Answer:
19
Step-by-step explanation:
straight line=180°
180-123=57
57/3=19
19*3=57
(i will give the brainlyist please help) The solution to the system is (3, 4);
30 – 2y = 1
4y= 7 + 3
True
False
Answer:
true
Step-by-step explanation:
first and second one both make sense
Can someone please help me on this?
Answer: 1. P= 18m A= 72m
2. P= 7in A= 12 in
3. P= 18cm A= 81cm
Step-by-step explanation: For the P or Perimeter you need to add both of the numbers around the box. For A or the area you need to multiply the numbers on the box. You can also find that in the reading above the problem.
Hope this helps!
A sports equipment researcher investigated how different types of wood used to make baseball bats might affect batting. The researcher selected a sample of 80 batters from summer baseball leagues and randomly assigned the batters to one of two groups: the ash bat group or the maple bat group. The mean number of hits for each group was recorded at the end of the season, and the difference in the sample means was calculated. Which of the following is the appropriate inference procedure for analyzing the results of the investigation?
A. A one-sample t-interval for a population mean
B. A one-sample t-interval for a sample mean
C. A matched pairs t-interval for a mean difference
D. A two-sample t-interval for a difference between sample means
E. A two-sample t-interval for a difference between population means
Answer:
E
A two-sample t -interval for a difference between population means
Step-by-step explanation:
i just took the test
The appropriate inference procedure for analyzing the results of the investigation is option E. A two-sample t-interval for a difference between population means
Analysis the results of the investigation:Since the researcher selected a sample of 80 batters from summer baseball leagues and batters assigned to one of the two groups. So this means that the researcher is interested to know whether the mean no of hits should be different for two groups and both groups are independent to each other.
Therefore, The appropriate inference procedure for analyzing the results of the investigation is option E. A two-sample t-interval for a difference between population means
learn more about mean here: https://brainly.com/question/10132345
What is the perimeter of △XYZ?
perimeter=
Step-by-step explanation:
(5+6+7)*2 = 36 correct answer
Answer:
36
Step-by-step explanation:
What is the value of 19-7-15+14
Answer: the answer is 11 :)
Step-by-step explanation: I hope this helped!
Answer:
11
Step-by-step explanation:
19 - 7 = 12 - 15 = -3 + 14 = 11
or, if your brain likes it better, add the positives, then add the negatives, then subtract:
19 + 14 = 33
-7 -15 = -22
33 - 22 = 11
Find a and b please fasttt
Answer:
Step-by-step explanation:
to find the angle A
360-230=130
angle B=180-130=50
how to find the state of degrees in 8x+3?
Which graph represents the same relation as the set {(-3,2).(5.5)(3,3).(3.-2)}}
Please hurry:(?
Answer:
b
Step-by-step explanation:
if the lenghts of the diagonals of a rhombus are 10 cm and 8 cm then its area is
Answer:
40cm square
Step-by-step explanation:
10x8cm=80 cm/2=40cm square
Answer:80cm
Step-by-step explanation:Area=[tex]\frac{dxd}{2}[/tex]
10cm x 8cm=80cm
If point B is at 0, then what are the values of points A and C?
Answer:
Since the line is not scaled, then how do we know for sure. But, we do know that point A is the opposite of point C. For example, if C = 150, then A = -150
Step-by-step explanation:
Since the line is not scaled, then how do we know for sure. But, we do know that point A is the opposite of point C. For example, if C = 150, then A = -150
224 in 8 minutes. Use the unit rate to complete the table of values for the proportional relationship.
X. Y
2. ?
4. ?
6. ?
9514 1404 393
Answer:
see attached
Step-by-step explanation:
It can be convenient to use mental arithmetic methods* to fill in this table.
Since the relationship is proportional the y-value for x=4 will be half that for x=8, so will be 224/2 = 112. Similarly, the y-value for x=2 will be half that for x=4, so will be 112/2 = 56.
Then the y-value for x=6 will be the sum of the y-values for x=2 and x=4, so will be 112 +56 = 168.
If you actually care to find the "unit rate," you can divide the y-value for x=2 by 2 to get the corresponding y-value for x=1: 56/2 = 28. The unit rate is 28.
_____
* Multiplication or division by 2 is simply a matter of doubling or halving. In most cases, it is easy to double a number, or to compute half of it. (If it isn't, you need to review your arithmetic facts.)
For questions 6-10, find The difference of the polynomials, write your answers in descending order
6. (3x^2-9x+4)-(2x^2+2)
Answer:
x^2-9x+2
Step-by-step explanation:
Remove the unnecessary parenthesis.
So 3x^2-9x+4-2x^2+2
Then just combine like terms.
Find the equation of a line that passes through the point (-2, -1) and is
perpendicular to the line with equation y=-2x+8.
Answer:
2y-x=0
Step-by-step explanation:
Please mark as brainliest
Plz plz help I’m failing math and need help
Answer:
5 sweat shirts- $100
8 sweat shirts- $160
9 sweat shirts- $180
12 sweat shirts- $240
Step-by-step explanation:
Each sweat shirt costs $20
OMG PLZZZZZZ HELP ME I REALLY NEED HELP :'( EVERYONE WHO HELPS ME GETS IT WRONG PLZZZ HELP ME IM BEGGING YOU
Answer:
1st Picture: d = -16
2nd Picture: g = -13.8
Step-by-step explanation:
1st Picture: Divide both sides by -11 to balance both sides and get the answer.
2nd Picture: Subtract 1.2 from both sides.
Answer:
Question 6:
We have -12.6 = g + 1.2, so we move the 1.2 to the left side to get -13.8 = g because when you move a number you are essentially minusing that number so 1.2 becomes -1.2 .
Question 7:
We have 176 = -11d so we divide by -11 to get -16 = d.
Hope this helped!
i need the answer for this question
Answer:
z=-13.9
Hope this helped!!
Answer: z= 4.1
Step-by-step explanation:
The Pythagorean Theorem is
c² = g²-6²
False
O True
O No answer text provided.
O No answer text provided.
Answer:
FalseStep-by-step explanation:
It depends on the triangle.
If a is the longest side then it's true, but usually when we talk about Pythagorean theorem we mean that c is the longest side of the right triangle. So:
c² = a² + b²solve the system of equations y=5x y=x^2+4
answer:(1,5) and (4, 20)
how to calculate the Triangle Proportionality Theorem
Step-by-step explanation:
If a line parallel to one side of a triangle intersects the other two sides of the triangle, then the line divides these two sides proportionally.
25°
У
x 120°
y = [ ? ]
Enter
9514 1404 393
Answer:
y = 95°
x = 60°
Step-by-step explanation:
The applicable theorem is the one that says the exterior angle (120°) is the sum of the remote interior angles:
120° = 25° +y
95° = y . . . . . . . . . . subtract 25° from both sides
_____
If you like, you can get there by calculating x (or not):
x = 180° -120°
y = 180° -25° -x = 180° -25° -(180° -120°)
y = 120° -25° . . . . . simplify — notice we didn't actually have to compute x
I WILL GIVE BRAINLEST!!! 20 POINTS!!!
If tomatoes cost 5.30 per pound and i have 9.7 pounds how much would i pay?
1. Ryan is washing windows on a skyscraper. He lowers himself six times,
going down an equal distance each time. In all, Ryan lowers himself 48 ft.
What integer represents the change in Ryan's position each time he lowers
himself? *
Answer:
Ryan went down a total of 8 times
Step-by-step explanation:
He goes down 6 times 48/6 = 8
Help plz helpppppppppppppp
Answer:
A = 45 cm²
Step-by-step explanation:
The area (A) of a trapezium is calculated as
A = [tex]\frac{1}{2}[/tex] h( b₁ + b₂)
where h is the height and b₁, b₂ the parallel bases
Here h = 5, b₁ = 10 and b₂ = 8 , then
A = 0.5 × 5 × (10 + 8) = 0.5 × 5 × 18 = 45 cm²
Mary Lost 30 pounds. Before her diet she weigh 180 pounds. What is the percent of change 
Answer:16.7%
Step-by-step explanation:
150 x
_____=______
180 100
150(100)=180(x)
15000=180x
__________
180 180
x=83.3 repeated
100-83.3=16.7
Simplify (y+1)+4
Help
Answer:
y+5
Step-by-step explanation:
Answer: y+5
Step-by-step explanation:hope this help
what is n if the equation is
n - 2 divided by -3 = -6
Please help me I am having a lot of trouble, thank you
Find the slope of the line between the points: (-2,3) and (3,6)
Answer:
3/5
Step-by-step explanation:
m = y2-y1 / x2 - x1
6-3 / 3 - -2 = 3/5
Answer:
m= [tex]\frac{3}{5}[/tex]
hope this helps!
Step-by-step explanation:
The data represents the height, in feet, of various buildings. Find the Range.
60, 58, 54, 56, 63, 65, 62, 59, 56, 58
PLSS HELP I ON A TESTTT PLS HELP!
Range is about subtracting the lowest number from the highest number!
The lowest number is 54.
The highest number is 65.
65 - 54 = 11
Answer: 11Answer:
11
Step-by-step explanation:
Subtract the highest and lowest values 65-54, and you get 11
Miguel has a garden that has an area of 300 square feet. If the corn in his garden covers 160 square feet, what percent of the garden is corn?
Im not sure of my answer but I got 5.33 and the 3 repeats
Answer:
Im sorry if I'm wrong but I think it's 300+160=460
Answer:
yes your correct but wrong
Step-by-step explanation:
To find the area that's covered in corn you need to first write your fraction.
160/300
After you do that you have to turn it into a decimal.
.53333...
After that you need to turn it into a percent so your final answer will be....
53.333...%
BTW try looking to see if you need to round, normally it tells you to do that
What is a possible value of x If -5
Answer:
ok from the top
Step-by-step explanation:
ok So we back in the mine, got our pick axe swinging from side to side Side, side to side This task a grueling one, hope to find some diamonds tonight, night, night Diamonds tonight Heads up, you hear a sound, turn around and look up, total shock fills your body Oh no it's you again I could never forget those eyes, eyes, eyes 'Cause baby tonight, the creeper's trying to steal all our stuff again