Answer:
that is 188888888888888888
Use the expression below:
5b + 3c - 20 + 3b - 15c + 4
Part A: Simplify the expression and write it down
Part B: Factor the simplified expression and write it down
Part C:What is the value of the expression when b=2 and c= -3
Answer:
Part A: 8b -12c -16
Part B: 4(2b - 3c -4)
Part C: 36
Step-by-step explanation:
Part A:
5b + 3c - 20 + 3b - 15c + 4
= 8b -12c -16
Part B:
Factorising 8b -12c -16
= 4(2b - 3c -4)
Part C:
= 4[2(2)-3(-3)-4)]
= 4[4+9-4]
= 4[9]
= 36
Triangle EFG is dilated by a scale factor of 5.
Which is an algebraic representation of the dilation?
Douglas bought a $20 game card at a
game center. The go-karts cost $3.50 each
time you race. He wants to have at least
$7.75 left on his card to play arcade games.
Write and solve an inequality to determine
how many times Douglas can race the
go-karts. Then interpret the solution.
Answer:
Douglas can race the go-karts at least 3 times.
Step-by-step explanation:
Given that:
Worth of game card = $20
Cost of go-kart = $3.50 each time
Amount Douglas wants to left = $7.75
Let,
x be the times Douglas can ride go-kart.
20 - 3.50x ≤ 7.75
-3.50x ≤ 7.75 - 20
-3.50x ≤ -12.25
3.50x ≤ 12.25
Dividing both sides by 3.50
[tex]\frac{3.50x}{3.50}\leq \frac{12.25}{3.50}\\x\leq 3.5[/tex]
Hence,
Douglas can race the go-karts at least 3 times.
Douglas should race 3 or fewer times to make sure he has at least $7.75 left on his card.
Given to us
Douglas bought a $20 game card at a game center.
The go-karts cost $3.50 each time you race.
Douglas wants to have at least $7.75 left on his card to play arcade games.
Assumption
Let's assume that Douglas races x number of times on go-kart.
InequalityAs we know the total balance on the card is $20. And the cost of go-karts is $3.50 each time we race. Also, we need to save $7.75 on the card, therefore, Inequality can be written as,
$20 - ($3.5)x ≤ $7.75
What is the number of times Douglas must race?$20 - ($3.5)x ≤ $7.75
[tex]20 - (3.5)x \leq 7.75\\\\-3.5x \leq 7.75-20\\\\-3.5x \leq -12.25\\\\x \leq \dfrac{-12.25}{-3.5}\\\\x \leq 3.5[/tex]
Hence, Douglas should race 3 or fewer times to make sure he has at least $7.75 left on his card.
Learn more about Inequality:
https://brainly.com/question/19491153
What are the complex zeros of y= x2 + 9?
Answer:
±[tex]\sqrt{-9}[/tex] or ±3i
Step-by-step explanation:
x² = -9
x = ±[tex]\sqrt{-9}[/tex] or ±3i
please help I’m literally failing this class D:
If a perfect square has a side length of x+2 and a perimeter of 44cm what is the value of x?
Answer:
The value of x is 9.
Step-by-step explanation:
Given that:
Side length of square = x+2
Perimeter of square = 44 cm
As all sides of a square are equal, therefore,
Perimeter of square = 4s
Putting all the values,
44 = 4(x+2)
44 = 4x+8
44-8 = 4x
36 = 4x
4x = 36
Dividing both sides by 4
[tex]\frac{4x}{4}=\frac{36}{4}\\x=9[/tex]
Hence,
The value of x is 9.
Ms. Smith just started a new job with a starting salary of $34,000. According to her contract, she will receive a 1.2% increase in her salary every year. How much will Ms. Smith earn in 30 years?
Answer:
$48,629
Step-by-step explanation:
The computation of the salary amount that she earned in 30 years
here we applied the future value formula
As we know that
Future value = Present value × (1 + interest rate)^time period
= $34,000 × (1 + 1.2%)^30
= $34,000 × 1.012^30
= $48,629
Use the distributive property to write an expression7(3a+11b)
Helpppp
Answer:
21a+77b
Step-by-step explanation:
7x3=21
7x11=77
Suppose the side length of square A is 6 inches, and the side length of square B is 9 inches. What is the area of square C if the three squares create a right triangle? A 15 in B 54 in? C 108 in? D 117 in
Answer:
D.117 square in
Step-by-step explanation:
We are given that
Side length of square A=6 in
Side length of square B=9 in
We have to find the area of square C if the tree squares create a right triangle.
By using Pythagoras theorem
[tex](hypotenuse)^2=(Base)^2+(Perpendicular\;side)^2[/tex]
Side of square C
[tex](Hypotenuse)^2=6^2+9^2[/tex]
[tex](Hypotenuse)^2=117[/tex]
[tex]Hypotenuse=\sqrt{117}[/tex]
Now,
The area of square C=[tex](side)^2[/tex]
The area of square C=[tex](\sqrt{117})^2=117 in^2[/tex]
Option D is true.
Answer:
sss
Step-by-step explanation:
sss
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PLEASE HELP ME!!!!!!! I’ll give 40 points
Answer:
350
Step-by-step explanation:
7 x 10 to the 7th power is 70000000 and 2x 10 to the 5th power is 200000, if you divide them yo get 350.
4,2,4,6,3,5,2,8,5 which is the median of books read??? I NEED HELP WITH THAT QUESTION
Answer:
4
Step-by-step explanation:
The value in a set which is most close to the middle of a range.
Karen ordered two hot dogs for $1.25 each a serving of onion rings for $2.99 and a drink for $0.98 Karen space with a $10 bill is taxes included in the prices how much teams will Karen receive
Which expression is equivalent to (3^2)^-2
Answer:
Step-by-step explanation:
power raised to power, you multiply the exponents
=3^-4=1/3^4=1/81
Answer:
1/81
Step-by-step explanation:
3^2 = 9
9^-2 = 1/81
negative exponents move it to denominator
trigonometry help- double angle formulae!!!
Answer:
sin(2*36.86989765) and get .96 or 24/25
7/25
Step-by-step explanation:
Start by solving for P
sinP=3/5
take the arcsin or sin^-1 and get
p=36.86989765
Then multiply by 2 and take the sin and get
sin(2*36.86989765) and get .96 or 24/25
Then take cos(2*36.86989765)=.28 or 7/25
Answer:
Steps below
Step-by-step explanation:
sin P = 3/5
cos p = √1 - sin² P = 4/5
sin 2P = 2 * sin P * cos P = 2 * 3/5 * 4/5 = 24/25
cos 2P = cos² P - sin² P = 16/25 - 9/25 = 7/25
Please help it due ASAP
Please show workings
Answer:
FC = 27
QC = 18
Step-by-step explanation:
The centroid divides the median in which it stands into a ratio of 1:2
The longer length being twice of the shorter
So in this case, what we have is that ;
FC = FQ + QC
with QC twice FQ
so QC = 2(9) = 18
while;
FC = 18 + 9 = 27
PLEASE HELP AND FAST PLEASEEEEE will mark brainliest if right
Answer the questions on the picture please
Step-by-step explanation:
no pic available Hun xx try posting again
Carlito bought bottled water and sports drinks to sell at a concession stand. He spent $450 to purchase drinks. Each bottle of water costs $1 and each sports drink costs $2. He bought half as many bottles of water as sports drink. How many bottles of water and how many sports drinks did he buy?
Answer:
Step-by-step explanation
Molly is 11 years old. Kristen is 1 years older than Molly and Jane is 1 years older than
Kristen. How old is Jane?
What is the percent composition of C4H10?
The perimeter of a rectangular field 338 yards. If the length of the field is 95 yards, what is its width
Answer:
it's 124
Step-by-step explanation:
95*2=190
338-190=248
248/2= 124
width=124
Find the number. Round to the nearest tenth if necessary.
What percent of 65 is 13?
Answer:
Step-by-step explanation:
for these type of problems:
65/100=0.65 this represents 1%
13/0.65=20
20% of 65 is 13
5/x+6- 7/3= 2/7x+42 solve for x given the equation, is there are multiple solutions separate them by a comma, what are the excluded values?
Answer:
Step-by-step explanation:
PLEASE HELPPPPPP ILL GIVE BRAINLYLIST AND FIVE STARS!!
I'LL GIVE BRAINLIEST!!!!
2/3 + _/6 = 1/6
what is the missing numerator
options:
3
5
6
9
12 peaches cost 8$. How many peaches can you buy for $2?
Answer: A
Step-by-step explanation: 6 is for $4 therefore 3 is for $2
A record is spinning at the rate of 37 rpm. If a ladybug is sitting 8 cm from the center of the record, find and exact answer for each of the following.
a) What is the angular velocity of the ladybug? (in radians/sec)
b) What is the speed of the ladybug? (in cm/sec) c) After 17 seconds, how far has the ladybug traveled? (in cm)
The angular velocity of the ladybug is the same as the angular velocity of
the record.
Correct responses (approximate values):
a) 3.875 rad/s
b) 31 cm/s
c) 527 cm
Methods used for the calculationsThe rate at which the record is spinning = 37 rpm
Location of the ladybug on the record = 8 cm from the center
a) The angular velocity of the ladybug is given as follows;
1 revolution = 2·π radians
1 minute = 60 seconds
Therefore;
[tex]Angular \ velocity, \ \omega = \dfrac{37 \times 2 \cdot \pi}{60 \, s} \approx \mathbf{ 3.875}[/tex]
The angular velocity of the ladybug, ω ≈ 3.875 rad/secb) Linear speed, v = Radius, r × Angular speed, ω
The radius with the ladybug rotates, r = 8 cm
Angular velocity of the ladybug = ω ≈ 3.875 rad/s
Therefore;
The speed of the ladybug, v = 8 cm × 3.875 rad/s ≈ 31 cm/sc) Distance, d = Speed, v × Time, t
After 17 seconds, we have;
The distance travelled by the ladybug, d = 31 cm/s × 17 s = 527 cmLearn more about angular velocity here:
https://brainly.com/question/14370151
(2+3i)+2i(2+3i) simplified
(2+3i)+2i(2+3i) = 1(2+3i) + 2i(2+3i) = (1+2i)(2+3i)
Find the area of the circle. Round to the nearest tenth. Use 3.14 for π. 14 m circle
Answer:
615.44 m²
Step-by-step explanation:
3.14(14)²= 615.44 m²
Answer:
153.9 m²
Step-by-step explanation:
A = πr2 Use the formula.
A = π(7)2 Substitute. Use 7 for r.
A ≈ 3.14 × 72 Substitute. Use 3.14 for π.
A ≈ 3.14 × 49 Evaluate the power.
A ≈ 153.9 Multiply.
The area of the circle is about 153.9 m².
Write and solve a proportion to determine the number of pennies, x, in a stack that is 100 mm high. Use numbers, words, or both to explain your method.
Answer:
100/w = x
The 100 mm is made up of pennies that have the same width. If you divide the 100 mm by how wide each penny is, you will get how many pennies there are in the stack.
Step-by-step explanation:
