Which is the best estimate of 26 × 604?
Answer:
The answer is actually 18,000 because for 26 your rounding the nearest ten and for 604 you rounding the nearest hundred so it is 30 x 600 = 18,000
Step-by-step explanation:
The best estimation of 26 × 604 is 18000.
What is Number system?A number system is defined as a system of writing to express numbers.
We need to find estimate of 26 × 604
Approximating a quantity to the required accuracy is known as estimation. This estimation we can do by rounding off the numbers involved in the calculation and get a rough answer.
Now let us round off the number 26 to the nearest tenths.
26 is rounded to 30.
604 is round off to the nearest hundredth which is 600.
Now let us multiply 30 with 600 to get the estimated value of 26 × 604.
30×600
18000
Hence the best estimation of 26 × 604 is 18000.
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Explain the difference between a concave polygon and a convex polygon. (please please pleaseeeeee help)
Answer:
Every polygon is either convex or concave. The difference between convex and concave polygons lies in the measures of their angles. For a polygon to be convex, all of its interior angles must be less than 180 degrees. Otherwise, the polygon is concave.
Which number sentence has the solution of a = 16?
1.) a/2 + 2 = 6
2.) a/4-3 = 1
3.) a/6 + 4 = 2
4.) a/2 - 12 = 20
Find an
equation for the perpendicular bisector of the line segment whose endpoints
e (-3, -8) and (5,-4).
are
Answer:
[tex]y=-2x-4[/tex]
Step-by-step explanation:
Perpendicular Bisector
The bisector of a segment defined by points (x1,y1) and (x2,y2) must pass by the midpoint of the segment.
The midpoint (xm,ym) is calculated as follows:
[tex]\displaystyle x_m=\frac{x_1+x_2}{2}[/tex]
[tex]\displaystyle y_m=\frac{y_1+y_2}{2}[/tex]
The endpoints of the segment are (-3,-8) and (5,-4), thus the midpoint M is:
[tex]\displaystyle x_m=\frac{-3+5}{2}=1[/tex]
[tex]\displaystyle y_m=\frac{-8-4}{2}=-6[/tex]
Midpoint: M(1,-6)
Let's find the slope of the given segment. The slope can be calculated with the formula:
[tex]\displaystyle m_1=\frac{y_2-y_1}{x_2-x_1}[/tex]
[tex]\displaystyle m_1=\frac{-4+8}{5+3}=\frac{1}{2}[/tex]
If the bisector is also perpendicular, its slope m2 and the slope of the segment m1 must comply:
[tex]m_1.m_2=-1[/tex]
Solving for m2:
[tex]\displaystyle m_2=-\frac{1}{m_1}=-\frac{1}{\frac{1}{2}}=-2[/tex]
Once we have the slope -2 and the point through which our line must pass (1,-6), we compute the equation in its point-slope form:
[tex]y-y_o=m(x-x_o)[/tex]
[tex]y-(-6)=-2(x-1)[/tex]
Operating
[tex]y+6=-2(x-1)[/tex]
[tex]y+6=-2x+2[/tex]
Rearranging
[tex]\boxed{y=-2x-4}[/tex]
determine the slope:
7x + 8y - 16 = 0
PLEASE HELP AND SHOW WORK THANK YOUU:)
Answer:
Step-by-step explanation:
Isolate 8y.
7x + 8y - 16 = 0
-8y -8y
Divide by -8.
7x - 16 = -8y
/-8 /-8 /-8
-7/8x + 2 = y
y = -7/8x + 2
Answer:
8y=-7x+16
y=(-7/8)x+2
y=mx+b
slope=m=-7/8
Step-by-step explanation:
What is the first question you ask yourself when factoring a polynomial?
Help please i’m so confused
Answer:
dis is easy c :D
Step-by-step explanation:
Please provide an explanation. Thank you
Answer:
42 seats were filled
Step-by-step explanation:
3/4*56=42
3/4 of 56 is 42
Answer:
42
Step-by-step explanation:
To find out what 3/4 of 56 are, you must divide 3 and 4, then multiply it by 56.
Work; 3/4 = 0.75 56 x 0.75 = 42
Hope this helps!
-Jerc
14/(3y+5) = 3/y
can someone please explain the steps for me?
Answer:
Step-by-step explanation:
Multiply all terms by the same value to eliminate fraction denominators
14÷(3y+5)=3÷y
[tex]\frac {14} {3y+5}= \frac {3}{y}[/tex]
[tex](3y+5)(y( \frac {14}{3y+5})=[/tex] (3y+5)·y·[tex]\frac {3} {y}[/tex]
Simplify
Combine multiplied terms into a single fraction
Re-order terms so constants are on the left
Cancel terms that are in both the numerator and denominator
Divide by 1
Cancel multiplied terms that are in the denominator
Re-order terms so constants are on the left
Distribute:
14y=9y+15
Subtract 9
okay, so I know someone else asked for help on this and it said it was 280, but it was not correct on mine for some reason. So, someone please help.
Eric traveled to three cities on a single highway. The distance from his original location to the first city was 100 miles more than the distance from the first city to the second city. The distance from the second city to the third city was 10 miles less than the distance from the first city to the second city. If the distance from his original location to the first city and the distance from the second city to the third city were the same, what was the total distance Eric traveled?
Possible Answers: I searched too as I’m not very smart but I found one that happened to be multiple choice and this were the options. A. 120 miles
B. 200 miles C. 280 miles D. 360 miles E.400 miles
Step-by-step explanation: Personally I believe it should be 400.
Meredith invested $5,500 into an account that earned 5% interest per year. When she cashed out the investment to use it as a down payment for a new car, it was worth a total of $7,739.05.
Which equation describes Meredith's investment based on t, the number of years she kept the account open?
HINT: total worth= investment amount (1.05)^t
A: t= $7,739.05 ($5,500)^ 0.05
B: $7,739.05= $5,500 (1.05) ^t
C: t= $7,739.05 ($5,500)^ 1.05
D: $7,739.05 $5,500 (0.05) ^t
PLEASE HELP ME ASAP
PLEASE EXPLAIN HOW YOU GOT THE ANSWER
Answer:
T = 5.79 (approximated)
Step-by-step explanation:
Using I = PRT/100
where P = The principal amount invested = $5500
R = Rate of Interest =5%
T = Time (in years)
I = Interest = $7,739.05 - $5500 = $2239.05
Substituting the above values in the formula
I = PRT/100 becomes
2239.05 = 7,739.05 * 5 * t / 100 -------- Multiply 100 to both sides
2239.05 * 100 = 100 * 7739.05 * 5 * t / 100
223905 = 7739.05 * 5 * t
223905 = 38695.25t
Divide both sides by 38695.25t
223905/38695.25 = t
5.786369 = t
T = 5.79 (approximated)
Prove that the conjecture is false by providing a counter example.
Answer:
Any negative number would be a counterexample.
Step-by-step explanation:
Since negative numbers get smaller as you multiply them by a larger number, this would prove this conjecture false.
Below are two parallel lines with a third line intersecting them
X = ?
Answer:
The answer is 50° ( corresponding angles)
I need to simplify this but if how can someone please help ASAP
Answer:
[tex]\frac{-1+-i\sqrt{17} }{6}[/tex]
Step-by-step explanation:
[tex]\sqrt{68}=2\sqrt{17}[/tex]
simplify
45÷(-3)
hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
Answer:
-15
Step-by-step explanation:
45 divided by negative 3. All you have to do is make it into multiplication. -3 × -15 = 45
What are some Integers that are not whole numbers? Please help its due tomorrow!! and its currently 8pm. I need this! I'll give you brainliest.
Answer:
0,-1,-2,-3,-4,-5,-6,-7
Step-by-step explanation:
Any negative number is an integer, that is not a whole number
help me
josh takes 20 mins to weed 6 equal rows of vegetable plants in his garden what is his unit rate per hour for weeding these rows of his garden
An online store sells 236 hats per month how many hats are sold in a year
Answer:
2,832 hats are sold per year.
Step-by-step explanation:
We are given the information of 236 hats per month. Since there are twelve months in the year, we must multiply 236 by 12, which gives us our yearly total of 2,832. :) Please mark Brainliest.
A pet store sells mice, reptiles, and birds.
Let event A = A customer buys a mouse.
Let event B = A customer buys a bird.
What does P(A or B) = 0.25 mean in terms of this problem?
A. Buying a mouse and buying a bird are mutually exclusive events.
B. The probability that a customer buys neither a mouse nor a bird is
25%.
C. The probability that a customer buys both a mouse and a bird is
25%.
D. The probability that a customer buys either a mouse or a bird is
25%.
The correct answer is: The probability that a customer buys either a mouse or a bird is 25%.
What is probability?Probability is a measure of the likelihood of an event to occur. Many events cannot be predicted with total certainty. We can predict only the chance of an event to occur i.e. how likely they are to happen, using it.
Given that, a pet store sells mice, reptiles, and birds,
Let event A = A customer buys a mouse.
Let event B = A customer buys a bird.
We need to tell that,
What does P(A or B) = 0.25 mean in terms of this problem,
So, here the statement given is saying that the 0.25 is the probability that a customer will buy either a mouse or bird,
Hence, the correct answer is: The probability that a customer buys either a mouse or a bird is 25%.
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A sandwich costs $5.45 and a soda costs $2.15. How much change will you get from a $10 bill? Hi
Answer:
$2.40
Step-by-step explanation:
5.45 + 2.15 = 7.60
10 - 7.60 = $2.40
Answer:
You will get 2.6.
Step-by-step explanation:
add the 5.45 and 2.15 which will give you 7.6 then subtract that by 10.00.
What is the value of x when solving the Equation 2x + 1 = -x + 4 Using the Algebra tiles
Answer:
1
Step-by-step explanation:
Let's solve your equation step-by-step.
2x+1=−x+4
Step 1: Add x to both sides.
2x+1+x=−x+4+x
3x+1=4
Step 2: Subtract 1 from both sides.
3x+1−1=4−1
3x=3
Step 3: Divide both sides by 3.
3x
3
=
3
3
x=1
BRAINLIEST?
simpfly by dividing [-5/8] divided by [-3/4]
Answer:
-5/-6
Step-by-step explanation:
you just need to flip the second one around and multiply across afterwards
The M & P Pencil company that makes mechanical pencils expects to have two defective pencils for every 125 made. What is the number of defective pencils they will have in a batch of 4,375?_________
CAN YOU GUYS PLEASE HELP ME OUT!!!
Answer:70 i believe
Step-by-step explanation:
(4,375/125)=35
35*2=60
Which of the following is an arithmetic sequence?
-2, 4, -6, 8, ...
2, 4, 8, 16, ...
-8, -6, -4, -2, ...
Answer:
-8, -6, -4, -2
Step-by-step explanation:
This is the only sequence that is using constant repetition of addition, either adding positive numbers or adding negative numbers (the same positive or negative number). This one that you answered is always adding 2 from the prior number, so -6 = -8+2, -4=-6+2, and so on.
The first one is an odd combo where you add and subtract different values different signs each time, it is not constant addition of the same number.
The second one is multiplication which is not arithmetic, so that means it is constantly being multiplied by 2 each time.
Answer:-8,-6,-4,-2
Step-by-step The last one because it is consistent by adding 2 the other ones ad then subtract or multiply and you can do that so the last on
Plzz.......help with algebra
Answer:
x equals 12
Step-by-step explanation:
first you distribute 1/4 to the parentheses, then you multiply by 4 on both sides, collect like terms, move the constant to the right, calculate, and then divide both sides.
(2x^4 + 3x^3 – 5x - 19)+(x^2 + 1)
Answer:
2x 4 +3x 3 +x 2 −5x−18
Step-by-step explanation:
The expression -16t ^2+ 48t can be written as the product of -16t with which of the following?
(1) 16t-3
(3) 16t+3
(2) t+3
(4) t-3
Answer:
4) t -3
Step-by-step explanation:
-16t² = -16 * t * t
48t = (-16t) * (-3)
-16t² + 48t = (-16t) * t + (-16t) *(-3)
= (-16t) [ t - 3]
Are there any numbers that are not included in the real number system?
Answer:
yes
Step-by-step explanation:
Add the following military times:
0645 + 0745 =
Answer:
2316
Step-by-step explanation:
use a calculator
Answer:
0645+0745= 1390 but there are not 90 mins in an hour so you roll over 60 over those min to get 1430
2:30
explanation:
I NEED HELP ASAP!!!!!
PLEASEEEEE
Answer:
5) y = -8x -4
6) y = 2x + 3
Step-by-step explanation:
Slope is rise over run. For the first problem, you went down 8 and over 1 to your next point. Going down means you have a negative slope. -8/1 is 8. Your y intercept is where the line meets the y axis. The line meets the y axis at -4.
The line meets a new point every time it goes over 1 and up 2. Rise over run means 2/1. The line goes up so the slope is positive. The line meets the y axis at 3
