Answer:
The answer is 7x^3 - 8x^2 - 20x + 3
Step-by-step explanation:
Simplify the expression.
Hoped this helped!
When placed near a second charge, a 60-μC charge experiences a force of 0.30 N. What is the electric field strength at the location of the 60-μC charge? What is the strength of the electric field at the location of the test charge?
Answer:
[tex]E=5000N/C[/tex]
Step-by-step explanation:
From the question we are told that
Charge [tex]q= 60 \mu C[/tex]
Force [tex]F_=0.30N[/tex]
Generally the equation for electric field strength is mathematically given as
[tex]E=F/q[/tex]
[tex]E=\frac{0.30}{60*10^-^6}[/tex]
Therefore
[tex]E=5000N/C[/tex]
What is the area of a half circle with a radius of 40 cm?
Answer:
5027 square centimeters (cm2)
Step-by-step explanation:
Answer:
800π or 2513.3
Step-by-step explanation:
A = πr²/2
A = 1600π/2 or 800π
16% of 23
please helpppppp
1% of the same number is 4.6
Answer:
3.68
Step-by-step explanation:
Make 16% a decimal then multiply by 23
.16*23=3.68
What would you multiply by to decrease a number by 22.5%
Step-by-step explanation:
do 100-22.5 and that should be the number
If x = 2 and y = 5 , evaluate the following expression:
100 − 3 ( 3 y − 4 x )
Answer:
-59
Step-by-step explanation:
Answer:
e
Step-by-step explanation:
Can someone explain this
Answer:
Jatziry 10%, Kwa 11.1% , Miguel 12.5% , Gina 13%
convert all into percentages
HELP MEE! WILL MARK BRAINLIEST, NEED ALL 4 ANSWERS
Answer:
1. 7 , 2. 4, 3. 29, 4. 71
Step-by-step explanation:
I need help pls...ty :)
Answer:
132
Step-by-step explanation:
because area is when you multiply 2 numbers and if you multiply 12 and 11 you will get 132 u welcome
On Monday the price for bottled water was six bottles for $17.88. on Saturday the price was three bottles for $9.33. which day had the higher unit price?
Answer:
saturday
Step-by-step explanation:
monday:
17.88 (price) divided by 6 (number of bottles) is equal to 2.98 (unit price per bottle)
saturday:
9.33 (price) divided by 3 (number of bottles) is equal to 3.11 (unit price per bottle)
I really need help. Pleeease. I'm begging you!
the answer is totally numbers
Pls help!!!!!!!!!!!!!!!!
Answer:
.27 or 27/100
Step-by-step explanation:
each tenth is equal to 10 one hundredths
The figure below shows a right triangle:
What is r ÷ p equal to? (6 points)
Group of answer choices
A. sin y°
B. sin x°
C. tan y°
D. tan x°
Answer:
tan y°
Step-by-step explanation:
by using the Sine Rule (See attached), we can form the equation:
[tex]\frac{r}{sin (y)} = \frac{p}{sin (x)}[/tex]
rearranging this, we get:
[tex]\frac{r}{p} =\frac{sin(y)}{sin(x)}[/tex] ---------------------eq 1
Recall that all internal angles of a triangle must sum to 180°. we observe that we have a right triangle where one of the angles is 90°. It then follows that the sum of the other two angles must sum to 90°
i.e x + y = 90°
with a little rearranging, we get
x = (90° - y)
Substituting this into eq 1 above, we get:
[tex]\frac{r}{p} =\frac{sin(y)}{sin(90- y)}[/tex] ---------eq 2
recall that from the trigonometric co-function identities,
sin (90°- y) = cos y
substituting this into eq 2 gives :
[tex]\frac{r}{p} =\frac{sin(y)}{cos(y)} = tan(y)[/tex] (answer)
A paperweight in the shape of a rectangular prism is shown: A right rectangular prism is shown with length 10 cm, width 4 cm, and height 4 cm. If a cross section of the paperweight is cut diagonal to the base, which shape describes the cross section?
Answer:
Square
Step-by-step explanation:
CHECK THE ATTACHMENT FOR THE FIQURE OF THE QUESTION
✓We were given the dimension of the rectangular prism as 10cm × 4cm × 4cm,
✓The cross section of the paperweight can be cut into half to it's base. Then the new dimension will be 4cm × 4cm which is a quadrilateral.
✓ Then width= 4cm, and height=4 cm are of the same values, hence the shape it forms is a SQUARE. and also the their angles is 90° each.
Please help me with this question!! Thank you! ❤✨
Answer:
2 and 1/2
Step-by-step explanation:
(the first one)
What is the area of triangle ABD?
Answer:
12 because u use the other shapes to reference your measurements.
Mary and Tom were buying a present for their mother for Mother's Day. Mary spent $12 and Tom spent $28. If they want to share the cost equally, how much money does Mary owe Tom?
Answer:
mary owes tom $8
Step-by-step explanation:
Find the length of the third side. If necessary, round to the nearest tenth.
Answer:
7.8
Step-by-step explanation:
1. 5^2 +6^2=x^2
2. 25+36 = x^2
3. 61=x^2
4. [tex]\sqrt{61}[/tex] = 7.8
-
1) The product of two positive numbers is
equal to 2 and their difference is equal to 7/2.
Find the two numbers
Answer:
I hope my answer will helps you.
PLEASE ANSWER I’ll give brainliest!!
6.7.30
What is the perimeter of the parallelogram WXYZ?
Answer:
392?
Step-by-step explanation:
to find perimeter you add each side I think, so...
50 + 50 + 50 + 50 + 96 + 96 = 392
No clue if I did this properly but based on my math I did it right not sure the formula you are using/ should be using to figure this out.
Factor the quadratic 27x2-3
(x2 is X squared) please help.
Answer:
3(3x-1)(3x+1)
Step-by-step explanation:
27x²-3
You can factor out a 3
3(9x²-1)
Now we can use the difference of perfect squares formula
x²-y²=(x+y)(x-y) which means that 9x²-1=
(3x-1)(3x+1)
put it all together and get
3(3x-1)(3x+1)
The normal price of a bicycle is £120
In a sale, there is 1/5 off the normal price of the bicycle.
Work out the price of the bicycle sale?
Answer:
76
Step-by-step explanation:
100% = 120
1/5 of 100% = 20%
20% = 120÷100×20
= 24
100-24= 76
shopkeeper sells tins of the same dog food in packs of four or packs of six.
Packs of four tins cost £1. Packs of six tins cost £1.20
Which is the best value for money?
You must show your working.
Answer:
Pack of 6
Step-by-step explanation:
Pack of 4 = £1
Packs of 6 = £1.20
Price per unit of each pack:
Pack of 4 ;
Unit price : cost / units
Unit price = £1 / 4 = £0.25
Pack of 6 ;
Unit price : cost / units
Unit price = £1.20 / 6 = £0.20
Pack of 6 is the best value for money as it has a lower unit price
do i add 40 + 45? Or multiply
Answer:
you add 40+45
Step-by-step explanation:
40+45=85
then you subtract 180 - 85 = 95
then divide x into 95 that will give you x=95
(Equivalent Expressions) Which expression is equivalent to 3 + 2x + 6y + 6x + 2 – 2y?
Is (2,-1) a solution of 2x-y=5? Explain and solve please and thank you.
Answer:
YES
Step-by-step explanation:
2x-y=5
2(2)-(-1)=5
4-(-1)=5
4+1=5
5=5
Answer:
first replece x and y , 2(2)-(-1)=5
4 +1=5 correct
Step-by-step explanation:
To find 40% of 75, Priya calculates 2/5⋅75. Does her calculation give the correct value for 40% of 75? Explain how you know.*
Answer:
Answer: Yes , priya calculated correctly . The value of 40% of 75 is 30
Step-by-step explanation:
solve the simultaneous Equation
3/x- 4/y= 1/3
Answer:
a simultaneous equation is a set of equations. you need at least another equation.
Answer:
Step-by-step explanation:
Let's solve for x.
3x−4y= 1/ 3
Step 1: Add 4y to both sides.
3x−4y+4y= 1/ 3 +4y
3x=4y+ 1/ 3
Step 2: Divide both sides by 3.
3x/ 3 = 4y+ 1/ 3
3 x= 4/ 3 y+ 1/ 9
Answer:
x= 4/ 3 y+ 1/ 9
Let's solve for y.
3x−4y= 1/ 3
Step 1: Add -3x to both sides.
3x−4y+−3x= 1/ 3 +−3x
−4y=−3x+ 1/ 3
Step 2: Divide both sides by -4.
−4y/ −4 = −3x+ 1/ 3
−4 y= 3/ 4 x+ −1/ 12
Answer:
y= 3/ 4 x+ −1/ 12
What is the answer to 6x5x3=
Answer:
90
Step-by-step explanation:
on multiplication.
Answer:
6x^8 hope this helps
Step-by-step explanation:
Help guys I really need it
Answer:
yes it does
Step-by-step explanation:
Answer:
yes
Step-by-step explanation:
Mangoes are on sale 4 for $3. Mindy buys 14 mangoes.
The sales tax is 12%.
What is the total price Mindy pays for the mangoes?
Answer:
11.76
Step-by-step explanation:
[tex]14 \div 4 = 3.5 \\ 3.5 \times 3 = 10.5 \\ 10.5 \times (1 + 12\%) = 10.5 \times 1.12 = 11.76[/tex]