Answer:
w = 10
Step-by-step explanation:
6w+18-9w = -12
Combine like terms
-3w + 18 = -12
Subtract 18 from each side
-3w +18- 18 = -12 -18
-3w = -30
Divide each side by -3
-3w/-3 = -30/3
w = 10
Answer:
w = 10
Step-by-step explanation:
6 w + 18 - 9 w = - 12
combine like terms
6 w - 9 w + 18 = - 12
- 3 w + 18 = - 12
subtract each side by 18
- 3 w + 18 - 18 = - 12 -18
- 3 w = - 30
Divide each side by - 3
- 3 w / - 3 = - 30 / - 3
w = 10
What would the equation be if the points were 6,18 and -12,3
Answer:
[tex]y=\frac{15}{18} x+13[/tex]
Step-by-step explanation:
Use a graphing calculator,
hope it helps
Solve for x Log2 x=-5
Suppose the population of a small town is 567 in 2011. The population DECREASES at a
rate of 5% every year. What will be the population of the town in 2021? Round your answer
to the nearest whole number.
Answer:
2011: 567 2012: 567*(1-.015) 2013: 567*(1-.015)*(1-.015) 2014: 567*(1-.015)567*(1-.015)*(1-.015) you see the pattern; and, if so, you can build an little equation giving you the answer
Answer:
339
Step-by-step explanation:
a = 567 (.95)¹⁰
a = 339.4838445482
Rounded
339
Someone PLEASE HELP!!!!! it’s urgent please help ASAP
The line the puck traveled is the hypotenuse of a right triangle.
Using the Pythagorean theorem:
Travel = sqrt( 4^2 + 30^2)
Travel = sqrt( 16 + 900)
Travel = sqrt(916)
Travel = 30.265 feet ( round the answer as needed)
A projectile is fired straight upward from the Earth's surface with an initial speed of 33.3m/sec. What is it's speed after 2.8secs?
Answer:
let's write it as an equation
speed in m/sec (s) = 33.3 -9.81s
speed in m/sec (2.8) = 33.3 -9.81*2.8 = 5.832
9.81 is the deceleration due to earth's gravity.
the speed changes that ammount per second.
ANSWER ASAP
What are the solutions of the quadratic equation 2x2 - 4x = 3?
Answer:
option c
Step-by-step explanation:
2x² - 4x = 3
2x² - 4x - 3 = 0
a = 2, b = - 4, c = -3
[tex]x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a} \\\\x = \frac{4 \pm \sqrt{16 + 24 }}{4} \\\\x = \frac{4 \pm \sqrt{40}}{4} \\\\x = \frac{4 \pm \sqrt{4 \times 10} }{4} \\\\x = \frac{4 \pm 2\sqrt{10} }{4} \\\\x = 1 \pm \frac{\sqrt{10}}{2}[/tex]
PLEASE HELP ASAP, THIS IS A TIMED MATH QUESTION!!!
I'LL MARK BRAINLIEST FOR CORRECT ANSWERS!
I just want to make sure or is it b?
I need help like really bad in the next 10 mins or I fail math please help me-
Answer:
5(×) - 3(×)
5(²) - 3(²)
25 - 9
16
Find the range of the graphed function.
10
10
M
-101
O A. O sys 10
O B. yis all real numbers.
O C. y20
OD. -9 sys5
Answer:
-9≤y≤5
Step-by-step explanation:
The range is the values that the output can take
The smallest value that the output takes is -9 and the largest value is 5
-9≤y≤5
6 yd
4 yd
7 yd
4 yd
Perimeter:
Area:
Help me find the area and the permiter
Step-by-step explanation:
Assuming figure to be trapezoid,
Perimeter=6+4+7+4yd
=21 yd
Area of trapezoid=((6+7)/2) x ((4)^2-(0.5)^2)
=(13/2)x(16-0.25)
=6.5 x 15.75
=102.375 Sq yards
Write the place and value of 9 in 384.809
Answer:
in the thousandths
Step-by-step explanation:
because it would go
hundreds,tens,ones (decimal) tenths, hundredths,then thousandths
Answer:
Thousandths place and 0.009
Step-by-step explanation:
Given csc(A) = 60/16 and that angle A is in Quadrant I, find the exact value of sec A in simplest radical form using a rational denominator . Someone please help me!
Answer:
[tex]\displaystyle \sec A=\frac{65}{63}[/tex]
Step-by-step explanation:
We are given that:
[tex]\displaystyle \csc A=\frac{65}{16}[/tex]
Where A is in QI.
And we want to find sec(A).
Recall that cosecant is the ratio of the hypotenuse to the opposite side. So, find the adjacent side using the Pythagorean Theorem:
[tex]a=\sqrt{65^2-16^2}=\sqrt{3969}=63[/tex]
So, with respect to A, our adjacent side is 63, our opposite side is 16, and our hypotenuse is 65.
Since A is in QI, all of our trigonometric ratios will be positive.
Secant is the ratio of the hypotenuse to the adjacent. Hence:
[tex]\displaystyle \sec A=\frac{65}{63}[/tex]
Answer:
Step-by-step explanation:
cosec A =60/16
hypotenuse/opposite = 60/16 =15/4 (in simplest form)
therefore hypotenuse = 15 , opposite = 4
then adjacent =? (let be x)
using pythagoras theorem to find adjacent
opposite^2 + adjacent^2 = hypotenuse^2
4^2 + x^2 = 15^2
16 + x^2 = 225
x^2 = 225 - 16
x^2 = 209
[tex]x=\sqrt{209}[/tex]
sec A =hypotenuse/adjacent
[tex]=\frac{15}{\sqrt{209} }[/tex]
[tex]=\frac{15}{\sqrt{209} } * \frac{\sqrt{209} }{\sqrt{209} }[/tex]
=[tex]\frac{15\sqrt{209} }{209}[/tex]
HELlLlLlPllLl is it
10
2
1
9
Answer:
2
Step-by-step explanation:
Help Please!! Find the surface area of the composite figure.
Cuánto es -2+(-3)+4-(-3)-5
Answer:
1
Step-by-step explanation:
the value of each square root
Answer:
root 324=18
root 441=21
root 529=23
Step-by-step explanation:
root 324 = 18
root 441 = 21
root 524 = 23
which one would be a better choice and why? please tell me how u got the answer :)
Answer:
I would roll with option B.
Step-by-step explanation:
If I understand it correctly, I would opt for option B here's why:
Suppose the pizza or pie is $20 each.
For option A, If me and two of my friends order individually we would each only get 10% discount. So 10% of 20 is $2 so we would each pay $18 for each pizza ($54 in total for all of us).
For option B, if we order in same check that means we get 30% of our total order. Our total order is $60 (b/c each pizza is $20 so 20*3= 60). Taking 30% off of $60 is getting discount of $18 bucks which means we would pay $42 only.
Hence, comparing option A and option B, we can clearly see that opting for option B, will save 54-42 = $12.
2 to the power of 4 - 3+2x5
Answer:
121
Step-by-step explanation:
(4 - 3+2·5)²
Multiply
(4-3+10)²
Now add and subtract
(1+10)²
11²
121
Please help me. The answer in the booklet says it’s R=3, but I need working out because I don’t get it.
Answer:
3.
Step-by-step explanation:
R = √[(2)^2 + (√5)^2]
= √(4 + 5)
= √9
= 3.
Answer:
3
Step-by-step explanation:
[tex]R =\sqrt{a^{2}+b^{2}}\\\\= \sqrt{2^{2}+(\sqrt{5})^{2}}\\\\= \sqrt{4+5}\\\\=\sqrt{9}\\\\= \sqrt{3*3}\\\\= 3[/tex]
Hint: (√5)² = [tex]\sqrt{5}*\sqrt{5} = \sqrt{5*5}=5[/tex]
Please help i'm struggling with this!
Answer:
second option is correct (for question no 20)
Step-by-step explanation:
coordinate points are:
(3,1) = (x1,y1)
(5,9) = (x2,y2)
slope (m) = y2-y1/x2-x1
=9-1/5-3
=8/2
=4
Now using slope intercept form
y=mx + b
y=4x + b
since the line passes through the point (3,1) it satisfies the equation
y=4x + b
1=4*3 + b
1-12 = b
-11 = b
substituting the value of b in equation
y=4x + b
y=4x +(-11)
y=4x - 11
math help please 2 questions
Answer:
first one is the second choice
question 2 is correct, the answer is the 4th option
Step-by-step explanation:
no other words
PLEASE HELP !! I'm desperate
Answer:
see below
Step-by-step explanation: 6 23 17 30
the length CD is the square root of the delta X value squared + the delta Y value squared
a² + b² = c² is the common form for this problem use
ΔX² + ΔY² = CD²
ΔX = X2 - X1 ΔY = Y2 - Y1
ΔX = 2 - (-2) ΔY = 5 - (-5)
ΔX = 4 ΔY = 10
4² + 10² = CD²
16 + 100 = CD²
116 = CD²
√116 = √CD² = CD
√(4 × 29) = CD
2√29 = CD the first option
5.1(3 + 2.2x) > –14.25 – 6(1.7x + 4)?
Answer:
x > -2.5
Step-by-step explanation:
1) 5.1 (3 + 2.2x) > -14.25 - 6 (1.7x + 4)
2) 15.3 + 11.22x > -14.25 - 10.2x - 24
3) 15.3 + 11.22x > -38.25 - 10.2x
4) 11.22x + 10.2x > -38.25 - 15.3
5) 21.42x > -53.55
6) x > -2.5
Alternate forms
x > -5/2x or x > -2 1/2
What is the quotient? StartFraction 3 y + 2 Over 3 y EndFraction divided by StartFraction 6 y squared + 4 y Over 3 y + 2 EndFraction
Answer:
[tex]\frac{3y+2}{6y^2}\\[/tex]
Step-by-step explanation:
Given the expression
[tex]\frac{3y+2}{3y}/\frac{6y^2+4y}{3y+2} \\= \frac{3y+2}{3y} * \frac{3y+2}{6y^2+4y}\\= \frac{3y+2}{3y} * \frac{3y+2}{2y(3y+2)}\\= \frac{3y+2}{3y} * \frac{1}{2y}\\= \frac{3y+2}{6y^2}\\[/tex]
PLEASE HELPPPPPPPPPPPPPPPPPPPP
Answer:
18 sq.m
Step-by-step explanation:
Area of the part with cement = area of backyard - area of grass part
Backyard:
length = l = 6m ; Width = w = 4 m
Area of backyard = l * w = 6*4 = 24 sq. m
Grass part:
l = 3 m ; w = 2 m
Area of the grass part = 3*2 = 6 sq.m
Area of the part with cement = 24 - 6 = 18 sq.m
Assume that a cell is a sphere with a radius of 10-³ or 0.001 centimeters and that a cell’s density is 1.1 grams per cubic centimeter.
Koalas weigh 6 kilograms on average. How many cells are in the average koala?
Answer:
[tex]n=1.3\times 10^{12}[/tex]
Step-by-step explanation:
Given that,
The radius of a cell, r = 10⁻³ cm
The density of the cell, d = 1.1 g/cm³
The weight of the Koala, m = 6 kg = 6000 grams
The density of an object is given by:
[tex]d=\dfrac{m}{V}[/tex]
For n cells,
[tex]nd=\dfrac{m}{V}\\\\n=\dfrac{m}{dV}[/tex]
Put all the values,
[tex]n=\frac{6000}{\frac{4}{3}\cdot\pi\cdot\left(10^{-3}\right)^{3}\cdot1.1}\\\\n=1.3\times 10^{12}[/tex]
So, there are [tex]1.3\times 10^{12}[/tex]cells in the average koala.
Help out please !!!!
Answer:
B maybe
Step-by-step explanation:
Najat needs to make a total of 80 deliveries this week. so far She has completed 68 of them . what percentage of her total deliveries has Najaf completed?
85%
Hope this helps! :)
______________
Answer:
68/80×100%=85%
hope it helps!!!
A town with a population of 5,000 grows 3% per year. Find the population at the end of 10 years. Round to the nearest whole number.
Answer:
6500
Step-by-step explanation:
(3)1% of 5000 = (3)50= 150
150x 10= 1500
1500+5000=6500