Answer:
-4
Step-by-step explanation:
first remove the parentheses
5-4-7+2
then calculate the sum or difference
-4
. A customer at a store paid $42 for 4 pairs of pants and 3 shirts. At the same store, a
second customer paid $2 more for 1 pair of pants and 7 shirts. The price of each pain
of pants is the same, and the price of each shirt is the same.
-Which system of equations can be used to find the price in dollars of each pair of
pants, x, and each shirt, y?
Answer:
A
Step-by-step explanation:
Write the equation of the line that passes through the points (0, -3) and (-4,1).
Put your answer in fully reduced point-slope form, unless it is a vertical or horizontal
line.
Step-by-step explanation:
I'm going to explain this in standard slope intercept form (y=mx+b) because it is easiest for this situation. I will also include converting it to point slope form. I will also show how to do straight into point slope form if you find that more helpful.
First thing is to identify difference in x and y in both points. From point 1 to point to, the x changes -4 and the y changes +4. We can rapresent this in rise over run fraction
[tex] \frac{4}{ - 4} = - 1[/tex]
So the slope is -1 because the slope is the simplified rise over run fraction.
Our next step is to find the y-intercept. This is easy because the first point is the y-intercept, so -3 is our y-intercept.
Now we know the equation.
[tex]y = - x - 3[/tex]
All we have to do now is convert it into point-slope form. So here is point slope form: y + y1 = m(x + x1). Y1 is the y-intercept and m is the slope.
[tex]y - 3 = - 1(x + x1)[/tex]
So x1 is the x intercept, so to find this you find the x value when y is 0. You can do this by using the standard form I've done because it is easiest.
[tex]0 = - x - 3 \\ x = - 3[/tex]
So when y is 0, then x is -3. Here is the complete point slope form of the line.
[tex]y - 3 = - 1(x - 3)[/tex]
-----------------------------------------------------
To put the line directly into point slope for you need to find the slope, y-intercept, and x-intercept and place the values in accordingly. If you aren't given the y-intercept and x-intercept straight away it can be difficult for some putting it directly in point slope form. That is why I recommend putting it into standard form then point-slope form.
Answer:
y=-1x-3
Step-by-step explanation:
First, you have to find the slope using the formula I attached. Using this formula, you will subtract the second y from the first y, which is 1-(-3) for this problem. That equals 4, so that will be the numerator of the slope. Next, you have to subtract the second x from the first x, which is -4-0 for this problem. That equals -4, so that will be the denominator for this slope. the fraction now is [tex]\frac{4}{-4}[/tex], which is -1. The slope is -1. The current equation looks like this: y=-1x+b. Now we can solve for b, or the y-intercept. To do this, you have to use the x and y of one of the coordinates, it doesn't matter which one, the answer will be the same. Use the first one, for example. The x is 0 and the y is -3, so the our equation to find b is -3=-1(0)+b, which is -3=0+b, which is -3=b, or b=-3. So now we know what b is. Now we have to two components we need to write the equation, the slope (-1) and the y-intercept (-3). Now we can write the equation. y=-1x+(-3), or y=-1x-3.
find the missing side
C=
Answer:
C = 10
Step-by-step explanation:
[tex]A^{2}[/tex] + [tex]B^{2}[/tex] = [tex]C^{2}[/tex]
[tex]6^{2}[/tex] + [tex]8^{2}[/tex] = 100
[tex]\sqrt{100}[/tex] = 10
Answer this question and if right ill make branilliest
Answer:
I think that removing (1, 3) would make the most sense
Answer:
(1,3)
Step-by-step explanation:
Because (1,-2) and (1,3) have the same x value, they do not pass verticle line test, so it is not a function.
Give an example of an equation that is a linear function. Explain why is is a linear
Answer:
For example, a common equation, y=mx+b y = m x + b
Step-by-step explanation:
is a linear function because it meets both criteria with x and y as variables and m and b as constants.
Question 7
1 pts
Mike purchased a car worth $18,000 in the year 2008. It loses its value by 6% per
year. What is the value of the car in 2020? Round your answer to the nearest whole
dollar, and do not enter any decimals or commas.
$
Need some help
Answer:
I'm pretty sure that'd be 8567
A football team loses 8 yards each quarter of the game. How many yards did they lose in a 4 quarter game?
32
-32
12
-12
Answer:they lost 32 yards
Source: trust me bro
Answer:
The awnser is -31 trust me ok i Got it wrong it showed me the awnser so its -31
Step-by-step explanation:
i need help asap !!
Answer:
Solving the expression [tex]\frac{\sqrt[3]{7} }{\sqrt[5]{7} }[/tex] we get [tex]\mathbf{7^{\frac{2}{15}}}[/tex]
Option D is correct option.
Step-by-step explanation:
We need to solve the expression: [tex]\frac{\sqrt[3]{7} }{\sqrt[5]{7} }[/tex]
We know that
[tex]\sqrt[3]{x}=x^{\frac{1}{3}[/tex] and [tex]\sqrt[5]{x}=x^{\frac{1}{5}[/tex]
Using above rule:
[tex]\frac{\sqrt[3]{7} }{\sqrt[5]{7} }\\=\frac{7^{\frac{1}{3}}}{7^{\frac{1}{5}}}[/tex]
Now, we know the exponent rule if bases are same and divided then exponents are subtracted i.e: [tex]\frac{a^m}{a^n}=a^{m-n}[/tex]
Using the exponent rule
[tex]=7^{\frac{1}{3}-\frac{1}{5} }\\Simplifying\:exponents\\=7^{\frac{5-3}{15}}\\=7^{\frac{1*5-1*3}{15}}\\=7^{\frac{2}{15}}[/tex]
So, solving the expression [tex]\frac{\sqrt[3]{7} }{\sqrt[5]{7} }[/tex] we get [tex]\mathbf{7^{\frac{2}{15}}}[/tex]
Option D is correct option.
How do I figure this out?
can someone please help me i dont know how to do it.
Зr - 7 = 11
What is the answer
Identify the correct definition of the term. Angle
Answer:
In geometry, an angle can be defined as the figure formed by two rays meeting at a common end point. An angle is represented by the symbol ∠. ... Angles are measured in degrees, using a protractor.
Step-by-step explanation:
The price of a bicycle was decreased by 40% to £96. What was the price before the decrease?The price of a computer was decreased by 20% to £420. What was the price before the decrease?
What is 0.00015 in scientific notation?
Answer:
1.5 * 10^(-4) is the scientific notation.....
Simplify. Use a horizontal format.
(-2y2 - 4y - 11) + (4y2 - 4y)
Which of the following tables could possibly
represent the graph?
х
y
-2
-4
A)
B)
х
-2
-1
-1
-1
WOWOK
0
2
1 5
х
Y
1
3
.X
0
1
2
3
4
C)
2
1
D)
3
3
10
g(x)
17 | 24 | 31
38
4
-3
Answer:
D.)
Step-by-step explanation:
The graph is decreasing from left to right therefore as the x values increases the y values are decreasing. You can also say that the graph has a negative slope.
Write an equation for the lines shown.
Black line: y=-3x+2
Blue line: y=-3x+8
Answer:
blue line: y=3/-1x+8
black line: y=3/1x+2
Step-by-step explanation:
what is decimals -4.8(5.3)
Answer:
-25.44
Step-by-step explanation:
There are 16 forwards and 40 guards in Leo's basketball league. Leo must include all players on a team and wants each team to have the same number of guards. If Leo creates the greatest number of teams possible, how many guards will be on each team?
List the multiples of each number:
16: 1, 2 , 4, 8 , 16
40: 1, 2 , 4 , 5, 8, 10, 20, 40
The greatest common multiple is 8
40 guards / 8 = 5
There will be 5 guards on each team.
Find the square root of -36.
A-6
B 6
C Cannot be done
Answer: C) Cannot be done
Taking the square root of a negative number is not possible unless you involve complex numbers. If your teacher has not introduced that topic yet, then you just simply say "cannot be done" or something along those lines.
What is the square root of 48?
Answer:
6.92
Step-by-step explanation:
Evaluate the question and simplify
The answer is 11.
Step-by-step explanation:
19-25\19-15
44/4= 11
Naomi's square bedroom has an area of 90 square feet. What is
the length of one of the walls? Round to the nearest tenth if
necessary.
A) 9.0 feet
B) 9.5 feet
C) 22.5 feet
D) 45.0 feet
Answer:
9.5 feet
Step-by-step explanation:
According to the question
The equation is
x²=90
x=√90
x=3√10 or 9.5
Answer:
9.5 Ft
Step-by-step explanation:
:)
Find the slope of the line passing through the points (-5,7) and (-5,-9)
Acell phone weighs about 2.8x 10" pounds. Which value of n is most reasonable?
O1
Answer:
write in algorithm and draw a flowchart to calculate the factorial of a number (N). verify your results by a trace table by assuming N=5
Simplify the expression by combining like terms 2x+8-x+10
Answer:
x+18
Step-by-step explanation:
Let's simplify step-by-step.
2x+8−x+10
=2x+8+−x+10
Combine Like Terms:
=2x+8+−x+10
=(2x+−x)+(8+10)
=x + 18
Simplify the following expression:
-10w + 3 + 12j
Answer:
=12j−10w+3
Step-by-step explanation:
can you tell me how to solve this problem using substitution step by step?
y = -2x - 9 and 6x - 5y = - 19
Answer:
x = -4
Step-by-step explanation:
The first equation tells us what y is equal to. We then substitute wherever there is a y with what y equals.
y = -2x - 9
6x - 5y = -19
6x - 5(-2x-9) = -19
6x + 10x + 45 = -19
16x + 45 = -19
16x = -64
x = -4
Arun's restaurant bill is $58, and he wants to leave the waiter an 18 percent tip. What will Arun's total be?
Answer:
47.56 $
Step-by-step explanation:
I plugged it in my calc
Help meh. plssss. I need thisssss. PLEASE.
Im pretty sure the unit rate would be 50 mph!
Answer:
50
Step-by-step explanation:
You look at the graph, when x is one it intercept in the middle of 75 and 25, and that is 50