Answer:
2,000
Step-by-step explanation:
Look at the hundreds place. It has a 5 in its place. The rule for rounding is that if the number directly to the right of the place you are rounding is 4 or below, you round down. If it's 5 or above, you round up. It has a 5 in its place, so we round up. The 5 becomes a 0, and the 1 in the thousands place becomes a 2. All other places are 0 because the rounding up affects all other places.I hope this helps!
Help me please I will give you brainliest btw I need this asap
equation álgebra
3x^2 = 12
a. +3
b. +2
C. +3.5
d. +1.5
Answer:
x=-2,2
Step-by-step explanation:
Since this is a quadratic equation, -2 or 2 could be the possible answer
Steps
$3x^2=12$
$\mathrm{Divide\:both\:sides\:by\:}3$
$\frac{3x^2}{3}=\frac{12}{3}$
$\mathrm{Simplify}$
$x^2=4$
$\mathrm{For\:}x^2=f\left(a\right)\mathrm{\:the\:solutions\:are\:}x=\sqrt{f\left(a\right)},\:\:-\sqrt{f\left(a\right)}$
$x=\sqrt{4},\:x=-\sqrt{4}$
Show Steps
$\sqrt{4}=2$
Show Steps
$-\sqrt{4}=-2$
$x=2,\:x=-2$
Which of the following expressions best describes what is modeled on the number line?
(-1)(-4)
4(-1)
1(-4)
4(1)
Answer:
4(-1)
Step-by-step explanation:
Answer:
4(-1)
Step-by-step explanation:
Which situation is an example of an observational study?
O A. Testing the effectiveness of a mouthwash by allowing one group
to use it and comparing the results with those of a group that
doesn't use it
O B. Dividing a class into thirds, giving each third a different amount of
time to read, and then testing comprehension
O C. Collecting the blood pressure readings of a group of elderly
individuals in a small town
O D. Having customers fill out a questionnaire about their favorite
brand of toothpaste
The situation that is an example of an observational study is " Having customers fill out a questionnaire about their favourite brand of toothpaste".
What is an observational study?When researchers monitor the effect of a risk factor, diagnostic test, therapy, or other intervention without attempting to influence who is or is not exposed to it in observational studies.
For example: Consider someone standing on a popular street in a New York neighbourhood asking passers-by how many dogs they have, then analyzing the data to see if more pet food businesses are needed in the area.
As we know that in an observational study, the sample whose test/survey is been taken is completely random.
Therefore, the situation that is an example of an observational study is " Having customers fill out a questionnaire about their favourite brand of toothpaste".
Learn more about Observational Study:
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Answer: C
Step-by-step explanation: Collecting the blood pressure readings of a group of elderlyindividuals in a small town
How many solutions are there to the equation below?
x² = 9
A. O
B. 4
C. 9
D. 1
E. 2
Answer: E. 2
Step-by-step explanation:
x²=9
x=±3 ⇔ since it is square (any value after square will always be positive), the value can be negative or positive.
There are 2 solutions: 3 and -3
Hope this helps!! :)
What number should be in the blank box?
Answer:
22
Step-by-step explanation:
Add every other number and it equals the next in line.
2 + 5 = 7
3 + 7 = 10
5 + 10 = 15
7 + 15 = 22
And as proof of concept:
10 + 22 = 32
Answer:
22! Mark the other answer brainleist!
Step-by-step explanation:
2+5 = 7
3+7 = 10
7 + 15 = ?
15 + ? = 32
? must be 22!
If h(x)=x^2-5x, g(x)=2x, f(x)=3x-2, what is h(f(g(x)))
Step-by-step explanation:
start from f(g(x))
f(g(x))= 3(g(x)) -2
f(g(x))= 6x -2
h(f(g(x)))=(f(g(x)))² -5(f(g(x)))
h(f(g(x)))=(6x-2)² -5(6x-2)
h(f(g(x)))=36x²-24x+4-(30x-10)
h(f(g(x)))=36x²-24x+4-30x+10
h(f(g(x)))=36x²-54x+14
a retailer sold a shirt for rupees 1000 and he made a profit of 25% find the purchased price of a shirt
Answer:
750 rupees is used to make shirt
250 rupees is profit
Step-by-step explanation:
If the retailer sold the shirt for 1000 rupees and got 25% profit then that means 1/4 is profit and 3/4 is how much the retailer spent to make the shirt.
So 1000 times 3/4 is 750 which is how much the shirt really cost and
1000 times 1/4 is 250 and that is the retailers profit.
i need to simplify this expression
1+4(2x-3)-x
Answer:quit
Step-by-step explanation:
BD is the bisector of LABC.
m_ABD = 2x + 7
m2 DBC = 3x – 17
Solve for x and find m2 ABD.
Answer:
x= 24, <ABD = 55°
Step-by-step explanation:
The way I go to x=24 is in the picture, but to find <ABD is a piece of cake, just take its value (2x+7) and replace the x with 24 and then you will get 55°
Glad to help :)
solve the equation 7+4y=39
Answer:
y = 8Step-by-step explanation:
[tex]7+4y=39\\\\\mathrm{Subtract\:}7\mathrm{\:from\:both\:sides}\\7+4y-7=39-7\\\\\mathrm{Simplify}\\4y=32\\\\\mathrm{Divide\:both\:sides\:by\:}4\\\frac{4y}{4}=\frac{32}{4}\\\\Simplify\\y =8[/tex]
Answer:
y = 8
Step-by-step explanation:
7 + 4y = 39
Rearrange:
4y + 7 = 39
Subtract 7 from both sides:
4y + 7 = 39
- 7 -7
4y = 32
Divide both sides by 4:
4/4 = y
32/4 = 8
y = 8
Which graphs have rotational symmetry? Check all of the boxes that apply.
On a coordinate plane, a cubic function has an x-intercept of (0, 0).
On a coordinate plane, an absolute value function opens down.
On a coordinate plane, an oval is in quadrant 1.
Answer:
The correct option are;
On a coordinate plane, a cubic function has an x-intercept of (0, 0)
On a coordinate plane, an oval is in quadrant 1
Step-by-step explanation:
Rotational symmetry of a shape is a shape that when it is rotated on its axis to a given angle less than one complete revolution, the shape looks exactly like the pre-image or original appearance of the shape
For a cubic function that has x-intercept = (0, 0) we have;
y = f(x) = a·x³ + b·x² + c·x
Has the shape f a fan blade and therefore, looks the sane when rotated when rotated through 180°
The shape of an oval looks the same when rotated through 180°
Answer:
This graph has rotational symmetry about the point
(0,0).
This graph has rotational symmetry about the point (2,4).
Step-by-step explanation:
second part on edge 2020 !
If f(x) = 2x+7 and g(x) = -3x+5, what is f(g(5)) ?
Answer:
-13
Step-by-step explanation:
As per the order of operations, you do the parentheses first. g(5) is inside the parentheses of f(g(5)).
g(5) = -3(5) +5 = -10
Then ...
f(g(5)) = f(-10) = 2(-10) +7
f(g(5)) = -13
Susan is buying supplies for a party. Spoons only come in bags of 2 and forks only come in bags of 16. What is the least number of spoons and the least number of forks she can buy so that she has the same number of each?
Answer:
She needs to get 8 bags of spoon and 1 bag of fork
Step-by-step explanation:
Here in this question, we want to know the least number of spoons and the least number of bags to be bought so that there are same number of each.
Basically, to calculate this, we need the lowest common multiple of 16 and 2. The lowest common multiple of both is 16 (2 is a factor of 16)
So the lowest number of each she can buy to have the same number of pieces is 16.
Kindly recall that spoons come in bags of 2. So to achieve the 16, she needs 8 bags.
Since fork comes in bag of 16, to achieve 16, she only need a single bag of fork.
-2y+9=3 uiiii iiiiiiiiiiiiiiiii
Answer:
y=3
Step-by-step explanation:
-2y+9=3
Step 1: Subtract 9 from both sides.
−2y+9−9=3−9
−2y=−6
Step 2: Divide both sides by -2.
−2y /−2 = −6 /−2
y=3
Answer:
y=3
Answer:
y=3
Step-by-step explanation:
Subtract 9 from both sides.
−2y=3−9
Simplify 3-9 to -6
-2y=-6−2y=−6
Divide both sides by -2
y= -6/-2
Two negatives make a positive.
y= 6/2
simplify
y=3
hope i helped
-lvr
how do I find the value of x for a triangle
Answer:
a+b+c=180
Step-by-step explanation:
If you already have the first 2 values, add them together and subtract that number from 180. The total of all angles added together should always equal 180.
Answer:
a+b+c= 180
Step-by-step explanation:
dy/dx of sinx is what???
Step-by-step explanation:
The derivative of sin x with respect to x is cos x.
d/dx (sin x) = cos x
Answer:cos x
Step-by-step explanation:
Una paid $2.14 for a notebook. She gave the cashier a $5 bill.
How much change did she receive?
Answer:
$2.86 thats how much sh gets back
Answer:2.86
Step-by-step explanation: 5 - 2.14 = 2.86
help fast pls i dont have much time
Answer:
5 yards
Step-by-step explanation:
Write down 2 equivalent ratios to 3:5.
Jason is making punch by mixing of a cup of orange juice and of a cup of mango juice. He wants to mix the orange juice and mango juice in the same ratio to make 21 cups of punch. Use the table to determine how many cups of orange juice and mango juice he will need.
Step-by-step explanation:
the answer is 42 because 2 times the 21 equals 42
Can someone please tell me what this means? I don’t understand this will give brainliest please help
Answer:
1/2 of the dots
Step-by-step explanation:
The number of dots in a 5 by 8 array is 5*8 = 40 dots
The number of dots in the t is 20
faction = part/ whole
20/40 = 1/2
its 1/2
8x5=40
40/20=1/2
?/24 A refrigerator is priced at $525.50. There is a 7% sales tax rate. What is the sales tax for the refrigerator in dollars and cents? Round to the nearest penny
Answer: The sales tax is $36.79
Step-by-step explanation:
Multiply the sales tax percent by the money to find how much the sale tax is.
7% * 525.50 = 36.785 which rounds to 36.79 to the nearest penny.
The required amount of sales tax for the refrigerator is $36.785.
As mentioned in the question, a refrigerator is priced at $525.50. There is a 7% sales tax rate. The sales tax for the refrigerator in dollars and cents is to be determined.
The percentage is the ratio of the composition of matter to the overall composition of matter multiplied by 100.
Here,
The total price of the sales tax = $525.50
Sales tax is 7%,
sales tax= 525.50 × 7%
sales tax = $36.785
Thus, the required amount of sales tax for the refrigerator is $36.785.
Learn more about percentages here:
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PLEASE help me on this it’s GEOMETRY DO NOT waste my answers PLEASE help me it’s URGENT
Answer:
Step-by-step explanation:
I think it's B (GBF=ECF) but I could be wrong. I only took geometry last year but I think that's your best option... good luck!
CAN SOMEONE PLEASE HELP ME FIND THE AREA OF A HEXAGON
Answer:
the answer is 57.12
Step-by-step explanation:
so the area of the rectangle is 74.24, thats where you get the 8 x 9.28, which is important. so next we're going to go is 9.28-5 which equals 4.28, and that is what the total bottom of 2 triangles would be, (if you drew a rectangle around it). the you would divide 4.28 by 2 to get 2.14, which is the value of 1. next you do 2.14 x 4 and get 8.56. then divide 8.56 by 2 and get back to 4.28. you take 4.28 and multiply it by 4 to get 17.12. from there on you do, 74.24 - 17.12 and get 57.12.
I NEED HELP QUICK Complete the division problem by determining the number that should be placed in the box. (4 points)
Division bracket with 14 on the left, 7658 inside, and 547 above it. Underneath the 7658, there is a minus 7000. Then there is a solid line with 658 under the line. There is a minus sign and an empty box followed by a solid line. Beneath the line, there is a 98 minus 98 underneath. There is a solid line and a 0 to end the problem.
Answer:
560
Step-by-step explanation:
547
14 | 7658
-7000
658
- 560
98
- 98
0
HELLLLLPPPPPP!!!!EASY!!!!!EASY!!!!!EASY!!!!!EASY!!!!!EASY!!!!!EASY!!!!!EASY!!!!!EASY!!!!!
EASY!!!!!EASY!!!!!EASY!!!!!EASY!!!!!EASY!!!!!EASY!!!!!EASY!!!!!EASY!!!!!EASY!!!!!EASY!!!!!EASY!!!!!PLEASE!!! IT IS SORT OF EASY!!!!!
Answer:
It would be B. Fuction 1 has the larger maximum at (4,1) because the maximum point for Fuction 1 is at (4,1) becuase that the highest point/vertex it goes.
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
what does 7/8-6/7 equle
Answer:
1/56
Step-by-step explanation:
7
8
−
6
7
=
1
56
(Decimal: 0.017857)
Answer: 0.01785714285 is what it is in decimal form AND
1/56 in fraction form.
Step-by-step explanation:
So we are given 7/8 - 6/7.
WE have to find what it is:
0.01785714285 is what it is in decimal form AND
1/56
what is 4.414*10’9 in standard form
Answer:
4,414,000,000
Step-by-step explanation:
4.414x10^9, move the decimal place 9 places to the left.
Answer:
4,414,000,000
Step-by-step explanation:
4.414 x 10⁹
= 4.414 x 1,000,000,000
= 4,414,000,000
20pt. please help i need it for today :(
_____
the cost of cheese pizza is $9.99 Plus $0.35 for each additional topping t.
_____
A. Write an inequality that can be used to represent the cost of a pizza that is at most $12 .
B. what is the most number of toppings that a pizza can have and still be at most $12.
Answer:
The inequality is this 9.99+.35x>12
It cant be over 12 so it has to be less than or equal to 12. The most amount of toppings you can have is 5.
:)
Answer:
9.99 + 0.35x > 12
Step-by-step explanation: