Answer:
5x²+7x-4
Step-by-step explanation:
Given: (7x²+2x-1)-(2x²-5x+3)
Distribute: 7x²+2x-1-2x²+5x-3
Rearrange: 7x²-2x²+5x+2x-3-1
Combine like terms: 5x²+7x-4
Your final answer is thus 5x²+7x-4
If y=4x-5,what is the value of y when x is 7
Answer:
23
Step-by-step explanation:
y=4x-5
=4(7)-5
=28-5
=23
Y=4x-5
Input x=7
Y=4(7)-5
Multiple 4(7)
28-5
Sub 28-5
FINAL ANWSER IS 23
2+3=8,
3+7=27,
4+5=32,
5+8=60,
6+7=72,
7+8=??
Answer:
98
Step-by-step explanation:
Can someone help please
Answer:
14.5 units
Step-by-step explanation:
we need to find the length of the rectangle. To do that, we must find the hypotenuse of the right triangle below the rectangle.
Finding the hypotenuse of a right triangle uses the Pythagorean theorem, or a² + b² = c²
let a be 9 and b be 7.
9² + 7² = c²
81 + 49 = c²
130 = c²
√130 = c
c = approx. 11.4
Now, we know the length of the rectangle.
Once a rectangle is cut diagonally, it forms 2 equal right triangles. We will use the same process to find the hypotenuse of the second right triangle.
9² + 11.4² = c²
81 + 130 = c²
81 + 130 = approx. 211
c² = 211
√211 = c
c = approx. 14.5
A car salesperson makes 25% commission on each car sold. If the salesperson just sold a vehicle for $42,000, how much in commission was made?
Answer:
$10500
How I Found This Answer:
$42000 ÷ 4 = $10500
Hope This Helps.
if two angles are supplementary and one angle is 75 degrees what is the measure of the other?
Answer:
105 degrees
Step-by-step explanation:
supplementary angles equal 180 so 180-75=105
what is the slope help pls?
Answer:
y=7x-6
Step-by-step explanation:
You would first pick two coordinates in this case would be ( 0, -6), (1,1). You would find your slope by using the formula y2-y1/x2-x1. Which would give you a slope of 7/1 which is equal to 7. Then you would use point slope formula which is y-y1=m(x-x1). would would plug in the numbers and it would say
y-(-6)=7(x-0). Then you would simplify the y-(-6) which would be y+6 then you would distribute the 7. Your whole equation would look like y+6=7x+0. Then you would use inverse operations and subtract -6 from the left side of the equals and subtract it from 0 giving you -6. Therefore your whole equation would be y=7x-6. Hoped this helped.
Solve using the Zero-Product Property
(x - 11)(5x + 1) = 0
Show your work or not.
Step-by-step explanation:
third and the yellow one will be the answer
x=11,X=-1/5
CAN SOMEONE PLEASE HELP ME ON THIS PLEASE SHOW THE WORK I REALLY JUST NEED ANYONE BRO TO BREAK IT DONE FOR ME
Answer:
I geuss we'll neva know
*cues music*
Step-by-step explanation:
Bill bought a table on sale for $630. This price was 72% of the original price.
What was the original price?
Answer:
The original price was $875.
Step-by-step explanation:
a = p * w
630 = 72% * w
630 / 0.72 = $875
$875 should be the original price, I hope this helps!
8. Your doctor records your height x (in inches) and your weight y (in
pounds) each time you have a medical exam.
Is this a function?
At Paulson Middle School, 75% of the sixth grade class is making a B or higher. If there are 21 students
making a B or higher, then how many students are in the class?
Answer:
28 students
Step-by-step explanation:
x = Number of students
21 students = 75 percent of x = 3/4 x
3/4 x = 21
x = 21 * (4/3) = 7*4 = 28
Answer:
About 16
Step-by-step explanation:
an item sells for 40$. thr sales tax on the item is 8%. what is the sales tax and total cost
Net Amount (excluding tax)$40.00
Tax (8.0%)$3.20
Gross Amount (including tax)$43.20
I need this answer asap
Answer:
247
Step-by-step explanation:
What is the value of (x)
Answer:
x = -2
Step-by-step explanation:
12 + x = 10
x = 10 - 12
x = -2
Answer:
X=-2 12+(-2)=10
12-2=10
10=10
A flower garden is circular. The diameter of the garden is 20 feet. Which is the closest to the total area of the garden?
Answer:
40
Step-by-step explanation:
The total area of the garden is 31.75 sq meters
The first step is to calculate the radius if the circle
The diameter of the garden is 20 feet
2π × radius= 20
2π × 3.14= 20
6.28π= 20
π= 20/6.28
π= 3.18
The area of the flower garden can be calculated as follows
= π × radius²
= 3.14 × 3.18²
= 3.14 × 10.1124
= 31.75 sq meters
Hence the total area of the garden is 31.75 sq meters
Please see the link below for more information
https://brainly.com/question/21760828?referrer=searchResults
i like boys
the subject is your mom
Answer:
i like woman
Step-by-step explanation:
the subject is your dad
6
7
8
Y
U
O
Р
HIK
Help please :)
Answer:
oojjojojojo
Step-by-step explanation:
gjj h 7/4 to the third power Chelsea is making a kite in the shape of a triangle. To determine if the triangle is a right triangle, Chelsea completed the following steps.
Step 1:
Find the side lengths of the triangle: 30 inches, 24 inches, 18 inches.
Step 2:
Substitute the values into the Pythagorean theorem: 18 squared + 24 squared = 30 squared.
Step 3:
Combine like terms: (18 + 24) squared = 30 squared.
Step 4:
Evaluate each side: 1764 not-equals 900.
Chelsea says the triangle is not a right triangle. Which best describes the accuracy of her explanation?
The triangle is actually a right triangle. In step 2, Chelsea incorrectly substituted the values into the Pythagorean theorem.
The triangle is not a right triangle, but in step 2 Chelsea incorrectly substituted the values into the Pythagorean theorem.
The triangle is actually a right triangle. In step 3, Chelsea incorrectly rewrote the expression on the left side of the equation.
The triangle is not a right triangle, but in step 3, Chelsea incorrectly rewrote the expression on the left side of the equation.
PLSS HELP ASAP!! I WILL GIVE YOU BRAINLYEST!!ONLY ANSWER IF U KNOW HOW TO!!
What is the difference between how you find the surface area of rectangular
prisms and how you find the surface area of triangular prisms? (write in complete sentences)
Please help me with the question please ASAP ASAP please please ASAP please please help
Angle 1 - 60 degrees
Angle 2 - 30 degrees
Angle 3 - 60 degrees
Angle 4 - 30 degrees
Hope this helps! :)
Find the slope of the line that passes through the two points.
(10.1) and (7,7)
Answer:
m = -2
Step-by-step explanation:
I believe that you meant (10, 1) and (7, 7) because otherwise I wouldn't be able to answer it.
So y2-y1/x2-x1 is your equation
First plug in the numbers
7-1/7-10
6/-3
-2
Therefore, m = -2
Which equation is a linear equation?
y=2x2+3
y=2/x+3
y=2x+3
y=2x+3
The mathematics department has just received a $200000 donation. The department wants to invest in an annuity so that they can gove a prize every month to its most improved math student for next 15 years. The bank is offering 4.5% compounded monthly. What would be the size of the department’s monthly prize offered?
Posted this question 1000times plz someone answer, i beg plz help
Question about financial application functions
Plz help me with this question ASAP( being timed)
Plz show all working
Thank you so much God bless you
PLZ HELP i jus want answer
Answer:
B. midpoint
Step-by-step explanation:
UT is located in the middle of UT as the lengths of ST and US are equal
7/8 b - 2 b + 4 C where a equals -3 b equals 5 C equals 6
Answer:
18.375
Step-by-step explanation:
(5x^4y^7)(6x^2y)= ?I don't know how to do this I need step by step
Answer:
y7
Step-by-step explanation:
Answer:
Step-by-step explanation:
Group like terms:
(5x⁴y⁷)(6x²y) = 5·6x⁴x²y⁷y
= 30x⁴⁺²y⁷⁺¹
= 30x⁶y⁸
help...................
Answer:
I'm so sorry I don't know this
Answer:
i did it.look at this once
How many solutions are shown by the graph of the quadratic function? A zero B one C two D three
A solution to a quadratic is the same as the root or x intercept (when talking about real numbers). The graph shows that we have exactly one x intercept, which is where the parabola touches the x axis. So we have one root.
Triangle One or Triangle Two, which one is a right triangle?
Explain how you know.
Answer:
The first triangle is because right triangles are tilted on a 90 degree angle
I need helpppp
Find the value for y when x =2: y= 2x+5
Answer:
y = 9
Step-by-step explanation:
Pls Help me I’ll give brainliest
Answer:
3. 6/10 9/15 4. 62.5/100 0.625 5. 6/25 %24 6. 0.62 %62
Step-by-step explanation:
You have to find two numbers that would also be quivilant to whatever number. Please mark branliest.