i think the answer is 6 and how i kow is because i already did this
More help plsssssssss
Answer:
8) x = 3
9) x = 10
Step-by-step explanation:
8) 45° ≅ 15x, therefore, the equation would look like: [tex]45 = 15x[/tex]
☆Let's solve it!
[tex] \frac{45}{15} = \frac{15x}{15} \\ 3 = x[/tex]
9) 12x - 10 is supplementary to 8x - 10. So the equation would be: [tex]12 x- 10 + 8x - 10 = 180[/tex]
☆Let's solve it!
[tex]12x - 10 + 8x - 10 = 180 \\ 20x - 20 = 180 \\ \frac{ \: \: \: \: \: \: \: \: \: \: + 20 = + 20}{ \frac{20x}{20} = \frac{200}{20} } \\ x = 10[/tex]
Write an equivalent expression.
15 3a +
3
Answer:
3 (15 a + 1)
45 a + 3
Step-by-step explanation:
Please help me with this problem if you do and get it right ill do anything
Answer:
<QSR is what you would write. You would put that symbol at the very left first and then type QSR. I don't know how to type that symbol in brainly.
Hope that helps :)
If 5 is added to the square of a number, the result is 30. Find all such numbers,
Answer:
5, -5
Step-by-step explanation:
We have the problem x^2+5=30
Same to both sides
x^2=25
And 25 is a perfect square, x = 5
BUUUUUUUT..........
x could also equal to -5 because no numbers that are squared can be negative
Confused?
Squaring a number means doing the number multiplied by itself
A negative multiplied by a negative equals a positive
A positive multiplied by a positive equals a positive
Under no circumstances can something squared be a negative number
-5*-5 also equals 25.
So those are your two numbers
Let me know if you have any questions
Help plz I need help i have no idea what to do
Answer:
the answer will be 15 number D
Answer:
x = 15 (D)
Step-by-step explanation:
First, we distribute the -1/2:
-1/2 x x = -1/2x
-1/2 x 5 = -2.5
Now we have -1/2x + (-2.5) = -10
Move the variables to one side and the regular numbers on the other (in other words, subtracting both sides by -2.5:
-1/2x = -10 + 2.5
-1/2x = -7.5
x = -7.5/(-1/2)
x = 15 (D)
Please answer (*´∇｀*)
Find m∠1 and m∠3 in the kite. The diagram is not drawn to scale.
Answer:
m<1 = 39°
m<3 = 180-90-39= 51°
Step-by-step explanation:
Lines AC and DB are diagonals and always meet at right angles.
Kites have two sets of equivalent adjacent sides and one set up of congruent opposite angles.
Using angle theorems, the value of the angles m1 and m3 are 39° and 51° respectively.
Taking the midpoint of DB as O ;
Angle OAD and Angle OAB are equal
OAD = 39° ; OAB = 39°
A right angle is formed at O ;
Hence,
(O + D + A) = 180°90° + D + 39° = 180° (Sum of interior angles of a triangle)
D = 180 - 129
D = 51°
Hence, m∠3 = 51°
Learn more : https://brainly.com/question/14717218
What is the simple interest on $4,500 for 2 and a half years at 4% per year?
Answer:
450
Step-by-step explanation:
Answer:
450
Step-by-step explanation:
I just took the quiz and got it right, hope this helps :)
Which statement is true about this quadratic equation?
y = –2x^2 + 9x-12
A.There are two real solutions.
B.There is one complex solution.
c.There is one real solution.
D.There are two complex solutions.
Answer:
There are two real roots because b²>4ac
in the equation, b²= 9² = 81.
4ac = 4×-4×-12= 72
Really confused on this.
Answer:
it is C.
Step-by-step explanation:
trust me, i dont have time to expln how, it jst is
Answer:
B
Step-by-step explanation:
Lets look at A. In A, It says 0.510 is greater than 0.510. That is not true becuase both are equal. A is false.
Lets look at B. In B, it says 0.501 is less that 0.510. This is true. 501 is less than 510. B is true.
Lets look at C. In C, it says 0.061 is greater than 0.510. This is not true becuase 61 is not greater than 510. C is false.
Lets look at D. In B, it says that 0.500 is greater than 0.510. This is not true becuase 500 is less than 510. D is false.
B is the correct answer. I hope this helps! Let me know if I got something wrong so I can fix it.
f(x) = sqrt(- 2x) Determine for each value whether it is in the domain of f or not.
Answer:
only -2 is in the domain
Step-by-step explanation:
For negative values under the sqrt, there is no real answer, hence
-2x ≥ 0
only for x=-2 this is the case.
The domain represents all the valid input values for x.
Determine whether the given value of the variable is a solution to the inequality.
x+7<15 when x=9
Answer:
No
Step-by-step explanation:
9+7 : 16
16<15
It is not
Answer:
The solution is false.
Step-by-step explanation:
In order to get the solution for the first part(x+7), you would substitute the x with the given value(9). So (9)+7=16. Now it would be 16<15. This statement is false because 16 is not smaller than 15. 16 is greater than 15. 16>15
A pentagon has 5 equivalent sides. If each side is represented by the expression 2k+3, what is the perimeter
A circular field has arey 144001 square feet.
What is the radius of the field?
Answer:
about 214.1
Step-by-step explanation:
Since pi r squared is the formula for a circle's area, you would do the opposite. First, you would divide 144001 by pi which is about 45,836.94. Then, you would find the square root of that which is about 214.1.
n element with mass 570 grams decays by 18% per minute. How much of the element is remaining after 13 minutes, to the nearest 10th of a gram?
Answer:
Step-by-step explanation:
Exponential Functions:
y=ab^x
a=starting value=570
r=rate=18%=0.18
Exponential Decay:
b = 1 - r = 1 - 0.18 = 0.82
Write Exponential Function: put it all together
y=570(0.82)^13
Plug in time for x:
y=570(0.82)^13
y=43.197134 evaluate
ANSWER: y≈43.2 round
Tom is applying for a visa.
He has to pay £2,300 for the visa as well as a 7% charge on the visa price for an on-the-day service.
If Tom has 1 year to save, how much money should he save per month to be able to cover his costs?
Round your answer to the nearest £10
Answer:
£210
Step-by-step explanation:
Given that :
Visa cost = £2300
7% charge of visa price = (0.07 * £2300) = £161
Total cost = £(161 + 2300) = £2461
Amount to be saved per month = £2461 / 12 = £205.08333
= £210 (nearest £10)
What is the slope of the line with points (-3,0) and (3, 2)?
Answer: slope equals 2/6 =1/3= 0.33333
Step-by-step explanation:
Answer:
The slope of the line with points (-3,0) and (3, 2) is:
m = 1/3Step-by-step explanation:
Given the points
(-3,0)(3, 2)Determining the slope between (-3,0) and (3, 2)
(x₁, y₁) = (-3,0)
(x₂, y₂) = (3, 2)
Using the formula
Slope = m = [y₂ - y₁] / [x₂ - x₁]
= [2 - 0] / [3 - (-3)]
= 2/6
= 1/3
Thus, the slope of the line with points (-3,0) and (3, 2) is:
m = 1/3Q: you can either make a graph or write a ratio to find the slope
Help Please with these 2!
Thank you!
Answer:
if you multiply the denominator by the AB^3 by 7 you wll get your common factor
Step-by-step explanation:
Step-by-step explanation:
Question 15:
5(x - 9) - 2(x + 3)
= (5)(x) + (5)(-9) - (2)(x) - (2)(3)
= 5x - 45 - 2x - 6
= 3x - 51
= 3(x - 17).
Question 16:
The terms 36x, 18y and 9 have GCF of 9.
Hence 36x - 18y + 9 = 9(4x - 2y + 1).
Find the gradient of the straiht line with the equations1.2(3y+4x)=6 ,2.5(y-3x)=10-5x 3.3y-1/2x=7. 4.1/4x-1/3y=1. 5.3y=2x/3+4
Answer:
Step-by-step explanation:
not sure i thinks is 1
Solve the system of equations by using substitution.
y = 2x – 3
y = x+4
Answer:
point form=7,11 x= 7,y =11
Step-by-step explanation:
Answer:
Step-by-step explanation:
y=2x-3
y=x+4
2x-3=x+4
2x-x=4+3
x=7
y=7+4=11
Is it possible to find a value of $x$ so that the value of the surface area (in square inches) is equal to the value of the volume (in cubic inches)?
If possible, what is the value of $x$ ?
Write an equation to justify your answer.
The box has volume
11 in × 3 in × x in = 33x in³
and surface area
2 (11 in × 3 in + 11 in × x in + 3 in × x in) = (66 + 28x) in²
The volume and area have the same value if
33x = 66 + 28x
Solve this equation for x :
33x - 28x = 66
5x = 66
x = 66/5 = 13.2
HELPP
335 670 1340 2680
what's the question?
1/4 | m
2/3
write an equation to represent the image
9514 1404 393
Answer:
1/4 + m = 2/3
Step-by-step explanation:
The image shows bars of length 1/4 and m together have the same length as a bar that is 2/3. As an equation, this is ...
1/4 + m = 2/3
I need help, yes I'm not a big brain to this stuff
Answer:
what's the question?
Step-by-step explanation:
Answer:
What is the question you need help with?
Please lead the question below.
what's the place value of the 1 in 352.01
Answer:
100ths place
Step-by-step explanation:
please i need an answer ASAP!!
4. What is 0.5% of 75??
Answer:
0.375
Step-by-step explanation:
(xx+5)(xx-6)(x-1) help again
Answer:
x5−x4−x3+x2−30x+30
-3/4 ÷ 2/9=
I've missed days of school and am super. lost
