5x -4y = -23
-5x + 9y =8
Answer:
Let's solve for x.
5x−4y=−23−5x+9y
Step 1: Add 5x to both sides.
5x−4y+5x=−5x+9y−23+5x
10x−4y=9y−23
Step 2: Add 4y to both sides.
10x−4y+4y=9y−23+4y
10x=13y−23
Step 3: Divide both sides by 10.
10x
10
=
13y−23
10
x=
13
10
y+
−23
10
Answer:
x=
13
10
y+
−23
10
Step-by-step explanation:
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help me I'm bout to breakdown on this and cry help I'm rlly not ok
Answer:
বাংলা ৬ নাম্বার প্রশ্নের উওর টা কি
Answer: 3/5 is the correct answer
Find f (0) if f(t) = t2 – 2t – 5.
Answer: -5
If f(t) = t^2 - 2t - 5, then f(0) = 0^2 - 2(0) - 5. That simplifies to be f(0) = -5
Given f(x) = -3x - 2, find the following:
a. f(3)
b. f(-1)
c. f(-2)
Answer:
Answer is f(3)
Step-by-step explanation:
i did test
unit 1 test algebra 2
6) The solution set of the equation x² + 8x - 15 = 5x + 13 is {-7, 4}.
7) The zeroes of the expression 2x (x - 5) (x + 7) are {-7, 0, 5}.
8) The expression (x + 5) (x + 8) + (x + 5)(2x - 3) can be written as a product of (x + 5) and (3x + 5).
9) There are 2 integer solutions on the interval 0 ≤ x ≤ 10 for the equation x³ - 5x² + 2x + 13 = 5.
We have,
6)
x² + 8x - 15 = 5x + 13
Rearranging the equation:
x² + 8x - 5x - 15 - 13 = 0
x² + 3x - 28 = 0
Now, factorize the quadratic equation:
(x + 7)(x - 4) = 0
Setting each factor equal to zero:
x + 7 = 0 or x - 4 = 0
Solving for x:
x = -7 or x = 4
7)
2x (x - 5) (x + 7) = 0
Setting each factor equal to zero:
2x = 0 or x - 5 = 0 or x + 7 = 0
Solving for x:
x = 0 or x = 5 or x = -7
8)
(x + 5) (x + 8 + 2x - 3)
Simplifying the expression inside the parentheses:
(x + 5) (3x + 5)
9)
x³ - 5x² + 2x + 13 = 5
Substitute each integer value from 0 to 10 into the equation and count the number of solutions.
Substituting each integer value,
x = 0,
x³ - 5x² + 2x + 13 = 5
0 - 0 + 0 + 13 = 5
13 = 5
Not true.
Similarly,
x = 2,
x³ - 5x² + 2x + 13 = 5
8 - 20 + 4 + 13 = 5
25 - 20 = 5
5 = 5
True.
x = 4,
x³ - 5x² + 2x + 13 = 5
64 - 80 + 8 + 13 = 5
85 - 80 = 5
5 = 5
True.
There are two integer solutions:
x = 2 and x = 4.
Therefore,
The solution set of the equation x² + 8x - 15 = 5x + 13 is {-7, 4}.
The zeroes of the expression 2x (x - 5) (x + 7) are {-7, 0, 5}.
The expression (x + 5) (x + 8) + (x + 5)(2x - 3) can be written as a product of (x + 5) and (3x + 5).
There are 2 integer solutions on the interval 0 ≤ x ≤ 10 for the equation x³ - 5x² + 2x + 13 = 5.
Learn more about expressions here:
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⚠️ PLEASE I WANNA FINISH
Answer:
m = 0.666667*x+1 is the answer
Step-by-step explanation:
Are 3/5 and 18/32 equivalent ratios? Explain how you know (be specific). If you just say yes or no you will not get full credit. *
Answer:
No they are not equivalent,
Step-by-step explanation:
3 x 6 is 18 and 5 x 6 is 30, not 32 so it is non-equivalent
Consider the system of inequalities and its graph.
y ≥
y ≤ x – 3
On a coordinate plane, 2 solid straight lines are shown. The first line has a positive slope and goes through (negative 8, negative 2) and (0, 0). Everything above the line is shaded. The second line has a positive slope and goes through (0, negative 3) and (3, 0). Everything to the right of the line is shaded. The section in quadrant 1 is labeled 3, the section in quadrant 2 is labeled 2, the section in quadrant 3 is labeled 1, and the section in quadrant 4 is labeled 4.
In which section of the graph does the actual solution to the system lie?
1
2
3
4
Answer:
3
Step-by-step explanation:
the point answer to the darker shaded solution lies in area 3. Therefore the answer is 3.
write 6.1 as a mixed number and as an improper fraction. Do not try to simplify your answer
Answer:
6 1/10 mixed 61/10 improper
Step-by-step explanation:
Question 5 Iker gave the cashier $50 to pay for 6 books. The cashier gave him $6.26 in change. Each book cost the same amount. What is the cost in dollars and cents for each book? Answer
Answer: $ 7.29
Step-by-step explanation:
First you subtract 6.26 from 50
= 43.74
Then you divide 43.74 by 6
= 7.29
whoever answers this correctly gets brainliest.
Answer:
it would be 140 . 40+3+140=180
Step-by-step explanation:
order from least to greatest
3-4-140
1
Which of the following represents a
fraction that converts to a repeating
decimal with a value less than one?
A) 1/2
B) 4/3
C) 9/10
D) 479
Answer:
479
Step-by-step explanation:
Which set of values could be the side lengths of a 30-60-90 triangle?
A. 6, 12, 12\sqrt{3}
B. 6, 12, 12\sqrt{2}
C. 6, 6\sqrt{3}, 12
D. 6, 6\sqrt{2}, 12
Answer:
bbbbbbbbbbbbbbbbbbbbbbbb
Step-by-step explanation:
Answer:
4,4 sq 3, 8 sq 2
Step-by-step explanation:
HELP EASY 10 POINTS
If the circumference of a circle is 35 inches which is closest to the area
Answer:
about 97.48
Step-by-step explanation:
Answer:Well first we have the circumference of the circle 35 our first step is to divide it by pi to see what the radius is:
35/pi=11.1408460164
Now that we know what the radius of the circle we are going to square it and then multiply by pi to find what is the area of the circle:
11.1408460164²=124.118449961
124.118449961xpi=389.929610573 square inches
Now that we know what the area is of the circle we need to calculate which area is closest to the answer which happens to be A. 380 square inches.
8а +а – 3 = 6а – 2а - 3
Answer:
a=0
Step-by-step explanation:
Answer: a=0
Step-by-step explanation:
8a+a−3=6a−2a−3
Step 1: Simplify both sides of the equation.
8a+a−3=6a−2a−3
8a+a+−3=6a+−2a+−3
(8a+a)+(−3)=(6a+−2a)+(−3)(Combine Like Terms)
9a+−3=4a+−3
9a−3=4a−3
Step 2: Subtract 4a from both sides.
9a−3−4a=4a−3−4a
5a−3=−3
Step 3: Add 3 to both sides.
5a−3+3=−3+3
5a=0
Step 4: Divide both sides by 5.
5a /5= 0/5
Answer: a=0
(hope that was helpful )
36 / (-6) x -15 =
help please
Answer:the answer is 90
Step-by-step explanation:
Which is an equation of the line that passes through the point (5, -2) and has a slope of -3?
A.
y = 3x - 13
B.
y = -3x - 13
C.
y = -3x + 13
D.
y = -x - 3
Answer:
y = -3x + 13
Step-by-step explanation:
y = -3x + 13 is the only formula there that has a slope -3 (as shown in -3x) and is the only one that passes through point 5,-2.
The equation of the line that passes through the point (5, -2) and has a slope of -3 will be y = - 3x + 13. Then the correct option is C.
What is a linear equation?A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.
The linear equation is given as,
y = mx + c
Where m is the slope of the line and c is the y-intercept of the line.
The slope of the line is given as,
y = -3x + c
The equation of the line is passing through the point (5, -2). Then we have
- 2 = - 3(5) + c
- 2 = - 15 + c
c = 13
The equation of the line that passes through the point (5, -2) and has a slope of -3 will be y = - 3x + 13. Then the correct option is C.
More about the linear equation link is given below.
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At the end of a party, 3/4 cup of dip is left. Jim divides 4/7 of the leftover dip equally between 2 friends. How much dip does each friend get?
Answer:
First, we need to find the amount of dip that was divided amount the two friends.
We know that it is 4/7 of the left dip
therefore:
amount divided among the two friends = (4/7) x (3/4) = 3/7 of the original amount of dip.
This amount is divided among two friends,
therefore:
amount that each friend gets = (3/7) / (2) = 3/14 = 0.2 of the amount of dip
tell me if this is completely wrong because i'm not good at this
Each friend will get 0.2 of the amount of dip.
What is an expression?The mathematical expression is the combination of numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also be used to denote the logical syntax's operation order and other properties.
Given that a the end of a party, 3/4 cup of dip is left. Jim divides 4/7 of the leftover dip equally between 2 friends.
First, we need to find the amount of dip that was divided amount the two friends. We know that it is 4/7 of the left dip
Amount divided among the two friends = (4/7) x (3/4) = 3/7 of the original amount of dip.
This amount is divided among two friends,
Amount that each friend gets = (3/7) / (2) = 3/14 = 0.2 of the amount of dip
Therefore, each friend will get 0.2 of the amount of dip.
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Please answer this question
B=3V/h
Solve for V
Answer:
V = [tex]\frac{Bh}{3}[/tex]
Step-by-step explanation:
Given
B = [tex]\frac{3V}{h}[/tex] ( multiply both sides by h )
Bh = 3V ( isolate V by dividing both sides by 3 )
[tex]\frac{Bh}{3}[/tex] = V
Beatrice threw a stone one and seven fourteenths yards. Tilly threw a stone nine fourteenths of a yard. What is a reasonable estimate of the difference between their two throws?
a. 1 yard
b. one and one half yards.
c. 2 yards
d. two and one half yards
Help me plzplzplzplz1
Answer:
The answer is 400 when you round it off to the nearest hundred.
tan y+cot y= sec y x csc y
prove the identity
(y is the variable)
Answer:
Step-by-step explanation:
tany+coty =
[tex]\frac{siny}{cosy} + \frac{cosy}{siny}[/tex]·
[tex]\frac{sin^{2}y + cos^{2}y }{cosysiny}[/tex]
[tex]\frac{1}{cosysiny}[/tex]
[tex](secy) (cscy)[/tex]
Which graph shows the solution to the system of inequalities?
y <= x + 2
y > 2x – 3
Answer:
b
Step-by-step explanation:
6
please help asap! please
Answer:
1) given
2) reflexive
3) converse isosceles triangle thm
4) isosceles triangle thereom
5)CPCT
Step-by-step explanation:
Some doctors recommend that men drink 3 liters of water every day. There are approximately 236.6 milliliters in 1 cup. Which measurement is closest to the number of cups in 3 liters?
Answer:
Thats a lot of water!
Brainlest-Pls help me pls thank you sm In advance
Answer: 90 divided by 45 equals 2 45+45=90
Step-by-step explanation:
Pretty easy please answer. 50 points and brainliest. If you spam you dont get anything.
Step-by-step explanation:
The independent variable is m the number of minutes a hose runs.
The dependent variable is g the number of gallons the hose sprays.
The number of gallons a horse sprays depends on the minutes the hose runs. Lets say the hose sprays a gallon in a minute. And let us say the hose runs for 5 minutes. That would mean the hose would have sprayed 5 gallons of water.
The minutes a hose runs does not depend on the gallons the hose sprays.
WILL MARK BRAINLIEST
Which products result in a perfect square trinomial? Select three options.
(negative x + 9)(negative x minus 9)
(x y + x)(x y + x)
(2 x minus 3)(negative 3 + 2 x)
(16 minus x squared)(x squared minus 16)
(4 y squared + 25)(25 + 4 y squared)
Answer:
(xy+x) (xy+x)
(2x-3) (-3+2x)
(4y2+25) (25+4y2)
Step-by-step explanation:
Thanks for the brainliest
Answer:
B, C, and E
Step-by-step explanation:
I need help will mark BRAINLIEST if right!!!!!!!!
Answer:
Line EH
it says I have to
Answer:
EH
Step-by-step explanation:
TRUST ME
A group of students was asked, "How many hours did you watch television last week?" Here are their responses: 9, 16, 11, 19, 4, 10, 15, 19
Answer:
So what's your Question.
I think The Mean ????
Step-by-step explanation:
So it is Add all the Values which is 103
Divide it by no. of Values which is 8
You'll get 12
Which is Mean !!!!
