Answer:
-4
Step-by-step explanation:
Answer:
A: -4
Step-by-step explanation:
Expand first, "-5 x 3n = -15n" , "-5 x 4 = -20"
Then you have "-15n - 20 = 40"
Transfer the -20 to the RHS,
Then you have "-15n = 60"
Divide both sides by -15
n = -4
In ΔHIJ, h = 450 cm, i = 210 cm and j=640 cm. Find the measure of ∠I to the nearest degree.
Answer:
10
Step-by-step explanation:
The measure of an angle∠I is 10 degrees between the 450 cm and 640 cm sides.
What is the Cosine Rule?The Law of Cosines (also called the Cosine Rule) is defined as it relates all three sides of a triangle with an angle of a triangle.
c² = a² + b² − 2ab cos(C)
The cosine rule, also known as the law of cosines, relates all 3 sides of a triangle with an angle of a triangle. it relates the lengths of the sides of a triangle to the cosine of one of its angles.
In the given triangle ΔHIJ,
Sides:
h = 450 m
i = 210 m
j = 640 m
The angle of ∠I is 10 degrees between the 450 cm and 640 cm sides.
According to the cosine rule,
j² = h² + i² − 2ab cos(I)
Substitute the values in the Cosine Rule,
450² = 210² + 640² - 2(210)(640)cos(I)
After solving we get the value of angle ∠I :
∠I = 9.56038°
Rounded to the nearest degree.
∠I = 10°
Thus, the measure of an angle∠I is 10 degrees.
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A truck is 180 inches long. A car is 30% shorter than the truck. How long is the car?
PLEASE HELP ME :) 20 points
Answer:
its d thats the right anwsers
Step-by-step explanation:
If a football player lost a total of 66 yards in 11 plays, how many yards on average did he lose each play? Express this loss as an integer.
-
Is it 6 or -6?
What is fourty three hundredths as a decimal
Answer:
0.043
Step-by-step explanation:
0.0 is tenths
0.00 is 100ths
WHICH OF THE FOLLOWING REPRESENTS A NON LINEAR EQUATION
Answer:
y = 3/x
Step-by-step explanation:
Which of the following is the lowest cost per can?
A. 3 cans of juice for $3.80
B.
5 cans of juice for $6.15
C.
8 cans of juice for $9.52
D.
12 cans of juice for $14.58
Answer:
The answer is C. 8 cans of juice for $9.52
Step-by-step explanation:
A. About $1.27 per can
B. $1.23 per can
C. $1.19 per can
D. About $1.22 per can
According to the calculations, 8 cans of juice for $9.52 is the lowest cost out of the four answer choices.
8(x – 3) – (6 – 2x) = 2(x + 2) – 5(5 – 2)
Answer:
x= [tex]\frac{19}{8}[/tex]
Step-by-step explanation:
8(x−3)−(6−2x)=2(x+2)−5(5−2)
Step 1: Simplify both sides of the equation.
8(x−3)−(6−2x)=2(x+2)−5(5−2)
8(x−3)+−1(6−2x)=2(x+2)−5(5−2)(Distribute the Negative Sign)
8(x−3)+(−1)(6)+−1(−2x)=2(x+2)−5(5−2)
8(x−3)+−6+2x=2(x+2)−5(5−2)
(8)(x)+(8)(−3)+−6+2x=(2)(x)+(2)(2)+−5(5−2)(Distribute)
8x+−24+−6+2x=2x+4+−15
(8x+2x)+(−24+−6)=(2x)+(4+−15)(Combine Like Terms)
10x+−30=2x+−11
10x−30=2x−11
Step 2: Subtract 2x from both sides.
10x−30−2x=2x−11−2x
8x−30=−11
Step 3: Add 30 to both sides.
8x−30+30=−11+30
8x=19
Step 4: Divide both sides by 8.
8x/8=19/8
Answer: x=[tex]\frac{19}{8}[/tex]
8(x - 3) - (6 - 2x) = 2(x + 2) - 5(5 - 2)
8*x - 8*3 - 6 + 2x = 2*x + 2*2 - 5*3
8x - 24 - 6 + 2x = 2x + 4 - 15 ( Cancel equal terms on both sides of the equation)
8x - 24 - 6 = 4 - 15
8x - 30 = -11
8x = -11 + 30
8x = 19
x = 19/8
all you need is in the photo
answe fast pleaseee
Answer:
just divide them
Step-by-step explanation:
Answer:
m = 810 movies
Step-by-step explanation:
6,840 = 3(1740) + 2m
6,840 = 5,220 + 2m
Subtract 5,220 on both sides
1,620 = 2m
Divide each side by 2
m = 810
please please help
The rectangular patio shown in the diagram below is enclosed on three sides by a fence.
Patio
w
House
The area of this patio is no more than 400 square feet. The total length of the three sides of
this fence is no more than 60 feet. Which system of inequalities can be used to find values of
1, the patio's length, and w, the patio's width, that will satisfy these conditions?
Answer: A
i had looked up another question on my quiz thing and an old staar test popped up and this was one of the questions with the answer, i also had this question on my quiz.
Plz help!!
Will give brainliest
3(2x + 4) + 2(x-2)
Match the equivalent expressions
Answer:
3(2x+4)+2(x-2)
6x+12+2x-4
6x+2x+12-4
8x+8
I am from grade 9 from which grade are you
On a map with a scale of 0.25 inch = 30 miles the distance between two cities is 8.3 inches
Answer:
Step-by-step explanation:
8.3÷0.25
Multiply that by 30 and you get 996
The actual distance between the two cities will be 996 miles.
What is the distance?Distance is defined as the product of speed and time.
Scale is defined as a ratio that represents the relationship between the shape and size of a figure and the corresponding dimensions of the actual figure or object.
The given scale is 0.25 inches on the map representing 30 miles.
If the distance between two cities is 8.3 inches
As per the given scale, the actual distance between the two cities will be as:
⇒ 8.3 × 30/0.25
⇒ 83/10 × 3000/25
⇒ 249,000/250
Apply the division operation, and we get
⇒ 996 miles
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The question seems to be incomplete the correct question would be:
On a map with a scale of 0.25 inch = 30 miles the distance between two cities is 8.3 inches. find the actual distance between two cities?
Find the measure of each side indicated. Round to the nearest tenth.
Answer:
Step-by-step explanation:
to find x we can use tangent function
tan 31= x/9
0.60=x/9
x=0.60*9=5.4 choice B
The measure of x side.
We have given a right angle triangle whose angle A=31 degrees and two sides that is x and 9.
We have to determine the value of x.
Therefore we use here the trigonometric ratio
What is the tan ratio?[tex]tan\theta=\frac{opposite side}{adjacent side}[/tex]
Therefore we get
tan 31= x/9
tan(31)=0.60
0.60=x/9
Isolate the x
x=0.60*9
x=5.4
Therefore option B is correct.
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Is this correct ? Please answer asap !
Answer:
Yes that formula is right, and the y- intercept is where the line intersects with the y- axis on the graph.
i suck at this math stuff please help
Answer:
Its the second one
Step-by-step explanation:
8 + 3m = 26 what is thissssss
Answer:
m=6
Step-by-step explanation:
Subtract 8 from both sides.
then divide both sides by 3 to get 6.
Hope this helps!
(Geometry) Determine the relationship between the two given lines:
Y=-2x+8
Y=-2x+5
a. Perpendicular because slopes are equal
b. These slopes are neither perpendicular nor parallel
c. Parallel because slopes are equal
d. Parallel because slopes are opposite reciprocals
e. Perpendicular because slopes are opposite reciprocals.
am ÷ an = _________
A boat goes 24 miles at a constant speed in 4 hours against a river current.
It takes the boat 3 hours to go the same distance at the same speed with the
current of the river. What is the speed of the boat and what is the current of
the river?
The speed of the boat is 7 miles/hour and the current of the river is 1 mile/hour.
What is the distance?Distance is a numerical representation of the distance between two items or locations. Distance refers to a physical length or an approximation based on other physics or common usage considerations.
We have:
A boat goes 24 miles at a constant speed in 4 hours against a river current.
It takes the boat 3 hours to go the same distance at the same speed with the current of the river.
Let's suppose the speed of the boat is x miles/hour and the current of the river is y
x- y = 24/4
x - y = 6 ..(1)
x + y = 24/3
x + y = 8 ..(2)
Adding equation (1) and (2):
2x = 14
x = 7 miles/hour
y = 8 - 7 = 1 miles/hour
Thus, the speed of the boat is 7 miles/hour and the current of the river is 1 mile/hour.
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246.8 is what percent of 128? Round to the nearest thousandth.
Answer:
60%
Step-by-step explanation:
Answer:
Most 193%
Step-by-step explanation:
246.8/128= 1.928
Rogelio's pay for working part-time at his father's
shop was $24.25, $26.25, $23.50, $32.55, $28.35,
$30.80 and $27.50. What is the median of his
νησος 2 ?
Answer:
The Median of all these numbers is $32.55
Step-by-step explanation:
PLS HELP LAST ONE I NEED ILL MARK U BRAINLIEST
Rewrite the sum of 75+18 as a product of a number and another sum
Answer:
(2)(9) + 75 = 75+18
Step-by-step explanation:
(2)(9) + 75 = 75+18
The expression written as a product of a number and another sum is 3(25 + 8)
Given the expression 75 + 18, we are to write as a product of a number and another sum.
First we need to find the GCF of 75 and 18
75 = 3 * 25
18 = 3 * 6
Since 3 is common to both D+GCF, we can factor it out from the expression to have:
75 + 18 = 3(25 + 8)
Hence the expression written as a product of a number and another sum is 3(25 + 8)
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9÷45 plz help someone
Answer: 0.2
Step-by-step explanation:
5у - 4х = -7
2y + 4x = - 14
Hereeeeeee helllllllpp lol
What is the area, in square meters, of the rhombus above?
Answer:
C
Step-by-step explanation:
Answer:
Answer is D
Step-by-step explanation:
In order to find the answer you would need to multiply 7 square meters by 7.9 square meters which would get 55.3 square meters.
social experiment in herd socialization. if your best friend did what? would you follow select the one that has to do with herd social.
A. Says thank you to her mom
B. does a bahhhhhhhhhhhhd thing
C. join a school they arent going to because its fun
D. Remove them from instat because they talked sad about sheep
choose wisely no redos this is %20 of your grade
On a field trip, there are 3 adults for every 45 students. Which graph models a relationship
with the same unit rate?
10
9
8
7
6
10
9
8
F
H
0
30 60 90 120 150*
0
30 60
90
120 156
10
9
10
8
6
3
6
5
4
3
2
0
30 60 90 120 150
0
30
60 90 120 150
Answer:
H (the second graph)
Step-by-step explanation:
