Answer:
6500-40=6460
Step-by-step explanation:
what duos e=mc² mean
Answer:
energy equals mass times the speed of light squared
Step-by-step explanation:
A cone has a radius of 3 units and a height of 4 units.
1. What is this volume of this cone?
2. Another cone has quadruple the radius, and the same height. How many times larger is the new cone’s volume?
Answer:
1. V = 37.7
2. V =603.19
Step-by-step explanation:
1. V = (3.14)×3^2 4/3
V =37.7
2. V=(3.14)×(3×4)^2 4/3
V = (3.14)×12^2 4/3
V = 603.19
Help please!!!
The finance charge on your credit card was supposed to be $12.22. Instead you were charged $19.54.
Find the absolute error and the relative error in the finance charge
Answer:The absolute error is that they said that the finance charge will be $12.22 but the charge ends up being $19.54 . As for the relative error is that they said that the charge will be $12.22 but the charge was $19.54 which means they were unsure what the charge was and failed to check what it actually was.
Step-by-step explanation:
Jill collected honey from 9 different beehives, and recorded the amount collected, in gallons, from each hive in the line plot shown:
She wants to write the value of each point marked on the number line above (Points A-D) in gallons. What is the value of A using fractions?
My brother needs help I don't remember this devilish stuff
Answer:
A= 6/8 gallons
Determine the unknown angle measures in a hexagon whose six angles measure 69°, 108°, 135°, 204°, b°, and 2b°.
Answer:
B = 68
Step-by-step explanation:
(6-2)×180 = 720
69+108+135+204+b+2b=720
516+3b=720
3b=720-516
3b=204
b= 68
Can you help me with this question?
Thanks!
Answer: 11 people like vanilla.
Step-by-step explanation: There are 50 people in this question. Since 22% of them like vanilla, multiply 0.22 and 50. That gives you 11. Therefore, 11 people out of 50 like vanilla.
In a survey, 150 seventh graders said that they had been to a foreign country. That number represented 20% of the students who were surveyed. How many students were surveyed?
Answer:
750
Step-by-step explanation:
150/2=7.5
7.5*100=750
750*0.2=150
which lists the multiple of 8 A. 8,16,24, 46 B.8,16,24,48 C.8,15,32,50 D.8,16,40,63
B. 8, 16, 24, 48
pls mark brainliest if helped c:
Jen sells flowers. She charges $2 per flower plug a $3 flat delivery fee. How many flowers did she deliver if she made $21?
Answer:
4 1/2 flowers
Step-by-step explanation:
2 + 3 = 5 and 4 x 5 = 20 and plus half a flower.
-1 subtracted by 2.5
Answer:
-3.5
Step-by-step explanation:
The intersection of three lines at one point and the measures of three angles are shown in this figure.
Answer:
D. 2x+71=180
Step-by-step explanation:
Six angles are represented, three are marked. The six angles add up to 360 (360 degrees in a circle). We know that the sum of all the marked angles equals 180, because each marked angle has an equal, unmarked, vertically opposite angle, and half of 360 is 180. Therefore we can write:
76+(x-5)+x=180
2x+71=180
50 points Type the correct answer I’m the box
find the value of 2xy+3yz-xyz, when x=2, y=-2, z=4
Step-by-step explanation:
[tex]x = 2[/tex]
[tex]y = - 2[/tex]
[tex]z = 4[/tex]
[tex] \: [/tex]
[tex] = 2xy + 3yz - xyz[/tex]
[tex] = y.(2x + 3z - xz)[/tex]
[tex] = y.(2x + z.(3 - x))[/tex]
[tex] = - 2.(2.2 + 4.(3 - 2))[/tex]
[tex] = - 2.(4 + 4.1)[/tex]
[tex] = - 2.(4 + 4)[/tex]
[tex] = - 2.8[/tex]
[tex] = - 16[/tex]
3) A sample of 42 grams of an unknown substance has a half-life of 1,300 years.
(a) Write an equation to determine the amount of substance, S, left after t years.
(b) Approximately how long will it take for 0.2 grams of substance to remain (to the nearest year)?
Answer:
a) [tex]S(t) = 42(0.9995)^t[/tex]
b) It will take 10,692 years.
Step-by-step explanation:
Exponential function to determine the amount of substance:
An exponential function to determine the amout of substance after t years is given by:
[tex]A(t) = A(0)(1-r)^{t}[/tex]
In which A(0) is the initial amount and r is the decay rate, as a decimal.
(a) Write an equation to determine the amount of substance, S, left after t years.
Half-life of 1300 years means that [tex]A(1300) = 0.5A(0)[/tex].
We use this to find r. So
[tex]A(t) = A(0)(1-r)^{t}[/tex]
[tex]0.5A(0) = A(0)(1-r)^{1300}[/tex]
[tex](1-r)^{1300} = 0.5[/tex]
[tex]\sqrt[1300]{(1-r)^{1300}} = \sqrt[1300]{0.5}[/tex]
[tex]1 - r = 0.9995[/tex]
[tex]r = 0.0005[/tex]
Sample of 42 grams means that [tex]A(0) = 42[/tex]. So
[tex]A(t) = A(0)(1-r)^{t}[/tex]
Replacing A by S, just for notation purposes
[tex]S(t) = 42(0.9995)^t[/tex]
(b) Approximately how long will it take for 0.2 grams of substance to remain (to the nearest year)?
This is t when [tex]S(t) = 0.2[/tex]. So
[tex]S(t) = 42(0.9995)^t[/tex]
[tex]0.2 = 42(0.9995)^t[/tex]
[tex](0.9995)^t = \frac{0.2}{42}[/tex]
[tex]\log{(0.9995)^t} = \log{\frac{0.2}{42}}[/tex]
[tex]t\log{0.9995} = \log{\frac{0.2}{42}}[/tex]
[tex]t = \frac{\log{\frac{0.2}{42}}}{\log{0.9995}}[/tex]
[tex]t = 10692[/tex]
It will take 10,692 years.
): If (6x-3)(6x+3)=ax^2-b, what is the value of a? What is the value of b?
A 15-passenger van is
rented for a family vacation.
The van rental is 460 per
day, plus a $145 insurance
fee. How many days can the
van be rented if they want to
spend no more than $625 on
the van rental. Write and
solve an inequality
Answer:
Inequality is 460x+ 145 [tex]\leq[/tex] 625 (I can't put the less than or equal to sign down sorry)
Step-by-step explanation:
2. Vernon practiced soccer 5 hours this week. He practiced 4 hours on weekdays and the rest over the weekend.
a. Write an equation that represents the situation. Define your variable.
b. What is the least common multiple of the denominators of 5 and 4 ? Show your work.
c. Solve the equation and interpret the solution. Show your work.
Answer:
a- Vernon practiced soccer 5 3/4hours this week. He practiced 4 1/3hours on weekdays and the rest over the weekend.
Step-by-step explanation:
Hope this helps
Help pls
What is the main detail when Multiplying a Difference of Squares?
There is no "A" Value
There is no "B" Value
There is no "C" Value
Ik it’s not c!
whats the answer (4.5 × 10^4) ÷ (300) =
1.) 1500
2.) 1.5 × 10-2
3.) 150
4.) 1.5 × 10^6
Answer:
the answer is 150
.....
Answer:
150
Step-by-step explanation:
(4.5 x 10^4)/300=(4.5 x 10,000)/300=45,000/300=150
thank u it really helped
Answer:
who are you thanking? Lol
Step-by-step explanation:
PLEASE ANSWER ASAP FOR BRAINLEST WITH WORK!!!!!!!!!!!!!!!!!!!!!!
here are some screenshots to help figure out the area of the figure!
thank you in advance!
Answer:
The area is 13
Step-by-step explanation:
By using the third picture you sent I figured out the area of both the triangle (area: 3) and the square (area: 4) and subtracted that from the area of the whole figure (20) to get the area of the shape.
Tell whether the line or segment is best described as a radius, chord, diameter, secant, or tangent of ⨀P
Answer:
Chord: Secant: Tangent: Radius: Diameter: Using String to Draw a Circle Tell whether the line, ray, or segment is best described as and the radius and the diameter as lengths. P secant point of tangency tangent.
TASK 2
Make some shapes
Plot each set of points on a number plane. Join the dots in order and name the shape formed.
1
(0, 0), (5, 0), (5,5) and (0,5)
Name of shape:
Step-by-step explanation:
The required shape is a square.
Refer to the attachment.
The sides of a square are equal. So, the answer is a square.
[Drawing Courtesy- Brainly app]
Nicole is choosing an outfit from the following. Pants: denim, black Shirts: green, yellow Shoes: sandals, tennis shoes She starts a tree diagram: A tree diagram. D branches to G and Y. B branches to G and Y. How many possible combinations are there? There are possible combinations.
Answer:
8 possible outcomes
Step-by-step explanation:
Answer:
8 is correct!!
Step-by-step explanation:
(111)-8,5
3.
Write the following integers in ascending order (smallest to biggest).
Do you
(i) -5,2,1,-8
(ii) -4,-3, -5,2
(iii) -10,-15,-7
Answer:
(I) -8, -5, 1, 2
(ii) -5, -4, -3, 2
(iii) -15, -10, -7
Step-by-step explanation:
You can think about what a number line looks like to solve problems like this, for example a number line that goes from -10 to 10 would look something like this, with smaller numbers on the left and bigger on the right
-10, -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
x^2 - 2x factorise fully
Answer:
(x-2)*x
Step-by-step explanation:
[tex]x^{2}-2x[/tex]
its maximum common divisor is x
[tex]\frac{x^{2}-2x }{x}[/tex]
[tex](x-2)*x[/tex]
Which of the following are identities? Check all that apply.
A. cos(x+y)+cos(x-y)=cos^2x-sin^2y
B. sin(x-pi)=-sinx
C. sin(x+y)-sin(x-y)=2cosx siny
D. cos(x+y)+cos(x-y)=2cosx cosy
Answer: B, C, D
Step-by-step explanation:
/\.p.€.x
Since, tigonometric identities are equal on both the sides (left hand side and right hand side) of the equation, Options (B), (C), and (D) represent the dientities.
Identification of the tigonometric identites: Trigonometric identities are the equalities having two trigonometric expressions equal for all values of the variables on both the sides.To prove the expression as identity prove both the sides of the equation are equal.
Option A
cos(x + y) + cos(x - y) = cos²2x - sin²2y
Left hand side = cos(x + y) + cos(x - y)
= cosx.cosy - sinx. siny + cosx.cosy + sinx.siny
= 2(cosx.cosy)
But the left side of the equation is (cos²2x - sin²2y).
Hence both the sides are not equal and it's not an identity.
OPtion (B).
sin(x - π) = -sinx
Left hand side = sin(x - π)
= -sinx sin(x - π)
= sinx.cosπ - cosx.sinπ
= -sinx - 0
= -sinx [Right hand side]
Since, both the sides are equal, it's an identity.
Option (C).
sin(x + y) - sin(x - y) = 2cosx.siny
Left hand side = sin(x + y) - sin(x - y)
= sinx.cosy + cosx.siny - sinx.cosy + cosx.siny
= 2cosx.siny
= Right hand side
Since, both the sides are equal, it's an identity.
Option (D).
cos(x + y) + cos(x - y) = 2cosx.cosy
Left hand side = cos(x + y) + cos(x - y)
= cosx.cosy - sinx.siny + cosx.cosy + sinx.siny = 2cosx.cosy
= Right hand side
Since, both the sides of the equation are are equal. It's an identity.
Therefore, Option (B), (C), (D) are the correct options.
Learn more about the trigonometric identities here,
https://brainly.com/question/12526684?referrer=searchResults
Use the equation to complete the table.
d
t=2
- 2
d
23
20
17
14
11
t
Answer:
B taken the test before
Step-by-step explanation:
y = 5x – 2
2x + 9y = 10
Answer:
y= ax+mb
Step-by-step explanation:
50% of 25% of a number x is
A- one eighth of X
B- half of X
C- one fourth of X
D- three fourth of X
Answer:
The word "of" in mathematical terms means multiplication. The word "is" means equal. This would be translated into 50% x 25% x X = or 0.50 x 0.25 x X =. 0.50 times 0.25 = 0.125. Putting 0.125 into a fraction, it would be 125/1000. Simplify this fraction to get 1/8. So, the answer would be A.
