Which expression is equivalent to 5(4k+7)?
A. 5(7+4k)
B.7(5k+4)
C.35k+20
D.4k+35
Answer:
A. 5(7+4k) = 35+ 20k
This is the same as 5(4k+7)
20k+35 is equal to 35+20k
Solve for x, round to the nearest tenth of a degree (timed help me PLEASE!!!)
Answer:
yo
o.1 like it please o.1
The value of x is 63.435, which is 60 round to the nearest tenth of a degree.
Given:
Height = 40 feet.
Distance =20 feet.
To find the value of x.
sinθ = hypotenuse/opposite.
cosθ = hypotenuse/adjacent.
tan θ = opposite/adjacent.
tan θ = 40/20 = 2
θ = tan ⁻(2) = 63.435
Therefore, 60 for x round to the nearest tenth of a degree.
Learn more about Application of trigonometry here:
https://brainly.com/question/11687813
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Find the area of the shaded sector. Round to the nearest hundredths place.
SR= 26 m
Answer: 315.45 m^2
Step-by-step explanation:
We know that the area of a circle is written as:
A = pi*R^2
Where:
pi = 3.14
R = radius of the circle.
In this case, we know that SR (the diameter) is equal to 26m
And the radius is half of the diameter, then:
R = 26m/2 = 13m
Now, in the image we can see that we have half of the circle shaded, the area of that part will be equal to half the area of a complete circle, then the area of that part is:
A = (1/2)*3.14*(13m)^2 = 265.33 m^2
We also can see that we have a small arc shaded.
The area of a given arc of an angle θ, is given by:
A = (pi*R^2)*(θ/360°)
Now we want to find the angle of this arc, that is the angle:
∠PQ
We know that:
∠SR = 180° (this is a straight line)
∠RQ = 73°
and i assume that:
∠PS = 73°
if we look at the image, we can see that we must have:
∠QR + ∠PQ + ∠SP = ∠SR
73° + ∠PQ + 73° = 180°
∠PQ = 180° - 2*73° = 34°
Then the area of the small arc is:
A' = (3.14*(13m)^2)*(34°/360°) = 50.12 m^2
The total shaded area is equal to the sum of the two areas we calculated, this is:
Total area = A + A' = 265.33 m^2 + 50.12 m^2 = 315.45 m^2
please any one knows the answer I only have 2 minutes left
What five-letter word becomes shorter when you add two letters to it?
Answer:
short .
short becomes shorter when you add er .
Step-by-step explanation:
Answer:
shorter
Step-by-step explanation:
short
shorter
12d^4/3d^2 shdhshbdbsnsns
Answer:
zip p0quo6or0r7ut t if
Step-by-step explanation:
ye at rdlrj8hj0
Answer:
[tex]4d^{2}[/tex]
Step-by-step explanation:
Divide the numbers like usual:
12/3 = 4
Note that when you divide powers with common base, you are actually subtracting the power:
[tex]\frac{d^{4} }{d^{2} } = d^{4 - 2} = d^{2}[/tex]
Combine the two for your answer:
[tex]4d^{2}[/tex] is your answer.
~
Is -4 rational or irrational
It’s a Rational number
if you ate 56 hotdogs in 7 minutes how much would you eat per minute
Answer:
8 hot dogs
Step-by-step explanation:
[tex]8*7=56\\[/tex]
Answer:
You could Eat 8 in a minute.
Step-by-step explanation:
divide 56 by 7.
Feels impossible to be honest. I have no idea.
Find the values of a and b such that x^2 + 2x - 7 = (x + a)^2 + b URGENT! *silly answers will be reported
Answer: b=−a2−2ax+2x−7
When you said, “Find the values of a and b” I can do B and that all...
Step-by-step explanation: hope this help
I am thirsty but also thrifty so I want a drink that will quench my thirst and cost the least. Which of the following will quench my thirst and cost the least? Write the unit rate for each.
-A 12oz Pepsi $1.08
-A 20oz coke for $1.20
-A 24oz mountain dew for $1.68
In the function y = x, if y = -8, what is x equal to?
Answer:
x = -8
Step-by-step explanation:
[tex]y =x[/tex]
If y = -8 — Substitute y = -8 in the equation.
[tex] - 8 = x[/tex]
Therefore, our x is -8 when y = -8
Answer:
x=-8
Step-by-step explanation:
Let's solve your system by substitution.
y=x; y=−8
Rewrite equations:
y=−8; y=x
Step: Solve y=−8 for y:
y=−8
Step: Substitute −8 for y in y=x:
y=x
−8=x
−8+−x=x+−x(Add -x to both sides)
−x−8=0
−x−8+8=0+8(Add 8 to both sides)
−x=8
-x/-1 = 8/-1
x=-8
Here is the graph. Anyways, hope this helped! If you can, can you give me brainliest?! Have a great day!!
PLEASE HELP ASAP I WILL MARK BRAINLIEST IF THERE ARE MULTIPLE ANSWERS!!!!!
Please graph the solution of x+8≥9 and take a picture
Answer:
Attached
Step-by-step explanation:
x+8≥9
x ≥ 9-8
x ≥ 1
picture one is two dimension and picture 2 is number line
The correct answer is y < 18. Let's pretend a student forgot to flip the symbol and they mistakenly believe the solution set is y > 18. They check 21 since 21 is greater than 18, and they think that y has to be greater than 18. When they do their check, what will the final line of the check say? Is this a true statement?
Answer:
It is wrong
Step-by-step explanation:
y < 18
This is read as y is less than 18. If the students forgot to flip the symbol and mistakenly believe that y > 18.
y > 18
This is read as y is greater than 18.
There is a difference between the numbers greater or less than 18 .
y must have numbers less than 18 and 21 is greater than 18.
Therefore it is wrong.
But to make it true we can multiply minus with the inequality y > 18
-y > -18
This reverses the inequality sign and it becomes
y< 18
The solution which is required.
Write the equation of the line in point slope form.
Y+4=-3(x+2)
A building casts a shadow 100 m long. At the same time, a nearby pole 4 m high casts a shadow 8 m long. What is the height of the building? Round your answer to the nearest tenth, if necessary.
Answer:
50m
Step-by-step explanation:
Calculation for the height of the building
First step:
Let x represent the building height
Second step:
100m/8m = x/4
Third step is to Cross multiply:
100m(4) = 8x
400m= 8x
x=400m/8
x=50m
Therefore the height of the building will be 50m
is o.16 in root a rational or irrational
Answer:
[tex]\sqrt{0.16}[/tex] is a rational number
Step-by-step explanation:
[tex]\sqrt{0.16}=\sqrt{\frac{16}{100}}=\frac{4}{10}=0.4[/tex]
It is a perfect square. so, it is a rational number
40 POINTS! IF YOU ANSWER CORRECTLY AND BRAINLIEST
The ratio of cows to chickens at Old McDonald’s Farm is 2:7. Select
all the farms that have a greater ratio of cows to chickens than Old
McDonald’s Farm.
1. ed’s Farm: 3 cows for
every 5 chickens
2. Pasture Farm: 2 cows for
every 9 chickens
3.Cluck & Moo Farm: 1 cow
for every 5 chickens
4. C & C Farm: 3 cows for
every 8 chickens
5. Family Farm: 1 cow for
every 3 chickens
btw: I added an extra 50 cause i feel nice today :>
Answer:
2. Pasture Farm : 2 cows for every 9 chickens & 4. C & C Farm: 3 cows for
every 8 chickens.
* Please let me know if this helped you or tell me if one of my answers are wrong .
When the manager of Fantastic Furniture buys a sofa from a manufacturer, she uses a markup of 45% of her cost to set the selling price of the sofa. What will be the selling price if the manager of Fantastic Furniture buys a sofa for $400? Show your work explain your reasoning.
Answer:
Selling price= $580
Step-by-step explanation:
eGiving the following information:
Buying price= $400
Mark-up percentage= 45% = 0.45
The manager applies a mark-up equivalent to 45% of the buying price. First, we need to determine how much is 45% of the cost.
Mark-up= buying price* Mark-up percentage
Mark-up= 400*0.45
Mark-up= $180
Now, the selling price:
Selling price= 400 + 180
Selling price= $580
What is the domain of the function graphed?
A){x: x≤4}
B) {x: x≥2}
C) {x: x≤2}
D) all real numbers
Answer:
D) all real numbers
Step-by-step explanation:
A middle school took all of its 6th grade students on a field trip to see a play. The students filled 816 seats, which was 48% of the total number of seats in the theater. How many total seats were in the theater?
Answer:
4900
Step-by-step explanation:
BYHELPINGME
Help me with this pls
Answer:
n=2
Step-by-step explanation:
-4n - 8 = 4(-3n + 2)
-4n - 8 = -12n + 8
8n = 16
n = 2
write:
3^-4 in standard form
Answer:
[tex]\frac{1}{81}[/tex]
Step-by-step explanation:
Key skills: Exponents + Fractions
Use the negative exponent property. If your number is x^-y then it would be the same as 1/x^y
3^-4 is the same as [tex]\frac{1}{3^{4}}[/tex]
3^4 is 81, so your answer would be 1/81.
Hope you have a nice day and understood this!
height versus age domain and range
Answer:
While there is a strong relationship between the two, it would certainly be ridiculous to talk about a tree with a circumference of –3 feet, or a height of 3000 feet. When we identify limitations on the inputs and outputs of a function, we are determining the domain and range of the function.
Step-by-step explanation:
which is larger -1.5 or -3 1/2
Answer:
-1.5
Step-by-step explanation:
Answer:
-1.5
Step-by-step explanation:
sorry if I'm wrong
A couch and coffee table cost a total of $1167. The cost of the couch is two times the cost of the coffee table. Find the cost of each item.
Answer:
The couch is $778 and the table is $389
Step-by-step explanation:
Please don’t ignore I really need some help on this
Answer:
38.22
Step-by-step explanation:
Remark
You take the discount first. Most places apply a sales tax only when money changes hands (or it should be that way).
Discount
45.50 * 20/100 = 9.10
45.50 - 9.10 = 36.4
Sales Tax
46.4 * 5/100 = 1.82
Total Cost
Total Cost after the discount = 36.4 + 1.82 = 38.22
2 trains leave from the same point and travel along straight tracks that differ in direction by 72ﾟ. If their speeds are 64 miles per hour and 52 miles per hour approximate how far apart they will be after 30 minutes
Answer:
34.44 miles
Step-by-step explanation:
Distance covered bty the two trains :
Distance = speed * time
Time = 30 minutes = 0.5hr
Distance of train 1 = 64 * 0.5 = 32 miles
Distance of train 2 = 52 * 0.5 = 26 miles
Included Angle = 72°
Using cosine rule :
a² = b² + c² - 2bcCosA
Let Distance between the trains after 30 minutes = a
a^2 = 32^2 + 26^2 - 2(32)(26) * Cos(72)
a^2 = 1700 - 514.20427
a^2 = 1185.7957
a = sqrt(1185.7957)
a = 34.435
a = 34.44 miles
Select all of the following equations the number 30 will make true.
A. 270 ÷ □ = 9
B. 1,200 ÷ □ = 400
C. 9,000 ÷ □ = 300
D. 600 ÷ □ = 200
E. 330 ÷ □ = 110
(4f-5+2g)-(6g+4)
change to standard form
Answer:
4f-4g-9
Step-by-step explanation:
first I did i put 4f cuz u can't do anything to it so then I subtract 2g-6g you will get -4g and then add -5 +4=-9
hope this helps
a clock bought for RS 120 and sold at 20 Percentage
Answer:
Cost price of the cycle = Rs. 1200
Selling price of the cycles = Rs. 1500
SP > CP ⇒ there is a gain.
⇒ Gain = SP - CP = 1500 - 1200 = Rs. 300
∴ Gain Percentage =
CP
Gain
(100)%
=
1200
300
(100)%=25%
∴ The shopkeeper makes a profit of 25%
PLEASE HELP ME WITH THIS ASAP
Answer:
92.736
Step-by-step explanation:
Answer:
92.736 square feet
Step-by-step explanation:
Area is length times width
4.8 x 19.32 = 92.736 Square feet