Answer: 4 and a half
Step-by-step explanation:
Find the sum of the prime numbers less than 21
Answer:
1;3;5;7;11;13;17;19 add all the number
Answer:
Step-by-step explanation:
Prime numbers less than 21 are
2, 3,5,7,11,13,17,19
Sum= 79
To replace the trees destroyed by typhoon Yolanda, the forestry department of Tagaytay has developed a ten-year plan. During the first year they will plant 100 trees. Each succeeding year, they will plant 50 more trees than they planted the year before.
Answer:
a. 1,000 trees
b. 3,250 trees
Step-by-step explanation:
a. How many trees will they plant during the fifth year?
b. How many trees will they have planted by the end of the tenth year?
Using the sum of an arithmetic progression formula
Sn = n/2 {2a+(n-1)d}
Where,
Sn = Sum of an n terms
n = number of terms
a = first term
d = common difference
a.
n = 5
a = 100
d = 50
S5 = n/2 {2a+(n-1)d}
= 5/2 {2*100 + (5-1)50}
= 5/2 {200+(4)50}
= 5/2{200 + 200}
= 5/2(400)
= 2,000 / 2
= 1,000
S5 = 1,000 trees
b. Sn = n/2 {2a+(n-1)d}
n = 10
a = 100
d =50
S10 = 10/2{2*100 + (10-1)50}
= 5{200 + (9)50}
= 5{200 + 450}
= 5(650)
= 3,250
S10 = 3,250 trees
Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar. Aakash has a fever. His body temperature during the day was 99.2°F. By evening, his body temperature has increased by 3.4°F. His body temperature in the evening is °F.
Answer:
102.6°F.Step-by-step explanation:
Aakash body temperature during the day = 99.2°F.
If by evening his body temperature increases by 3.4°F, then his body temperature in the evening will be expresses as the sum of his temperature in the day and the increment.
Temperature in the evening = 99.2°F+3.4°F.
Temperature in the evening = 102.6°F.
Hence his body temperature in the evening is 102.6°F.
Answer:
102.6
I hope this helps
time to waste more points a yo help me
Answer:
1 mile every 6 minutes because 30 divided by 5 is 6 and 5 divided by 5 is 1
Step-by-step explanation:
I hoped this helped and if it did I would appreciate it if you marked me brainliest. Thank you and have a nice day!
please help me. i’ve been stuck on this test for 3 days and i need to get at least a 70% to pass
Answer:
D -5 less than or equal to y less than or equal to -1.
Step-by-step explanation:
the rang is the y-axis the equation has ys from -5 to -1 so -5to y to -1.
A local zoo has two large snakes. The anaconda is currently 5.23 meters long and grows 1.27 meters every month. The python is 4.76 meters long and grows 2.04 meters per month. How many months (m) does the zookeeper need to wait for the two snakes to be the same length?
Answer:
1 months
Step-by-step explanation:
Given
Anaconda
[tex]Length = 5.23m[/tex]
[tex]Growth = 1.27m[/tex] monthly
Python:
[tex]Length = 4.76m[/tex]
[tex]Growth = 2.04m[/tex] monthly
Required
Determine when their length will be equal
First, we need to write equations that determines the growth of each snake in m months.
For both snakes;
[tex]Expression = Length + Growth * m[/tex]
For the Anaconda, the expression is:
[tex]5.23 + 1.27 * m[/tex]
[tex]5.23 + 1.27 m[/tex] --- (1)
For the Python, the expression is
[tex]4.76 + 2.04 * m[/tex]
[tex]4.76 + 2.04m[/tex] ---- (2)
Both snakes will have equal length when both expressions (1 & 2) are equal
[tex]4.76 + 2.04m = 5.23 + 1.27 m[/tex]
Collect Like Terms
[tex]2.04m - 1.27 m= 5.23 - 4.76[/tex]
[tex]0.77 m= 0.47[/tex]
Solve for m
[tex]m = \frac{0.47}{0.77}[/tex]
[tex]m = 0.61[/tex]
[tex]m = 1[/tex] --- Approximated
Hence, the zookeeper will wait for 1 month
Write an equation of a line that safely lands the plane
PLEASE HELP!!!
LOTS OF POINTS
GIVE AN EXPLANATION FOR ME!!!!
?????Help please?????? I’ll cashapp u
Answer:
x int = (-2,0) (2,0)
y int = (0,12)
Step-by-step explanation:
my work is in the picture attached
anything in color is what I did in that certain step
Name a plane parallel to plane KLM.
Answer:
KNM
Step-by-step explanation:
Your business partner describes this as a high positive correlation. Is your partner correct? Why or why not? (2 points)
Answer:
if the points are in a straight line going upward then they are corect
but if the points are scattered they are wrong its hard to answer this question he graph to look at
what's the slope of (-2,-7),(4,-10)
Answer:
answer is -1/2 .i think it will be helpful for you
how many cups are in 3 liters 1 L = 4.2 cups
Answer:
12.6 cups
Step-by-step explanation:
each liter has 4.2 cups so if you just multiply it by 3 you will get 12.6. cups.
Can somebody help plz
Find the slope and the y-intercept of the graph of y=6x-5.
Answer:
The slope is 6 and the y intercept is -5
Step-by-step explanation:
y=6x-5
The equation is in slope intercept form
y = mx+b where m is the slope and b is the y intercept
The slope is 6 and the y intercept is -5
Answer:
[tex]slope=6\\\\y-intercept=-5[/tex]
Step-by-step explanation:
The given equation is written in slope-intercept form:
[tex]y=mx+b[/tex]
where:
m is the slope (the change in the y values over the change in the x values)b is the y-intercept (where the x value is 0 and the line crosses over the y-axis)x and y are corresponding coordinate points that lie on the line (x,y)Find the values:
[tex]y=(slope)x+(y-intercept)\\\\y=6x-5[/tex]
6 is in the slope place, so the slope is 6.
5 is in the y-intercept place. Note how this number has a negative sign when the original equation says "+b". This means that the y-intercept is -5.
:Done
what is the answer for 9867x5388 i need help
Answer:
9867x5388=53163396
Step-by-step explanation:
Answer:
53163396 is the answer
if an area of a rectangle is expressed as 3x^4-2x^2-10x-20, and the width of the same rectangle can be expressed as x-2, what is the length of this rectangle?
Answer:
Length=3x^3+6x^2+10x+10
Step-by-step explanation:
given that the area A of a rectangle is A=L*W, we can find length L=A/W
the sum of three times a number x and nine"
Answer:
3x+9
Step-by-step explanation:
you are multiplying 3 and x because it says "three times a number x" which means 3x and you are adding it to 9 which is 3x+9.
PLEASE!! For 22 points!!
Write the equation of the line that passes through the points (-4,-4) and (6,3).
Put your answer in fully reduced point-slope form, unless it is a vertical or horizontal
line.
Answer:
y = 3/5x + 3/5.
Step-by-step explanation:
the /'s are division symbols. 3 3
y = _ + _
5 5
Marcus and Jeremy both evaluated the expression −5^2 + 3. Marcus said the answer was −22. Jeremy said the answer was 28. Who is correct? Explain the error in the other student's work.
Answer:
Jeremy is correct
Step-by-step explanation:
Marcus and Jeremy both evaluated the expression −5^2 + 3. Marcus said the answer was −22. Jeremy said the answer was 28. Who is correct? Explain the error in the other student's work.
Marcus is wrong
This is because, Marcus calculated:
-5^2 + 3
= -25 + 3
= -22
This is wrong because it did not follow the rules which states that:
- × - = +
Jeremy calculation is shown below:
-5^2 + 3
-5 × -5 + 3
= 25 + 3
= 28
Jeremy is correct
SOMEONE PLS HELP!!!
Write a function g whose graph represents a reflection in the y-axis of the graph of f(x)=−3+|x−11|.
Transformations are used to change the position of a function from one point to another. When f(x) is reflected over the y-axis, the new function g is [tex]g(x) = x + 8[/tex]
Given that:
[tex]f(x) = -3+|x - 11|[/tex]
To reflect across the y-axis, we use the following transformation rule:
[tex](x,y) \to (-x,y)[/tex]
So, the new function is:
[tex]g(x) = f(-x)[/tex]
If [tex]f(x) = -3+|x - 11|[/tex], then:
[tex]f(-x) = -3+|-x - 11|[/tex]
Factor out -1
[tex]f(-x) = -3+|-1(x + 11)|[/tex]
Remove absolute sign
[tex]f(-x) = -3+1 \times (x + 11)[/tex]
[tex]f(-x) = -3+x + 11[/tex]
Collect like terms
[tex]f(-x) = x + 11-3[/tex]
[tex]f(-x) = x + 8[/tex]
Hence, the new function is:
[tex]g(x) = x + 8[/tex]
Read more about transformations at:
https://brainly.com/question/12865301
WILL GIVE 100 POINTS
Isosceles trapezoids ABCD and WXYZ are similar to each other. Label the trapezoids with the given side measures AB=6, WX=12, and, ZW=9
Use similar figures and the given side lengths to complete the following prompts. Enter numerical answers only. If necessary, enter decimal numbers rounded to the nearest tenth of a number. Do not enter your answer as a fraction number.
1. DA=
2.CB=
3.XY
4.If YZ=8 then CD=
5. if the perimeter of the trapezoid ABCD =
6. the perimeter of trapezoid WXYZ =
Answer: Hello this is my first time answering!
DA= 4.5
CB=4.5
XY=9
If YZ=8 then CD=4
Perimeter of trapezoid ABCD=19
Perimeter of trapezoid WXYZ=38
Step-by-step explanation:
I am almost positive the scale is 0.5/1 this means that for DA it would be 4.5. Of course, if DA was 4.5 then so would CB. Everything is half of the second trapezoid.
Thanks!
Answer:
1. 4.5
2. 4.5
3. 9
4. 4
5. 19
6. 38
Step-by-step explanation:
Hope this helps!???
Will give brainliest if correct
A student has grades 84, 91, 78, and 74. He will have one more test. If they are all weighted equally, what must he earn in order to average at least an 83 for the course, so he can earn a B?
Enter his minimum test grade. ___
Answer:
88
Step-by-step explanation:
which equation represents the vertical line passing through (7,-3)
A. x=-3
B. y=-3
C. x=7
D. y=7
Answer:
B- y=-3
Step-by-step explanation:
6th grade
Suppose out of 69 restaurant customers last week, two-thirds of the customers returned this week. How many customers returned this week?
Answer:
46
Step-by-step explanation:
69/3 = 23 (1/3 of the customers)
23×2 = 46 (2/3 of the customers)
Somebody help with bothhh
In 2014, the enrollment at Luling High School was 625 students. In 2015, the enrollment grew to 650. By what percentage did the enrollment at Luling High School increase from 2014 to 2015?
Answer:
[tex]\%Increase = 4\%[/tex]
Step-by-step explanation:
Given
[tex]Initial\ Population = 625[/tex]
[tex]Final\ Population = 650[/tex]
Required
Determine the percentage population increase
This is calculated using the following formula:
[tex]\%Increase = \frac{Final - Initial}{Initial} * 100\%[/tex]
[tex]\%Increase = \frac{650 - 625}{625} * 100\%[/tex]
[tex]\%Increase = \frac{25}{625} * 100\%[/tex]
[tex]\%Increase = \frac{25* 100\%}{625}[/tex]
[tex]\%Increase = \frac{2500\%}{625}[/tex]
[tex]\%Increase = 4\%[/tex]
Hence, there is a 4% increment from 2014 to 2015
find the difference of each number and 4. Complete the table to support your answers. The first example is provided. Number Subtraction Expression Addition Expression Answers 10 10 - 4 10 + (-4) 6 2 -4 -6 1
Answer:
A
Step-by-step explanation:
Just took the quiz
Can someone help me with this ASAP?
Answer:It's A I think if not try B
Step-by-step explanation:
Which graph represents a proportional relationship?
Answer:
honestly i don't think it's either of these
Step-by-step explanation:
a proportional relationship goes through the origin and neither of these do
Solve 1/2x−5=10−3/4x . Check your solution.
x= __
Answer:
12
Step-by-step explanation:
can you please answer my question too? it is due soon
Answer:
x = 12
Step-by-step explanation:
1/2x-5=10-3/4x
add 5 to both sides
1/2x=15-3/4x
add 3/4x to both sides
1/2x + 3/4x = 15
2/4x + 3/4x = 15
5/4x = 15
divide both sides by 5/4
x = 15 * 4/5
x = 60/5
x = 12