Answer:
$250
Step-by-step explanation:
50+100n= 50+100(2)= 50+200=250
Sincerest Apologies if this is incorrect
answer this super simple word problem for so many points
Answer:
60kph
Step-by-step explanation:
Distance = Rate X Time
640 = r x 4+ (r+5) x 7
640 = 4r + 7r + 35
640=11r + 35
640 - 35 = 11r
605 = 11r
r = 605 / 11
r= 55 kph
r=55 =5 =60 kph is the speed of the train
To see if the answer is right: 55 x 4 + 60 x 7 = 220 + 420 = 640 km
Calculate the area of a square with side length 12 cm
Answer:
144 cm^2
Step-by-step explanation:
A square has equal sides, and so if one side is 12 cm, so are the rest.
So 12 * 12 = 144.
Answer:
c
Step-by-step explanation:
What lines are parallel?
A: y=3x-2 and y=1/3x-3
B: y=x and y=3
C: y=0 and y=3
Please explain the answer!!! Will give brainliest!!!
Answer:
C
Step-by-step explanation:
y=0 gives the straight horizontal line passing through (0,0)
y=3 also gives straight horizontal line passing through (0,3)
In order to find out which two lines are parallel, let's find the slope of each line first.
The slope of the line y=3x-2 is 3.
The slope of the line y=1/3x-3 is 1/3
The slope of the line y=x is 1
The slope of the line y=3 is 0
The slope of the line y=0 is 0
Now, if two lines have the same slope, they are parallel to each other.
So if a line's slope is 0, the line parallel to it has a slope of 0.
So the parallel lines here are ↓
y=0 and y=3
hope helpful ~
helpppp will give brainlistdhd
Answer:
S18 = 288
Step-by-step explanation:
find the first and last term.
n = 1
a1 = 2 x 1 - 3
a18 = 2 x 18 - 3
(simplify the expression)
a1 = -1
a18 = 33
(use the formula for the sum of a finite arithmetic series)
a1 + a18
S18 = 18 x ---------------------
2
(use the substitute) substitute -1 for a1 and 33 for a18
-1 + 33
S18 = 18 x ---------------------
2
simplify the expression and ur done hope this helped x
ps. wheres my head :)
For which value of x is the equation 2(1+x)=x+3
One morning, Justin drove 2 hours before stopping to eat lunch. After lunch, he increased his speed by 10 mph. If he completed a 220-mile trip in 6 hours of driving time, how fast (in miles per hour) did he drive in the morning
Answer:
30
Step-by-step explanation:
Let x be his speed at the morning, in miles per hour.
Then his speed after lunch was (x+10) mph.
2x + 3(x+10) = 220.
2x + 3x + 50 = 220
Find the unknown length of the side labeled x.
Answer:
8.66
Step-by-step explanation:
because when you know the long leg you multiply 3 square root by the long leg in this case 5
Determine the length of the missing side.
Answer:
5
Step-by-step explanation:
pythagorean triple is 5-12-14 or use pythagorean theorem
b=[tex]\sqrt{ 13^{2} -12^{2} }=\\\sqrt{169-144} =\\\sqrt{25} =5[/tex]
Answer: 5
Step-by-step explanation: The square root of 13²- 12²
A gold, a silver, and a bronze medal are awarded in an Olympic event. In how many possible ways can the medals be awarded for a 200-meter sprint in which there are 8 runners
Answer:
1320 ways
Step-by-step explanation:
an olympic event getting a gold medal is not equal to getting a silver or a bronze medal. Hence, we will use the concept of permutation for this problem as order matters here. Hence, there are 1320 ways in which 8 runners can get these 3 medals
i will give 50 points
Answer:
8 home games and 10 away games
Step-by-step explanation:
Total home goals
= 8 +5 +9 +8 = 30
Number of home games
= 30/3.75 = 8
Total away game goals
= 7 + 8 + 4 + 5 = 24
Number of away games
= 24/2.4 = 10
Easy Peasy :) Hope this helped! <3 brainliest please :)
Answer:
10 away games and 8 home games
Step-by-step explanation:
select the equivalent expression (3^3*6^6)^-3
Answer: Choice B and Choice D
Step-by-step explanation:
4^-2 * 7^-2= 16*49=784
Answer:
B & C
Step-by-step explanation:
[tex]4^-^2*7^-^2[/tex] is equal to [tex]\frac{1}{784}[/tex]
[tex]\frac{1}{28^2}[/tex] is also requal to [tex]\frac{1}{784}[/tex]
[tex]\frac{7^-^2}{4^2}[/tex] is also equal to [tex]\frac{1}{784}[/tex]
The function h(x) is given in the table above.
Which of the following choices shows the
average rate of change of the function over the
interval 2 ≤ x ≤ 6?
A. 6/4
B. -3/2
C.-7/6
D. -1
Rate of change
h(6)-h(2)/6-23-9/6-2-6/4-3/2Option B
Which of the following functions has a rate of change that stays the same?
A:y = 4x+10
B:y=-4x+10
C:y = 3^x
D:y = x² + 2
Answer:
C:y = 3^x
Step-by-step explanation:
The answer is C because the rate of change is always -6.
4. Which condition would not prove
KML~JNL?
The endpoints of a
diameter of a circle are (2,
4) and (-4, 7). What is the
standard form of the
equation
of this circle?
I know one of the answer is not c
Hurry i got like 30 mins left and a girl is tired
Answer:
2nd option
Step-by-step explanation:
the equation of a circle in standard form is
(x - h)² + (y - k)² = r²
where (h, k ) are the coordinates of the centre and r is the radius
the centre is at the midpoint of the endpoints of the diameter.
The coordinates of the centre is the average of the coordinates of the endpoints.
centre = ( [tex]\frac{-4+2}{2}[/tex], [tex]\frac{7-1}{2}[/tex] ) = ([tex]\frac{-2}{2}[/tex] , [tex]\frac{6}{2}[/tex] ) = (- 1, 3 )
the radius is the distance from the centre to either of the endpoints
using the distance formula to calculate r
r = [tex]\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2[/tex]
with (x₁, y₁ ) = (- 1, 3 ) and (x₂, y₂ ) = (2, - 1 )
r = [tex]\sqrt{(2-(-1))^2+(-1-3)^2}[/tex]
= [tex]\sqrt{(2+1)^2+(-4)^2}[/tex]
= [tex]\sqrt{3^2+16}[/tex]
= [tex]\sqrt{9+16}[/tex]
= [tex]\sqrt{25}[/tex]
= 5
then equation of circle is
(x - (- 1) )² + (y - 3)² = 5² , that is
(x + 1)² + (y - 3)² = 25
Is 2.67034165508… rational or unrational?
Answer:
Unrational
Step-by-step explanation:
Step 1: Determine what is rational and unrational
"A rational number includes any whole number, fraction, or decimal that ends or repeats. An irrational number is any number that cannot be turned into a fraction, so any number that does not fit the definition of a rational number."
Step 2: Now determine what our number fits into
Since our decimal isn't a whole number, isn't a fraction, and it is a decimal that continues to either repeat or just continues. Therefore, our number would fit into the unrational category. If our number is just 2.67034165508 then it would be a rational number since it ends. However, since we have the ... at the end that means that it continues and therefore falls into the unrational category.
Answer: Unrational
which fraction is equivlent to 8/10
Answer:
4/5 or 16/20
Step-by-step explanation:
did my best with the info provided
Answer:
4/5
Step-by-step explanation:
8/10 = 80% 1. / the fraction by 2
4/5 = 80%
Help and show work please I beg u!
Lisa used 6 2/3 feet of rope to make a jump rope. She also used 4 1/5 feet of rope to make a leash for her dog. Which expression could be used to determine the amount of rope, in feet, that lisa used? (A) 10+2 /15 (B) 10+3/8 (C) 6+4+10/15+3/15 (D) 6+4+3/15+3/15
Answer:
(C) 6+4+10/15+3/15
Step-by-step explanation:
2/3=10/15
1/5=3/15
6+4+13/15
10 13/15
Which expression is equivalent to startfraction 3 x over x 1 endfractiondivided by x 1?
The expression that is equivalent to [3/(x + 1)] ÷ 1/(x + 1)] after simplification is gotten as; 3
How to simplify fractions?We want to simplify the expression;
[3/(x + 1)] ÷ 1/(x + 1)]
This fraction expression will be re-expressed as;
[3/(x + 1)] * (x + 1)/1
x + 1 will cancel out to give us the expression as;
[3/(x + 1)] * (x + 1)/1 = 3
Read more about simplification of fractions at; https://brainly.com/question/6109670
Answer:
Step-by-step explanation:
c
The graph of a linear function is shown on the grid.
Which equation is best represented by this graph?
Answer:
C
Step-by-step explanation:
Because thats the answer
You are one of 22 people whose name will be drawn for a prize. What is the probability that your name will be drawn first? Express your answer as a fraction.
Answer:
1/22
Step-by-step explanation:
Its 1/22 because that is the total probability of your name being drawn for the prize
a. Subtraction Property of Equality
b. Addition Property of Equality
c. Division Property of Equality
d. Multiplication Property of Equality
Answer:
The correct answer would be option A; Subtraction Property of Equality
Step-by-step explanation:
This is because you are subtracting 3 on both sides of the equation to go from;
x + 3 = 17
to
x = 14
Hope this helps!
Every day when Brandon arrives at work he must decide to either take the stairs or use the elevator to get to his office on the third floor. What type of decision is this
Answer:
would you rather, i think
Which factored form is equivalent to the expression x^2 + 5x + 4? A) (x + 2)(x + 3) B) (x + 4)(x + 1) C) (x + 5)(x − 1) D) (x − 4)(x + 1)
option B.
Calculations ↓
First, let's think of two numbers so that :
if we multiply these numbers, we'll get 4if we add these numbers, we'll get 5These numbers are :
4 and 1
Plug these numbers here :
(x+4) (x+1)
So the correct factored form of this expression is
Option B) (x+4)(x+1)
[tex]\footnotesize\text{hope\:helpful~}}[/tex]
Solve for x in the equation x squared 14 x 17 = negative 96.
The value of x in the given quadratic equation is determined as -7 ± 8i.
Solution of the quadratic equationThe solutiion to the linear equation is determined as follows;
x² + 14x + 17 = -96
x² + 14x + 17 + 96 = 0
x² + 14x + 113 = 0
solve the equation using formula method;
a = 1, b = 14, c = 113
[tex]x = \frac{-b \ \ \pm\sqrt{b^2 - 4ac} }{2a} \\\\x = \frac{- 14\ \ \pm\sqrt{(14)^2 - 4(1\times 113)} }{2(1)} \\\\x = \frac{- 14\ \ \pm\sqrt{-256} }{2}\\\\x = \frac{- 14\ \ \pm\sqrt{256} \times \sqrt{-1} }{2}\\\\x = \frac{-14 \ \ \pm 16 \times i}{2} \\\\x = -7 \pm 8i[/tex]
Thus, the value of x in the given quadratic equation is determined as -7 ± 8i.
Learn more about quadratic equation here: https://brainly.com/question/1214333
Answer:
-7 ± 8i.
Step-by-step explanation:
I took the test
In 2010, Cameron invested $10,000 in an account that earns 8. 5% interest compounded monthly. How much money would Cameron have gained by 2025?
Answer:
Step-by-step explanation:
First, we need to calculate how many years will earn percent.
2010---->2025= 15 years elapsed. Now we have our time, we need to plug it in our compound interest formula=
Principal(rate+1)^time or A=P(1+R)^t
10,000(0.085+1)^15
=$33,997.43
To calculate how much Cam earned, you need to subtract from original amount.
=$33,997.43-10,000=
---->$23997.43
Please mark me brainiest :)
DOES ANYONE KNOW HOW TO SOLVE THIS? EXPLANATION IS MUCH NEEDED!!!
find area of the shaded portion of the figure
Answer:
[tex]\sf C) \quad 57 \frac34 \:cm^2[/tex]
Step-by-step explanation:
To find the shaded area, subtract the area of the semicircle from the area of the rectangle.
Formulae
[tex]\textsf{Area of a rectangle}=\textsf{width} \times \textsf{length}[/tex]
[tex]\textsf{Area of a semicircle}=\dfrac12 \pi r^2 \quad \textsf{(where r is the radius)}[/tex]
[tex]\textsf{Diameter of a circle}=2r \quad \textsf{(where r is the radius)}[/tex]
Area of rectangle
Given dimensions of the rectangle:
width = 7 cmlength = 11 cmSubstituting these values into the formula:
[tex]\implies \textsf{Area}=\textsf{7} \times \textsf{11}=77\: \sf cm^2[/tex]
Area of semicircle
Diameter of semicircle = 11 - 2 - 2 = 7 cm
⇒ Radius (r) = 7 ÷ 2 = 3.5 cm
[tex]\textsf{let}\: \pi=\dfrac{22}{7}[/tex]
[tex]\implies \textsf{Area}=\dfrac12 \left(\dfrac{22}{7}\right) (3.5)^2=19.25\: \sf cm^2[/tex]
Area of shaded region
= area of rectangle - area of semicircle
= 77 - 19.25
= 57.75
[tex]\sf =57 \frac34 \:cm^2[/tex]
pls help with this maths question... feels like I'm missing something easy ;/
Answer:
10.34 cm.
Step-by-step explanation:
First we need to calculate the angle between the hour and minute hand
We see that there are 5 * 5-minute intervals between the 2 hands and the clock has 12 * 5-minute intervals, so:
This is 5/12 * 360 = 150 degrees,
So we apply the Cosine Rule to the triangle:
x^2 = 4.5^2 + 6.2^2 - 2*4.5*6.2cos150
= 107.014
x = √107.14 = 10.34.
Missing length is 10.3cm to 1.d.p
The clock is a circle divided into 12
360/12=30 degrees for each part
1) 7 to 8
2) 8 to 9
3) 9 to 10
4) 10 to 11
5) 11 to 12
5 parts
30 x 5 = 150 degrees
We've got an angle between 2 lengths - cosine rule comes to mind for me.
a = root 6.2^2 + 4.5^2 - 2x6.2 4.5 x cos 150
= 10.34476764
length is 10.3cm to 1.d.p
(the others are to 1.d.p too)
Hope this helps!