Answer:
x=3
Step-by-step explanation:
2+6x=20
6x=20-2
6x=18
x=3
The value of the number is 3
What is the measure of
Angles are not necessarily drawn to scale.
I hate math
x= 139°
180-41= 139°
hope this helped:)
What is the volume?
1 mm
1 mm
1 m
Answer:
volume equals length times width times height
Step-by-step explanation:
b(n)=-8-2(n-1)
Find the 9th term
Answer:
The 9th term will be -24
Step-by-step explanation:
The 9th term will be equal to
[tex]b_{n}[/tex] = - 8 - 2(n - 1)
[tex]b_{9}[/tex] = - 8 - 2(9 - 1)
[tex]b_{9}[/tex] = - 8 - 18 + 2
[tex]b_{9}[/tex] = - 24
Which multiplication problem does the model represent?
Answer:
2/3 * 1/3 = 2/9
Step-by-step explanation:
You see the top 2 lines being shaded which is 2/3's of the whole square.
The second shaded part only covers 1/3 of the whole square.
Thus, you multiply both parts to figure out the darkest shaded part!
Which pairs show equivalent expression
Hey blink!!!!!!! second one is your answer
jus wondering is this correct??
Answer:
Yes!
Step-by-step explanation:
PLEASE SOMEONE HELP ME WITH THIS PROBLEM
Answer:
1.28
2. -3.5
3.-10.5
Step-by-step explanation:
1.-0.0035 · 12000+70= 28
2. -0.0035 ·21000+70=-3.5
3. -0.0035 ·23000+70=-10.5
I hope this helps
Simplify (1/2)^4
1/10
1/8
1/4
Answer:
1/8
Step-by-step explanation:
[tex] \bigg( \frac{1}{2} \bigg)^{4} = \\ \\ = \frac{1}{8} [/tex]
I have 7 cups of yogurt give my sister 3 3/5 cup how yogurt remains?
Answer:
3 2/5 cups remaining
Step-by-step explanation:
To subtract fractions, they need a common denominator. I am using 5.
7 is equal to 35/5. Make 3-3/5 into an improper fraction of 18/5.
Now subtract: 35 - 18 = 17. There is 17/5 remaining.
Make it into a mixed number and you will get 3 2/5 remaining.
what is the mean of this data set? 11,12,16,11,15,19,13
Answer:
13.857142
Step-by-step explanation:
Took a lot of math.
please help im so tired its not even funny how tired i am pleaase help lol
What is the common factor in 5w + 10w?
10w
15w
w
10
Answer:
15w
Step-by-step explanation:
5+10=15 ..........,................ I think.
Somebody help me asap I’m giving brainliest!
Answer:
C becausee I'm trying to help
beam of light and a mirror study the behavior of light
Which expression is equivalent to 3d + 1?
Answer:
3d + 1
I'm pretty sure it's the same thing.
is of 12 equal to 9?
no
Answer:
12=9
Obviously
.................
Previous studies reported that teenagers spent 8.5 hours per week, on average, on the phone. This mean is supposed to have increased, to test this hypothesis, a random sample of 500 teenagers were interviewed about how many hours per week they spent on their phones. The sample mean was 10.5 hours with a sample standard deviation of 2.35. Conduct a hypothesis test. The null and alternative hypotheses are:
Answer:
Since the calculated value of Z= 19.029 is much greater than Z (0.05) = 1.645 and falls in the rejection region we reject the null hypothesis and conclude that mean of teenagers spending time on phone per week has increased.
Step-by-step explanation:
1) Formulate the null and alternate hypothesis as
H0 : μ≤ 8.5 against the claim Ha: μ > 8.5
2) Choose the significance level ∝ =0.05
3) The test statistic under H0 is
Z= x`- μ/ s/√n
4) The rejection region is Z≥ Z(0.05)= 1.645
5) Computing the value of Z from sample information we get
Z= 10.5-8.5/ 2.35/ √500
Z= 2/ 2.35/ 22.361
Z= 19.029
Since the calculated value of Z= 19.029 is much greater than Z (0.05) = 1.645 and falls in the rejection region we reject the null hypothesis and conclude that mean of teenagers spending time on phone per week has increased.
find a ! please :))))
Answer:
21.8 cm
Step-by-step explanation:
[tex] \\ 180 - 75 - 31.8 = 37.2 \\ \frac{ \sin(75) }{22} = \frac{ \sin(31.8) }{12} = \frac{ \sin(73.2) }{a} \\ a = \frac{22 \times \sin(73.2) }{ \sin(75) } = \\ a = \frac{21.06}{0.9659} = 21.8[/tex]
find an expression which represents the sum of (-6x + 9y) + (-10 X - 6y)
Here sorry if this doesn't help
Which of the following transformations shows that figure C is congruent to figure C'?A.reflection in the x-axis
B.rotation 90 counterclockwise about the origin
C.rotation 180 counterclockwise about the origin
D.rotation 270 counterclockwise about the origin
Answer: D.rotation 270 counterclockwise about the origin
Step-by-step explanation:
look at the equations below
ax+ 3y=-5
2x-6y=10
Answer:
I love algebra anyways
The ans is in the picture with the steps how i got it
(hope this helps can i plz have brainlist :D hehe)
Step-by-step explanation:
Answer:
Step-by-step explanation:
I assume that they want the value of a when the solution exists.
2(ax+3y)+2x-6y=2(-5)+10
2ax+6y+2x-6y=-10+10
2ax+2x=0
ax+x=0
ax=-x
a=-1
You could then solve for x and y if you wanted x=5 and y=0
Unless a was a typo :)
Fernando had 2 children. Each of their children had 2 children, and each of these
He had 2 children. How many grandchildren did Fernando have?
Answer:
4 grand children
Step-by-step explanation:
Answer:
6 grandkids
Step-by-step explanation:
fernando has 2 kids and each had their own sets of kids so
1 fernando's kid 1 fernando's kid
2 grandchildren 2 grandchildren
=4 grandchildren in total
you said the grandchildren had kids as well so
2+4=6
Kris has saved $3500 to open a cupcake shop. She has to pay a security deposit of $800 and $500 each month for rent. How many months will her savings last?
Answer:
His savings will last 2 months
Step-by-step explanation:
Kris has $3500
he has to pay $1300 a month=
2 months
Select all the expressions that are equivalent to 4b+4+4b+2-+b
Answer: 9b+6
Step-by-step explanation:
Abigail bought 6/8 of a pound of turkey at the deli She used 2/4 of it to make sandwiches for lunch how much of the turkey did Abigail use for sandwiches
Answer:
2/8
Step-by-step explanation:
I think this is subtraction (if not just tell me i'll edit)
6/8 - 2/4 = 6/8 - 4/8 = 2/8
Answer:
4/8
Step-by-step explanation:
2/4 is equivalent to 4/8
She was 2/8 left over btw
help please will mark brainliest
Answer:
I think 1, 4, 5 and 7
Step-by-step explanation:
what is the range of the data below 6.5,7.6,9.1,2.4,8.8
Answer:
the range would be 6.7 or if you want it to be rounded up, it would be 7.
Step-by-step explanation:
you subtract the highest number by the lowest number. 9.1-2.4= 6.7 or if you need it to be rounded, 7.
The range of the data set given is 6.7.
What is range in statistics?In statistics, the range of a set of data is the difference between the largest and smallest values, the result of subtracting the sample maximum and minimum. It is expressed in the same units as the data.
Given is a data set, we need to find the range of the data set,
S = 6.5, 7.6, 9.1, 2.4, 8.8
The range = max value - min value
= 9.1 - 2.4 = 6.7
Hence, the range of the data set given is 6.7.
Learn more about range, click;
https://brainly.com/question/7038717
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1). Solve for n n - 63 = 126 *
Answer:
n=189
Step-by-step explanation:
[tex]n-63=126\\n=126+63\\n=189[/tex]
I hope this helps! :)
Brainliest? ✨
I dunno this answer... pwease help... if you're smart
Answer:
H: (2, 14)
O: (4,15)
U: (6,14)
S: (2,10)
E: (6,10)
Step-by-step explanation:
the image on the grid is after doin x- 1 and y-7
to get the preimage do the inverse , x + 1 , y + 7
note- a coordinate is written as (x,y)
so, add 1 to all the x's and 7 to all the y's on the coordinates on the grid!
and sorry for asking but, if this is right could i please get a thanks & brainliest recently a moderator deleted ALL my answers (over 400 answers) causing me to lose over 3k points so id appreciate it alot thanks xoxo
Me. James wants to divide 2 hours of computer time equally among 10 students. What fraction of computer time will each student get?
Answer:
12 min each student
Step-by-step explanation:
Brainliest to best answer :D
The difference of two numbers is 63. The sum of two numbers is 111. What are the two numbers?
Answer:
Step-by-step explanation:
Let b>a
b-a=63
b=63+a
a+b=111, substituting 63+a from above in this equation gives you
a+63+a=111
2a+63=111
2a=48
a=24, since b=63+a
b=63+24
b=87 so the two numbers are
24 and 87