Answer: B. The product of P and S is always a rational number.
Step-by-step explanation: The product AND sum of two rational numbers will ALWAYS be rational.
If 6 pennies are in each pile how many pennies are in nine piles?
Answer:45
Step-by-step explanation:
Answer:
This is so easy it's basically 6x9 which isssss, 54 lol,
Step-by-step explanation:
can someone help me for once ?
Answer:
The answer is A)-4,6
Step-by-step explanation:
sorry if wrong
hope this helps
plz give brainliest
What is the surface area of this figure?
5 m
5 m
10 m
3 m
O 520 m2
272 m2
O 400 m
O 352 m
Answer: it’s 400
Step-by-step explanation:
What is an equation of the line that passes through the points (4,-1) and (8,5)?
Answer:
y=3/2x-7
Step-by-step explanation:
the equation of the line for slope-intercept form is y=mx+b, where m is the slope and b is the y intercept.
we are given two points: (4,-1) and (8,5)
the equation for slope is (y2-y1)/(x2-x1)
label the points:
x1=4
y1=-1
x2=8
y2=5
now substitute into the equation:
m=(5--1)/(8-4)
m=6/4
m=3/2
the slope of the line is 3/2
here is our equation so far:
y=3/2x+b
we need to find b
since the equation will pass through the points, we can substitute either one into the equation to find b
let's use (4,-1) as an example
substitute into the equation
-1=3/2(4)+b
-1=6+b
-7=b
the y intercept is -7
so the equation is y=3/2x-7
hope this helps!
A pack of batteries that contains nine batteries costs $20. Determine the cost per
battery.
Answer:
$2.22
Step-by-step explanation:
About how many centimeters are in 6.25 inches if 1 inch is about 2.5 centimeters? Show your reasoning.
heheheheheh im so smarts (not really)
Answer:
6.25inch=15.625cm
Step-by-step explanation:
1inch=2.5cm
6.25*2.5=15.625cm
An angle measures 148° more than the measure of its supplementary angle. What is the measure of each angle? AND DONT PLAGERISE!!!
Answer:
Step-by-step explanation:
Supplementary angles add up to 180°.
“θ is 148° more than its supplement”
Supplement of θ = 180°-θ
θ = (180°-θ) + 148°
2θ = 328°
θ = 164°
Supplement of θ = 180°-164° = 16°
Help pls!! Which of the following most specifically describes quadrilateral QUAD?
Answer:
I mean I think they are all quadrilateral, but the one that is congruent and perpendicular on both sides is a square.
Step-by-step explanation:
The diameter of a circle is 24 meters. What is the circle's area? Use 3.14 for .
Answer:
To get the circumference, multiply the diameter by pi. You have the diameter in meters, and you were given an approximate value of pi. Multiply these 2 numbers, and get the circumference in meters.
Step-by-step explanation:
Answer:
144π or about 452.39
Step-by-step explanation:
Diameter = 24 meters
Radius = diameter/2 = 12 meters
Area of a circle = π*radius*radius = π*radius^2
Area = π*12^2 = 144π = 452.39
If Jen run for 15 minutes and goes 120meters, how fast did she run?
Answer:
8 meters per minute
Step-by-step explanation:
120/50=8
Hope this helps! :)
Answer:
8 meters/second
Step-by-step explanation:
Divide the distance(120 meters) by the time(15 minutes) to find the answer. the formula for any speed problem is d/t.
Hope this helps!
15 POINTS PLEASE ANSWER
What equation can be used to find the following: "9 is 45% of what number"
Answer:
20
Step-by-step explanation:
45% of x=9
x=9/0.45 = 20
CAN SOMEONE PLEASE HELP ME ON THIS
Answer:
a) $525 CAD
b) $168.30 per day
c) $38.05
Step-by-step explanation:
a) 1 USD = 500
1.05CAD x
cross-multiply: x = $525 CAD
b) 504.90 / 3 = 168.30 per day
c) 1 USD = x
1.05CAD 39.95
cross-multiply: 1.05x = 39.95
x = 39.95 / 1.05
x = $38.05 USD
Solve for x
8x+1>−31
[tex]8x + 1 > - 31 \\ 8x > - 1 - 31 \\ 8x > - 32 \\ x > \frac{ - 32}{8} \\ x > - 4[/tex]
simplify 7x-5xy+3-2x-2xy-1
Answer:
5x-3xy+2?
srry if its wrong
Answer:
5x- 3xy +2
Step-by-step explanation:
Follow the rule of PEMDAS to simplify expressions.
Bob and Sue are meeting on a stairway. Bob is at the top and Sue is at the bottom. There are 9 steps
from bottom to top. Bob can skip a step each time since he is going down, Sue will not skip any steps. On
which step will they meet.
Answer:
Bob is at the top, so he starts at step 9.
Sue is at the bottom, so she is at the step 0 (this is the floor, before stepping on step 1)
Sue climbs from one step on one step.
Then she if she climbs n times, she will be at the step number:
S(n) = 0 + 1*n
And Bob goes down by 2 steps each time, then after he goes down n times, his position will be:
B(n) = 9 - 2*n
We want to see when they meet, then we need to solve:
S(n) = B(n)
1*n = 9 - 2*n
1*n + 2*n = 9
3*n = 9
n = 9/3 = 3
n = 3.
This means that they meet a the step:
S(3) = 3*1 = 3
B(3) = 9 - 2*3 = 9 - 6 = 3
They meet at the third steep.
Given the figure as marked. What is x?
Answer:
6
Step-by-step explanation:
Using the similarity theorem f the triangle
(4+6)/x+9 = 4/x
10/x+9 = 4/x
Cross multiply
10x =4(x+9)
10x = 4x+36
10x-4x = 36
6x = 36
x = 6
Hence the value of x is 6
Hi guys can you answer my math question
Answer:
4
Step-by-step explanation:
It is. I just know it lol
Answer:
Figure 3
Step-by-step explanation:
What is the area of this rectangle?
Answer:
15 cm squared
area =l x w
so 3 x 5= 15
Step-by-step explanation:
Answer:
15cm
Step-by-step explanation:
Amy has the cards below:
3, 4, 5, 6, 7, 8
Select the letter that matches the probability of the dice landing on 3:
(diagram in the image attached).
Answer:
B (1/6)
Step-by-step explanation:
The cards she draws doesn't affect what number the dice lands on. 1 every 6 times on average the dice lands on 6 so there is a 1/6 probability represented by B.
Select all shapes that have a volume of \small 36\pi cubic units.
a
b
c
d
e
f
g
Answer:
Step-by-step explanation:
Chelsea is making a kite in the shape of a triangle. To determine if the triangle is a right triangle, Chelsea completed the following steps.
Step 1:
Find the side lengths of the triangle: 30 inches, 24 inches, 18 inches.
Step 2:
Substitute the values into the Pythagorean theorem: 18 squared + 24 squared = 30 squared.
Step 3:
Combine like terms: (18 + 24) squared = 30 squared.
Step 4:
Evaluate each side: 1764 not-equals 900.
Chelsea says the triangle is not a right triangle. Which best describes the accuracy of her explanation?
The triangle is actually a right triangle. In step 2, Chelsea incorrectly substituted the values into the Pythagorean theorem.
The triangle is not a right triangle, but in step 2 Chelsea incorrectly substituted the values into the Pythagorean theorem.
The triangle is actually a right triangle. In step 3, Chelsea incorrectly rewrote the expression on the left side of the equation.
The triangle is not a right triangle, but in step 3, Chelsea incorrectly rewrote the expression on the left side of the equation.
(help!) What is the relationship between the ratios of the Perimeter and the ratios of the Area?
Perimeter Area
2:3 4:9
3:5 9:25
Answer:
4.5 I think
Step-by-step explanation:
what is the probability that at least one of their children will be a boy? if a couple is planing on having 3
Answer:
You can see that the chance of having at least one boy is 1/2 in the first generation, 3/4 in the second, and 7/8 in the third.
Step-by-step explanation:
I do not get this question: 6b-5b+(-8b)=?
Answer:
-7b
Step-by-step explanation:
Ok soo you have add the terms.
1b+(-8b)=-7b
Have a good!!
Answer:
-9b
Step-by-step explanation:
i'm assuming this is just combining like terms so if you ignore the (b) you will have
6-5+(-8)
-1+(-8)
-9
then you put back the variable and you get -9b
The circumference of a circle is 25π cm. What is the area, in square centimeters? Express your answer in terms of \piπ.
Answer:
Area = 156.25 pi square centimetres
Step-by-step explanation:
circumference = 》
[tex]2 \: \pi\:r[/tex]
so,
=》
[tex]2 \: \pi \: r = 25\pi[/tex]
=》
[tex]r = 25 \div 2[/tex]
=》
[tex]r = 12.5[/tex]
now, the area = 》
[tex]\pi \: r \: {}^{2} [/tex]
=》
[tex]\ pi \times 12.5 \times 12.5[/tex]
=》
[tex]156.25 pi square centimetersLeah has just inherited $12,000. She wants to invest the money so that she can increase the value of
her inheritance. What are some of the ways she can do this?
1. Leah wants to invest the $12,000 in an account that pays 4.5% annual interest.
a. Write equations for the amount A(t) that will be in the account after t years, if the interest is
compounded continuously, daily, and monthly. Then, find the amount after 10 years, rounded
to the nearest cent, for each method of compounding. Complete the table
When interset compounded continuously so the amount after 10 years the amount will be $18819.75, when n = 365 and t = 10 years amount will be $18819.22, when n = 12 and t = 10 years amount will be $18803.91.
What is compound interest?It is defined as the interest on the principal value or deposit and the interest which is gained on the principal value in the previous year.
We can calculate the compound interest using the below formula:
[tex]\rm A = P(1+\dfrac{r}{n})^{nt}[/tex]
Where A = Final amount
P = Principal amount
r = annual rate of interest
n = how many times interest is compounded per year
t = How long the money is deposited or borrowed (in years)
If the interest compounded continuously:
P = $12000, r = 4.5% = 0.045%
[tex]\rm A(t) =12000(e)^{0.045t}[/tex]
When t = 10 years, plug this value in the above expression and calculating, we get;
A(10) = $18819.75
When interest compounded daily:
[tex]\rm A(t) = 12000(1+\dfrac{0.045}{365})^{365t}[/tex]
Plug t = 10 years:
We get;
A(10) = $18819.22
Similarly,
If interest is compounded monthly:
n = 12 and t =10, we get:
A(10) = $18803.91
Thus, when interset compounded continuously so the amount after 10 years the amount will be $18819.75, when n = 365 and t = 10 years amount will be $18819.22, when n = 12 and t = 10 years amount will be $18803.91.
Learn more about the compound interest here:
brainly.com/question/26457073
#SPJ1
pls someone help me i need help
Answer:
use the matway well help you get the answers
Write the equation of the line that passes through the points (-6, 4) and (-3,-2).
Put your answer in fully reduced point-slope form, unless it is a vertical or horizontal
line.
Answer:
y=-2x-8
Step-by-step explanation:
-2-4/-3-(-6)=-6/3=-2
y-4=-2(x-(-6))
y-4=-2(x+6)
y-4=-2x-12
y=-2x-12=4
y=-2x-8
Please help ASAP!
thx :)
What is the approximate volume of this cylinder.
Answer: 502.655
Step-by-step explanation:
just search cylinder calculator
Use the Distributive Property to evaluate the expression.
(16 - 6)2
Answer:
20
Step-by-step explanation: