 − 3)^2 = 0
HELPHELPHELP I NEED THE ANSWER TO THIS RIGHT NOW
cora wants to purchase a new bicycle the original price of the bicycle is 75 cents but there is a special sale for 8% off. what equation will calculate the amount of discount?
Answer:937.5
Step-by-step explanation:if your dividing this is the answer
$14,000 is deposited into a savings account with an annual interest rate of 4% compounded continuously. How much will be in the account after 3 years? Round to the nearest cent. $15,784.96 $15,820.00 $43,714.05 $46,481.64 if you could could you please explain thank you.
$14,000 is deposited into a savings account with an annual interest rate of 4% compounded continuously then $15,784 is the amount after 3 years.
What is Probability?
It is a branch of mathematics that deals with the occurrence of a random event.
Given that $14,000 is deposited into a savings account with an annual interest rate of 4% compounded continuously.
We need to find the amount in the account after 3 years.
[tex]A=Pe^r^t[/tex]
where A is the amount of money after t years,
P is the principal amount
r is the annual interest rate
P = $14,000, r = 0.04 and t=3
[tex]A = 14000e^(^0^.^0^4^3)[/tex]
A = 15,784
Hence, $14,000 is deposited into a savings account with an annual interest rate of 4% compounded continuously then $15,784 is the amount after 3 years.
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Eva received a 20% discount when she bought a sweater. The original price of the sweater before the discount was $80. Which was the discount on Eva's sweater?
Answer:
8
Step-by-step explanation:
Yes