Answer:
8
Step-by-step explanation:
6x+5=53
6x=48
6x/6=48/6
x=8
Sum of the maximum and minimum values of y=2cos^2 x + 3sin^2 x + 5
To begin with, we can simplify y using the Pythagorean identity:
y = 2 cos²(x) + 3 sin²(x) + 5
y = 2 (cos²(x) + sin²(x)) + sin²(x) + 5
y = 2 + sin²(x) + 5
y = sin²(x) + 7
Next, we can further rewrite this using the half angle identity for sine:
y = (1 - cos(2x))/2 + 7
y = 15/2 - 1/2 cos(2x)
Now, since cos(x) is bounded between -1 and 1, we have
max(y) = 15/2 - 1/2×(-1) = 15/2 + 1/2 = 8
and
min(y) = 15/2 - 1/2×1 = 15/2 - 1/2 = 7
Then the sum of the maximum and minimum is 8 + 7 = 15.
Seven of the algebra classes at a school have 23 students each. The eighth class has 25
students. What is the total number of students?
Answer: 186 students
Step-by-step explanation:
7x23+25= 186
m∠ABC = (9x + 4)° and m∠DEF = (13x − 22)°. If ∠ABC and ∠DEF are supplementary, what is the measure of each angle?
Answer:
∠ABC measures 85° and ∠DEF measures 95°.
Step-by-step explanation:
We are given that ∠ABC and ∠DEF are supplementary. Then by definition:
[tex]\displaystyle m\angle ABC + m\angle DE F = 180^\circ[/tex]
Substitute:
[tex]\displaystyle \left(9x+4\right) + \left(13x-22\right) = 180[/tex]
Solve for x. Combine like terms:
[tex]22x -18 = 180[/tex]
Add:
[tex]\displaystyle 22x = 198[/tex]
And divide. Hence:
[tex]\displaystyle x = 9[/tex]
To find the measure of ∠ABC, substitute and evaluate:
[tex]\displaystyle \begin{aligned}m\angle ABC &= 9x + 4 \\ &= 9(9) + 4 \\ &= 81 + 4 \\ &= 85^\circ \end{aligned}[/tex]
And:
[tex]\displaystyle \begin{aligned}m\ngle DE F &= 13x - 22 \\ &= 13(9) - 22 \\ &= 117-22 \\&= 95^\circ \end{aligned}[/tex]
In conclusion, ∠ABC measures 85° and ∠DEF measures 95°.
Pls help !!!
find the rate of change on [-1, 4]
Answer:
Step-by-step explanation:
help me with this plsssssssss ps that is a 2
Answer:
14...
plz mark me brailiest
If you are performing the following translation (x,y) --> (x + 3, y -4) Determine how that would change the original ordered pair (10, 9). Select the new ordered pair after the Translation. (answer choices below)
(7, 9)
(10, 4)
(3, 10)
(13, 5)
Answer:
(13, 5 )
Step-by-step explanation:
The translation
(x, y ) → (x + 3, y - 4)
Means add 3 to the x- coordinate and subtract 4 from the y- coordinate, so
(10, 9 ) → (10 + 3, 9 - 4 ) → (13, 5 )
A gas has a density of 0.824 g/L and occupies a volume of 3.00 liters. What is the mass in grams?
Density is mass per unit volume,
ρ = m/v
Solving for mass gives
m = ρv
so that a gas with density 0.824 g/L that occupies 3.00 L has a mass of
m = (0.824 g/L) (3.00 L) = 2.47 g
Given that g(x) = x°, find each of the following.
a) g(1)
b) g(-2)
c) g(-x)
d) g(3y)
e) g(1 + h)
PLSS HELP! What is -2m-5m=9m-12? ALGEBRA I
Step-by-step explanation:
1. -2m-5m-9m=-12
2. -16m= -12
3. m= -12/ -16
4. m=3/4
i have written / sign as a sign of division .
3(m+1)+1>7 what is m?
For a school assignment Brody weighed two different blocks of wood the red block weighed 9/10 of a pound and the blue block weighed 3/5 of a pound what is the difference in the two weights?
Answer:
3/10
Step-by-step explanation:
Difference = Red - blue
red = 9/10
blue = 3/5 = 6/10 multiply top and bottom by 2
Difference = 9/10 - 6/10 = 3/10
an arena is 1/2 full. After 1,500 people leave the arena, it is 1/3 full. What is the seating capacity of the arena?
Answer:
9000
Step-by-step explanation:
(x/2)-(x/3) = 1500
(x/6)=1500
x= 9000
g(x) = f(x) +2
if f(x) is 2x
Answer:
You didn't put the question well but if I am right, the question is asking of g(x) if f(x) is 2x.
then g(x)=2x+2
write each expression as a single power of 10
Answer:
[tex]{ \underline{ \sf{it \: is \: {10}^{9} }}}[/tex]
Step-by-step explanation:
[tex](10 {}^{4} ). \frac{ {10}^{12} }{ {10}^{7} } = ( {10}^{4} ). {10}^{(12 - 7)} \\ \\ = ( {10}^{4} ). {10}^{5} \\ = {10}^{(4 + 5)} \\ = {10}^{9} [/tex]
Answer:
[tex]10^{9}[/tex]
Step-by-step explanation:
I. [tex]10^{4} * 10^{12-7}[/tex]
= [tex]10^{4} * 10^{5}[/tex]
= [tex]10^{4 + 5}[/tex]
= [tex]10^{9}[/tex]
The cube of a whole number is 100 more
than the square of the same number,
What is the number?
Answer:
The number is 0 or 100
Step-by-step explanation:
Let the number be x.
ATQ, x^3=100x^2, x^2(x-100)=0, x=0, 100
The TGV is a high speed train in France. The speed of this train can be modeled by the equation d = 347.2t, where d is the train’s distance, in miles, and t is the time, in hours. The Shanghai-Hangzhou Train is a high speed train in China, and the table below summarizes how long it takes this train to travel different distances. Assume that both trains always operate at constant speeds. Which train is faster?
Answer:5435
Step-by-step explanation:
write each expression as a single power of 10
Answer:
10⁸
Step-by-step explanation:
[tex]( \frac{10 ^{5} }{ {10}^{3} } ) ^{4} \\ (10 ^{5 - 3} ) ^{4} \\ (10 ^{2} )^{4} \\ (10 ^{2 \times 4} ) \\ (10^{8} )[/tex]
I hope it helped U
stay safe stay happy
because the expression is raised to a power, you're going to multiply the power inside the expression with the power outside the expression. Thus:
[tex] \frac{10 ^{20} }{10^{12} } [/tex]
Since the powers are being divided, you can just subtract 20 by 12. Then you would get:
[tex]10^{8} [/tex]
50 yards of fabric for 18 flags Unit rate
Evaluate the expression.
5 x -3 + 2
Answer:
5x-1
Step-by-step explanation:
solution
5x-3+2
or, 5x-1
It is given that the gradient of a straight line which passes through M(h,3) and N(-2,-9) is 2, calculate the value of h.
Answer:
h = 4
Step-by-step explanation:
Calculate the slope m using the slope formula and equate to 2
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = M (h, 3 ) and (x₂, y₂ ) = N (- 2, - 9 )
m = [tex]\frac{-9-3}{-2-h}[/tex] = [tex]\frac{-12}{-2-h}[/tex] , then
[tex]\frac{-12}{-2-h}[/tex] = 2 ( multiply both sides by - 2 - h )
2(- 2 - h) = - 12 ( divide both sides by 2 )
- 2 - h = - 6 ( add 2 to both sides )
- h = - 4 ( multiply both sides by - 1 )
h = 4
Pamella late for school 10% of time. Richard late for 15% of the time.
a) What percentage are they both late?
b) What is the probability only one of them is late?
Answer:
a) 25%
10%+15% = 25%
b) doesn't have any idea
FIND x :
x+(x+1)+(x+2)=(x+1)^2
A. 1
B. 0
C. 3
D. 2
Answer:
2
Step-by-step explanation:
Answer:
x = - 1, x = 2
Step-by-step explanation:
Given
x + (x + 1) + (x + 2) = (x + 1)² ← expand using FOIL , then
x + x + 1 + x + 2 = x² + 2x + 1 , that is
3x + 3 = x² + 2x + 1 ( subtract 3x + 3 from both sides )
0 = x² - x - 2 ← in standard form
0 = (x - 2)(x + 1) ← in factored form
Equate each factor to zero and solve for x
x + 1 = 0 ⇒ x = - 1
x - 2 = 0 ⇒ x = 2
3(p – 6) + 15 = 0
PLEASE SOLVE PLEASE HELP IT IS URGENT
[tex]\boxed{\underline{\bf \: ANSWER}}[/tex]
[tex] \sf3(p - 6) + 15 = 0 \\\sf 3p - 18 + 15 = 0 \\\sf 3p - 3 = 0 \\ \sf3p = 3 \\ \sf \: p = \frac{3}{3} \\ \boxed{\bf p = 1}[/tex]
The value of p is 1.
_______
Hope it helps.
RainbowSalt2222
[tex]\\ \rm\longmapsto 3(p-6)+15=0[/tex]
[tex]\\ \rm\longmapsto 3p-18+15=0[/tex]
[tex]\\ \rm\longmapsto 3p-3=0[/tex]
[tex]\\ \rm\longmapsto 3p=3[/tex]
[tex]\\ \rm\longmapsto p=\dfrac{3}{3}[/tex]
[tex]\\ \rm\longmapsto p=1[/tex]
Cho is making a rectangular garden, where the length is x feet and
the width is 4x – 1 feet. He wants to add garden stones around
the perimeter of the garden once he is done. If the garden is 4 feet
long, how many feet will Cho need to cover with garden stones?
Answer:16x-6
Step-by-step explanation:4(4x-1) distributed is 16x-6
Which two numbers have a mean of 10 and a range of 4?
Answer:
Two numbers that have a mean of 10 and a range of 4 are the numbers 12 and 8.
Hope this helps!
Answer:
12 and 8 it is easy and i rlly hope it helps
p 2 + m; use m = 1, and p = 5
Answer:
26
Step-by-step explanation:
p²+m
=> 5²+1
=> 25 + 1
=> 26
Answer:
26
Step-by-step explanation:
Substitute the given values into the expression
p² + m
= 5² + 1
= 25 + 1
= 26
2.6 a simplified fraction and the 6 is a repeating decimal
Solve 6x + ( 14x - 5 ) + ( 17 - 3x ) , - ( 2 - x ) -3 ( 6 + 8x ) -12, ( 4x - 9 ) + 8 ( 2x + 3 ) -7x
Answer:
Step-by-step explanation:
6x + ( 14x - 5 ) + ( 17 - 3x )
= 17x + 12
- ( 2 - x ) -3 ( 6 + 8x ) -12,
= -23x - 32
( 4x - 9 ) + 8 ( 2x + 3 ) -7x
= 13x +15
the round trip distance between City X and City Y is 647 miles. A national park is between City X and City Y, and is 27 miles from City X. Find the round trip distance between the national park and city Y. Justify your answer.
The round trip distance between the national park and city Y is 593 miles.
Given:
Round trip distance from City X and City Y = 647 milesDistance between City X and national park = 27 milesTo find :
The round trip distance between the national park and city Y
Solution:
According to the question, the round trip distance between City X and City Y is 647 miles.
Let the distance from City X to City Y = d
Let the distance from City Y to City X = d
[tex]d+d=647 miles\\2d=647 miles\\d=\frac{647miles}{2}=323.5 miles[/tex]
Distance from City X to City Y = 323.5 miles
Distance of City X from national park = 27 miles
From the figure, the distance of the national park from the City Y = d -27 miles:
[tex]= 323.5 miles - 27 miles = 296.5 miles[/tex]
The distance from national park to City Y = 296.5 miles
When we will be going on the round trip between the national park and city Y we will be first traveling 296.5 miles from the national park to the City Y and then 296.5 miles from City Y to the national park.
So, the round trip distance between the national park and city Y:
[tex]296.5 miles + 296.5 miles = 593 miles[/tex]
So the round trip distance between the national park and city Y is 593 miles.
Learn more about- Round trip Distance
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Find the midpoint of the segment with the given endpoints.
(-10.8) and (2.2)
Answer:
(-4,5)
Step-by-step explanation:
To find the x coordinate of the midpoint, add the x coordinate of the endpoints and divide by 2
(-10 +2)/2 = -8/2 = -4
To find the y coordinate of the midpoint, add the y coordinate of the endpoints and divide by 2
(8 +2)/2 = 10/2 = 5
(-4,5)
Answer:
(-4 , 5)
Step-by-step explanation:
(x₁ , y₁) = (-10 , 8) & (x₂ , y₂) = (2 , 2)
[tex]Midpoint = (\dfrac{x_{1}+x_{2}}{2},\dfrac{y_{1}+y_{2}}{2})\\\\[/tex]
[tex]=(\dfrac{-10+2}{2},\dfrac{8+2}{2})\\\\=(\dfrac{-8}{2},\dfrac{10}{2})\\\\=(-4 , 5)[/tex]