Answer:
-3s^2+16s-7
Step-by-step explanation:
-3s(s - 10) + 7(-2s -1) --> (-3s^2+30s)+(-14s-7) ---> -3s^2+16s-7
DO multiplication them convert like terms
Answer:
-3s² + 16s - 7
Step-by-step explanation:
Remember to follow FOIL. FOIL stands for (First, Outside, Inside, Last).
First, distribute -3s to s and -10, and 7 to -2s and -1:
-3s(s - 10) = -3s² + 30s
7(-2s - 1) = -14s - 7
Next, combine like terms:
-3s² + 30s - 14s - 7
-3s² + (30s - 14s) - 7
-3s² + 16s - 7
-3s² + 16s - 7 is your answer.
™
5 2/5 divided by 9/10
Answer:
Step-by-step explanation:
5 2/5 = [(5*5)]+2 / 5 = (25+2) / 5 = 27/5
(27/5)/(9/10) = 27/5 * 10/9
cross cancel 27 becomes 3 and 9 becomes 1, 5 becomes 1 and 10 becomes 2
= 3/1 * 2/1 = 6/1 = 6
What is the equation of the line that passes through the point (-8,-6) and
has a slope of 1/4
Answer:
y = 1/4x -4
Step-by-step explanation:
Since you know that that slope int. equation is y = mx+b, and the m is the slope just plug in the slope in the equation. So it will be y = 1/4x + b.
Then what you will do is solve for b in the equation. So what you do is plug in the x and y value from the coordinate given in the equation, so it will be like this: -6 = 1/4(-8) +b
-6 = -2 +b
-4 = b
b = -4
So then you plug back the b value into the equation with slope to wtite the equation. So it would be, y = 1/4x -4
help please, i don’t get this question .
what is the equation of the following? Someone could help me to understand this? thank you
Answer:
y=(1/5)x
Step-by-step explanation:
First, we must find the slope of the line.
The slope of a line can be found using the formula: (y2-y1)/(x2-x1)
(3-0)/(15-0)
(3)/(15)
1/5
The slope is 1/5.
Next we find the y-intercept, or where the line crosses the y-axis. In this case, the y-intercept is 0.
This gives us the equation: y=(1/5)x
Let me know if this helps!
14.2 is 35.5% of what number w?
Find x, the height of the tree. (Decimal Answer)
Answer:
i think it is 15.9 but that is only if the two triangles are congruent
Step-by-step explanation:
cuál es el resultado de 1/3 + 5/6?
Answer:
it will be 1 1/6 or 7/6
Step-by-step explanation:
Hope this helped
Which of the following is a reflection of ( 2,4 ) across the x-axis?
a -2, 4
b 2, -4
c 4, 2
d -2, -4
Answer:
(2,-4)
Step-by-step explanation:
(2,4) is located in Quadrent I (+,+), if you reflect over the x-axis, it would be in Quadrent IV (+,-).
if you dont understand I suggest you draw a coordinate plane on a graphing notebook.
This is my last 8th grade problem, again if you know the answer please interact :)
Answer:
same slope
parallel lines
Step-by-step explanation:
pls help ;/ not hard btw
Simplify the following and write with positive exponents:
5z-5(3z)-2
Answer:
[tex] - 10z - 2[/tex]
Step-by-step explanation:
this is simplify
helppp asap pleaseeeeee
12. Sydney Star bought a new sweatshirt for $42.00. Sales tax was 8%.
After tax, what was the total cost she paid for the sweatshirt? *
$8.00
$38.64
$3.36
$45.36
Answer:
$45.36
Step-by-step explanation:
100 + 8 = 108
42/100 X 108 = 45.36
100 + 8 = 108
42/100 X 108 = 45.36Convert: 16 c =________gal
Answer:
16 cups is 1 gallon
Step-by-step explanation:
because there are 16 cups in a gallon
Tori has already jarred 1 liter of jam and will jar an additional 1 liter of jam every day. How
many days does Torì need to spend making jam if she wants to jar 10 liters of jam in all?
Answer:
9 days.
Step-by-step explanation:
We first subtract the amount already done from the total needed.
10 - 1 = 9.
Next, we take the remainder and divide it by the amount being made per day to get our final answer.
9 / 1 = 9.
The answer is 9 days.
if 3x =9 what is x ?
Answer:
3
Step-by-step explanation:
All you have to do is divide 9 by 3 and you get 3!
I hope this helps, and have a great day! :)
the answer is 3 hope this helped
Kristin bought a snowboard for $60. The sales tax rate for the snowboard is $0.04 for every dollar spent. How much did Kristin pay in all for the snowboard?
Evaluate the following expression: 8x - 6 - 7y + 3 use x=3 and y=6
Answer:
-27
Step-by-step explanation:
8x - 6 - 7y + 3
X = 3 Y = 6
8(3) - 6 - 7(6) + 3
8 x 3 = 24
7 x 6 = 42
24 - 6 - (42 + 3)
(24 - 6) - 45
18 - 45 = -27
If the mLD = 3x - 8 and mZL = 2x + 17, find the
value of x that would make ZDE ZL.
Answer:
x = 25
Step-by-step explanation:
For ∠ D and ∠ L to be congruent, then
3x - 8 = 2x + 17 ( subtract 2x from both sides )
x - 8 = 17 ( add 8 to both sides )
x = 25
The net of a triangular prism is show below.Find the rotal surface area of the triangular prism 4.6,4,5,15
Answer:
228.4cm²
Step-by-step explanation:
Find the diagram attached
Total surface area of the prism = Ph + 2B
P is the perimeter of the base (triangle)
h is the height of the prism
B is Base area
P = 5cm + 5cm + 4cm
P = 14cm
h = 15cm
B = 1/2 * base * height
B = 1/2 * 4.6 * 4
B = 4.6 * 2
B = 9.2cm²
Substitute the values into the formula;
Total surface area of the prism = Ph + 2B
Total surface area of the prism = 14(15)+2(9.2)
Total surface area of the prism = 210 + 18.4
Total surface area of the prism = 228.4cm²
Hence the total surface area of the triangular prism is 228.4cm²
Need help on this please help
Answer:
280m³
i hope this is help for you
Divide. Enter the quotient in simplest form.
9/10 divided by 3/8
PLz, help I really don't understand these problems at all.
Click here to see the screenshot
Answer:
1. $65,000
2. A 4 and 2 mile hike
3. B 4.00
4. C multiplication
Step-by-step explanation:
a quadratic function that fits the points (0,5) (2,3) (4,9)
Answer:
Step-by-step explanation:
y=ax^2+bx+c we are given point (0,5) so if x=0, y=c, so c=5. We have two other points
(2,3)(4,9) which gives us
4a+2b+5=3 and 16a+4b+5=9
Subtracting twice the first from the second
16a+4b+5-8a-4b-10=9-6
8a-5=3
8a=8, so a=1, so using 4a+2b+5=3 we get
4(1)+2b+5=3
2b+9=3
2b=-6
b=-3 so our quadratic is
y=x^2-3x+5
Need Help 20 points plz.
9514 1404 393
Answer:
the correct choices are shown
Step-by-step explanation:
Statement . . . . . Reason
1. c ║ d; ∠4 = ∠5 . . . . . Given
2. ∠4 = ∠7 . . . . . Alternate interior angles are equal
3. ∠5 = ∠8 . . . . . Vertical angles are equal
4. ∠7 = ∠8 . . . . . Substitution
Somone pls help if your good at math I’ll mark brainliest
Answer:
x=5
Step-by-step explanation:
(x--3)²+(4--2)²=10²
(x+3)²+36=100
(x+3)²=64
(x+3)²=8²
x=5
i need help like really bad
Answer:
A
Step-by-step explanation:
14/15 is less than 7/5
Answer:
dang me too I'm like almost failing
the measure of b is?
Answer:
35.228
Step-by-step explanation:
Answer:
b=21
Step-by-step explanation:
For this problem we need to use Pythagorean theorem (a^2+b^2=c^2):
20^2+b^2=29^2
Simplify the squares:
400+b^2=841
Subtract 400 from both sides:
b^2=441
Take the square root of both sides:
b=21
HTH :)
Which one is longer?
Aslinky that is 26 inches long
Bslinky that is 2 feet long
C they are equal
Answer: A.
Step-by-step explanation:
Slinky A is 26 inches there are 24 inches in two feet so slinky B isn’t longer. Then they are obviously not equal because we figured out they have different lengths
HURRYYYYY
What does "Slope-Intercept Form" look
like?
Xb+c=y
y = mx + b
y2 - 71
X2 - X1
AX + By = 2
Answer:
y=mx+b
Step-by-step explanation:
the second answer
Please help right now why no one is answering me
Answer:
(0,0) .......................
