Sum the first 1000 natural numbers:
[tex]\displaystyle 1 + 2 + 3 + \cdots + 100 = \sum_{i=1}^{1000} i = \frac{1000 \cdot 1001}2 = 500,500[/tex]
Since 1000/5 = 200, there are 200 multiples of 5 in the range 1-1000. Sum them up:
[tex]\displaystyle 5 + 10 + 15 + \cdots + 1000 = 5 (1 + 2 + 3 + \cdots + 200) = 5\sum_{i=1}^{200}i = 5\cdot\frac{200\cdot201}2 = 100,500[/tex]
Then the sum we want is
[tex]\displaystyle 1 + 2 + 3 + 4 + 6 + 7 + 8 + 9 + 11 + \cdots + 999 = 500,500-100,500 = \boxed{400,000}[/tex]
Amata mixes 2 parts black paint with 3 parts white paint to make 90 mL of gray paint. How much white paint does Amata use to make the gray paint?
A 18 mL
B 30 mL
C 45 mL
D 54 mL
José chose A as the correct answer. How might he have gotten that answer?
Answer:
is 18 because 6x3 is 18 ok
What is the difference of 176-.98
Answer:
78
Step-by-step explanation:
→[tex]176-98=78[/tex]
[tex]—» 176 - 98 [/tex]
[tex]—» \: 78[/tex]
The temperature at the bottom of a mountain was 8°C and the temperature at the top was 26°C .Find the difference between the temperatures and find the mean of the two temperatures
Answer:
Difference: 18° C
Mean: 17° C
Step-by-step explanation:
Difference means to subtract.
26 - 8 = 18° C
Mean is the average of the two temperatures. To find average, add the two temperatures together, then divide the answer by two since there are two numbers being added.
26 + 8 = 34
34 ÷ 2 = 17° C
Use the distributive property to expand (3x + 4)(x + 1). Then select the simplified
expression.
a) 3x^2 + 7x - 4
b) 3x^2 - 7x + 4
c) 3x^2 + 7x + 4
d) 3x^2 - 7x - 4
im confused can some one answer this
Answer:
24 girls
Step-by-step explanation:
I answered your question, could you maybe answer mine?
https://brainly.com/question/26466957
True or False? A direction angle will always be a value between -90° and 90°.
Answer:
False
Step-by-step explanation:
The short reason the statement is false is, "it depends on what you mean by direction angle".
The long reason the statement is false is that "direction angle" sometimes refers to a navigation direction that is specified in terms of compass directions. For example, you might have N20°E, or S80°E. The angle measure in such directions is 0 to 90°. It does not take on a negative value when the direction is expressed in the standard form, an angle east or west from north or south.
An arbitrary vector is an expression that has a magnitude and direction. Such a quantity can have either or both values be positive or negative and of any magnitude. There is no reason for direction to be restricted to values in the range ±90°.
Is 9 a solution to the equation: 3x – 5 = 4 + 2x?
Answer:
Yes, 9 will be the answer...
Step-by-step explanation:
3x-5 =4+2x
3x-2x = 4+5 (By transposing method)
x =9
Hope this is correct
Answer:
yeah it is ,
putting the value of x as 9
=> 3x – 5 = 4 + 2x
=> 3×9-5=4+2×9
=> 27-5 = 4+18
=> 22 = 22
✌️
How do you determine what side of a graph should be x and what side is y when graphing a scatterplot in linear regression?? For instance, in the problem below:
(screen shot attached)
Answer:
y will be the dependent variable, and x will be the independent variable.
So y is affected by x.
Regarding the problem you attached, consider if IQ affects job performance, or if job performance affects IQ.
I would say that IQ may affect job performance (as job performance does not affect IQ), so in this case x will be IQ and y will be job performance.
When data is presented in tables, it is usual for the x values to be on the left and the y values to be on the right (though, not in every case, of course!).
Find the missing angle for the irregular polygon. show your work.
Answer:
Sum of the interior angles=900º
x=80º
∠A=110º
∠C=130º
∠E=125º
Step-by-step explanation:
The shape is a heptagon. Meaning, the sum of the interior angles is 180º(n-2) where n is the number of sides. So, 180º(7-2)=180º(5)=900º.
So, we can add up all the angles.
x+30º+140º+x+50º+115º+x+45º+140º+140º=900º
3x+660º=900º
3x=240º
x=80º
Then, we can substitute for ∠A, ∠C, and ∠E
∠A=80+30=110º
∠C=80+50=130º
∠E=80+45=125º
Caculate the density of an object that has a mass of 10 grams
and a volume of 20 cubic centimeters
answer
density= mass/ volume
[tex]d =10 g\20cm ^{2} = 0.5 g \cm^{2} [/tex]
15x63+43-536+74-635+563
Answer: 545
Step-by-step explanation:
Answer:
454
Step-by-step explanation:
Hope This Helps
Have A Great Day
Are 20, 25, 12, 15 in porportion
Answer:
Yes, 20:25 and 12:15 are in proportion.
Step-by-step explanation:
Since 20:25 can also be written as 4:5 (Multiples of 5).
And 12:15 can also be written as 4:5 (Multiples of 3).
A rectangle is 2 meters wide and 6 times as long as it is wide. Find the area and perimeter
PERIMETER
Answer:
Answer is 28 m
Step-by-step explanation:
Breadth= 2m
Length= 2X6m
= 12m
Perimeter of a rectangle = 2X (Length+ Breadth)
= 2X (2+12)
= 2X14
= 28m
AREA
Answer:
Answer is 24 m
Explanation:
Length= 12
Breadth= 2
Area of a rectangle= Length X Breadth
= 12X2
= 24 sq. m
Hope it helps ;)
Please mark as brainliest!
Can someone help me with this question?
Send help...I know what to do but like...
Answer:
a=-4,000m+39,000
Step-by-step explanation:
substitute the 4 in for m to do -4000 x 4 = -16000
-16000+39000 = 23000
What the answer to find the area of the parallelogram
Compute the following.
f(40) − f(0)/40 − 0
Answer:
the slope of the tangent line at (40, f(40))the slope of the tangent line at (15, f(15)) the slope of the tangent line at (10, f(10))the slope of the line segment from (10, f(10)) to (40, f(40))
What percentage of all students prefer hot dogs?
Which expression is equivalent to
Answer: [tex]\frac{1}{\sqrt[3]{x^{5} } }[/tex] is true.
Solve for b.
b+(−1.9)=−3.7
Enter your answer in the box
Answer:
b = -1.8Step-by-step Solution:
Subtract or add to obtain your answer.
b + (−1.9) = −3.7=> b - 1.9 = -3.7=> b = -3.7 + 1.9=> b = -1.8Hence, the value of b is -1.8
Let's find
[tex]\\ \tt\hookrightarrow b+(-1.9)=-3.7[/tex]
[tex]\\ \tt\hookrightarrow b-1.9=-3.7[/tex]
Isolate b[tex]\\ \tt\hookrightarrow b=-3.7+1.9[/tex]
[tex]\\ \tt\hookrightarrow b=-1.6[/tex]
CHALLENGE PROBLEM Danny's Department Store advertises savings of
45% to 51% off women's fall collections. Items with original prices of
$44.00 to $152.00 are now $14.95 to $76.00. Use the percent paid to
determine whether this advertisement is correct.
Discount are used to reduce the costs of items
The percent paid to determine the advertisement is incorrect
How to determine the correct percentageThe initial prices are given as: $44.00 to $152.00
And the discount is: 45% to 51%
At a discount of 45%, the price of the items would be:
[tex]Price = \$44.00 * (1 - 45\%)[/tex]
[tex]Price = \$24.2[/tex]
[tex]Price_2 = \$152.00 * (1 - 45\%)[/tex]
[tex]Price_2 = \$83.6[/tex]
At a discount of 51%, the price of the items would be:
[tex]Price = \$44.00 * (1 - 51\%)[/tex]
[tex]Price = \$21.56[/tex]
[tex]Price_2 = \$152.00 * (1 - 51\%)[/tex]
[tex]Price_2 = \$74.48[/tex]
The calculates prices show that the percent paid to determine the advertisement is incorrect
Read more about discounts at:
https://brainly.com/question/23103804
Question 4 of 10
For the x-values 1, 2, 3, and so on, the y-values of a function form an
arithmetic sequence that decreases in value. What type of function is it?
O
A. Exponential growth
O B. Decreasing linear
O c. Exponential decay
C.
O D. Increasing linear
Answer:
B. Decreasing linearStep-by-step explanation:
Arithmetic sequence has a linear behavior since its common difference is the slope of the line.
If y-values decrease as x-values increase then this is a decreasing function.
Correct choice is B
Answer:
Decreasing linear
Step-by-step explanation:
As x values like 1,2,3.. are decreasing with respect to y hence it's decreasing function
Also
Arithmetic progression is linear hence it's decreasing linear
A circle is an assortment of focuses which are all on the periphery of the circle. Assuming that you use polynomial math and (x-h)^2 + (y-k)^2 = r^2 and the data contained in the directions (x,y) of every city, you can track down h, k and r. Then, at that point, r is the (equivalent) distance between every city and the focal point of the circle, where the new pinnacle will be assembled.
How would you make this construction to ensure that the location of the cities lie exactly on the circle?
Answer:
I don't understand the question
Answer: This is really hard I don't know
Step-by-step explanation:
A salesperson sells $2900 in merchandise and earns a commission of $522. Find the commission rate. Write your answer as a percentage.
Answer:
18%
Step-by-step explanation:
Divide the commission by the amount sold for that commission:
522 / 2900 =0.18
Convert to percentage:
0.18*100=18
thanks for the help!
Hope you could understand.
If you have any query, feel free to ask.
I will give points for geometry question
Answer:
9m, 12m, 15m
Step-by-step explanation:
There are 23 pastries. They need to be shared equally between 7 people. How many pastries does each person get? Write your answer as a mixed number.
Remember, your remainder becomes the fraction.
Answer:
3 [tex]\frac{2}{7}[/tex] pastries
Step-by-step explanation:
Amount to be shared / number of people sharing
23 / 7
To simplify easily in our heads, we can take 23 and subtract 7. That then becomes a 1. Subtract 7 again, it becomes a 2. We can do this until we have taken all of the wholes (equivalent to 1) out of 23/7. The math for this is shown below.
[tex]\frac{23}{7} =\frac{7 +7 +7+2}{7} =3\frac{2}{7}[/tex]
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly.
- Heather
What is 23/100 + 7/10
Answer:
93/100
Step-by-step explanation:
23/100 + 7/10
=> 23/100 + 70/100
=> 93/100
Answer and Step-by-step explanation:
First, before you add and solve, you need to make both denominators the same. So, multiply the numerator and denominator of 7/10 by 10 to get: 70/100. Now you should have:
23 + 70
100 100
Simply add the numerators to get 93/100. This cannot be simplified any further, so the final answer is:
93
100
I hope this helps.
(05.01) Which statement best describes the area of the triangle shown below?
Answer:
A
Step-by-step explanation:
Area of a triangle:
[tex]A=\frac{b*h}{2}[/tex]
In our case:
b=4
h=2
Plug in what we know:
[tex]A=\frac{(4)(2)}{2} \\A=4units[/tex]
Find the matching solution:
A.) it is 1/2 the area of a rectangle of length 4 units and width 2 units
X B.) it is twice the area of a rectangle of length 4 units and width two units
X C.) it is 1/2 the area of a square of side length 4 units
X D.) it is twice the area of a square of side length 4 units
BamBam's father gives him a weekly allowance of $2500. If he spends 380 per day, how much money will he be left after 16 days?
