Answer:
Step 1
Step-by-step explanation:
they were supposed to multiply 2x by 4 and -1 by 4 but they only multiplied 2x by 4.
Answer:
B. Incorrect with error in STEP 1
Step-by-step explanation:
3x - x + 4 = 4(2x - 1)
Step 1: Simplify
2x + 4 = 8x - 4
Step 2: Subtract 8x from both sides.
2x+4−8x=8x−4−8x
−6x+4=−4
Step 3: Subtract 4 from both sides.
−6x+4−4=−4−4
−6x=−8
Step 4: Divide both sides by -6.
-6x/-6 = -8/-6
x = 4/3
so, the other answer is wrong because she did not multiply the numbers in the parenthesis correctly
Solve for y 8x-7y=23 (fill all of the boxes)
Answer:
i think this is the correct answer
Step-by-step explanation:
Simplifying
8x + -7y = 23
Solving
8x + -7y = 23
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '7y' to each side of the equation.
8x + -7y + 7y = 23 + 7y
Combine like terms: -7y + 7y = 0
8x + 0 = 23 + 7y
8x = 23 + 7y
Divide each side by '8'.
x = 2.875 + 0.875y
Simplifying
x = 2.875 + 0.875y
Find the area of the shaded region Use 3.14 for z. Une pencil and paper What would happen to the area if one of the
dimensions were changed? Explain your reasoning
C
154
173
de sort HH Đ H )
The area is approximately
(Round to the nearest hundredh as needed)
I NEED HELP
The area of shaded region = area of triangle - area of circle = 33.73 sq. m.
What is the Area of Triangle and Circle?Area of circle = πr²
Area of triangle = 1/2(base × height)
The area of the shaded region = area of triangle - area of circle
= 1/2(14 × 12) - π × 4²
Area of shaded region = 84 - 50.27
Area of shaded region = area of triangle - area of circle = 33.73 sq. m
Learn more about area of triangle on:
https://brainly.com/question/21735282
From the observation deck of a skyscraper, Bashir measures a 45^{\circ} the angle of depression to a ship in the harbor below. If the observation deck is 1057 feet high, what is the horizontal distance from the base of the skyscraper out to the ship? Round your answer to the nearest hundredth of a foot if necessary.
g(x) is a function as defined below 9(x) = 3 If you input 2 into g(x), what do you get for an output? Enter your answer in the simplest form in the space provided below. (If your answer is a decimal number, round it to two decimal places.) Example answer: 42.63
Answer:
The answer is 0.33 <3
Step-by-step explanation:
i put this here so its easier to see that answer then the steps :)! Try gauth math, its a great app! Just take a picture of a question and a expert will give you the right answer, and explanation.
Have a blessed week! :)
PLEASE HELP DO BOTH A AND B PARTS PLEASE :)
Answer:
Market (3, 8)
Park (2, 5)
Lily's house (4, 3)
School (7, 6)
Step-by-step explanation:
E2023
Answer:
see attached diagram
market = (3, 8)
Step-by-step explanation:
Park = (2, 5)
Find the number 2 on the x-axis, then count up 5 units
Park = (2, 5)
x-coordinate: 1 unit to the right = 2 + 1 = 3
y-coordinate: 3 units up = 5 + 3 = 8
Therefore, market = (3, 8)
The angle of elevation of the sun is 39° from the ground. A business building downtown casts a shadow that is 89 m long. How tall is the building?
[tex]\tan 39 \textdegree = \displaystyle \frac{h}{89}\\\\89\tan 39 \textdegree = h\\\\h = 72[/tex]Answer:
72 m
Step-by-step explanation:
Hi there!
Using the given information, we can construct a diagram. Please see the attached image.
We need to solve for the height of the building, or the length of the side opposite the angle that measures 39°. Given the only other piece of information is the length of its adjacent side, which is 89 m, we can use the tangent ratio to solve for the height:
[tex]\tan \theta = \displaystyle \frac{opposite}{adjacent}[/tex]
Plug in the given values:
tan 39° = h/89
89 tan 39° = h
h = 72
Therefore, the height of the building is 72 m.
I hope this helps!
Can 445 be simplified?
no it can not be simplified and
Each of 8 girls has
a button collection.
Each girl has 8
buttons in her
collection. How
many total buttons
are there in the 8
collections?
Answer: there are 64 buttons because 8*8=64
14° plus what equals 90°
How many solutions does the system have? x y = 5 x y = 6 none one two infinite.
Answer:
none
Step-by-step explanation:
{ x=5-y
{ x=y=6
substitute the given value of x into the equation x+y=6
5-y+y=6
the equation for y
y∈⊘
pls help i forgot how to do this
Find the area of the parallelogram.
Answer:
3484 [tex]ft^{2}[/tex]Step-by-step explanation:
Given,
The figure is of a parallelogram
Height (h) of the parallelogram = 52 ft.
Since,
In a parallelogram opposite sides are equal so,
Corresponding base to the height of the parallelogram is = 67 ft.
Therefore,
Area of the given parallelogram
= base × height
[On substituting their values]= 67 ft. × 52 ft.
[On multiplying]= 3484 [tex]ft^{2}[/tex]
Hence,
The required area of the parallelogram is 3484 [tex]ft^{2}[/tex] (Ans)
Carlos designs the skateboard ramp shown in the diagram, 132in h? 22 degrees Enter the height of the ramp (h), in inches, Round your answer to the nearest whole inch.
The height of the ramp is 49.45in
Data;
Length of the skateboard = 132inAngle between the height and skateboard = 22 degreesheight of the skateboard rampTrigonometric RatioTo solve this problem, we can use trigonometric ratio SOHCAHTOA
Since we have the value of the angle and length of the ramp, this can be illustrated as hypotenuse and angle between the hypotenuse and opposite of the right-angle triangle.
From the information above, we have angle and hypothenuse but we need to solve for the opposite of the right-angle triangle. The sine angle can solve this problem.
[tex]sin \theta = \frac{opposite}{hypothenuse} \\sin 22 = \frac{x}{132} \\x = 132 sin 22\\x = 49.45 in[/tex]
The height of the ramp is 49.45in
Learn more on trigonometric ratios here;
https://brainly.com/question/12172664
Find the value of X.
50°
90°
100°
Answer: 60 degrees
Step-by-step explanation:
add 90 50 and 100
= 240
Total of all interior angles should be 360
So 360-240=120
Straight line: 180 degrees
180-120=60
Six times a number increased by 4 is no less than 50
Answer:
Number>2
Step-by-step explanation:
If number is 1 then 6×1=6
6×4=24
which is less than 50
If number is 2 then 6×2=12
12×4=48
which is less than 50
.PLEASE HELP!!
Paul opens a savings account with $350. He saves $150 per month. Assume that he does not withdraw
money or make any additional deposits.
a. Write a linear model that represents the total amount of money Paul deposits into his account after m months.
b. After how many months will Paul have $2,000?
Answer:
350+150m=total money
11 months
Step-by-step explanation:
you just put in the number of months that have passed in for m and solve for total money.
After how many months will Paul have $2,000?
350+150m=2000
350-350+150m=2000-350
150m=1650
150m/150=1650/150
m=11
Write an equation in slope-intercept form for the line with slope -6 and y-intercept 7. Then graph the line.
Answer:
y = -6x + 7
Step-by-step explanation:
Slope-intercept form: y = mx + b
where:
m is the slopeb is the y-intercept (when x = 0)Given: a line with a slope of -6, and y-intercept of 7
Equation: y = -6x + 7
y-intercept: (0, 7)Randomly select x-values that will help you graph the equation:
when x = -2:
y = -6(-2) + 7 [multiply]
y = 12 + 7 [add]
y = 19
coordinate: (-2, 19)
when x = 1:
y = -6(1) + 7 [multiply]
y = -6 + 7 [add]
y = 1
coordinate: (1, 1)
when x = 2:
y = -6(2) + 7 [multiply]
y = -12 + 7 [add]
y = -5
coordinate: (2, -5)
These coordinates fall on the line for the linear equation. Graph them on a coordinate plane, and they should give you the line for the equation.
Max is mountain hiking at a constant rate. This equation y = 10x 30 can be used to represent this situation, where y is Max's elevation in meters and x is the number of hours Max has been hiking. Which statement best describes Max's elevation, given this equation?.
Answer:
D.) Max started at a height of 30 meters and is ascending at 10 meters per hour.
Step-by-step explanation:
This equation y = 10x + 30 can be used to represent this situation, where y is Max's elevation in meters and x is the number of hours Max has been hiking
Max started at the height of 30 meters and is ascending at a rate of 10 meters per hour. Then the correct option is A.
What is the linear system?It is a system of an equation in which the highest power of the variable is always 1. A one-dimension figure that has no width. It is a combination of infinite points side by side.
Given
The equation is y = 10x + 30.
Where y is Max's elevation in meters and x is the number of hours.
Max has been hiking.
From the equation, we can conclude.
Max is ascending at a rate of 10 meters per hour.
Max is at the height of 30 meters at the starting.
Thus, option A is correct.
More about the linear system link is given below.
https://brainly.com/question/20379472
Can you please solve this?!?
[tex]\bold{\huge{\blue{\underline{ Solution }}}}[/tex]
Given :-Here, We have,
[tex]\sf{\dfrac{a}{b}}{\sf{=}}{\sf{\dfrac{b}{c}}}{\sf{=}}{\sf{\dfrac{c}{d}}}[/tex]To Prove :-We have to prove that √(a - b - c)(b-c-d) = √ab-√bc-√cdLet's Begin :-[tex]\sf{√(a-b-c)(b-c-d)=√ab-√bc-√cd}[/tex]
Let [tex]\sf{\dfrac{a}{b}}{\sf{=}}{\sf{\dfrac{b}{c}}}{\sf{=}}{\sf{\dfrac{c}{d}}}{\sf{ = k}} [/tex]Therefore,From above, We can conclude that,
a = bk, b = ck, c = dk
a = dk³ , b = dk² , c = dk
By solving RHS :-
[tex]\sf{√(a - b - c)(b-c-d) }[/tex]
[tex]\sf{√(dk³ - dk² - dk) (dk² - dk - d) }[/tex]
[tex]\sf{√d(k³- k² - k) d(k² - k - 1)}[/tex]
[tex]\sf{d√(k³- k² - k) d(k² - k - 1)}[/tex]
[tex]\sf{d√k(k²- k - 1)(k² - k - 1)}[/tex]
[tex]\sf{d(k²- k - 1)√k ...eq(1)}[/tex]
By solving LHS :-
[tex]\sf{√ab - √bc - √cd}[/tex]
[tex]\sf{√dk³(dk²) - √dk²(dk)-√dk(d)}[/tex]
[tex]\sf{√d²k^5 - √ d²k³ - √d²k}[/tex]
[tex]\sf{dk²√k - dk√k - d√k}[/tex]
[tex]\sf{(dk² - dk - d)√k}[/tex]
[tex]\sf{d(k²- k - 1)√k...eq(2)}[/tex]
From eq(1) and eq(2)
[tex]\bold{\red{ LHS = RHS }}[/tex]
That is,
[tex]\sf{√(a-b-c)(b-c-d)=√ab-√bc-√cd}[/tex]
Hence proved .Yes, the RHS and the LHS are equal/
Calculations and Parameters:Given:
[tex]a/b= b/c = c/d[/tex]
We have to prove that √(a - b - c)(b-c-d) = √ab-√bc-√cd
Hence, after we expand the brackets and evaluate, we see that:
a = bk, b = ck, c = dka = dk³ , b = dk² , c = dkAfter the evaluation of the RHS and LHS, we can see that
RHS= LHS .
Read more about maths expressions here:
https://brainly.com/question/2164351
Which of the following sets of angles of a triangle represents an acute triangle?
30°, 60°, 90°
60°, 65°, 55°
40°, 40°, 100°
45°, 40°, 95°
I think it's B, but I think i am wrong. Please explain...
Answer: It's B, great job!
Step-by-step explanation: An acute angle measures less than 90 degrees. 60,65, and 55 are all under 90.
A prism has a length of l, width of 3 feet, and height of 7 feet.
The volume of this rectangular prism is 84 ft3.
What is the length of the prism?
28 ft
12 ft
8 ft
4 ft
A prism has a length of l, width of 3 feet, and height of 7 feet.
The volume of this rectangular prism is 84 ft3.
What is the length of the prism?
28 ft
12 ft
8 ft
4 ft
Answer:
they are right
Step-by-step explanation:
Which function is linear?
Answer:
A,B,and D is a linear equation
Answer:
B. 4x - y + 2.5 = 0
Step-by-step explanation:
Its linear as it doesn't have any square or division.
ignore - ², division, xy being together. if so option D, C, A cancels out.
Fill in the table using this function rule.
y = 4x + 1
HELP PLEASE NOW!!! no links plz
Answer:
y=4x+1
for x=3
y=4(3)+1
y=12+1
y=13
for x=6
y=4(6)+1
y=24+1
y=25
for x=8
y=4(8)+1
y=32+1
y=33
for x=10
y=4x+1
y=4(10)+1
y=40+1
y=41
x y
3 13
6 25
8 33
10 41
please pick me brainliest.
I HOPE IT HELPED
QUESTION 5
Given the following two functions:
f(x)=x2+1 and g(x)=x+ 1, find (g+f) (-1)
Answer:
(g+f)(-1)=2
Step-by-step explanation:
f(x)x²+1
g(x)=x+1
(g+f)(x)= x+1+x²+1
(g+f)(-1)=(-1)+1(-1)²+1
(g+f)(-1)=(-1)+1+(-1)²+1
(g+f)(-1)=2
Hope this helps u! :)
i need help w this (20 points)
Answer:
the answer for B M Y is 40
Step-by-step explanation
Part B answer to X M Y is 85
Please answer please and what do you do to solve this?
9+4(a+5)
a) 18+4a B)29+4a
C) 33+4a D) 23+4a
Answer:
B) 29 +4a
Step-by-step explanation:
for this question we need to expand the brackets. to do this you would times everything in the brackets separately by 4, 4 times a which is 4a and 4 times 5 which is 20.
this would creat a sum of 9+4a+20
now we can add together the like terms which in this case are 20 and 9 making the whole sum 29 +4a
this is how you expand the brackets.
deserving of a brainliest?
Answer: B) 29+4a
Step-by-step explanation:
Distribute the parentheses first as multiplication comes before addition:
9+4(a+5)
9+4a+20
Add 9 and 20:
29+4a
what does the maximum point represent in the function?
a. Y-Int
b. x=0
c. height
d.vertex
On Dec. 4, 1998, sunrise was at 6:58 and sunset was at 4:12.
The length of the daylight was:
O A. 8 hr 15 min
B. 9 hr 3 min
O c. 9 hr 12 min
OD. 9 hr 14 min
E. 10 hr 15 min
PLS HELP
I will give brainliest
Answer:
2,-5,-12,-19,-26
Step-by-step explanation:
-7n +9
-7(1) +9 = 2
-7(2)+ 9= -5
-7(3)+9 = -12
-7(4)+9 = -19
-7(5)+9 = -26
Can someone help me with this question please
Answer:
10.3 cm
Step-by-step explanation:
There are a few ways to do this.
1)Using the law of cosines, you have ...
b² = a² +c² -2ac·cos(B)
b² = 11² +11² -2(11)(11)·cos(56°) = 106.67
b = √106.675 ≈ 10.3
AC = 10.3 cm
__
2)Using trig functions. When you draw an altitude in this isosceles triangle from B to AC, it divides AC in half, and it divides angle B in half. The sine relation can help here:
Sin = Opposite/Adjacent
sin(56°/2) = (AC/2)/(11 cm)
AC = (22 cm)sin(28°) ≈ 10.3 cm
__
3)Using a triangle solver, you can find the value of AC to be about 10.3 cm. Triangle solvers are available as apps and on the web. Your graphing calculator may have one. See attached for the results from a nice solver available on the web. Units are cm.
Which number is closest to 63(square root)?
A. 8.4
B. 7.2
C. 7.9
D. 6.7
Answer:
C-7.9
Step-by-step explanation:
Because the square root is actually 7.93
Answer:
C. 7.9
Step-by-step explanation:
Do the square root of 63.
[tex]\sqrt{63} = 7.93725[/tex]
Your answer isn't perfect, but it's asking for which number is the closest to the [tex]\sqrt{63}[/tex].
[tex]\sqrt{63}[/tex] ≈ [tex]7.9[/tex]