Answer:
Step-by-step explanation:
(10j – 7)-(-9j + 2)
10j-7+9j-2
19j-9
Francine and Cheryl receive equal scores on a test made up of multiple choice questions for an essay. Francine got 34 multiple choice questions correct and received 14 points for her essay. Cheryl got 30 multiple choice questions correct and received 22 points for her essay.
Answer:
hello I would like to help you but you don't give us the question? how do you expect people to help you if you don't actually give the question
A passenger train leaves the train depot 2 hours after a freight train left the same depot. The freight train is traveling 20mph slower than the passenger train. Find the rate of each train, if the passenger train overtakes the freight train in threehours.
Answer:
50 (mph) = rate of passenger train
Step-by-step explanation:
Let the rate of the freight train = R
Let the rate of the passenger train be R + 30
The freight train has been traveling for 2 + 3 = 5 hours
And the passenger train has been traveling for 3 hours
And they have traveled the same distance when the passenger train overtakes the freight train
So using rate * time = distance we have that
R(5) = (R + 20) 3 simplify
5R = 3R + 60 subtract 3R from both sides
2R = 60 divide both sides by 2
R = 30 (mph) = rate of freight train
R + 20 = 50 (mph) = rate of passenger train
PLS HELP I'LL DIRECTLY MARK YOU BRAINLIST !!!
Answer:
[tex]12 \div \frac{3}{4} = 12 \times \frac{4}{3} = 12 \times 4 \div 3 = 4 \times 4 = 16 \\ 16 \times 5 = 80 \: ft \: [/tex]
first you must know how many 3/4 do you have
because of scale
and after that multiply to 5 to get actual length
Solve by
substitution or elimination
2x-y=10
4x-2y=21
Item 1
Which symbol correctly compares these fractions?
−3/5□−2/3
>
<
=
Answer:
The answer is -3/5 > -2/3
Step-by-step explanation:
okay
Answer:
the answer is. ......
−3/5>2/3
On his bookshelf, Adam has the difference between two-thirds of Brett's books and two-thirds of Charlie's books. If Brett has 84 books and Charlie has 27 books, how many books does Adam have?
Answer:
30 books
Step-by-step explanation:
Which defines the relationship between the number -9 and its additive inverse?
A. -9x1= -9
B-9 +0= -9
C. (-9) X0 = 0
D. (-9) +9 = 0
What is an equation of the line that passes through the point (−1,−3) and is parallel to the line 6x-y=1?
Answer:
y = 6x + 3
Step-by-step explanation:
6x - y = 1
6x -1 = y
Slope = 6
Point (-1,-3)
y-intercept = -3 - (6)(-1)
= -3 + 6 = 3
y = 6x + 3
Pls I need help and a explanation
Answer:
20) 7/16 = 0.4375
21) 1/6 = 1.6 repeating
22) 2 4/5 = 2.8
23) 98 2/3 = 98.6 repeating
24) 0.8 = 4/5
25) 26 1/5
26) 72.1 repeating = 72 1/9
27) 0.505 = 101/200
Explanation:
To convert fraction into decimal, divide the numerator by the denominator and that's your answer. For example:
7 ÷ 16 = 0.4375.
To convert a decimal into a fraction, place the number after the decimal point over the number place it's in. For example: If you look at 0.8 , 8 is in the tenths place, so you place it over 10 like this 8/10, and then you simplify. Half of 8 is 4 , and half of 10 is 5, so you'd have 4/5.
For #27, since 505 in 0.505 , is in the thousandths place, you'd put it over 1,000 like this 505/1000 and then you simplify. Look at image above to learn how to simplify 505/1000.⤴⤴⤴
(solve equation)
7b=84
Answer:
b = 12
Step-by-step explanation:
7b = 84
We can break down 7b as 7 x b
7 x b = 84
We divide both sides by 7:
7 x b ÷ 7 = 84 ÷ 7
b = 12
-Chetan K
PLEASE HURRY Which of the following is NOT a solution in the solution region.
(-4, -1)
(-4, -1)
(0, -4)
(0, -4)
(5, 2)
(5, 2)
(2, -8)
Answer:
Need full problem.
Step-by-step explanation:
Need full problem.
I need help with this:
Answer:
I need you hahaah
Step-by-step explanation:
Answer:
38_kaksfhdksks ejdjdjdk sjdjdjs
Please help! I will mark brainliest!
Answer:
1. is 283.9953
Step-by-step explanation:
360 degrees - 76.0047 degrees is 283.9953
no spams
need a well explained ans
if u don't know stay out of the question
The three inside angles need to equal 170 when added together.
When two sides are the same which is shown by the little lines through the sides the two bottom angles are the same.
1. X = 170-80-80 = 20
2. X = 180-75-75 = 30
3. X = 180-70 = 110/2 = 55
Step-by-step explanation:
1) x+80°+80°=180°
x=180°-160°
x=20°.
2) as it is a isosceles triangle, y =75°.
x+75°+75°=180°
x=180°-150°
x=30°.
3) 2x+70°=180°
2x=110°
x=55°.
hope all these helps you.
75.25-11.92
what is the answer
Answer:
63.33
Pretty easy if you use a calculator
Graph y ≤ 1 - 3x.
(picture added)
Which equation reveals the minimum or the maximum value of f(x) without changing the form of the equation?
A f(x) = (x – 1)2 + 2
6 f(x) = x2 – 2 – x + 1
© f(x) = x2 – 2x + 1
D f(x)= (x - 1)(x - 1)
Answer:
A): f(x) = (x – 1)² + 2
Step-by-step explanation:
The quadratic function, f(x) = (x – 1)² + 2 is in vertex form: y = a(x - h)² + k, where:
The vertex of the graph is (h,k).The value of a determines whether the graph opens up or down. If a is positive, the graph opens up and the vertex is its minimum point. If a is negative, then the graph opens down, and the vertex is its maximum point. The value of h determines how far left or right the parent function is translated. The value of k determines how far up or down the parent function is translated.The function, f(x) = (x – 1)² + 2, provides the pertinent information that allows us to determine the parabola's minimum value, as the value of a is a positive, which implies that the parabola is upward facing, and the vertex, (1, 2) is the minimum point.
Please mark my answers as the Brainliest if you find this helpful :)
Solve for h in terms of g and u
4u²(2u²) /g = -2u²h -gh²/2 +h
9514 1404 393
Answer:
h = (1 -2u² ± √(1 -4u²-12u⁴))/g
Step-by-step explanation:
This is a quadratic in h, so there are two solutions.
Written in standard form, the given equation is ...
(-g/2)h² +(1-2u²)h -8u⁴/g = 0
The quadratic formula tells you the solution for h is ...
h = (-(1 -2u²) ±√((1 -2u²) -4(-g/2)(-8u⁴/g)))/(2(-g/2))
h = (2u² -1 ± √(4u⁴ -4u² +1 -16u⁴))/-g . . . . . simplify
h = (1 -2u² ± √(1 -4u²-12u⁴))/g . . . . . . . . collect terms
The perimeter of a rectangle is 28cm it’s length is more than 10cm more than it’s widith which equation can be used to find the dimensions
P = 2((10 + x) + x)
The perimeter of a rectangle is the sum of the length and width multiplied by 2
P = 2(l + w)
[to simplify the expression]
P = 2 × (l + w)
[using x to represent the width]
w = x
l = x + 10
P = 2 × ((10 + x) + x)
P = 2((10 + x) + x)
How do you find the zero of a function by graphing?
Answer:
Look where the function intersects the x axis. The x coordinate of those points are the zeroes of the function
Step-by-step explanation:
12r-5 61°
R
A) 790
C) 140°
B) 70°
D) 970
Answer:
79 because x = 7 so 12 x7 - 5 =79
A student earned a grade of 80% on a math test that had 20 problems.How many problems on this test did the student answer correctly
Answer:
16 problems
Step-by-step explanation:
1. First, we must know that to find how many problems the student solved, we have to multiply the percentage he got by the total number of problems.
2. (Solving)
[tex]\frac{80}{100}*20[/tex] [tex]\frac{4}{5} *20[/tex] [tex]\frac{80}{5}[/tex] [tex]16[/tex]Therefore, the student answered 16 problems correctly.
Answer:
16
Step-by-step explanation:
series representation of
[tex]e[/tex]
[tex] \huge \underline \mathtt \colorbox{cyan}{ATTACHMENTS}[/tex]
All 3 are possibleTrue or false??????????
Answer:
True
Step-by-step explanation:
Answer:
TRue
Step-by-step explanation:
Did that also
Any experts, help please.
(7,0). (3.6)
What is the slope?
Step-by-step explanation:
given,
points = (7,0) & (3,6)
we know,
slope = y_2 - y_1 / x_2 - x_1
now,
→ 6 - 0/3-7
→ 6/-4
→ -1.5 or 3/-2
therefore , slope of line is -1.5 OR In the form of fraction it is 3/-2.
hope this answer helps you dear...take care and may u have a great day ahead!
Will give correct answer brainliest
Answer:
(2,-5)
(-6,-7)
(-7,-4)
these are the coordinates after the transformation
3x + 5y = 5 7x + 5y = 25 what would be x and y for them
Which graph matches the equation 4x² + 25y^2 = 100?
graph b matches the equation
What is 5x+4=8x-71? SHOW WORK!!!!
Answer:
x=25
Step-by-step explanation:
5x + 4 = 8x-71
-5x = -5x
4 = 3x-71
+71 = +71
75 = 3x
75/3 = 3x/3
25 = x