Answer:
Javier estimates the square root of 18 in the following way: √18=2√9=2*3=6 Explain why her reasoning is incorrect. Without using a calculator, the square root of 18 will be between what two values (remember to look for perfect squares/perfect square roots)? Show your reasoning. You do not need to find the decimal equivalent of the root.
Answer:
Solution given:
√18√[9×2]3√2 is a perfect square of √18.not 6.2496 of what number is 6?
24% of is 6.
Sonia walks to her aunt's house. She leaves home at 1025. She walks a total of 12km at an average speed of 5km/h. Work out the time Sonia arrives at her aunt's house.
Answer: 1249 hrs
Step-by-step explanation:
Sophia walked for 12 km to get to her aunt's house.
She did this at a speed of 5km/h which means that the time taken was:
Time = Distance / Speed
= 12 / 5
= 2.4 hours
2.4 in hours:
= 0.4 * 60 minutes
= 24 minutes
= 2 hours 24 minutes
If she left at 1025, she would arrive at:
= 1025 + 2 hours 24
= 1249 hrs
Write an equation in the form of y= mx + b that represents this linear function.
Answer:
y = -4x+1.5
Step-by-step explanation:
I just plugged it into desmos honestly :/
Fred borrows $2710 at 3.8% simple interest per month. When Fred pays the loan back 3 months later, what is the total amount that Fred ends up repaying?
Can someone help on really stuck
Mr. Tan bought a mobile phone at a discount of 25 %. The original price of mobile phone was of $400. How much did he pay for the mobile phone.?
Answer:
$300
Step-by-step explanation:
$400 is 100% of the price
25% is a quarter of 100%
A quarter of 400 is 100 so the discount was $100
400-100 =300
The perimeters of two squares in the model are given. Find the perimeter of the third square. P=12 units p=16 units
Answer:
20 units
Step-by-step explanation:
1) find the side of the first square
side = P / 4 = 12:4 = 3 units
2) find the side of the second square
side = P / 4 = 16 : 4 = 4 units
3) use the Pythagorean theorem to find the hypotenuse of the right triangle
[tex]\sqrt{4^2 + 3^2} = \sqrt{16 + 9} = \sqrt{25} = 5[/tex] units
4) find the perimeter of the third square
P = side x 4 = 5 x 4 = 20 units
Answer:
20 units
Step-by-step explanation:
An investor puts $800 in an account that pays 2% interest compounded annually. Find the account balance after 6 years.
Answer:
$900.929
Step-by-step explanation:
hope it helps you
please mark me as brainlist
Please no links :) giving brainliest, try to answer as soon as you can :)
Answer:
102,9 cm^2
Step-by-step explanation:
First of all we can find the area of the two rectangles at the sides of the figure
A rectangle = length x width = 8 x 4 = 32 cm^2
the rectangles are two so:
32 x 2 = 64 cm^2
for the figure in the center we can proceed like this: we can initially assume that also it is a rectangle, so we have to find the length
length = 16-8 = 8 cm
A = 8^2 = 64 cm^2 (so we have discovered that is a square)
if we look we can see that there is also a semicircle that is not part of the figure. We have to find its area and subtract it to the area of the square
A semiciricle = (radius^2 π)/2
radius = 8/2 = 4 cm
A semicirlce = (4^2) π/2 = 25,13 cm^2
64 - 25,13 = 38,87 cm^2
At least we have to added up this value to the area of the two rectangles
total area = 38,87 + 64 = 102,87 = 102,9 cm^2
Each hour, every person who knows a rumor tells two other people. If one person starts the rumor, then after the first hour, three people know the rumor. The next hour, those three people each tell two more people. After eight hours, how many people will know the rumor? You do not have to include units in your answer.
Answer:
384
Step-by-step explanation:
if each person who knows it tell 2 people then its doubling every hour
and for 8 hours the equation is
3x[tex]2^{7}[/tex] (to seventh power because 1st hour already happened)
3x2x2x2x2x2x2x2
6x2x2x2x2x2x2
12x2x2x2x2x2
24x2x2x2x2
48x2x2x2
96x2x2
192x2
384
Whats the best grunge rock band?
Answer:
Matallica
Step-by-step explanation:
It's my personal favorite but also Nervana....
Answer: Nirvana
Step-by-step explanation: hoped this helped :)
Simplify each expression using the properties of exponents and match it to the correct answer
Pleaseeee , I’ll give you Brainlest:)
Answer:
30 days
Step-by-step explanation:
Answer:
30
Step-by-step explanation:
10^12=1000000000000
1000000000000/24=4.66666666_
that means 4 and a half days but put in 4.5.(I didn't feel like putting the rest of the work i forgot, its 30
if john wallked 50 miles than mira,how many miles do you think mira walked if they both walked a total of 290 miles.
Answer:
Mira = 95 miles
Step-by-step explanation:
Given
John walked 50 miles than Mira
The total miles walked is 290
To find
If John walked 50 miles more than Mira and the total miles walked including Mira is 290, then divide 290 by both of them. Once that is done, don't evenly distribute the miles to them. Because remember, John walked 50 miles more than Mira. So we just distribute this with John having 50 miles more. By subtracting 50 from Mira's share and give it to John
Solve
Divide 290 by 2290 ÷ 2 = 145
Subtract 50 from Mira's share and give it to JohnMira's 145 - 50 = 95
Add that 50 to John's 145John's 145 + 50 = 195
Therefore, John ran 195 miles and Mira ran 95 miles.
"The following is a kite. Find m
Q=79
R=(11x-6)
S=79
T=(4x+13)
What is 95% as a whole number
Answer:
95
Step-by-step explanation:
Answer:
95% of what? this question is incomplete.
30 POINTS!!! PLEASE ANSWER THE QUESTIONS IN THE PICTURES!!! EACH QUESTION HAS 2 ANSWERS!!!!
Answer:
Step-by-step explanation:
I believe the first question is 1.9
second: 48.2
sorry didn't understand the third one :(
good luck in your exam!Determine the equation of the midline of the following graph. ITS NOT HARD I JUSST DONT KNOW IT!!!!HELP PLEASE.
Answer:
y=1
Step-by-step explanation:
it is in the middle of the maximum and minimum.
what is the domain? thank you
Answer:
D: {0 ≤ x ≤ 6.25}
Step-by-step explanation:
6.25 is an approximation
how many hundreths is 8.3
Answer:
3 tenths and 0 hundreths
Step-by-step explanation:
3 is in the tenths place.
So 3 tenths.
There is no value in the hundreths place
So 0 hundreths
Rosa has rows of plants. There are plants in each row. Each plant has flowers. How many flowers are there in all?
Answer:
There will be total 855 flowers.
Step-by-step explanation:
Suppose there are 9 total rows and each row has total 19 plant and each plant has 5 flowers.
Then the number of flowers can be found out by simply multiplying
9*19*5= 855
There will be total 855 flowers (if the above given numbers assumed are the same as the original question)
IF the numbers are changed from the above assumed numbers even then the answer can be obtained by simply multiplying the numbers to get the total numbers of flowers.
Help me pls. Which decimal is less than 0.8?
Answer: 0.79
Step-by-step explanation: for example 79 is less than 80.
Need help need help need help need help
Answer:
Step-by-step explanation:
I believe that since both circles C & D are congruent, and TU is bisected into TW and WU, PS = 7.4/2 = 3.7
PS = 3.7
Answer:
it is 6.9
Step-by-step explanation:
i took the test
Which multiplication problem is equivalent to 2 3/4÷3 1/3?
A. 11/4 ⋅ 10/3
B. 4/11 ⋅ 10/3
C. 11/4 ⋅ 3/10
D. 4/11 ⋅ 3/10
During a blind taste test of 8 different
sodas, some people were asked to choose
a favorite. Each dot represents one person.
Taste Test
.
A
B
С
F
G
H
D E
Soda
If the ratio of people choosing B to people
choosing H stays the same, how many
people will choose H if the number of people
who choose B increases to 20?
F 6
G4
H5
J 3
Answer:
the answer is 5
Step-by-step explanation:
the ratio is 4:1 so if you increase B to 20 you divide by 4 to get 5.
20:5=4:1
Jeremiah spent $68 for concert tickets. He bought one adult ticket for $18 and several children's tickets for $10 each. Which number line represents the number of children's tickets Jeremiah bought?
Practice question — Given the trapezoid to the right find the length of legs in the following isosceles trapezoid
Given:
A figure of an isosceles trapezoid with bases 18 and 24, and the vertical height is 4.
To find:
The legs of the isosceles trapezoid.
Solution:
Draw another perpendicular and name the vertices as shown in the below figure.
From the figure it is clear that the AEFD is a rectangle. So,
[tex]EF=AD=18[/tex]
Since ABCD is an isosceles trapezoid, therefore in triangle ABE and DCF,
[tex]AB=DC[/tex] (Legs of isosceles trapezoid)
[tex]AE=DF[/tex] (Vertical height of isosceles trapezoid)
[tex]m\angle AEB=m\angle DFC[/tex] (Right angle)
[tex]\Delta ABE\cong \Delta DCF[/tex] (HL postulate)
[tex]BE=CF[/tex] (CPCTC)
Now,
[tex]BE+EF+FC=BC[/tex]
[tex]2BE+18=24[/tex]
[tex]2BE=24-18[/tex]
[tex]2BE=6[/tex]
[tex]BE=3[/tex]
Using Pythagoras theorem in triangle ABE, we get
[tex]Hypotenuse^2=Perpendicular^2+Base^2[/tex]
[tex](AB)^2=(AE)^2+(BE)^2[/tex]
[tex](AB)^2=(4)^2+(3)^2[/tex]
[tex](AB)^2=16+9[/tex]
[tex](AB)^2=25[/tex]
Taking square root on both sides, we get
[tex]AB=\pm \sqrt{25}[/tex]
[tex]AB=\pm 5[/tex]
Side length cannot be negative. So, [tex]AB=5[/tex].
Therefore, the length of legs in the given isosceles trapezoid is 5 units.
The arrow on the spinner is spun once. What is the probability that the arrow will land on a section labeled with a number greater than 3?
Answer:
it’s 1/4
Step-by-step explanation:
Unit 2 Test
Which postulate can be used to prove that the following triangles are congruent?
A) ASA
B sss
C SAS
DAAS
Please help i'm not doing good in math i will give you the crown
Answer:
B
Step-by-step explanation:
The format for quadrant 2 would be (-,+) and answer choice be fits that because it is(-3,2)