Answer:
1920
Step-by-step explanation:
Nina can type 128 words is 4 minutes. At this rate, how many words can Nina type in an hour?
60 divided by 4 is 15
15x128= 1920
Please help I never learned this
Answer:
7
Step-by-step explanation:
7x7x7
Find the slope of the line that contains (-2,-2) and (-10,-9).
A. M=8/7 B. M=11/12
C. M=12/11 D. M=7/8
Answer:
D
Step-by-step explanation:
slope of a line m= rise /run= (y1-y2)/ (x1-x2) = -2+9/-2+10 =7/8
Answer:7/8
Step-by-step explanation:
Describe and correct the error in finding the slope and the y-intercept of the graph of the equation.
Answer:
The error is the slope is -4 and the correct is, the slope is [tex]-\frac{1}{4}[/tex]
Step-by-step explanation:
You must put the equation in the form of y = m x + b, where
m is the slope b is the y-interceptLet us put the equation n the form above
∵ x = -4y
→ Switch the two sides
∴ -4y = x
→ Make the coefficient of y equal 1 by divide both sides by -4
∵ [tex]\frac{-4y}{-4}[/tex] = [tex]\frac{x}{-4}[/tex]
∴ y = [tex]\frac{x}{-4}[/tex]
→ Write [tex]\frac{x}{-4}[/tex] as [tex]-\frac{1}{4}[/tex] x
∴ y = [tex]-\frac{1}{4}[/tex] x
→ Compare it by the form above
∴ m = [tex]-\frac{1}{4}[/tex] and b = 0
∴ The slope of the is [tex]-\frac{1}{4}[/tex] , and the y-intercept is 0
∴ The error is the slope is -4 and the correct is the slope is [tex]-\frac{1}{4}[/tex]
please help I need to finish this In like 10 minutes
Answer:
C
Step-by-step explanation:
f = [tex]3^{x} + 10x\\[/tex]
g = 4x-2
f + g = [tex]3^{x} + 10x[/tex] + 4x-2
= C: [tex]3^{x} + 14x -2[/tex]
what is the slope of the line
Answer:
1/2
Step-by-step explanation:
Answer:
The slope of the line is -2 or m=-2
Step-by-step explanation:
pls solve this using substitution method 2f - 3g=11 , 3f -5g =15
Answer:
f= 10, g=3
Step-by-step explanation:
Hope it helps!
There is a population of 1,000 bacteria in a colony. If the number of bacteria doubles every 21 hours, what will the population be 63 hours from now?
Answer:
6,000
Step-by-step explanation:
1,000*2=2,000
63/21=3
2,000*3=6,000
Answer:
3000
Step-by-step explanation:
21 hours x 3 = 63 hours
if the bacteria doubles every 21 hours, in 63 hours it would have doubled three times. 1,000 bacteria x 3 = 3,000 bacteria
Helen has five times more as money as Brian they're both have $42 together how much do they have
Answer:
Helen has $35 and Brian has $7
Step-by-step explanation:
5b + b = 42
6b = 42
/6 /6
b = 7
7(5) + 7 = 42
35 + 7 = 42
42=42
Two lines, C and D, are represented by the following equations: Line C: y = x + 5 Line D: y = −2x − 1 Which of the following options shows the solution to the system of equations and explains why? (4 points) a (−2, 3), because the point does not lie on any axis b (−2, 3), because both lines pass through this point c (−2, 3), because one of the lines passes through this point d (−2, 3), because the point lies between the two axes
Answer:
The correct answer is B
Step-by-step explanation:
I know this is the answer because I took the test and got it right.
ASAP!!
what is the polar form of -2sqrt3 -6i?
Answer:
D on edge
Step-by-step explanation:
2020
Answer:
D
Step-by-step explanation:
Ed2021
NEED HELP ASAP, WILL GIVE BRAINLIEST
Does the sequence 8, 6, 4, 2, ... converge or diverge ?
The sequence 8, 6, 4, 2, ... diverges. It is a divergent sequence.
What is meant by divergent sequence ?Divergent sequence is defined as the sequence whose limit does not exists or is infinite.
Here,
The sequence given is,
8, 6, 4, 2,..
The common difference of the sequence, d = 6 - 8 = -2
nth term of the sequence, aₙ = a + (n - 1)d
aₙ = 8 + (n - 1) x -2
aₙ = 8 + 2n - 2
aₙ = 2n + 6
Taking the limit of the sequence,
L = [tex]\lim_{n \to \infty} a_n[/tex]
L = [tex]\lim_{n \to \infty} (2n + 6)[/tex]
We get the limit of the sequence as infinite. So, the sequence is a divergent sequence.
Hence,
The sequence 8, 6, 4, 2, ... diverges.
To learn more about divergent sequence, click:
https://brainly.com/question/30889536
#SPJ3
Out of the 21 students in Terry's class, 15 prefer spaghetti over meatloaf. There are 420 students in Terry's middle school. Based on these survey results, how many students at Terry's school could be expected to prefer spaghetti over meatloaf?
Answer:
300 can be expected to prefer spaghetti over meatloaf.
Answer:
Step-by-step explanation:
15:21 = x:420 (students that want da spaghetti:overall students)
cross multiply
15 x
21 420
6300=21x
divide by 21 on both sides
300=x
300 students out of the 420 prefer da spaghetti
The value of x is???
Answer: the vaule is 4
Step-by-step explanation:
becusee its the same as the one across
Answer:
4
Step-by-step explanation:
1 x 4 / 1 = 4
3X+28+8=68
what does x equal
if right brainlist!!
also 15 points
Answer:
3x+28+8=68
3x+36=68
-36 -36
______________
3x=32
_______(divide by 3)
3
x=32/3 or 10.6666666667
Answer:
x = 32/3
Step-by-step explanation:
Store A is selling clothes for 20% off. Store B advertises low prices without needing to give sales. A coat you want is sold at both places.
Store A's normal price is $59.99 plus 20% off. Store B's price is $49.99. Which store sells the coat the cheapest and by how much?
A.
Store B by $2.
B.
Store A by $2
C.
Store B by $4
D.
Store A by $4
Answer: I think the answer is b
Step-by-step explanation:
20% off means that there is 80% on which means you pay that 80% so you move the decimal point two spots
80.0% to .80 and multiply store a’s price of 59.99 to get 47.992 round the two in the decimal down making the total price for store a 47.99 and total price for store b 49.99 so store a is the better price by two dollars
Which of the following describes the transformation from AABC" -->
AA"B"C"?
A) reflection over X-axis, then translation (0,2)
B) 90 counterclockwise rotation, then reflection over y-axis
C) reflection over y-axis, then rotation 180
D) 90 counterclockwise rotation, then reflection over x-axis
D. 90 counterclockwise rotation, then reflection over x-axis
(-x²+9) + (-3x²-11x+4)
Answer:
=-4x^2-11x+13
Step-by-step explanation:
At the beginning of Grade 6, the ratio of advanced math students to the number of regular math students was 3: 8. After taking placement tests, students we removed around changing the ratio of advanced students to the number of regular students to 4: 7. How many students started in regular math and advanced math if there were 92 students in advanced math after the placement test?
Answer:
69 students were advanced and 184 were regular
Step-by-step explanation:
begining
advance 3: regular 8
after exam
advance 4 (92students) : regular 7 (92/4=23; 23*7=161 students)
So total students we have 161+92=253,
remember we have advance 3: regular 8 so
253/(3+8)=253/11=23
23*3=69, 23*8=184
I need help please ASAP!!!!!!
Answer: y = 2x + 14 x is the number of weeks. 14 (b) was his original performance in miles jogged per week. y is the expected performance.
Sketch attached.
Step-by-step explanation: Given John's current performance, it is likely that he was able to jog some number of miles per week, the "b" in slope-intercept form. To calculate:
30 = 2(8) + b
30 = 16 + b
30 - 16 = b
14 = b
Substitute into the slope intercept equation:
y = 2x + b
A. Y=x^2+3 B. Y=2/3x+6 C. Y=|x|+4 D .Y=2x-5 1. Identify the linear equations from the list. 2. State the constant rate of change for each linear equation. 3. Briefly describe the relationship between constant rate of change and linear equations.
Answer:
Step-by-step explanation:
1. An equation is said to be linear if the variables have power not greater than 1.
Thus, the linear equations from the list are:
B. Y = [tex]\frac{2}{3}[/tex]x + 6
C. Y = |x| + 4
D .Y = 2x - 5
2. Comparing the equations with y = mx ± c, the constant rate of change for each linear equation are:
B. [tex]\frac{2}{3}[/tex]
C. 1
D. 2
3. The constant rate of change is the gradient (slope) of a linear equation. It describes the steepness of a line from the plot of points obtained from the linear equation.
How do you know when an expression is completely simplified?
Answer:
You keep divinding it by 2 until you can no longer divide
maria rode her bike for three-fifths of a miles did she ride altogether
A.1/5 B.3/10 C.7/5 D.4/5
Complete Question:
Maria rode her bike for three-fifths of a mile on Monday and one-fifth of a mile on Tuesday. How many miles did she ride altogether?
Group of answer choices.
A. 1/5
B. 3/10
C. 7/5
D. 4/5
Answer:
D. 4/5
Step-by-step explanation:
Given the following data;
Distance covered on Monday, D1 = 3/5 miles
Distance covered on Tuesday, D2 = 1/5 miles
Total distance covered, Td = D1 + D2
Substituting into the equation, we have;
[tex] Td = \frac {3}{5} + \frac {1}{5}[/tex]
Lowest common denominator (LCD) = 5
[tex] Td = \frac {3 + 1}{5} [/tex]
Td = 4/5 miles.
Therefore, Maria rode 4/5 miles altogether.
Please help ASAP!
An ice cream factory makes 280 quarts of ice cream in 2 hours. How many quarts could be made in 36 hours? What was the rate per day?
Answer: 10,080
Step-by-step explanation:
280 x 36 = 10,080
If I got this wrong sorry, but the best way to find it is by dividing the number and hours Ik it doesn't make sense, I'm bad at explaining.
Answer:In 48 hours, 1,344 quarts of ice cream can be made.
The rate per day is 672 quarts of ice cream.
Step-by-step explanation:
multiplying two complex numbers involves _____
Answer:
232
Step-by-step explanation:
232
find c when a=8 and b=10 in a right triangle
Answer:
I googled it and found 12.81 (it seems right to me,but I'm not sure)
21 less than three fifths of a number
Answer:
3/5x - 21
Step-by-step explanation:
3/5x represents the three fifths of a number, and - 21 represents 21 less :)
A book advertised as 20% off. If it cost 70$ how much was it originally
Answer:
The answer is $84
Step-by-step explanation:
hope this helps
$70×0.2=14
$70+$14=$84
Answer:
Step-by-step explanation:
$87.50 would be your answer
since you're trying to find the book cost originally you would subtract the total minus the discount to get .8
then you would divide 70/.8 to get your answer of 87.50
The popcorn in a vending machine costs $0.75 per bag. Which function rule describes the situation?
Answer:
f(b)=75%b
hope it helped :)
whats the slope of (8,18) and (16,24)
Answer:
6/8
Step-by-step explanation:
I answered this math question on edge and 100%.
A sandwich costs $4.25 and a fruit drink costs $1.85. How much does a sandwich and fruit drink cost in total?
Answer:
$6.10 if u add em up u get same answer
Answer:
$6.10 it is that, six point 10, I need twenty characters so there's that
