Answer:
42
Step-by-step explanation:
Test worth = 50
To obtain a grade percent = 84%
Score to obtain = x
Using the expression :
84% of test worth = x
84/100 * 50 = x
0.84 * 50 = x
42 = x
Score to obtain = 42
find the area of the shape
Answer:
787.5
Step-by-step explanation:
23×14=322
A=a+b /2h=15+34 /2·19=465.5
322+465.5=787.5
A circle has a radius of 8 cm, what is the diameter?
Answer: 16cm
Step-by-step explanation:
The radius is half of the diameter so you would have to double the radius.
Answer:
16cm
Step-by-step explanation:
The diameter of a circle is double the radius, so if a circle has a radius of 8cm, it has a diameter of 16cm because that's double 8cm.
Which situations can be represented by an exponential function?
Select each correct answer.
The value of a vehicle decreases by 11% each year.
In a structure made of bricks, each row has 10 more bricks than the previous row.
A dentist's office accepts 15 new patients each month.
Every year, the number of online video subscriptions increases by 3 times what is was the previous year.
Answer:
The answer is IC and D I just finished the text
Step-by-step explanation:
Alfie has £10 note He buys 3 pens costing 1.45 each and some pencils costing 90p He gets 2.05 change. How many pencils did he buy?
Answer:
4 pencils
Step-by-step explanation:
Note= pencils costing 0. 90p
Given data
Balance= £10
pen= 3*1.45= £4.35
pencils=0.90p
change= £2.05
2.05= 10-4.35-90p
solve for p
2.05= 5.65-90p
collect like terms
5.65-2.05= 0.90p
3.6=90p
divide both sides by 90
p=3.6/0.90
p=4
Solve using the Zero Product Property. What is one solution for x? (x – 5) (x + 1) =0
the guesses I was given are
1. 0
2. 5
3. 1
4. 6
In city W, the average cost for a gym membership is given by the equation y = 34.99x +49, where y is the total cost, in dollars, for x months of membership. What is the meaning of the y-value when x = 1? *
1,275÷588 rounded pls i need some help
what is 7 divided by 10 as a fraction
The fractional form is 7/10.
What is Fraction?The fractional bar is a horizontal bar that divides the numerator and denominator of every fraction into these two halves.
The number of parts into which the whole has been divided is shown by the denominator. It is positioned in the fraction's lower portion, below the fractional bar.How many sections of the fraction are displayed or chosen is shown in the numerator. It is positioned above the fractional bar in the upper portion of the fraction.Given:
We have to divide 7 by 10.
The common factor for 7 and 10
7 = 7 x 1
and, 10= 2 x 5 x 1
so, there is only one factor common is 1.
Thus, the fraction is 7/10.
Learn more about Equivalent Fraction here:
https://brainly.com/question/29766013
#SPJ2
There's an attachment. This is due in TWO minutes! I will award brainliest. Please answer soon!
Answer:
ultiply by 2 and then add 2
Step-by-step explanation:
....hi
Piece of Cake!
Solve this problem:
A cake has 79 slices.
Harry ate 47 slices; Jack ate 14 slices; Dave ate 10 &
Mary ate 8 slices.
What fraction of the cake is remaining?
Answer:
none/0
Step-by-step explanation:
they ate all the cake.
now harry is gonna get sick
Answer:
79/79 or 1
Step-by-step explanation:
47+14+10+8=79
If Harry, Jack, Dave, and Mary all ate 79 slices in total, then there would be no more cake left since there are only 79 slices. The fraction answer would be 79/79 or 1, because they 79/79 is equivalent to 1.
I WILL GIVE BRAINLIEST!!!! ANSWER QUICK!!!
Which of the following represents the general equation for the geometric sequence?
-1, -2, -4, …
a n = 2 n - 1
a n = -1 · 2 n - 1
a n = 1 · 2 n + 1
a n = 1 · 2 n - 1
Answer:
-1,-2,-4
an = a1 * r^(n - 1)
a1 = first term = -1
r = common ratio = 2
so the equation would be : an = -1 * 2^(n - 1)
Please be specific:(
How do you divide an equation like 3/4? And how do you convert a fraction into a decimal? 10 points and brainiest to whoever is more specific.
Step-by-step explanation:
You can perform a long divison.
4 / 3 \ 0.75
0
----
30
28
----
20
20
----
0
A grain trader buys the following amounts from three suppliers: 3,200 pounds, 7,200 pounds and 600 pounds. What is the total weight of this purchase
The total weight of the grain purchase is 5.5 tons when grain trader buys the following amounts from three suppliers: 3,200 pounds, 7,200 pounds and 600 pounds.
To find the total weight of the grain purchase in tons, we need to convert the weight from pounds to tons and then sum them up.
Given the weights from the three suppliers:
Supplier 1: 3,200 pounds
Supplier 2: 7,200 pounds
Supplier 3: 600 pounds
To convert pounds to tons, we divide the weight in pounds by the conversion factor of 2,000 (since there are 2,000 pounds in a ton).
Supplier 1's weight in tons: 3,200 pounds / 2,000 = 1.6 tons
Supplier 2's weight in tons: 7,200 pounds / 2,000 = 3.6 tons
Supplier 3's weight in tons: 600 pounds / 2,000 = 0.3 tons
Now, we can calculate the total weight by summing up the weights from each supplier:
Total weight in tons: 1.6 tons + 3.6 tons + 0.3 tons = 5.5 tons
Therefore, the total weight of the grain purchase is 5.5 tons.
To know more about total weight click here :
https://brainly.com/question/32839030
#SPJ2
Asphere has radius of 3 cm. What is the volume of the sphere?
Answer:
radius =3cm
volume of the sphere =4/3 πr^3
=4/3*22/7*3*3*3=88/7*3*3=88/7*9=792/7
=113.1cm^3
Heya, could someone help me figure this out? I'm kinda stuck on this question :p
Answer:
-0.5Step-by-step explanation:
to understand thisyou need to know about:algebraPEMDASgiven:v=u+atu=2a=-5t=½let's solve:substitute the given values : v=2+(-5)×½v=2+(-2.5)v=-0.5What is the constant in the expression 7x + 3
Answer:
3
Step-by-step explanation:
In expressions, there are 4 items to look at :
1. Terms
2. Coefficients
3. Like Terms
4. Constant Terms
Since 4. is the topic at hand, let's focus on that, constant terms are terms that cannot be changed value.
This would mean numbers without a variable, look at the expression below :
7x + 3
Since 3 doesn't have a variable, therefore 3 is a constant term.
A radio arm saw has a circular cutting blade with a diameter of 10 inches and it spins at 2000rpm if there are 12 cutting teeth per inch on the cutting blade how many teeth cross the cutting surface each second
Answer:
12565.11 teeth approximately cut cross the cutting surface per seconds.
Step-by-step explanation:
Since the diameter is 10inches, the circumference of the arm saw is 10π (circumference is πd where d is diameter).
The number of teeth on the cutting blade can be gotten by multiplying the diameter by 12 since we have 12 teeth per inch on the arm saw
Number of teeth on saw = 12 x 10π = 120π.
To get the number of teeth that cross the cutting surface in 2000rpm we multiple it by the total number of teeth in just one rpm.
So we have 2000 x 120π. But since we are asked to find it in revolution per seconds then 2000r/m = 2000r/60s ≈ 33.33
Therefore, we have
33.33 x 120π ≈ 12565.11 teeth
Determine two pairs of polar coordinates for the point (5, -5) with 0° ≤ θ < 360°
Answer:
Step-by-step explanation:
x=5
y=-5
Hence it lies in 4th quadrant.
x=r cos θ
5=r cos θ ...(1)
y=r sin θ
-5 =r sin θ ... (2)
square and add
(5)²+(-5)²=r²(sin ²θ +cos ²θ )
r²=25+25=50
r=±5√2
dividing
tan θ=-5/5=-1=-tan 45°=tan (180-45),tan(360-45)
θ=135°,315°
so polar coordinates are (5√2,315°) and (-5√2,135°)
Write 36 as a product of its prime factors.
Answer:
2 × 2 × 3 × 3 × 3
Solve for c 4(3+c)+c=c+4
Answer:
c= -2
Step-by-step explanation:
factor completely 2x^3-18x
Answer:
2x(x+3)(x-3)
Step-by-step explanation:
someone plz help me plz
Answer:
38.5
Step-by-step explanation:
First do 77/2 then you get 38.5, if anything is wrong please tell me!!
A car dealership pays $8,550 for a car. They markup the price by 20.4% to get the retail price. What is the retail price of the car at this dealership?
Answer:
$10294.20
Step-by-step explanation:
8550 increase 20.4% =
8550 × (1 + 20.4%) = 8550 × (1 + 0.204) = 10294.2
A mountain climber climbed down a cliff 10 metres at a time. He did this 5 times in one
day. What was the overall change in his elevation?
-50m
150m
-150m
50m
Answer:
-50 m
Step-by-step explanation:
its negative elevation because he is going down
I NEED HELP
Use the compound interest formula A=P(1+rn)nt.
If $10,000 is invested at 2 percent semi-annually for 5 years, what is the amount at the end of the term?
$11,052
$11,051
$11,049
$11,046
Answer:
A
Step-by-step explanation:
Answer:
D: 11,046
Step-by-step explanation: i took the quiz
Simplify each expression by combining like terms
-3x + 12x =
Answer:
9x
Step-by-step explanation:
hshdhdhdxhhxhxhxhxhxhxhxhhxhxhxhhx
Answer:
9x or 15x
Step-by-step explanation:
-3x + 12x = 9x
-3 + 12 = 9,
or if you just straight out add
-3x + 12x = 15x
what is 1.0×10 to the power of 14 in scientific notation
Answer: 100,000,000,000,000
Step-by-step explanation:
1.0 x 10^14
since the exponent is positive that means we move the decimal to the right 14 times and you should get 100000000000000.0
2 1/6 x 4 1/2 Solve the problem AND explain your steps
Question 6(Multiple Choice Worth 4 points)
(05.07 MC)
The number of wins for a high school football team is measured for the season. When the team plays at home, it is generally believed that they will win. Comparing the location of the game and the number of wins, a correlation coefficient of 0.891 is calculated. What would this imply about the football team winning at home?
The scatter plot would closely resemble a straight line with a positive slope. The data has a strong, positive correlation, but causation cannot be determined.
The scatter plot would closely resemble a straight line with a positive slope. The data has a strong, positive correlation, and a causal relationship exists between the team playing at home and winning.
The scatter plot would not be represented by a line of best fit with a positive slope. There is a weak correlation between the football team playing at home and winning.
There is no causation and almost no correlation between the football team playing at home and winning.
Answer:
The scatter plot would closely resemble a straight line with a positive slope, but causation cannot be determined.
Step-by-step explanation:
Recall that causation and correlation are 2 different things. Say Taller people usually had a name that started with the letter “A” It's a correlation, but a name does not determine the height, so it's not causation. (I took the test and got it right too.)
The data has a strong, negative correlation, and a causal relationship exists between the team playing at home and winning would be imply about the football team winning at home.
What is a correlation coefficient?It is an index that measures correlation between two variables, assuming values between -1 and 1.
If it is positive, the relation is positive, that is, they are direct proportional. If it is negative, they are inverse proportional.
If the absolute value of the correlation coefficient is greater than 0.6, the relationship is strong.
It also is the slope of the line of best fit.
The number of wins for a high school football team is measured for the season. When the team plays at home, it is generally believed that they will win.
Comparing the location of the game and the number of wins, a correlation coefficient of 0.891 is calculated.
The scatter plot would closely resemble a straight line with a negative slope. The data has a strong, negative correlation, and a causal relationship exists between the team playing at home and winning.
Learn more about straight line here:
https://brainly.com/question/21872285
#SPJ4
Solve the equations:
5(x+2)-6(2-x)=x+10(x+1)
NEED HELP NOW!!! WILL MARK BRAINLEST!!!
Answer:
The equation is a contradiction: it has no solutions
Step-by-step explanation:
5(+2)−6(2−)=+10(+1)
5(x+2)−6(2−x)=x+10(x+1)5(x+2)-6(2-x)=x+10(x+1)5(x+2)−6(2−x)=x+10(x+1)
Solve
Distribute
5(+2)−6(2−)=+10(+1)
5+10−6(2−)=+10(+1)
Rearrange terms
Distribute
Subtract the numbers
Combine like terms
Distribute
Combine like terms
Add
2 to both sides of the equation
Simplify
Subtract 11 from both sides of the equation
Simplify
Result
0=12
Answer:
x = -11 (sorry if this is wrong)
Step-by-step explanation:
5(x+2)-6(2-x)=10(x+1)
5x +10 -12x + 6x = 10x + 10
-1x + 10 = 10x + 10
-10x -10x
-11x + 10 = 10
-10 -10
-11x = 0
---- ----
-11 -11
x = -11