Answer:
3C + 3D = 12x² -12x + 30
Step-by-step explanation:
Given
C = x² + 7D = 3x² - 4x + 3To determine
3C + 3DThe expression is given by
3C + 3D
substituting C = x² + 7 and D = 3x² - 4x + 3
= 3(x² + 7) + 3(3x² - 4x + 3)
= 3x² + 21 + 9x² - 12x + 9
= 12x² -12x + 30
Thus, the expression in standard form is:
3C + 3D = 12x² -12x + 30
find the value of y.
Answer:
y=9
Step-by-step explanation:
Find the slope of the line that passes through:
(2, 4) and (6, 12)
Answer:
Step-by-step explanation:
2
Answer:
4
Step-by-step explanation:
Slope is rise over run, but you can also find the slope between two points with this formula:
[tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
12-4=8
----------
6-2=4
8/2=4
Help, 5 says write the equation you would use to find the measure of each angle
Answer:
x=18, 4x=72, x=90
Step by-step explanation:
180 degrees = 90 degrees + x+ 4x
180 degrees = 90 +5x
180-90=5x
90=5x
x=18 degrees
right angle: 90 degrees
4x= 72 degrees
Line r passes through points (5, 3) and (9, 8). Line s is perpendicular to r. What is the slope of line s?
Answer: The slope of the line would be 1.25!
Step-by-step explanation: I'll provide a screenshot of the graph I have made in a second! (:
who ships Mariette and cat noir meeeeeeeeeee
Answer:cute i love that show
Step-by-step explanation:
Can someone help please :) (it’s easy) (I’ll give brainlist)
Answer:
b<25
Step-by-step explanation:
Answer:
b ≥ 25.
Step-by-step explanation:
The statement contains the phrase “A minimum of” meaning that the amount of candy bard in each bag could either be anything higher than 25, or just 25. Basically just any number that is greater than or equal to 25. Therefore, you should use the greater than or equal to sign after the variable b and then but the number 25 after that.
I hope this helps you. Have a nice day.
f(x) = x2 + 2x-5
g(x) = -3/2 - 4x + 1
What is f(x) – g(x)?
Step-by-step explanation:
Start by finding (fog)(x)
To find this function, substitute x=
x−1
4
That is g(x) into f(x)
⇒(f∘g)(x)=(
x−1
4
)
2
−2(
x−1
4
)+5
=
(x−1)
2
16
−
x−1
8
+5
Now substitute x=3
⇒(f∘g)(3)=
(3−1)
2
16
−
3−1
8
+5
=
4
16
−
2
8
+5=4−4+5=5.
Hope it helps:)
A bag holds 5 pounds of pet food. If Paul uses the 5 pounds of food to fill 6 plastic containers equally, how much pet food will each container hold?
A. 0.08 pounds
B. 0.8 pounds
C. 0.803........ pounds
D. 0.83..... pounds
Answer:
Is D for your question
Step-by-step explanation:
hope this helps
Answer:
answer is D
step by step
because i looked up the answer
Help me plsssssssssssssssssssssssss
Answer:
27
Step-by-step explanation:
help please, pythagorean theorem
Answer:
a. 40 yards
b. 30 more yards
Step-by-step explanation:
a. 30²+x²=50²
900+x²=2500
x²=1600
x=40
b. It would be 60 yards if she just went to the Elm cabin, but if she went down to the mess hall it would be 50 yards, and then 40 more yards to Elm. 90 is 30 more than 60.
(hope this helps!)
find the length of x
answer:
x = 3
step-by-step explanation:
set up a ratio = big triangle : small triangle
5 : 15
x : 9
x = 3
Answer:
x=33333333333
Step-by-step explanation:
x=33333333333333
PLEASE HELP TODAY ASAP WILL GIVE BRAINLIEST TO WHOEVER ANSWERS CORRECTLY.
Which table shows a proportional relationship between x and y?
x y
1 4
2 8
3 12
x y
1 2
2 4
3 8
x y
0 0
1 1
2 4
x y
0 4
1 8
2 12
Answer:
Step-by-step explanation:
I think it's the first last one because proportional means it increases by the same each time so the last one fits in that category
Answer:
Number 1 is proportional, 2 is non proportional, 3 non proportional, 4 non proportional.
Step-by-step explanation:
You divide . 4÷1=4 , 8÷2=4, 12÷3=4, the unit rate MUST be the same !!!! And if there's 0 0, that doesn't count so like if your other 2 have the same unit rate it would still be proportional.
A,b&c from a triangle where < bac= 90° Ab= 13.9 mm and ca= 8.8mm find the length of bc ?
Answer:
BC = 1 6.45
Step-by-step explanation:
The way it is written, BC is the hypotenuse
BC^2 = AB^2 + CA^2 Substitute the numbers for AB and CA
BC^2 = 13.9^2 + 8.8^2 Perform the squares
BC^2 = 193.21 + 77.44 Add the right side
BC^2 = 270.65 Take the square root of both sides
BC = 16.45
what is the domain of the following relation? {(-4,1), (-2, 0), (8,-1)
-2/5x =10
a. x=-4
b.x=-25
c. x=4
d.x=25
Answer:
The answer would be B x=-25
Step-by-step explanation:
A picture of a family cast is 9 inches wide. the family needs a reduced copy for the front page of the family newsletter. the copy must fit in a space 3 inches wide. what scale factor should be used on the copy machine to adjust the size of the picture of the crest?
3
1/3
4
1/4
The ratio of red to green tiles in a pattern is 2:3
What fraction of the tiles are green
Answer:
3 /5
Step-by-step explanation:
Given that:
Ratio of red to green to tiles = 2:3
Red = 2
Green = 3
Total sum of each part (red + green) = (2 + 3) = 5
Fraction of green tiles :
Green / total sum
3 / 5
PLS HELP LOL!!! Isabella and Alice are standing some distance apart on the same side of a building 50 meters tall. From where Isabella stands, the angle of elevation of the top of the building is 30. From where Alice stands, the angle is 60. What is the distance between Isabella and Alice to the nearest tenth of a meter?
Answer:
57.7 m
Step-by-step explanation:
Since the distance between Isabella, the building and the angle form a right angled triangle with the height of the building = h = 50 m as the opposite side and x = distance between Isabella and the building = adjacent side and Ф = angle of elevation of the top of the building from Isabella = 30°.
So, from trigonometric ratios,
tanФ = h/x
and x = h/tanФ
= 50 m/tan30°
= 50/0.5774
= 86.6 m
Also, the distance between Alice, the building and the angle form a right angled triangle with the height of the building = h = 50 m as the opposite side and x' = distance between Alice and the building = adjacent side and Ф' = angle of elevation of the top of the building from Alice = 60°.
So, from trigonometric ratios,
tanФ' = h/x'
and x' = h/tanФ'
= 50 m/tan60°
= 50/1.7321
= 28.87 m
So, the distance between Isabella and Alice, x" = x - x'
= 86.6 m - 28.87 m
= 57.73 m
≅ 57.7 m
On a unit circle, the terminal point of Ø is (square root 2/3, square root 2/2). What is ø if 0°<ø< 360°?
A. 30°
B. 15°
C. 60°
D.45°
Answer:
45º
Step-by-step explanation:
On unit circle 45º = √2/2,√2/2 so its 45º trust me
Answer:
it is 45
Step-by-step explanation:
i got it right on the test
Plss help (answer A, B, C individually!)
Consider the equation 3x² - 13x - 30 = 0
(a) Write the factored form of the trinomial.
(b) What are the roots of the equation?
(c) How do the roots of the equation relate to the factors of the trinomial?
Answer:
Im not sure abt the A part. BUT I do know b and c.
Answer: B) 3x^2-13x-30=0
(3x+5) (x-6)=0
3x+5=0 x-6=0
3x=-5 x-6=0
Answers that are the Roots: [ x=-5/3] and [x=6]
Answer: C) Set factors equal to 0 to find the roots.
Step-by-step explanation:
Don't really need one but hope this helps.
I need help finding A
Answer:
a=23
Step-by-step explanation:
angle a, b,c and are congruent
3a-9+3a-9+3a-9=180
combine like terms
9a-27=180
add 27 on both sides
9a=209
divide by 9 on both sides
a=23
HELP!! I can't figure this out.
Solve for x.
3x =9
Answer:
The answer is x= 3
Step-by-step explanation:
Divide each term by 3 and simplify.
Hoped this helped!
Could I please get brainly?
Hal is asked to write an exponential function to represent the value of a $10,000 investment decreasing at 2% annually. What multiplicative rate of change should Hal use in his function?
0.02
0.98
1.02
1.98
Answer
The multiplicative rate of change that should be in Hal’s function = 49/50=0.98
=9.8×10⁻¹
Explanation
The investment of $10,000 decreases by 2% every year. So the following year is usually (100 - 2)=98% of the previous year. This is a geometric progression.
In this case the first term = 10000
The second term = 98% × 10000 = 9800.
The common ratio = 9800/10000=49/50
The multiplicative rate of change that should be in Hal’s function = 49/50=0.98.
The equation of the exponential rate would be;
10,000ₓ0.98ⁿ.
where n is the number years.
Hope his helps! ;)
what is the value of x in the equation 4x + 1.3 = -7.9
Answer:
x = - 2.3Step-by-step explanation:
4x + 1.3 = -7.94x = -7.9 - 1.34x = -9.2x = -9.2/4x = - 2.3Answer:
[tex]4x + 1.3 = - 7.9 \\ 4x = - 1.3 - 7.9 \\ 4x = - 9.2 \\ x = \frac{-9.2}{4} \\ \boxed{x =- 2.3}[/tex]
-2.3 is the right answer.Can someone please help me with this and show work if you can .
Answer:
see in step 2, he added 20 at x² + 8x - 70 and 0
but he must add 70 at x² + 8x - 70 and 0 to have x² + 8x = 70
Step-by-step explanation:
Find the equation of the line parallel to the line containing points
(2,3) and (0, -5) that passes through (-1,7)
Answer:B
Step-by-step explanation: I took the test already trust me it is correct
is it function or non function?
Answer:
function
Step-by-step explanation:
Answer:i Believe its a. non Function sorry if. Im. Wrong
Which graph is proportional?
Answer:
I think 3 if im wrong im sorry.
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
Use the distributive property to write an equivalent expression.
2/3 (3x - 5)
Answer:
2x - 10/3
Step-by-step explanation:
What is the answer to 243 x 1/3?
Answer:
81
Step-by-step explanation: