How do you Multiply Radicals?????
Answer:
1. [tex]4\sqrt{5}[/tex]
2. [tex]10\sqrt{10}[/tex]
Step-by-step explanation:
When you multiply radicals, you do the following
[tex]a\sqrt{b}\cdot c\sqrt{d}\\\\=ac\sqrt{bd}[/tex]
with that in mind
1.
[tex]\sqrt{16}\cdot \sqrt{5}[/tex]
here we don't need to multiply 16 times 5, because 16 = 4^2 and take the square root of it, gives you 4
[tex]=4\sqrt{5}[/tex]
2.
[tex]\sqrt{20}\cdot 5\sqrt{2}\\\\\longrightarrow 20 = 2^2\cdot 5\\\\=2\sqrt{5}\cdot5\sqrt{2}\\\\=(2\cdot5)\sqrt{5\cdot2}\\\\=10\sqrt{10}[/tex]
pls help due asap
Thanks in advance
Answer:
Angle ABF is 120°.
Step-by-step explanation:
Vertical angles are used to get the measure of angle ABG (3x) and FBE (2x) and all of those added together are 180. Then you use PEMDAS to get x. Then you find ABF by multiplying 3 by 30 (what you get when you use PEMDAS to find x) then you add 30 to that and you get 120.
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3 1/2 divided by 4
Answer:
0.875
Step-by-step explanation: hoped i helped ^-^
what is the y intercept of the line given by the equation below
y=-10x+14
Answer:
(0, 14) is the y-intercept
Answer:
14 is the y-intercept
Step-by-step explanation:
10 would be the slope so that leaves 14 which is the y intercept
Piper opened a savings account with $1400 that pays no interest. She deposits an
additional $50 each week thereafter. How much money would Piper have in the
account 47 weeks after opening the account?
Answer: Piper will have $3750
Step-by-step explanation:
In this situation we will represent the total amount she have in the bank by y and the number of weeks by x
The whole situation can be represented by the the equation
y = 1400 + 50x where y is the total amount , 1400 is the initial amount Piper deposited , 50 is of course the amount Piper will deposit each week , and x is the number of weeks.
Now since they are looking for the amount Piper will have in his account, you have to input 47 for x and solve for y.
y = 1400 + 50(47)
y = 1400 + 2350
y = 3750
How many solutions exist for the given equation 12x + 1 = 3(4x + 1) -2
Answer:
All real numbers are solutions (hope that helps)
Step-by-step explanation:
12x+1=3(4x+1)−2
Step 1: Simplify both sides of the equation.
12x+1=3(4x+1)−2
12x+1=(3)(4x)+(3)(1)+−2(Distribute)
12x+1=12x+3+−2
12x+1=(12x)+(3+−2)(Combine Like Terms)
12x+1=12x+1
12x+1=12x+1
Step 2: Subtract 12x from both sides.
12x+1−12x=12x+1−12x
1=1
Step 3: Subtract 1 from both sides.
1−1=1−1
0=0
What is the volume of the tent?
After paying $8.07 for a pizza, Jessica has $9.72. How much money did she have before buying the pizza?
Answer:
$17.79
Step-by-step explanation:
9.72+8.07=17.79
Answer:
$17.34
Step-by-step explanation:
Just add
$8.07+$9.72
what is 10% of 50 ??
Answer:
5
Step-by-step explanation:
10% = 0.1
0.1*50 = 5
Answer:
5
Step-by-step explanation:
10 percent *50 =
( 10:100)*50 =
( 10*50):100 =
500:100 = 5
Now we have: 10 percent of 50 = 5
Volume?? Please help giving out brainliest and 12 points for answering
Answer:
1395
Step-by-step explanation:
Since the Hight of the rectangular prism is 7 we can subtract that from 17 to get 10 for the Hight of the pyramid
volume of rectangular prism is 15·9·7=945
volume of pyramid is (15·9·10)/3=450
add
450+945=1395
Kim’s family invested $3000 in a certificate of deposit (CD) for her when she was born. the interest rate is 8% and is compounded quarterly. what is the value of the CD in 5 years? what is the value of the CD if it is compounded annually for 15 years?
Answer:Kim’s family invested $3000
Step-by-step explanation:
The value of the CD will be an amount of $7487.01 if it is compounded annually for 15 years.
What is Compound interest?Compound interest is defined as interest paid on the original principal and the interest earned on the interest of the principal.
To find the value of the CD in 5 years, you need to calculate the compound interest earned over 5 years.
The interest rate is 8% per year, so the interest rate per quarter is 8% / 4 = 2%.
The value of the CD at the end of each quarter can be calculated using the formula:
CD value at end of quarter = CD value x (1 + interest rate per quarter)
For example, at the end of the first quarter, the CD value would be:
CD value at end of first quarter = $3000 x (1 + 0.02) = $3060
You can repeat this process for each quarter to find the CD value at the end of 5 years.
After 5 years, there will have been 20 quarters (5 years x 4 quarters per year), so the CD value at the end of 5 years will be:
CD value at end of 5 years = $3000 x (1 + 0.02)²⁰ = $4393.84
To find the value of the CD if it is compounded annually for 15 years, you can use the same formula, but use the annual interest rate of 8% and the number of years of 15. The CD value at the end of 15 years will be:
CD value at end of 15 years = $3000 x (1 + 0.08)¹⁵ = $7487.01
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What is the slope of the line: y = 2x - 1?
Answer:
m=2
Step-by-step explanation:
Please help me. You will be marked brainliest.
Answer:
What do you need help with?
Step-by-step explanation:
Which of the following shows 2x3y − 3x2 + 7y2x − 12y written in standard form?
a 2x3y + 7y2x − 3x2 − 12y
b −12y + 7y2x − 3x2 + 2x3y
c 7y2x − 12y + 2x3y − 3x2
d −12y − 3x2 + 7y2x + 2x3y
Answer:
a) 2x³y + 7y²x − 3x² − 12y is the right answer.Step-by-step explanation:
Which of the following shows 2x³y − 3x² + 7y²x − 12y written in standard form?
a) 2x³y + 7y²x − 3x² − 12y✓b) −12y + 7y²x − 3x² + 2x³y
c) 7y²x − 12y + 2x³y − 3x²
d) −12y − 3x² + 7y²x + 2x³y
Answer:
2x^3 y + 7y^2 x − 3x^2 − 12y
Step-by-step explanation:
(Just took test)
In order for it to be in standard form in needs to be in the proper order. So just rearrange the numbers to the correct spots to get your answer.
The model represents an equation. What value of x makes the equation true?
Answer:
x=2,25=2 1/4
Step-by-step explanation:
-3x+10=5x-8
10+8=8x
x=2,25=2 1/4
The perimeter of the triangle below is 8x - 6.
Q
X + 1
P.
R
3x - 1
Which expression rrepresents the length of QR ?
helpppp
Answer:
QR = 4x - 6
Step-by-step explanation:
A triangle is a polygon that has three sides and three angles. There are different types of triangles such as equilateral triangle, isosceles triangle, scalene triangle, right angled triangle.
The perimeter of a triangle is a measure of the length of the sides. It is the sum of all the length of the three sides of the triangle.
From the question:
Perimeter of triangle PQR = PQ + PR + QR
But PR = 3x - 1, PQ = x + 1, Perimeter of PQR = 8x - 6.
Therefore substituting gives:
8x - 6 = (x + 1) + (3x - 1) + QR
8x - 6 = (x + 3x + 1 - 1) + QR
8x - 6 = 4x + QR
QR = (8x - 6) - 4x
QR = 4x - 6
Mariana wears her winter coat when the temperature is colder than -4 degrees Celsius
Answer:
It is very cool that Mariana wears her winter coat when the temperature is colder than -4 degrees Celsius
that means when it is 10 degrees Celsius, she won't wear her winter coat
which of the graphs shows the solution to the inequality?
p < -2
Answer:
Graph C
Step-by-step explanation:
Since p is less than negative 2, it would be going to the left.
The dot also is hollow because -2 is not included.
A bakery is filling an order for 180 cupcakes. Jeff has baked and
decorated 75% of the cupcakes. How many cupcakes has been baked
and decorated?
Answer:
135 cupcakes
Step-by-step explanation:
Somebody help plz I need some help
Answer:
[C] 44°
Explanation:
That Is A Right Angle, So x° + 46° Needs To Equal 90°Equation: x + 46 = 90
Subtract 46 From Both Sides
x + 46 - 46 = 90 - 46
x = 44
B = 44°a case of fruit weighs 53 kilogram and another weighs 47 kilograms how much weight must be removed from the first case and placed in the second is that they both equal
a . 2 kilograms
b . 4 kilograms
c . 6 kilograms
d . 8 kilograms
There are 3 kilograms weight must be removed from the first case and placed in the second is that they both equal.
What is mean by Subtraction?
Subtraction in mathematics means that is taking something away from a group or number of objects. When you subtract, what is left in the group becomes less.
Given that;
Fruit weight = 53 kilograms
And, Another weight = 47 kilograms
Now,
Let number of kilograms weights to remove and add = x
So, We can formulate;
⇒ 53 - x = 47 + x
Solve for x as;
⇒ 53 - 47 = x + x
⇒ 6 = 2x
⇒ 2x = 6
⇒ x = 3
Thus, There are 3 kilograms weight must be removed from the first case and placed in the second is that they both equal.
Learn more about the subtraction visit:
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what is the rate unit for 1700 meters in 40 minutes
please help
Answer:
42.5m/s
Step-by-step explanation:
Divide by 40
20% of a number is 12.
what is the whole number?
Answer:
60 that is the answer
Step-by-step explanation:
Mrs. Wright makes cookies for the school bake sale. She uses the equation y = 0.50x to determine the cost, y, for x cookies. Which best represents the constant rate at which cookies are sold at the bake sale? The Answer choices are......
A.50 cookies per dollar
B. 5 cookies per dollar
C.$0.50 per cookie
D.$2 per cookie
Answer:
Option C : $0.50 per cookie is the right answer.
Step-by-step explanation:
Given that:
Equation used by Mrs. Wright is
y = 0.50x
Here,
y = cost of cookies
x = number of cookies
Thus,
Cost = Price per cookie * Number of cookies
On comparing
Cost per cookie = $0.50
Hence,
Option C : $0.50 per cookie is the right answer.
what is the sum of -3x + 9x
Answer: I believe the answer is 6x.
Answer:
6x
Step-by-step explanation:
the -3x cancels out 3 from the 9x making it 6x :)
Simon makes a model of a boat, using a scale of 1 : 30
If the model has a height of 40 cm, find the height of the real boat.
Give your answer in metres.
Answer: 12 metres
Step-by-step explanation:
The scale factor used for the model is 1 : 30.
This means that for any 1cm on the model, the real boat would be 30 cm.
If the height is 40 cm on the model, the real boat will be 30 times that:
= 40 * 30
= 1,200 cm
A metre is equivalent to 100cm.
1,200 cm would therefore be:
= 1,200/100
= 12 metres
A taxi charges a flat fee of $3.00, plus an additional $1.25 per mile. Antonio can spend no more than $18. Choose the inequality that represents the number of miles he can ride, an describes the solution set.
Answer: 1.25m + 3 ≤ 18; Antonio can ride 12 or fewer miles
Step-by-step explanation: so you can break down the answer choices and only have a and b left because no more than means this sign: ≤
and 1.25 is the cost for each mile so your multiplying m and 1.25 and then you add that with 3.
what is 8u+17=17 what is u = to
Answer:
[tex]8u+ 17 = 17 \\ 8u = 17 - 17 \\ 8u = 0\\ u = \frac{0}{8} \\ \boxed{u = 0}[/tex]
u=0 is the right answer.The dimensions of a rectangle are given in terms of S as shown below or above.
Q. Which expression represents the perimeter of the rectangle? Mark all that apply.
Answer:
A and D
Step-by-step explanation:
It should be Sx2 + 2(S+ 1/2)
Which is equal to 4s+1
and 2(2s + 1/2) is equal to 4s+1 as well
PLS HELP ME ASAP I DONT HAVE TIME. IT ALSO DETECTS IF ITs RIGHT OR WRONG.
Answer:
33cm^2
Step-by-step explanation:
Add the areas of the individual shapes so one rectangle and a square.
4*2 + 5*5 > 8 + 25 = 33
Answer:
31 cm²
Step-by-step explanation:
The area of the large figure is the sum of the areas of the smaller rectangles, the 4 cm x 2 cm one and the 5 cm x 5 cm one.
Area of the 4 x 2: 4 x 2 = 8 cm²
Area of the 5 x 5: 5 x 5 = 25 cm²
Sum of the two: 8 cm² + 25 cm² = 31 cm²