Answer:
plug in whatever you found for x and see if its equal on both sides.
Step-by-step explanation:
Answer:
To check an answer for an equation, you can substitute the answer you've found in place of the variable you solved it for.
The value of the unknown, x, can be plugged into the equation. You can then compare both sides to see if they are equal.
For your given equation, let's substitute 1 for x in the equation you've given.
3x + 5 = x + 7
3(1) + 5 = 1 +7
Simplify this.
3 + 5 = 8
8 = 8
You know that 8 does equal 8, so your value for x is correct.
I hope this helps you ^^
Good luck :)
Need the measurements for 1 2 and 3
Answer:
m, c, and l
Step-by-step explanation:
Find the slope of the line passing through the points (6,6) and (6, -7).
slope: 1
Answer:
The line is a vertical line, which does not have a slope.
Step-by-step explanation:
Slope of a line:
Suppose we are given two points in the format (x,y) of a line. The slope is given by the change in y divided by the change in x.
(6,6) and (6, -7).
Change in y: -7 - 6 = -13
Change in x: 6 - 6 = 0
Slope is a division by 0, which means that the line is a vertical line, which does not have a slope.
Please help me with these, find the missing side. Thank yu only if you know
Answer:
7.48m (3s.f.)
Step-by-step explanation:
Let the missing side be x m.
Applying Pythagoras' Theorem,
x² +5²= 9²
x² +25= 81
x²= 81 -25 (-25 on both sides)
x²= 56
[tex]x = \sqrt{56} [/tex]
[tex]x = 2 \sqrt{14} [/tex]
x= 7.48 (3 s.f.)
∴ The missing side is 7.48 m (3s.f.)
Given x^2 + y^2 = 16, find
name:
center:
Domain:
Range:
x-int
y-int
Answer:
see explanation
Step-by-step explanation:
The equation of a circle centred at the origin is
x² + y² = r² ( r is the radius )
x² + y² = 16 ← is the equation of a circle
centre (0, 0 ) and r = [tex]\sqrt{16}[/tex] = 4
The circle therefore intercepts the x- axis at (4, 0 ) and (4, 0 )
and intercepts the y- axis at (0, - 4 ) and (0, 4 )
Domain is - 4 ≤ x ≤ 4
range is - 4 ≤ y ≤ 4
x- intercepts are x = - 4, x = 4
y- intercepts are - 4, 4
Answer:
The equation of a circle centred at the origin is
x² + y² = r² ( r is the radius )
x² + y² = 16 ← is the equation of a circle
centre (0, 0 ) and r = \sqrt{16}16 = 4
The circle therefore intercepts the x- axis at (4, 0 ) and (4, 0 )
and intercepts the y- axis at (0, - 4 ) and (0, 4 )
PLEASE HELP ME RIGHT NOW
Find the range and interquartile range of the data.
23,45,39,34,28,41,26,33
The range of the data is
The interquartile range of the data is
Answer:
the answer to the range should be 22 but i do not have the interquartile range :(
Step-by-step explanation:
Q7. What is the sum of the first 50 terms of the
series 2 +17 +32 +47 +...?
Answer:
18475
Step-by-step explanation:
given sequence is in A.P.
sum of n terms of an A.P. is =
[tex] \frac{n}{2} \times (2a + (n - 1) \times d)[/tex]
here n = 50
a = 3
d= 15
ans is 18,475
1/3x+8=12 what does x equal and show work
Answer: x = 12
Step-by-step explanation:
subtract 8 on both sides (12-8=4)
now we have 1/3x = 4
multiply 3 on both sides (4 x 3 = 12)
now we have x = 12
Find the missing side of each right triangle. Side c is the hypotenuse. Sides a and b are the legs. Round your answers to the nearest tenth if necessary. b= 12 mi. C= 13 mi
Answer:5
Step-by-step explanation:
a2+b2=c2
a2+12squared=13 squared
169-144=a2
a2=25, now that we have 25 we have to find the square root which is 5.
what is the possessive form of harmonica
Answer:
harmonica’s
Step-by-step explanation:
because it’s talking about multiple and it has apostrophe and an s
A car wash had to make sure their soap lasted 2 days. If they only have one sixth of a gallon of soap, how much should they use each day so it lasts 2 days?
Answer:
1/12th
Step-by-step explanation:
so if you dived 1/6 by 2 you get 1/12 so if you use 1/12 for 2 days then you use 1/6 gallons of soap.
Hoped this helped
Jack is swimming in the 500m race. It takes him 1 minute and 35 seconds to swim 1 lap in an Olympic-sized pool. How long will it take him to swim the 500m race? Show your work and justify your answer.
Answer:
okay information
Step-by-step explanation:
Can I please get help with these math problems? Thanks !
Answer:
1= 240. 2= 1800
girl I suck at this but basically I just multiplied the base and the width then i multiplied the height bye the product of the base and width!
Please Dont Get Mad If Its Wrong.
81 people passed and 27 failed their Functional Skills Level 2 exams.
Write this as a ratio in its simplest form.
Answer:
The ratio of approved and disapproved people in its simplest form is 3:1.
Step-by-step explanation:
Since 81 people passed and 27 failed their Functional Skills Level 2 exams, to write this as a ratio in its simplest form, the common greatest divisor of both numbers must be obtained:
27 is divisible by 1, 3, 9 and 27
81 is divisible by 1, 3, 9, 27 and 81
Therefore, the common greatest divisor of both numbers is 27. So, since 27/27 is equal to 1, and 81/27 is equal to 3, the ratio of approved and disapproved people in its simplest form is 3 :1.
The ratio in its simplest form is 1 : 3.
Definition of ratioRatio expresses the relationship between two numbers. It is the frequency with which a number is contained in another number. The sign used to represent ratio is ':'.
Expressing in the simplest formIn order to express the given number of people that passed and failed the exam, we have to divide both numbers by the highest common factor until both numbers cannot be divided further to yield a whole number.
Common factor of 27 and 81 = 1, 3, 9, 27
Highest common factor = 27
Expressing in the simplest form = 1 : 3
To learn more about ratios, please check: https://brainly.com/question/25927869
Let f(x) = x + 2 and g(x) = x + 4.
Find f(g(f(2)).
Brainliest 15 points
Answer:
10
Step-by-step explanation:
Let's find f(2) first.
f(2) = 2 + 2 = 4
This means it would be f(g(4)).
Then let's find g(4).
g(4) = 4 + 4 = 8
Then, this means f(8).
f(8) = 8 + 2 = 10
what force would be required to accelerate a 1,100 kg car to 0.5m/s?
Answer:
550 N
Step-by-step explanation:
We can solve the problem by using Newton's second law:
[tex]F=ma[/tex]
F is the force required to accelerate the car
m is the mass of the car
a is the acceleration of the car
In this problem, the mass is m=1100 kg, while the acceleration is a=0.5 m/s^2, therefore the force required to accelerate the car is
[tex]F=ma=(1100kg)(0.5m/s^{2} )=550N[/tex]
Hope this helps!
HELP ASAP!
Find the measure of the exterior 1.
A. 110°
B. 10°
C. 70°
D. 150°
don’t give me a link.
Answer:
You answer is C. 70 degrees.
Step-by-step explanation:
Since you have the two other Interior values, you know that when you add them (40+30), and then subtract it from 180, you will find that the other Interior angle is 110 degrees.
Now, an interior and exterior angle must add up to 180 degrees to be a correct angle. Since you know that the interior one is 110, you can figure out that the exterior angle will be 70 degrees.
110+x=180
110+70= 180
180=180
Checks out!
Please like and mark brainliest!
Hope it helps!
you have a spinner divided into 5 equal sections each section is number with a number 1 through 5 theoretically what is the probability of spinning and landing on a five
Answer:
20%
Step-by-step explanation:
1/5 = 20/100 = 20%
Answer:
1/5
Step-by-step explanation:
probability- number of favorable outcomes/ number of total outcomes
in this question,
number of favorable outcomes is 1.
and, the number of total outcomes is 5.
so, probability of spinning and landing on 5 is 1/5.
The difference between -7 and a number x is no more than -2/3
Answer:
Pregunta muy difícil, no creo que pueda resolver este amigo.
Step-by-step explanation:there is no step-by-step thing because honestly don't understand what your trying to say here. Hmm...
Cual es la mitad de 30.6
Answer
Supongo que estás pidiendo la mitad de 30.6 es decir, 15.3
Explanation : 15.3+15.3=30.6
or 30.6 ÷2 =30.6
An 84-square foot tabletop is starting to bow in the middle. Using only the scrap wood in her shop, a carpenter
adds a diagonal support piece to the square shaped tabletop. Which of the following lengths of scrap wood is
closest to the length the diagonal support piece?
Answer:
13.5
Step-by-step explanation:
Answer:
13.5
Step-by-step explanation:
An object changes speed from 10 m/s to 18 m/s in the course of 4 seconds. What is its acceleration? HURRY PLEASE IM TAKING A TEST ASAP 50 points and brainliest
Answer:
2
Step-by-step explanation:
Velocity/Time, or 8/4 equals 2.
Hope this helps!
Find the measure of one exterior angle. Round your answer to the nearest 3 points
tenth if necessary.
Your answer
Find the measure of one exterior angle. Round your answer to the nearest tenth of necessary
Answer:
aikajwbuabsbss
abhsua w
wmhabw
Please help me !!!
I need help I’ll mark brainliest
Answer:
57 sq ft
Step-by-step explanation:
SA = 2(3) + 2(3) + 5(4.5) + 3(4.5) + 2(4.5)
= 6 + 6 + 22.5 + 13.5 + 9 = 57 sq ft
If -x = 20, then x = ?
Answer:
[tex] - x = 20 \\ so \: x \: will \: be \: = - 20[/tex]
Hope it helps!
Answer: x = -20
Step-by-step explanation:
Question: If -x = 20, then x = ?
Multiply both sides of the equation by -1
(-1)(-x) = (-1)(20)
Simplify (remember that multiplying two negative numbers equals a positive number)
x = -20
Leslie tunes musical instruments. Leslie tuned a guitar with 6 strings today. Then she tuned a piano with 37 times as many strings.
How many strings did the piano have?
Choose 1 answer:
(Choice A)
The piano has 422 strings, because 37×6=422.
(Choice B)
The piano has 222 strings, because 37×6=222.
(Choice C)
The piano has 6 strings, because 37÷6=6 remainder 1.
Answer: The piano has 222 strings, because 37×6=222.
Step-by-step explanation:
Since we are informed that Leslie tuned a guitar with 6 strings today and that she then tuned a piano with 37 times as many strings.
This simply means that we have to multiply 37 by 6 strings to get the value of the strings of the piano that she tuned. This will be:
= 6 × 37
= 222 strings.
Leslie tuned 222 strings.
Therefore, the piano has 222 strings, because 37×6=222.
A goliath grouper at the local aquarium ate 112 fish over the course of 8 hours. At this rate how many fish can he eat in 3.5 hours
The size your dog and the number of times you take it to the vet, The amount your drive to school and the amount you have to pay for gas, The number of people at your party and the number of sodas you have in the refrigerator. What correlation are all of these separately. None, Positive, or Negative thanks so much and tell me which one thanks!
1. No correlation
Those things don't really relate to each other.
2. Positive correlation
The more you drive your car, the more you'll have to pay for gas.
3. Negative correlation
More people = less soda.
ASAP NEED HELP ASAP NEED HELP ASAP NEED HELP ASAP NEED HELP ASAP NEED HELP ASAP NEED HELP ASAP NEED HELP ASAP NEED HELP ASAP NEED HELP ASAP NEED HELP ASAP NEED HELP ASAP NEED HELP ASAP NEED HELP ASAP NEED HELP ASAP NEED HELP ASAP NEED HELP ASAP NEED HELP ASAP NEED HELP
Answer:
21) Scalene - Right triangle, 22) Scalene - Right triangle, 23) Equilateral - Acute triangle, 24) Isoceles - Obtuse triangle, 25) Scalene - Right triangle.
Step-by-step explanation:
21) This triangle has three sides of distinct length and a right angle and two acute angles: Scalene - Right triangle.
22) This triangle has three sides of distinct length and a right angle and two acute angles: Scalene - Right triangle.
23) This triangle has three sides of same length and three acute angles: Equilateral - Acute triangle.
24) This triangle has two sides of same length and an obtuse angle and two acute angles: Isoceles - Obtuse triangle.
25) This triangle has three sides of distinct length and a right angle and two acute angles: Scalene - Right triangle.
A pizzeria sells 1 pizza pie for $13, 2 for $23, 3 for $33, and 5 for $53.
Is that a proportional relationship? yes or no?
Answer:
Yes, 10 dollars are added each time
Step-by-step explanation:
A quality-conscious disk manufacturer wishes to know the fraction of disks his company makes which are defective. Step 2 of 2 : Suppose a sample of 884 floppy disks is drawn. Of these disks, 831 were not defective. Using the data, construct the 98% confidence interval for the population proportion of disks which are defective. Round your answers to three decimal places.
Answer:
CI = ( 0, 042 ; 0,079 )
Step-by-step explanation:
If from 884 , 831 disks were OK then 884 - 831 = 53 were defective
x = 53
p = 53/884 p = 0,0599 or p = 5,99 % p ≈ 6 %
and q = 1 - 0,06 q = 0,94
p*n and q*n are big enough
For CI 98 % significance level is α = 2 % α/2 = 0,01
z(score) for α/2 = 0,01 is
z(c) ≈ 2,324
CI = p ± z(c) *√p*q/n
√p*q/n = √ ( 0,94*0,06)/884
√p*q/n = √ 0,0564/884
√p*q/n = 0,00799
CI = ( 0,06 ± 2,324*0,00799)
CI = ( 0,06 - 0,0185 ; 0,06 + 0,0185 )
CI = ( 0, 042 ; 0,079 )