Answer:
-0.38%
Step-by-step explanation:
Divide 31 by 50. 31 / 50 = 0.62.
1 - 0.62 = 0.38
Since it is a decrease in change the percent change is negative.
-0.38%
If a die is rolled, what is the probability of getting an even number?
note: write your answer as a decimal
Answer:
The probability of getting an even number is 0.5
Step-by-step explanation:
No. of events (s)=6
Even numbers (E)=3
So, Probability of getting an even number=(s)/(E)
=6/3
=1/2
=0.5
please please help me
(the number in the photo is 20 and then the letter is x)
(also if you can pls go to my profile and answer the question underneath this one)
Answer:
20°
Step-by-step explanation:
for alternate angles
Answer:
angle x= 20°
I hope it's helps you
The table shows the bowling scores for Bill and Tonya in a given game set.
Who is a better bowler based on the median scores, and why?
Pls no links
Find the value of x.
numbers that lies exactly half way between-2,4 and 1, 7
Answer:
(- 0.5, 5.5 )
Step-by-step explanation:
Using the midpoint formula
Given endpoints (x₁, y₁ ) and (x₂, y₂ ) then the midpoint is
( [tex]\frac{x_{1}+x_{2} }{2}[/tex] , [tex]\frac{y_{1}+y_{2} }{2}[/tex] )
Here (x₁, y₁ ) = (- 2, 4) and (x₂, y₂ ) = (1, 7) , then
midpoint = ( [tex]\frac{-2+1}{2}[/tex], [tex]\frac{4+7}{2}[/tex] ) = ( [tex]\frac{-1}{2}[/tex], [tex]\frac{11}{2}[/tex] ) = ( - 0.5, 5.5 )
If you flip a coin and spin a ten-part spinner numbered from 1 to 10, what is the probability that you will get heads and an even number?
Answer:
1/4
Step-by-step explanation:
Coin 2 sides, 1/2 chance to get heads.
Spinner 10 numbers, 5 even, 1/2 change to get even.
1/2x1/2
1/4
What is the answers to these.
Answer:
A）-28
B）-48
C）45
BRAINLIEST please please helpp!! Brainliest for correct answer!!! Use the triangle formed by the vertices L(-3, 4), A(0, 5), and D(2, 1). L'A'D ' is a triangle formed by using the transformation rule (x, y) -> (-x, y).
A. what type of transformation is LAD -> L'A'D'?
B. Are LAD and L'A'D' congruent or similar?
Answer:A: reflection. B: congruent
Step-by-step explanation:(x, y) -> (-x, y) means that the triangle reflected from the (x, y) part of the graph to the (-x, y) part of the graph.
Cheryl kept track of the changes in temperature one night. At 7:00 P.M. the
temperature was 4°F. The chart below shows the changes in temperature for each of
the next 3 hours. What was the temperature at 10:00 P.M?
Time
8:00 P.M.
9:00 PM
10:00 P.M.
Change in
Temperature (°F)
-2.6
+1.3
-5.7
Answer:
-3
Step-by-step explanation:
Its just what I got if you want the work just reply. It might not be right.
14m to 140cm witch is more
Answer:
14 m is more
Step-by-step explanation:
14 meters = 1400 cm
14 x 100=1400
Answer:
14 m is more
Step-by-step explanation:
1 m = 100 cm
14 m
= 14 x 100
= 1400 cm
1400 cm > 140 cm
14 m > 140 cm
Help me!!!
ln a certain clusters of school of 600 student the student can visit helu, park,both helu,park and neither. just as many visit both as many visit both as many visit neither. one quarter of those who visit park also visit helu. the total number who visit helu is 30 fewer than who visit park only. find how many visit helu only.
Answer:
this is your answer look it once.
question on picture:
Answer:
Formula for tan is opposite over adjacent, so do arctan of 150/100 to get 56.30993247 :))
Step-by-step explanation:
Answer:
B. 34
Step-by-step explanation:
sohcahtoa
tan x = 100/150
tan x = .667
x = 33.7
Dora's car can travel 81 miles using 2.7 gallons of gas. At this rate, how far, in miles, can Dora travel using
73 gallons of gas?
Answer:
2190 miles
Step-by-step explanation:
A box contain 10 green pins 3 are blue and 7 are green. Two pins are randomly taken out of the box without replacement work out the probability that both pins are the same color
Answer:
[tex]P(Z)=\frac{8}{15}[/tex]
Step-by-step explanation:
From the question we are told that:
Sample size [tex]n=10[/tex]
Green pins [tex]x=7[/tex]
Blue pins [tex]y=3[/tex]
Generally the probability of getting two green is mathematically given by
[tex]P(2X)=\frac{7}{10}*\frac{6}{9}[/tex]
[tex]P(2X)=\frac{7}{15}[/tex]
Generally the probability of getting two blue is mathematically given by
[tex]P(2Y)=\frac{3}{10}*\frac{2}{9}[/tex]
[tex]P(2Y)=\frac{1}{15}[/tex]
Therefore the probability that both pins are the same color P(Z)
[tex]P(Z)=P(2Y)+P(2X)\\P(Z)=\frac{7}{15}+\frac{1}{15}[/tex]
[tex]P(Z)=\frac{8}{15}[/tex]
g(1) = 4
g(n) = g(n-1).(-3)
g(3)=
g(1) = 4
g(n) = g(n-1).(-3)
g(3)= 2g(2) = 24 = 16
What is the answer :>
um.. it’s just a black picture. :>
Is (5, 1) a solution to this system of inequalities?
x + 7y ≥ 12
2x + 9y ≥ 20
it's all on the picture please answer
Answer:
60 units squared
Step-by-step explanation:
use for mula A= bh/2
15*8=120
120/2= 60
A=60
Answer:
60
Step-by-step explanation:
area of triangle = (base x height) : 2
base = 15
Height = 8
= ( 15 x 8 ) : 2
= 120 : 2
= 60
What is the percent of change from 78 to 100 decreased
Answer:
28.20512821 %
Step-by-step explanation:
22/78 = 28.25%
Answer:
28.20512821 %
Step-by-step explanation:
22/78 = 28.25%
You deposit $30,000 into a savings account with an interest rate of 2.5% compounding quarterly for 10 years.
Part A- how much interest do you earn in 10 years?
Part B- how much money will be your account at the end of 10 years.
Answer:
30,000 divided by 1.23/100 then multiply 30,000 by 0.0123 the answer is 369, hope this helps
Step-by-step explanation:
What is an equation of the line that passes through the point (- 2, 7) and is perpendicular to the line x - 4y = 24 ? Pls help
Answer: y=4x-1
Step-by-step explanation: the line goes through (-2,7) and is perpendicular to the line x-4y =24
PLEASE HELP PLEASE ASAP!!!
Drag and drop the responses into the boxes to correctly complete the statements.
Answer:
verticles angles are different from each other so ans is a²×b² = c²
role 2 dice with number 1 through 6 and add them together this sum is recorded as the outcome of a single trial of a random experiment
I just need to fine the (the sum is divisible by 3)
please make it fast thank you
Answer:
porrrrnyyyyu???
Step-by-step explanation:
Solve for y. 4y+5/3=y-10/2
Answer:
20/9
Step-by-step explanation:
Answer:
[tex]y = - \frac{20}{9} [/tex]
Step-by-step explanation:
[tex]4y + \frac{5}{3} = y - \frac{10}{2} \\ 4y + \frac{5}{3} = y - 5 \\ 4y - y = - 5 - \frac{5}{3} \\ 3y = - \frac{20}{3} \times \frac{1}{3} [/tex]
[tex] y = - \frac{20}{9} [/tex]
2/3+1/12 what's the answer
Answer:
3/4 or 9/12 make the denominators the same then just add
Answer:
9/12 or simplified as 1/4
Step-by-step
2×4/3×4 + 1/12
= 8/12 + 1/12
= 9/12
= 1/4
A bridge is supported by triangular braces. If the sides of each brace have lengths 63 feet, 46 feet, and 40 feet, find the measure of the angle opposite the 46 foot side. Round to the nearest degree.
Given:
The sides of each brace have lengths 63 feet, 46 feet, and 40 feet.
To find:
The measure of the angle opposite the 46 foot side.
Solution:
According to the Law of Cosines:
[tex]\cos A=\dfrac{b^2+c^2-a^2}{2bc}[/tex]
We need to find the measure of the angle opposite the 46 foot side. So, [tex]a=46[/tex] and the other sides are [tex]b=63,c=40[/tex].
[tex]\cos A=\dfrac{(63)^2+(40)^2-(46)^2}{2(63)(40)}[/tex]
[tex]\cos A=\dfrac{3969 +1600-2116}{5040}[/tex]
[tex]\cos A=\dfrac{3453}{5040}[/tex]
[tex]\cos A=\dfrac{1151}{1680}[/tex]
Taking cos inverse on both sides, we get
[tex]A=\cos^{-1}\dfrac{1151}{1680}[/tex]
[tex]A=46.75503[/tex]
[tex]A\approx 47[/tex]
Therefore, the measure of the angle opposite the 46 foot side is 47 degrees.
Select the correct answer.
Which expression is equivalent to (in picture)
Please help with scale factor!!!!!!!! I will mark brainliest if right! Two rectangular prisms have a side scale factor of 1/4. If the smaller prism has a surface area of 45cm square, what is the surface area of the larger prism? Find the scale factor and area.
Answer:
1/16720 cm²Step-by-step explanation:
Area is the product of two dimensions.
If the scale factor is 1/4, the ratio of the areas will be:
(1/4)² = 1/16The smaller prism has a surface are of 45 cm².
The larger prism has a surface area:
45*16 = 720 cm²What is the value of s?
units
B.
8
15
D
Answer:
17
Step-by-step explanation:
In triangle ABD,
By pytagoras theorem,
s^2 = 8^2 + 15^2
= 64 + 225
s^2 = 289
s = 17 units
which weights more 2.48 or 2.5