Answer:
6
Step-by-step explanation:
3х - 5 = 13
+5 +5
3x=18
/3 /3
x=6
Here is an expression: 4•3^x
a. Evaluate the expression when x = 2
b. Evaluate the expression when x = 4.
Answer:
First one is 36 and second one is 324!!!
What is the solution to the equation below? Round your answer two decimal places. 3^x = 9.2
3x = 9.2 ⇒ x = 2.02000606
Answer:
X=2.02
Step-by-step explanation:
Which of the following represents a polynomial expression? Select one: A. 2x + 3log(x) + 5 B. 10x−−√ − 2 C. (x + 1)(x - 1) D. 4x + 2(3x + 3)
Answer:
none!
Step-by-step explanation:
Answer:
The answer is C
Step-by-step explanation:
Explanation: I searched up "what don't polynomials have"
Find the area of the figure
Answer:
Answer is 50 m squared
Step-by-step explanation:
Answer: 32.5cm
Step-by-step explanation:
i hope this helps
what is the value of x?
12
15
20
24
Answer:
15
Step-by-step explanation:
9 + 15m
factorisation of algebraic expression that contain common factor
Answer:3(3+5m)
Step-by-step explanation:
33°
114"
33
A) right scalene
B) acute scalene
C) obtuse isosceles
D) equilateral
Answer:
b acute I think so ok but that was a weird quistoin
The triangle below are similar find the lengths of the missing side.
Answer:
The answer is b =9
Step-by-step explanation:
20:12=15:b
5:3=15:b
cross multiply
5×b=3×15
5b=45
divide both sides by 5
b=45÷5
b=9
a
The expression ax²+bx+c is divisible by x-1, has a
remainder of 2 when divided by x+1 and has a remainder of 8 and when divided by x-2 find the values of a, b, and c and
factorise completely.
Answer:
(x - 1)(3x + 2)
Step-by-step explanation:
By the Remainder theorem
Given expression is divisible by x - 1 then f(1) = 0
when divided by (x + 1) then f(- 1) = 2
when divided by x - 2 then f(2) = 8
Substitute x = 1, x = - 1, x = 2 into the expression , that is
a + b + c = 0 → (1)
a - b + c = 2 → (2)
4a + 2b + c = 8 → (3)
Subtract (1) from (2) to eliminate a and c
- 2b = 2 ( divide both sides by - 2 )
b = - 1
Subtract (1) from (3) to eliminate c
3a + b = 8 ← substitute b = - 1
3a - 1 = 8 ( add 1 to both sides )
3a = 9 ( divide both sides by 3 )
a = 3
Substitute a = 3, b = - 1 into (1) and evaluate for c
3 - 1 + c = 0
2 + c = 0 ( subtract 2 from both sides )
c = - 2
Then a = 3, b = - 1, c = - 2
Thus
ax² + bx + c
= 3x² - x - 2
= (x - 1)(3x + 2) ← in factored form
Please, somebody, solve this quick and reply with step by step explanation AND provide all steps of working!
If these will be there then I will mark them as BRAINLIEST!
Answer:
For a trapezium of height H, parallel side 1 X, and parallel side 2 Y, the area is:
A = (1/2)*H*(X + Y)
with this we can complete the table.
a)
Here we know:
X = 7cm
Y = 11cm
H = 6cm
Then: A = (1/2)*6cm*(7cm + 11cm) = 54 cm^2
b)
Here we know:
X = 8 m
Y = 10 m
A = 126 m^2
Then:
126 m^2 = 0.5*H*(8m + 10m)
126 m^2 = H*9m
126 m^2/9m = H = 14m
Then the height of this trapezoid is 14m
c)
Here we know:
X = 5mm
H = 8mm
A = 72 mm^2
Then:
72 mm^2 = 0.5*8mm*(5mm + Y)
72 mm^2 = 4mm*(5mm + Y)
72mm^2/4mm = 5mm + Y
18 mm = 5mm + Y
18mm - 5mm = Y
13 mm = Y
Then the parallel side 2 is 13 mm long.
Select the word to make the statement true.
Similar polygons are ____ the same size.
A. always
B. sometimes
C. never
Answer:
B.
Hope that helps!
Step-by-step explanation:
Answer:
B. Sometimes
Step-by-step explanation:
Hope this helps!
I have to find the value of x
k so I tried, and honestly I'm not sure what I'm doing wrong but I'm not sure how to solve it. If anyone could help that would be lovely :') thank youu
Answer:
x = 25
Step-by-step explanation:
A quadrilateral is inscribed in a circle, so it is a cyclic Quadrilateral.
Opposite angles of a cyclic quadrilateral are supplementary.
Therefore,
3x + 21y = 180°.....(1)
2x + 26y = 180°.....(2)
From equations (1) & (2)
3x + 21 y = 2x + 26y
3x - 2y = 26y - 21y
x = 5y
y = 1/5 x
Plug y = 1/5 x in equation (1)
3x + 21*1/5x = 180
15x + 21x = 180*5
(Multiplying both sides by 5)
36x = 900
x = 900/36
x = 25
URGENT!!!!
Find Perimeter of the square with the side 15 in.
Use formula P=4s
100 in
60 in
225 in
30 in
Answer:
It's 60 in
Step-by-step explanation:
P = 4s
P = 4 x 15
P = 60 in
A shopkeeper buys a stove from a manufacturer for $100.The selling price if he makes a profit of 15%
Answer:Selling Price = $115
Step-by-step explanation:
Selling price = Cost price + Profit
Cost price = $100
Profit = 15% = 15% x 100 = $15
Selling Price = $100 + $15= $115
OR
Selling Price = Cost price + Profit
Selling Price =$100 + (15% of $100)
Selling Price = $100+ $15
= $115.
What's the answer to this questions?
What is the square root of ten rounded to the nearest 100th
Answer:
3.162
Step-by-step explanation:
√10 = 3.162
Answer:
Step-by-step explanation:
I hope I can use a calculator and not use logs or a type of long division!
√10 = 3.16227
The hundredth place is the 6. The next place is a 2 which does not have any effect on the 6.
Answer: 3.16
Help me Please I will give brainliest! (please dont answer if you dont know)
Answer:
16.5 feet or
about 17 feet long.
Step-by-step explanation:
A = bh
Squares have equal side lengths all around so with there being 4 sides, you will take 66 and divide by 4.
66 ÷ 4 = 16.5
So it is about 17 feet
yall the ones with boxes help
Answer:
16
Step-by-step explanation:
If the store sells 2 printers for every 5 computers
40/5 is 8. this means there are 8 sets of 5 computers
8x2 is 16 since for every 5computers, 2 printers are sold
$4000 is compounded annually at a rate of 7% for 7 years.
Answer:
hey i think its $16,819 i'm so sorry if i get it wrong
Step-by-step explanation:
PLEASE HELP ILL GIVE YOU BRAINLIST !!! I DONT UNDERSTAND THIS
Answer:c=2 √1129 or c=−2 √1129
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
c^2=4516
Step 2: Take square root.
c=±√4516
c=2√1129 or c=−2√1129
if f(x) =2x/X-5
Find f^-1(x).
Step-by-step explanation:
Let f(x)=y
y=2x/X-5
y(x-5)=2x
xy-5y=2x
x(y-2)=5y
x=5y/y-2
Apply x=5y/y-2, on f(x)
f(5y/y-2)=2(5y/y-2)/[(5y/y-2)-5]
=(10y/y-2)/[(5y-5y+10)/y-2]
=10y/10
=y
So f^-1(x)=5y/y-2
Analyze the diagram below and complete the instructions that follow.
Find the value of x.
Answer: I believe the answer is C.
Step-by-step explanation: In special case isosceles right triangles the hypotenuse is always equal to a · √2. With a=5√2 we can set up the equation 5√2 · √2 = 10.
how to round 8.798 to the nearest cent
Answer:
8.80
Step-by-step explanation:
Answer:
8.80
Step-by-step explanation:
The hundredths place is occupied by the 9.
First, drop the last 8.
8.79
Since the digit to the right of the dropped 9 is an 8, you round up.
8.79 becomes 8.80
Answer: 8.80
A store pays $24 for a jewelry box and marks the price up by 20%. What is the amount of
the mark-up?
Answer:
$4.8
Step-by-step explanation:
$24×20/100=$4.8
i don’t get scientific notation. can someone help me on this?
Isabel has 6.75 bags of coffee. A full bag weighs 5.2 pounds. How many pounds of coffee does Isabel have? *
11.77
11.95
31.5
35.1
which one ^
Answer:
35.1
Step-by-step explanation:
6.75x5.2=35.1
42
40
x
Find the unknown side length, x. Write your answer in simplest radical form.
A. 2.41
B. 429
C. 48
D. 58
Answer:
Your answer is D. 58
Step-by-step explanation:
x= [tex]\sqrt{(42^2+40^2)}[/tex]
Four cards labeled A, B, C, and D are randomly placed in four boxes labeled A, B, C, and D. Each box receives exactly one card.
In how many ways can the cards be placed in the boxes?
Answer: 16 different ways
Step-by-step explanation:
Which property of equality is used to solve the equation 5n = 50?
What property of equality would you use to solve the equation n/4 = 16.
Answer:
To solve 5n = 50, I would use the property of division.
To solve n/4 = 16, I would use the property of multiplication.
Hope this helped! Have a nice day! Plz mark as brainliest!!! :D
-XxDeathshotxX
3 1/3 - x for x = 5/6
Answer:
2 1/2
Step-by-step explanation:
3 1/3 = 10/3 = 20/6
20/6-5/6=15/6
15/6=5/2=2 1/2