Answer:
[tex]\displaystyle a:b=\frac{1}{3}[/tex]
Step-by-step explanation:
Ratios
We are given the following relations:
[tex]a=\sqrt{7}+\sqrt{c}\qquad \qquad[1][/tex]
[tex]b=\sqrt{63}+\sqrt{d}\qquad \qquad[2][/tex]
[tex]\displaystyle \frac{c}{d}=\frac{1}{9} \qquad \qquad [3][/tex]
From [3]:
[tex]9c=d[/tex]
Replacing into [2]:
[tex]b=\sqrt{63}+\sqrt{9c}[/tex]
We can express 63=9*7:
[tex]b=\sqrt{9*7}+\sqrt{9c}[/tex]
Taking the square root of 9:
[tex]b=3\sqrt{7}+3\sqrt{c}[/tex]
Factoring:
[tex]b=3(\sqrt{7}+\sqrt{c})[/tex]
Find the ration a:b:
[tex]\displaystyle a:b=\frac{\sqrt{7}+\sqrt{c}}{3(\sqrt{7}+\sqrt{c})}[/tex]
Simplifying:
[tex]\boxed{a:b=\frac{1}{3}}[/tex]
What is the y-intercept of the function below? Y=4x+4 (15 Points!)
Answer:
y- intercept = 4
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y = 4x + 4 ← is in slope- intercept form
with y- intercept c = 4
$27,200 at 9% compounded annually for 2 years
Answer:
A = $32316.30
Step-by-step explanation:
Simple Interest Rate Formula: A = P(1 + r)ⁿ
Step 1: Define variables
Principal amount P = 27200
Rate r = 9% or 0.09
Number of years n = 2 years
Step 2: Substitute and Evaluate for A
A = 27200(1 + 0.09)²
A = 27200(1.09)²
A = 27200(1.1881)
A = 32316.30
-20=-4x-6x solve this ??
Answer:
2=x
Step-by-step explanation:
-20=-4x-6x combine -4x+(-6x)
-20=-10x divide by -10
2=x
Answer:
answer is 2
Step-by-step explanation:
-20=-4x-6x combine like terms
-20=-10x divide
2=x
Gemma, a scuba diver, begins a dive on the side of a boat 4 feet above sea level. She descends 28 feet. Which integer represents Gemma’s position with respect to sea level?
–32
–24
24
32
Answer:
The answer is -24
Step-by-step explanation:
Because she was 4 feet above to begin with so 4-28=-24
5. During the football game, Justin caught three passes. One was for a touchdown and went 52 yards. The other was for a first down and was for 17 yards. The other was on a screen pass that did not work so well and ended up a gain of -10 yards. What was the total yardage gained by Justin on the pass plays?
Answer: 59
Step-by-step explanation:
+52 + 17 - 10
= 69 - 10
= 59
[tex]\huge\boxed{Your\;answer\;is\;59!}[/tex]
First, let's add [tex]52[/tex] and [tex]17[/tex].
[tex]52+17=69[/tex].
Next, we subtract [tex]10[/tex].
[tex]69-10=59[/tex].
Therefore, our final answer is [tex]59[/tex].
3. Which expression is not equivalent to mn + 5?
A. nm + 5 B. 5n + m C. 5 + mn D. 5 + nm
Answer: it is B. 5n + m
Step-by-step explanation: it is because 5 is not being multiplied by anything so it is incorrect.
The answer is B
Give thanks to this if ur from the UK
Probaly you all are American
Solve for x. 7 + 11x + 60 = -13 + 3x
Answer:
x = -10
Step-by-step explanation:
Step 1: Write equation
7 + 11x + 60 = -13 + 3x
Step 2: Solve for x
Combine like terms: 11x + 67 = -13 + 3xSubtract 3x on both sides: 8x + 67 = -13Subtract 67 on both sides: 8x = -80Divide both sides by 8: x = -10Step 3: Check
Plug in x to verify it's a solution.
7 + 11(-10) + 60 = -13 + 3(-10)
67 - 110 = -13 - 30
-43 = -43
help asap
[tex]i \: dont \: understant[/tex]
please help
Answer:
The answer is 5.8 kmStep-by-step explanation:
Since the triangle is a right angled triangle we can use Pythagoras theorem to find the missing side c
Using Pythagoras theorem we have
c² = b² + a²
where
c is the hypotenuse
So we have
[tex] {c}^{2} = {5}^{2} + {3}^{2} \\ c = \sqrt{ {5}^{2} + {3}^{2} } \\ c = \sqrt{ 25 + 9} \\ c = \sqrt{34} \: \: \: \: \: \: \: \: \\ = 5.83095189...[/tex]
We have the final answer as
5.8 km to the nearest tenthHope this helps you
How do you solve linear equations (short definition)
Answer:
by moving x's onto one side and the constants to the other
Step-by-step explanation:
hope that helps
Which statement is true about the end behavior of the graphed function?
As the x-values go to positive infinity, the function's values go to negative infinity.
As the x-values go to zero, the function's values go to positive infinity.
As the x-values go to negative infinity, the function's values are equal to zero
As the x-values go to positive infinity, the function's values go to positive infinity.
Answer:
(SEE EXPLANATION FIRST)
Answer D is TRUE because on the graph if you were to keep going left even after the picture of the graph ends, the graph will still keep going up infinite
Step-by-step explanation:
If this is the graph you can read the answer
Answer:
A.
As the x-values go to positive infinity, the function's values go to negative infinity.
Step-by-step explanation:
Someone please help me!!
Answer:B and E
Step-by-step explanation:
Which of the following is an equation of the line through (2, 3) and (-1, -12)?
Answer:
y = 5x - 7
Step-by-step explanation:
First point coordinates
x₁
2
y₁
3
Second point coordinates
x₂
-1
y₂
-12
Result
Slope (m)
5
m = -15 / -3 = -5 / -1 = 5
Your function
The entered points belong to an increasing, linear function.
Equation: y = 5x - 7.
Hope i helped :)
Solve for x.
2(-x + 4) – 3x + 2 = -5
Answer:
x=3
Step-by-step explanation:
2(-x + 4) – 3x + 2 = -5
-2x+8-3x+2=-5
-5x+10=-5
-5x=-15
x=3
A mechanic used 49 quarts of oil to change the oil in 7 cars. At this rate, how much oil would he use to change ths oil in 17 cars
Answer:
139 quarts
Step-by-step explanation:
Answer:
The mechanic would use 139 quarts for the 17 cars.
If two quantitative variables are highly correlated, does that necessarily result in causation?
Answer:
not necessarily
Step-by-step explanation:
differentiation from first principles. please help! question is attached :)
Answer:
d
Step-by-step explanation:
SKSKSKSKKSKSKSKSKSKSKSKS
Answer:
hydroflask :P
Hm. If p is true, then q is true, if p is false, than q is false.
So, the inverse must be true.
The converse doesn't have to be true at all, and same with the contrapositive if I'm correct.
Pretty sure it's just the inverse. :)
(please comment if I'm wrong! I'll be happy to learn!)
A car travels 32 km due north and then 46 km in a direction 40 degrees west of north. Find the magnitude of the cars resultant vector nearest tenth
Answer:
Step-by-step explanation:
In order to find the magnitude of the car's final displacement (resultant displacement vector), we need the x and y components of each part of the car's journey. We will call them vector A and vector B. The info for the vectors is as follows:
A: magnitude 32 at an angle of 90.0
B: magnitude 46 at an angle of 40.0
The x components are found in the formula
A(x) = magA*cos(angle)
For A(x):
A(x) : 32cos(90.0) = 0.0 and
For B(x) : 46cos(40.0) = 35.2
For A(y): 32sin(90.0) = 32 and
For B(y): 46sin(40.0) = 3.0 × 10¹
To get the x components of the final vector, add the x components of A and B together:
C(x) : 0.0
35.2
35.2
To get the y components of the final vector, add the y components of A and B together:
C(y) : 32
30
62
Now to get the magnitude, throw it into the magnitude formula, which is identical to Pythagorean's theorem:
C(mag) = [tex]\sqrt{(35.2^2)+(62^2)}=71.3 km[/tex]
PLS HELP !!!!!!
Tell me the integers pls ! ASAP !
Answer:
-3 is the integer
4 would be greater than -3
what is the value of x 5x + 8
Answer:
2.3 is your answer sry if wrong
Step-by-step explanation:
Answer:
x=-3
Step-by-step explanation:
solve for x
(x/r)+(x/w)+(x/t)= 1
x/r + x/w + x/t = 1
x (1/r + 1/w + 1/t) = 1
x = 1 / (1/r + 1/w + 1/t)
To make the solution a bit cleaner, multiply through the numerator and denominator by the LCM of each fraction's denominator, rwt :
x = 1 / (1/r + 1/w + 1/t) • rwt / rwt
x = rwt / (rwt/r + rwt/w + rwt/t)
x = rwt / (wt + rt + rw)
Multiply. (2/5)(−5/4)
Answer:
-1/2 this is the answer
1
Domino's can make 4 pizzas using 3 1/2 cups of sauce. How many cups of sauce are needed to make 1
pizza?
7/8 cups of sauce are needed to make 1 pizza.
What is Unitary Method?The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units.
For example, Let's say Ram spends 36 Rs. for a dozen (12) bananas.
12 bananas will set you back 36 Rs. 1 banana costs 36 x 12 = 3 Rupees.
As a result, one banana costs three rupees. Let's say we need to calculate the price of 15 bananas.
This may be done as follows: 15 bananas cost 3 rupees each; 15 units cost 45 rupees.
Given:
Domino's can make 4 pizzas using 3 1/2 cups of sauce.
Now, for 1 pizza he needed
= (3 1/2) /4
= (7/2)/ 4
= 7/2 x 1/4
= 7/8 cups of sauce.
Hence, 7/8 cups of sauce needed.
Learn more about Unitary Method here:
https://brainly.com/question/22056199
#SPJ2
A steel ball whose mass is 2.0 kg is rolling at a rate of 2.8 m/s. What is its momentum?
1) 1.4 kgm/s
2) .71 kgm/s
3) 5.6 kgm/s
4) 4.8 kgm/s
Answer:
mxv
Step-by-step explanation:
2.0x2.8=5.6
momentums equation is mass times velocity so 2.0kg is the mass and you multiply it by the velocity which is 2.8m/s and that is how you get your answer. your answer is number 3
3 minutes into hours
Answer:
ok
Step-by-step explanation:
John throws a ball upward at a rate of 22 meters per second from an
initial height of 3 meters. The height of the ball above the ground can
be approximated by h (t) = -16t2 + 22.0 + 3, where t represents
the amount of time, in seconds, since the ball has been released.
How many seconds will it reach the ground?
Answer:
1.5 seconds
Step-by-step explanation:
The height equation is supposed to be ...
h(t) = -16t^2 +22t +3
We want to find the positive value of t where h(t) = 0.
0 = -16t^2 +24t -2t +3 . . . . facilitate factoring
0 = -8t(2t -3) -1(2t -3) . . . . . factor by pairs
0 = -(8t +1)(2t -3) . . . . . . . . complete the factoring
The solutions to this are ...
t = -1/8, 3/2
The ball will reach the ground in 1.5 seconds.
Solve the inequality. (hint: isolate the absolute value).
8 + |4v - 7| >17
Answer:
v <−1/2 or v >4
If angles are congruent, solve by setting expressions equal to each other.
True
False
Which input has more than 1 output?
Answer: 4
Step-by-step explanation:
There are more than one 4
Evaluate 1/6 + 2/3. Can you please explain how you got your answer?
A. 3/18
B. 5/6
C. 1/5
D. 1 1/6
Answer:
5/6
Step-by-step explanation:
1/6 + 2/3
Get a common denominator of 6
1/6 + 2/3 *2/2
1/6 + 4/6
Add the numerators
5/6
Answer:
B
Step-by-step explanation:
1. Get the common denominator
2 × 2 = 4
_______ = (4/6)
3 × 2 = 6
(4/6)+(1/6)= 5/6
