Answer: 85%
Step-by-step explanation:
17*5= 85%
(5*20=100%; 5*17=85%)
what is 6.9 times 10^-2 in standard form? thanks :)
Answer:
0.069
Step-by-step explanation:
6.9 ×10^-2
69/1000
0.069
Answer the question pls
Answer:
f=54
Step-by-step explanation:
ma is m times a 3x18= 54
Answer:
F = -54
Step-by-step explanation:
You plug in the numbers that you can
so.. F = ma -ma= m * a
M= 3
a = -18
F = 3* (-18)
because there is one (-) number and you are multiplying your answer is going to be (-)
F= -54
The temperature in February was at most 6°F. Use t as your variable.
Answer:
t ≤ 6°F
The temperature(t) was less than or equal to 6°F.
Please help!
(Vieta's Formulas) Let [tex]r[/tex], [tex]s[/tex], and [tex]t[/tex] be solutions to the equation [tex]$2x^3 - 3x^2 + 4x - 1 = 0$[/tex]. Find [tex]$r^2+s^2+t^2$[/tex].
Please include an explanation as well :)
We are given the polynomial:
2x³ - 3x² + 4x - 1 = 0
We need to find the value of r² + s² + t² where r,s,t are the solutions.
Simplifying r² + s² + t²:
r² + s² + t² = (r + s + t)² - 2(rs + st + rt)
[since a²+b²+c² = (a+b+c)² - 2(ab + bc + ca)]
Using the Vieta's formulae:
Above, we can see that in order to find the value of r² + s² + t², we need to find the value of the sum of solutions and sum of solutions taken 2 at a time.
Sum of roots:
We know that the Vieta's formula to find the sum of roots is:
Sum of roots = [tex]-\frac{b}{a}[/tex]
Where b and a are the coefficients from the general form: ax³ + bx² + cx - d
We notice that for the given equation, b = -3 ; a = 2
Sum of roots = [tex]-(\frac{-3}{2})[/tex]
Sum of roots = [tex]\frac{3}{2}[/tex]
Hence, the sum of roots (r + s + t) = 3/2
Sum of roots taken two at a time:
We know that the Vieta's formula to find the sum of roots taken 2 at a time is: Sum of roots taken 2 at a time = [tex]\frac{c}{a}[/tex]
Where c and a are the coefficients from the general form: ax³ + bx² + cx - d
for the given equation, c = 4 ; a = 2
Sum of roots taken 2 at a time = [tex]\frac{4}{2}[/tex]
Sum of roots taken 2 at a time = 2
Hence, the sum of roots taken 2 at a time (rs + st + rt) = 2
Finding the value of r² + s² + t²:
We proved before that:
r² + s² + t² = (r + s + t)² - 2(rs + st + rt)
now that we know the values of (r + s + t) and (rs + st + rt), we can plug those values to get our answer
r² + s² + t² = ([tex]\frac{3}{2}[/tex])² - 2(2)
r² + s² + t² = ([tex]\frac{9}{4\\}[/tex]) - 4
r² + s² + t² = [tex]\frac{9 - 16}{4\\}[/tex]
r² + s² + t² = [tex]\frac{-7}{4}[/tex] = -1.75
Hence, the value of r² + s² + t² is -1.75
Help pls and thanks :)
(Are the two triangles similar? Explain, step by step, how you know. )
Answer:
The two triangles can be considered similar as Angle A is 70 degrees and Angle B is a congruent angle to Angle A, which can be proven by adding 70 to 110 which shows a 180 degree angle (flat angle). Therefore we know that this triangle is similar
Step-by-step explanation:
PLS HELP I WILL DO ANYTHING
Answer:
the solution for x is x=40
An ice cube tray has 12 sections. Each section has the shape of a 3 m cube. What is the volume of water used to fill the tray?
Answer:
324 m³
Step-by-step explanation:
each cube = 3x3x3 = 27 m³
27 m³ 12 = 324 m³
Are these triangles similar? explain why did you pick yes or no.
10,000-99 what does it mean and what does it add up to i am confused
Rewrite using Radicals
Answer:
cannot be put into radical form, sorry!
Step-by-step explanation:
what is 3 (2х-5) 2х+3=1
3(2x-5)+2x+3=1
6x-15+2x+3=1
8x-12=1
+12 +12
8x=13
/8 /8
x=1.625
---
sorry if this doesn't help
Please help! Thank you! :))
PLEASE HELPPP! I have to solve for X, this was my warmup but I'm not smart and I need to turn it in today!
Answer:
X=8
Step-by-step explanation:
48+22=70
4×8=48
so X is 8
What inequality is represented by this graph?
+
1 2
+
g
02
4 5 6
Ox>6
Ox<6
0 x
O XC6
07:26
What is the base of the triangle? Pls I need it ASAP
Answer: 10 I think not sure
Step-by-step explanation: 1/2 base times height-> 1/2(6•10)
What is 190% of 69.70?
Answer:
[tex]\huge\boxed{132.43}[/tex]
Step-by-step explanation:
= 190 % of 69.70
[% means out of 100 and "of" means to "multiply]
= [tex]\displaystyle \frac{190}{100} * 69.70[/tex]
= 1.9 * 69.70
= 132.43
[tex]\rule[225]{225}{2}[/tex]
Hope this helped!
~AH1807Answer:
132.43
Step-by-step explanation:
Calculate the percentage of a number.
For example: 190% of 69.70 = 132.43
I need this answer ASAP! Please help!
A ladder is leaning against a building. The ladder forms an angle of 77° with the ground. The distance from the base of the ladder to the base of the building is 8 feet.
Answer:
Step-by-step explanation:
sin77=h/8
h=8sin77
h=8(0.9744)
h=7.7952ft
Solve each equation.
d(d+3)-d(d-4)=9d-16
Answer:
2d+3d-2d+4d= 9d-16
2d is cancelled
3d+4d=9d-16
7d=9d-16
16=9d-7d
16=2
16/2
d=8
PLS HELP PLSSSSS PLSSSSSS PLSSSSSSSS PLSSSSSSSSSSSSSS HIRRRYYYYYYYYYYYYYYYYYYYYYYYY
Answer:
74
Step-by-step explanation:
the top two are 5 cm each angled sides and it completely added up to 74
Evaluate using P E M D A S 2 x 3 + 4
Step-by-step explanation:
We would do multiplication first, because of order of operations.
2x3=6
Now we add.
6+4=10
hope it helps! :3
What is 2x+7y=28 in slope intercept form
Answer:
y = -2/7x + 4
the distance between a number and 2 on the number line.
What is the other number and do you have like a picture
Express 12 as a sum, a difference, a product, and a quotient.
If x=−5, what is the value of 7−x(2x+1)?
Answjnweijfbiqwerf
Step-by-step explanation:
A farmhouse shelters 16 animals, some are pigs, and some are ducks. Altogether there are 42 legs. How many pigs are there?
Answer:
5 pigs
Step-by-step explanation:
A farmhouse shelters 16 animals, some are pigs, and some are ducks. Altogether there are 42 legs. How many pigs are there?
Let us represent:
Number of pigs = x
Number of ducks = y
Our system of equations is given as:
A farmhouse shelters 16 animals, some are pigs, and some are ducks.
x + y = 16...... Equation 1
x = 16 - y
Altogether there are 42 legs.
Ducks have 2 legs(feet) , pigs have 4 legs,
4x + 2y = 42..... Equation 2
We substitute
16 - y for x in Equation 2
Hence:
4(16 - y) + 2y = 42
64 - 4y + 2y = 42
Collect like terms
- 4y + 2y = 42 - 64
-2y =- 22
y = -22/-2
y = 11 ducks
Solving for x.
x = 16 - y
x = 16 - 11
x = 5 pigs
Therefore, we have 5 pigs
Solve for XSolve for X
Solve for X
Solve for X
Solve for X
Solve for X
Solve for X
Answer:
Step-by-step explanation:
Because the angles are opposite each other they are equal so we can say
4x-25=75
4x=100
x=25
x= 25
4x -25 = 75 ( vertically opposit angle)
4x = 100
x = 100/4
x= 25
angle = 75
hope it helps
You are walking to the park and see several children and dogs running around. You count 19
heads and 52 legs. How many children did you see? How many dogs did you see?
Answer:
13 dog's and 6 children
Step-by-step explanation:
3a²b3(-4b3 + 2b2a - 7) =
Answer:
the answer is =6a^3b^5−12a^2b^6−21a^2b^3
Step-by-step explanation:
hoped I helped:)
Anybody know ? Need help
Answer:
it is D) consecutive interior
Step-by-step explanation:
Pls help this is due in 20 min
Answer:
y=100
Step-by-step explanation:
180-50=130
130-30=100