Answer:
1
Step-by-step explanation:
-3a+4 =7
-4. _4
-3a=3
divide by -3 on both sides
a=-1
3+4=7
Answer:
a= [tex]-3\frac{2}{3}[/tex] or ≈ -3.66
Step-by-step explanation:
-(3a+4)=7
-3a-4=7
Add 4 to both sides
-3a=11
Multiply both sides by -1
3a= -11
Divide both sides by 3
a= [tex]-3\frac{2}{3}[/tex]
Solve for y: 4y + 4 = -8
Answer: YOUR ANSWER IS -3
Step-by-step explanation:
4y + 4 = -8
-4 -4
___________
4y = -12
Divide -12 by 4
Y = -3
Please Answer Quick!!
The diameter of a big circle is 36 feet. What is the ratio of the circle’s radius to its diameter?
Answer:
In ALL circles, the diameter is twice the radius.
Therefore, the ratio of of radius to diameter in ALL circles is .5
Step-by-step explanation:
Answer:
1 : 2
Step-by-step explanation:
Diameter = 36 ft
Therefore, radius = 36/2 = 18 ft
Ratio of the circle’s radius to its diameter
[tex] = \frac{18}{36} \\ \\ = \frac{1}{2} \\ \\ = 1 \: : \: 2[/tex]
Anyone know the answer to this?
Answer:
3x-5+19-x+2x
5x-x=14
4x=14
Hope that helps
A bicycle tire is 28 inches in diameter. Approximately how far does the bicycle move forward
each time the wheel goes around? (Use as an approximation for 7r.)?
Answer: 88 inches
Step-by-step explanation:
So the radius of the tire is computed by dividing it in half. We know that in one round of the wheel, the wheel moves to a distance equal to the circumference of the wheel. So each time the wheel goes around, the bicycle moves about 88 inches 88 i n c h e s forward.
Answer:
The answer would be=
88 Inches!
Step-by-step explanation:
I hope you do well!
If a=4, b=5 and c=7, calculate 2a + 3c
Answer:
2a + 3c = 29
Step-by-step explanation:
2a + 3c =
= 2×4 + 3×7
= 8 + 21
= 29
What is the area of a circle that has a diameter of 112? USE 3.14 FOR PI!!!!
DO NOT ROUND. *
Your answer
Answer: 9852.034562
Step-by-step explanation:
Answer:
=9847.04
Step-by-step explanation:
The diameter is 112
The radius is 1/2 of the diameter
r = d/2 = 112/2 =56
The area of a circle is
A = pi r^2
= 3.14 (56)^2
=9847.04
how do i calculate the first quartile and the third quartile???
!!!please help!!!
Answer: The Median: 78, The First Quartile: 63, and The Third Quartile: 99
Step-by-step explanation: Ok, so let's put the data set from least to greatest....
(63, 63, 76,) (77, 79,) (84, 99, 99)
First Quartile Third Quartile
First, let's find the median, since you made a little mistake...
77 + 79 = 156
156 ÷ 2 = 78
The median is 78!
Now, let's determine the first quartile and the third quartile.
For the the first quartile/third quartile it'll be the middle number, if it's even we'll do the same extra step just like we'll do for the median. In this case it's not even therefore...
First Quartile: 63
Third Quartile: 99
I hope this helps!
Given the table of values below, which of the following ordered pairs are
found on the graph of the inverse function?
х
-2
-1
0
1
2
f(x)
12
10
8
6
4
Answer:
(12,-2), (10,-1), (8,0), (6,1) and (4,2).
Step-by-step explanation:
If a function is defined as
[tex]f(x)=\{(x,y):x\in R,y\in R\}[/tex]
then its inverse is defined as
[tex]f^{-1}(x)=\{(y,x):x\in R,y\in R\}[/tex]
It means coordinates of ordered pairs are interchanged.
From the given table it is clear that the function passing through the points (-2,12), (-1,10), (0,8), (1,6) and (2,4).
Using the above definition, we can say that the inverse function passing through the points (12,-2), (10,-1), (8,0), (6,1) and (4,2).
Therefore, the required ordered pairs are (12,-2), (10,-1), (8,0), (6,1) and (4,2).
"Two complementary angles are not congruent."
Answer:
40 and 50,20 and 70
Step-by-step explanation:
complementary angles are angles that added equal to an angle of 90 degrees and it says they are not congruent so the two angles are diferent
the given statement "Two complementary angles are not congruent" is not true. The counter-example is 45°+45°=90°.
The given statement is "Two complementary angles are not congruent."
What are complementary angles?Two angles are Complementary when they add up to 90°.
Now, if we add 45°+45°=90°
Therefore, the given statement "Two complementary angles are not congruent" is not true. The counter-example is 45°+45°=90°.
To learn more about complementary angles visit:
brainly.com/question/5708372.
#SPJ2
The shortest route from London to Liverpool is 210 miles. A lorry is expected to take 3.5 hours to travel this route. The lorry actually travels by a different route which increases the distance by 20%, but it still arrives in 3.5 hours. By how many more mph than the expected speed does the lorry travel?
Answer:
72 mph
Step-by-step explanation:
Please give brainliest
You have distance =210 miles
Increase it by 20%
210+(210*0.2) = 252 miles I wrote 0.2 instead of writing 20%/100% hope you understand.
The new route is 252 miles
Time travelled = 3.5 hours
Speed=distance/time
Speed = 252/3.5 = 72 mph
Help mee pweaseeeeeee :)))
Answer: .4
Step-by-step explanation:
.
Which expression is equivalent to the given expression?
(6n-5)(3n-3)?
A.36n11
B.54n30
C. 36n30
D.54n11
Answer:
The answer is C = 36n30
Step-by-step explanation:
1. How many solutions does the following equation have?
2x2 – 3x + 5 = 2x2.*- 3x + 5
no solution
- 2x -2% -2X
O
o -5% +5=0
2. Use the quadratic formula to solve the equation. If necessary, round to the nearest
hundredth.
x2 + 3 = -4x+3=- 4x
3- 4x
3. Solve the equation using the Zero-Product Property,
4p(5p+ 10) = 0
20p²+40p=0
-20p^2-20p^2
I just want to know if I got it right?
Answer:
1. The equation has no real solutions
2. [tex]x_1 = -1 [/tex] and [tex]x_2 = -3 [/tex]
3. p = 0 and p = -2
Step-by-step explanation:
1. Eq: x² - 3x + 5
discriminant: b² - 4(a)(c) = (-3)² - 4(1)(5) = 9 - 20 = -19 < 0
Therefore, the equation has no real solutions
2. Eq: x² + 3 = -4x
0 = x² + 4x + 3
[tex]x = \frac{-b \pm \sqrt{b^2 - 4(a)(c)}}{2(a)} [/tex]
[tex]x = \frac{-4 \pm \sqrt{4^2 - 4(1)(3)}}{2(1)} [/tex]
[tex]x = \frac{-4 \pm 2}{2} [/tex]
[tex]x_1 = \frac{-4 + 2}{2} [/tex]
[tex]x_1 = -1 [/tex]
[tex]x_2 = \frac{-4 - 2}{2} [/tex]
[tex]x_2 = -3 [/tex]
3. Eq: 4p(5p+ 10) = 0
Zero-Product Property states that:
4p = 0 or 5p + 10 = 0
The first solution is p = 0. The second is:
5p + 10 = 0
5p = -10
p= -10/5 = -2
What is the standard form of y – 8 = 2(x + 3)?
Question 14 options:
a)
y = 2x + 14
b)
2x + y = 14
c)
y – 2x = 11
d)
2x – y = –14
Answer:
A
Step-by-step explanation:
So first you would distribute the 2
y - 8 = 2x + 6
Then you add 8 to both sides
y = 2x + 14
So your answer is A
In the diagram shown, m <AOC =124 and OA=10 cm. Which of the following is closest to the length of
arc ABC?
(1) 20.6
(2) 21.6
(3) 40.4
(4) 41.2
Answer:
(2) 21.6
Step-by-step explanation:
The segment OA is the radius of the circle
The arc of the complete circle is equivalent to its perimeter
perimeter = 2*π*radius = 2*π*10 = 62.83 cm
This arc is proportional to 360°. So, for 124°:
360°/124° = 62.83 cm/ x cm
x = 124*62.83/360
x = 21.6 cm
find the inverse of A(r)=15+3r
Answer:
A(r)=15-3r
Step-by-step explanation:
switch the sign of 3r to make it -3r
Javier is building a model train. He has enough track for a train that is
2.5 meters long. Does Javier have enough track for a train with 15 cars?
Each car will be 16 centimeters long.
Yes, Xavier have enough track for a train with 15 cars because the cars will take up 2.4 meters, leaving them with an extra .1 meters of length.
What is unit conversion?A unit conversion expresses the same property as a different unit of measurement. For instance, time can be expressed in minutes instead of hours, while distance can be converted from miles to kilometres, or feet, or any other measure of length.
Given that, Xavier is building a model train. He has enough track for a train that is 2.5 meters long. We need to find if Javier have enough track for a train with 15 cars or not if each car will be 16 centimetres long
The length of each car is 16 cm
Therefore, length of 15 cars = 16 × 15 = 240 cm
Converting the units,
240 cm = 2.4 m
Since, The train is 2.5 m long, and he has enough track for it.
Hence, Yes, Xavier have enough track for a train with 15 cars because the cars will take up 2.4 meters, leaving them with an extra .1 meters of length.
For more references on unit conversion, click;
https://brainly.com/question/19420601
#SPJ5
Add & subtract comple
(-14+ 3i) - (14i) =
Express your answer in the form (a + bi).
Stuck?
Answer:
(-14+3i)-(14i)
14i-3i
= -11i
Answer =(-14+11i)
What similarity property, if any, can be used to show that the following two triangles are similar
A. Not enough information given
B. AA
C. SAS
D. SSS
Please answer this
Which is the best reason why 2/3 is the exact quotient for 1/4 divided 3/8
Because if you divide 1/4 by 3/8 you get 2/3.
What reason allows the following statement to be true?
Given AB + CD = JK and CD = 5, then AB + 5 = JK
Answer: Subtituting CD =5 in AB + CD = JK
Step-by-step explanation:
Hi, to answer this question we have to analyze the information given:
• AB + CD = JK (equation 1 )
• CD = 5 (equation 2)
So, we simply have to combine the equations.
Substituting CD =5 in equation 1:
AB + CD = JK
AB+(5) =JK
Feel free to ask for more if needed or if you did not understand something.
In the given triangle ABC, find DE. answers: 20 5 10 2.5
Answer:
5
Step-by-step explanation:
Let's call the length AD y.
[tex]\dfrac{x+2}{y}=\dfrac{8x-14}{2y} \\\\\\2(x+2)=8x-14 \\\\\\2x+4=8x-14 \\\\\\4=6x-14 \\\\\\6x=18 \\\\\\x=3 \\\\\\DE=x+2=3+2=5[/tex]
Hope this helps!
directions for constructing the orthocenter of a triangle?
Answer:
6IMRYUr5yt
Step-by-step explanation:
rfuiyrbfbnggrnteetS32
I don’t understand this question & I need to turn this in today.
Answer:
see below
Step-by-step explanation:
The blue graphs had 2 real solutions since it crosses the x axis twice
The yellow graph has no real solutions since it does no cross the x axis
The red graph has one solutions since it touches the x axis
Yasmine earns $54 for dog walking. She walks her neighbors dog 12 times.
Write an equation that represent how to find the amount Yasmine earns per dog walk explain what your variable represents.
How much does Yasmine earn per dog walk.
Answer:
$4.5
Step-by-step explanation:
If the total price Yasmine earns was $54 and she walked her neighbors dog 12 times then we need to divde them.
54/12
= $4.5 So she earns $4.5 every time she walks her neighbors dog
Paul worked for a video streaming company that has two monthly plans to choose from:
Plan 1: A flat rate of $7 per month plus $2.50 per video viewed
Plan 2: $4 per video viewed
Which plan would be the cheapest for Paul if he viewed 5 videos a month? Explain
Answer: Plan A
Step-by-step explanation:
7 + (2.50x5) = ?
7 + 12.50 = 19.50 therefore plan A = $19.50
Plan B = 5x4 = 20 therefore plan B = $20.00
I just need answer. Pls
Answer:
Step-by-step explanation:
I will give brainliest answer
Answer:
The radius of circle is 162 units
Please answer the question stated below
What is 40% of 160?
A. 20
B. 40
C.
32
D. 64
E.
75
it's 64
AnswerD. 64
Step-by-step explanation:
Answer:
D.) 64
Step-by-step explanation:
