Answer:
-5 7/8 = -5.875
Step-by-step explanation:
Before swimming to the top, the swimmer was 5.875 ft down
Answer:
-5 7/8 feet
Step-by-step explanation:
The opposite of 5.675 is 5 7/8 feet (I don't know if the explanation is right but the answer is)
Rewriting rational equations, 4 Parts, 25 pts. Please help, thanks!
Answer:
All parts are attached below :)
find the value of please help me
Answer:
10 sqrt(10)
Step-by-step explanation:
sqrt(1000)
sqrt(100*10)
we know that sqrt(a*b) = sqrt(a) sqrt(b)
sqrt(100) * sqrt(10)
10 sqrt(10)
length of the bases and h is the height, to answer the question. How many square feet of grass
are there on a trapezoidal field with a height of 75 ft and bases of 125 ft and 81 ft?
Answer:
There are 7,725 square feet of grass on the trapezoidal field
Step-by-step explanation:
Here in this question, we are interested in calculating the square feet of grass present on the trapezoidal field.
What this question is actually asking us is to calculate the area of the trapezoid-shaped grass field.
To calculate this area, what we need to do
simply is to use the formula for the area of a trapezoid.
Mathematically, the area of a trapezoid can be calculated using the formula;
Area of trapezoid = 1/2 * (a + b) * h
where a and b refers to the length of the parallel lengths of the trapezoid and h refers to the height of the trapezoid.
From the question;
a, b = 81ft and 125 ft
h = 75 ft
Substituting these values, we have :
Area = 1/2 * (81 + 125) * 75
Area = 1/2 * 206 * 75 = 83 * 75 = 7,725 ft^2
Where does the graph of the line y = x - 2 intersect the x-axis?
O A. (0, 2)
O B. (2,0)
O C. (0, -2)
0 D. (-2, 0)
Answer:
Where does the graph of the line y = x - 2 intersect the x-axis?
O A. (0, 2)
O B. (2,0)
O C. (0, -2)
0 D. (-2, 0)
C. ( 0 , -2 )
Step-by-step explanation:
I hope this helps
Follow // Followback
The line of y=x-2 intersects the x axis at (2,0).
To find the points where line intersect the x-axis.
What is co-ordinate geometry?Coordinate geometry is defined as the study of geometry using the coordinate points. Coordinate geometry is required to provide a link between algebra and geometry through the use of line and curve graphs.
The x-axis is defined as being at y=0 (look at a graph, the x-axis intersects the y-axis at y=0). Therefore, all you need to do is put in 0 for y, and solve for x.
y=x-2
put in 0 for y
0=x-2
add 2 to both sides
2+0=x-2 +2
x=2
Therefore the line of y=x-2 intersects the x axis at (2,0).
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look at picture and solve
Step-by-step explanation:
As we can see, the line on the bottom is a perfectly straight 180º line, so the two angles, a and 50º are supplementary angles. Remember: Supplementary angles = 180º, and complementary angles = 90º.
Since this is a 180º line, all we have to do is to subtract 50 from 180 to get our angle a.
180-50 = 130º
Our answer: a = 130º
6. Find the supplements of the following
c) x + 45°
angles:
b) 108°
d) į right angle
a) 65°
Answer:
c) 135°
b) 72°
d) 90°
a) 115°
Step-by-step explanation:
A supplementary pair are two angles whose measures added is equal to 180°. Set an equation with the given values plus a number (the other angle) equal to 180:
c) [tex]x+45=180[/tex]
Solve. Subtract 45 from both sides:
[tex]x+45-45=180-45\\\\x=135[/tex]
The supplement is 135°
b) [tex]108+x=180[/tex]
Solve. Subtract 108 from both sides:
[tex]108-108+x=180-108\\\\x=72[/tex]
The supplement is 72°
d) [tex]x+90=180[/tex]
Solve. Subtract 90 from both sides:
[tex]x+90-90=180-90\\\\x=90[/tex]
The supplement is 90°
a) [tex]x+65=180[/tex]
Solve. Subtract 65 from both sides:
[tex]x+65-65=180-65\\\\x=115[/tex]
The supplement is 115°
:Done
Which point is the best estimate of 11?
А А.
B
D
E
toh
to
.
3
4
Pls help me it’s due today! >_
Answer:
B
Step-by-step explanation:
Step 1: Find √11
√11 is between perfect squares √9 and √16
√9 < √11 < √16
3 < √11 < 4
So it is between 3 and 4
Step 2: Evaluate
√11 = 3.31662
Closest dot is B.
Kareem and Kira each opened a savings account today. Kareem opened his account with a starting amount of $770, and he is going to take out $30 per month. Kira opened her account with a starting amount of $935, and she is going to take out $45 per month. Let x be the number of months after today.
Required:
How many months will it take you to save enough money to buy 10 acres of land on Mars?
Answer:
Step-by-step explanation:
The question is not complete, i think the correct question is:
Kareem and Kira each opened a savings account today. Kareem opened his account with a starting amount of $770, and he is going to deposit $30 per month. Kira opened her account with a starting amount of $935, and she is going to deposit $45 per month. Let x be the number of months after today
Let us assume that each acre of land on Mars cost $107.
a) For Kareem account, she started with $770 and would deposit $30 per month. Let y represent the money deposited after x month. This can be represented by the equation:
y = 770 + 30x
Since each acre cost $107, 10 acre would cost $1070. Therefore $1070 is needed to be saved. To find the number of months, substitute y = 1070 and solve. Therefore:
1070 = 770 + 30x
1070 - 770 = 30x
30 x = 300
x = 300/30
x = 10
It would take 10 months for Kareem to buy 10 acres of land
b) For Kira account, she started with $935 and would deposit $45 per month. This can be represented by the equation:
y = 935 + 45x
Since each acre cost $107, 10 acre would cost $1070. Therefore $1070 is needed to be saved. To find the number of months, substitute y = 1070 and solve. Therefore:
1070 = 935 + 45x
1070 - 935 = 45x
45 x = 135
x = 3
It would take 3 months for Kira to buy 10 acres of land
Write the expression below as a single logarithm. log7 x+ log7 8-log7 9(answer options in picture).
Answer:
The last option log_7*(8x/9)
Step-by-step explanation:
You can use the rule of logarithms to solve this. In this expression you have addition and subtraction of logs so knowing that you can use multiplication and division to simplify this into a single log.
Need help on INEQUALITY
Answer:
A and D
Step-by-step explanation:
3 - 5x > 2
= -5x > 2-3
= -5x > -1
= x < 1/5
Answer:
The correct answer is A. x = 1 or D. x = 7.
Step-by-step explanation
For this problem, we can substitute each of the values and see which ones make the inequality true.
Using x = 1
3 - 5(1) > 2
3 - 5 > 2
-2 > 2
This is not true, so this is not our solution. However, I will show the rest of the solutions anyways.
Using x = 0
3 - 5(0) > 2
3 - 0 > 2
3 > 2
This is true, so x = 0 is a solution to the inequality.
Using x = -1
3 - 5(-1) > 2
3 + 5 > 2
8 > 2
This is true, so x = -1 is a solution to the inequality.
Using x = 7
3 - 5(7) > 2
3 - 35 > 2
-32 > 2
This is not true, so x = 7 is not a solution to the inequality.
Given that y=18 + 3x² (i) find the value of y when x= -2
Answer:
y=30
Step-by-step explanation:
f(-2)=18+3(-2)^2
f(-2)=18+3*4
f(-2)=18+12
f(-2)=30
Answer:
y= 6
Step-by-step explanation:
substitute x= -2 in the equation y=18+3x^2
from there you'll get your final answer
find the sum of
137 and -354
Answer:
-217
Step-by-step explanation:
Add them both together because it is asking for the "sum".
-354+137= -217
Prove the identity
[tex]4 \sin(x) \cos(x) = \frac{ \sin(4x) }{ \cos(2x) } [/tex]
=> R.H.S
[tex] \frac{ \sin(4x) }{ \cos(2x) } = \frac{ \sin(2x + 2x) }{ \cos(2x) } [/tex]
[tex] = \frac{ 2 \sin(2x) \cos(2x) }{ \cos(2x) } [/tex]
[tex] = 2 \sin(2x) [/tex]
[tex] = 2(2 \sin(x) \cos(x) )[/tex]
[tex] = 4 \sin(x) \cos(x) [/tex]
R.H.S = L.H.S
PROVED!
Answer:
Below
Step-by-step explanation:
● 4 sin(x) cos(x) = sin(4x)/cos(2x)
Let's prove that:
● 4 sin(x) cos(x) cos(2x) = sin(4x)
It's easier to prove it than the first one
■■■■■■■■■■■■■■■■■■■■■■■■■■
● 4 sin(x) cos(x) cos (2x)
● [2 sin(x) cos(x)] 2 cos(2x)
We khow that [2 sin(x) cos(x)]= sin(2x)
So:
● sin(2x) 2 cos(2x)
Based on the same relation
● sin(4x)
It's proved
Plz help ASAP Will give brain and 100 points!!!! Is the equation x(x-6)=-5 a quadratic equation? 1. The equation is an quadratic equation because there is an x^2-term 2. The equation is not quadratic equation because the expression is not equal to zero. 3. The equation is not an quadratic equation because there is a term with degree higher than two. 4. The equation is not a quadratic equation because there is no x^2-term.
Answer:
Solution : First Option
Step-by-step explanation:
This equation is quadratic as there is a " x^2 " term present. If you were to expand the equation,
x(x - 6) = - 5,
x^2 - 6x = - 5,
x^2 - 6x + 5 = 0
As you can see this resembles a quadratic equation. Your solution will be the first option, 1. The equation is a quadratic equation because there is an x^2 term
Answer:
The equation is an quadratic equation because there is an x^2-term 2
Step-by-step explanation:
Q3) If B is directly proportional to A and B = 3 when A = 18, find the value of B when A = 24.
Answer:
B = 4
Step-by-step explanation:
Given that B is directly proportional to A then the equation relating them is
B = kA ← k is the constant of proportionality
To find k use the condition B = 3 when A = 18 , then
3 = 18k ( divide both sides by 18 )
k = [tex]\frac{3}{18}[/tex] = [tex]\frac{1}{6}[/tex]
B = [tex]\frac{1}{6}[/tex] A ← equation of proportion
When A = 24, then
B = [tex]\frac{1}{6}[/tex] × 24 = 4
Evaluate the expression:
x^2+2x−xy when x = 250 and y = −120
Answer:
33000
Step-by-step explanation:
Substituting 250 for x and -120 for y, we get:
(250)^2 + 2(250) - (250)(120) = 62500 + 500 - 30000, or
32500 + 500, or 33000
Which of the following statements is correct baded on the number line below?
Answer:B&D
Step-by-step explanation:
GUYS PLEASE HELP ME ILL MARK BRIANLIEST AND GIVE EXTRA POINTS I NEED IT ASAP
1. The sum of a number and 81 is greater than the product of 3 and that number. What are the possible values for the number?
2. Which is NOT a solution of the inequality LaTeX: 5-2x≥-3 (A) 0 (B) 2 (C) 4 (D) 5
3. Write the following statement as an inequality: 8 less than a number w is under 35.
4. Solve for t: 3-4t<19 5. Jason is saving up to buy a new phone that costs $490 (I wish they were still this cheap). So far, he's saved $175. He would like to buy the camera no later than 3 weeks from now. What is the inequality used to represent how much he must save every week to have enough money to purchase the camera? (hint: when the wording is tricky, as it is in this problem, solve the problem as if it were an equation. That is to say, as if Jason was trying to save the money in exactly 3 weeks. Then decide on the sign that makes most sense).
Q1
[tex]n > \frac{81}{2} [/tex]
Q2 D
sry I don't hv time to ans more
Deshaun needs to memorize words on a vocabulary list for Russian class. He has 24 words to memorize, and he is three-fourths done. How many words has Deshaun memorized so far?
Answer:
He has memorized 18 words
Step-by-step explanation:
(3/4)*24 = 18
Help needed ASAP will give brainliest.
Answer:
10
Step-by-step explanation:
We can show this as:
√90 = √9*10Since
9*9 < 9*10 < 10*10Then
9 < √90 < 10The closest number in the list is 10 as all the rest are greater than 10
Second choice is the correct one
●✴︎✴︎✴︎✴︎✴︎✴︎✴︎✴︎❀✴︎✴︎✴︎✴︎✴︎✴︎✴︎✴︎✴︎●
Hi my lil bunny!
❧⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯☙
[tex]\sqrt{90}[/tex]
[tex]= \sqrt{10}[/tex] (Decimal: 9.486833)
( I don't know it might be wrong )
❧⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯☙
●✴︎✴︎✴︎✴︎✴︎✴︎✴︎✴︎❀✴︎✴︎✴︎✴︎✴︎✴︎✴︎✴︎✴︎●
Have a great day/night!
❀*May*❀
Graph the line with the equation y = -1/2x – 7
Answer:
Step-by-step explanation:
y = -1/2 x – 7
when x is 0
y = -1/2(0) - 7
y = - 7
(0,-7)
when y is 0
0 = -1/2 x - 7
1/2 x = -7
x = -7(2)
x = -14
(-14,0)
The graph of equation y = -1/2x – 7 is shown in figure.
What is Equation of line?The equation of line in point-slope form passing through the points
(x₁ , y₁) and (x₂, y₂) with slope m is defined as;
⇒ y - y₁ = m (x - x₁)
Where, m = (y₂ - y₁) / (x₂ - x₁)
Given that;
The equation of line is,
⇒ y = - 1/2x - 7
Hence, We get;
The graph of equation y = -1/2x – 7 is shown in figure with slope - 1/2 and y - intercept is - 7.
Thus, The graph of equation y = -1/2x – 7 is shown in figure.
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Solve 2(3x+6)=3(x-9)
Answer:
-13
Step-by-step explanation:
See steps below:
2(3x+6)=3(x-9) ⇒ distribution6x + 12 = 3x - 27 ⇒ grouping like terms6x - 3x = -27 - 12 ⇒ simplifying3x = -39x= -39/3x = -13 ⇒ answer●✴︎✴︎✴︎✴︎✴︎✴︎✴︎✴︎❀✴︎✴︎✴︎✴︎✴︎✴︎✴︎✴︎✴︎●
Hi my lil bunny!
❧⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯☙
[tex]\boxed{-13}[/tex]
Let's solve your equation step-by-step.
[tex]2(3x+6)=3(x-9)[/tex]
Step 1: Simplify both sides of the equation.
[tex]2(3x+6)=3(x-9)[/tex]
[tex](2) (3x) + (2) (6) = (3)(^{x}) + (3) (-9)[/tex] (Distribute)
[tex]6x + 12 = 3x + -27[/tex]
[tex]6x + 12 = 3x -27[/tex]
Step 2: Subtract 3x from both sides.
[tex]6x + 12 - 3x = 3x - 27 - 3x\\3x + 12 = -27[/tex]
Step 3: Subtract 12 from both sides.
[tex]3x + 12 - 12 = -27 - 12\\3x = -39[/tex]
Step 4: Divide both sides by 3.
[tex]\frac{3x}{3} = \frac{-39}{3}\\x = -13[/tex]
❧⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯☙
●✴︎✴︎✴︎✴︎✴︎✴︎✴︎✴︎❀✴︎✴︎✴︎✴︎✴︎✴︎✴︎✴︎✴︎●
Have a great day/night!
❀*May*❀
what is the importance of federal system
The variable n represents the number of bikes in a shipping container. The weight of the container in pounds, including the
bikes, can be modeled using the expression 250 + 23 (n-1) How much will the container weigh with 20 bikes in it?
Given that :-
→ N represent the number of bikes .
→ Weight of container including bikes is 250+23(n-1) pounds.
To Find :-
→ Weight of container when we have 20 bikes.
Solution :-
→ Weight = 250+23(n-1) pounds
Putting the value of n here .
→ Weight = 250+23(20-1)
→ Weight = 250 +23(19)
→ Weight = 250 + 437
→ Weight of container is 687 pounds.An expression is defined as a set of numbers, variables, and mathematical operations. The container weight with 20 bikes in it will be 687.
What is an Expression?In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.
Given that the weight of the container in pounds, including the bikes, can be modeled using the expression 250 + 23 (n-1). Therefore, the container weighs 20 bikes in it will be,
Weight of container = 250 + 23(n - 1)
= 250 + 23(20 - 1)
= 250 + 23(19)
= 250 + 437
= 687
Hence, the container weight with 20 bikes in it will be 687.
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I have no clue what to do help please
Answer:
Hey there!
The question is basically asking for you to solve a fraction subtraction problem, and fill in the missing values as you solve.
The given problem is 2/3 - 1/2. However, we can't subtract right now, since the denominators are different.
2/3 can be expressed as 4/6, and 1/2 can be expressed as 3/6.
Thus, the missing denominator in line one is 6 and the missing numerator in line one is 3.
4/6-3/6=1/6.
Thus, the numerator in line two should be 1.
From top to bottom, the numbers in the three boxes should be 6, 3, and 1.
This can be a confusing topic, especially if you're just learning it. Let me know if you need additional help :)
Darrin is hanging 200 feet of Christmas garland on the fencing that encloses his rectangular front yard. The length is 5 feet less than 5 times the width. Find the length and width of the fencing. Give the measurements in decimal form.
Answer:
Length = 82.5 feet
Width = 17.5 feet
Step-by-step explanation:
The formula for the Perimeter of a rectangle = 2(Length + Width)
= 2L + 2W
We are told in the question that: Darrin is hanging 200 feet of Christmas garland on the fencing that encloses his rectangular front yard
Hence, The perimeter of the rectangular front yard = 200 feet
200 = 2( L + W).........Equation 1
Also, the length is 5 feet less than 5 times the width
L = 5W - 5
Hence,
200= 2(5W - 5 + W)
200 = 2(5W + W - 5)
200 = 2(6W - 5)
200 = 12W - 10
Collect the like terms
200 + 10 = 12W
210 = 12W
W = 210/12
W = 17.5 feet
Substitute 17.5 for W in Equation 1
200 = 2( L + W).........Equation 1
200 = 2( L + 17.5)
200 = 2L + 35
200 - 35 = 2L
2L = 165
L = 165/2
L = 82.5 feet
Therefore, the Length of the rectangular fence = 82.5 feet while the Width of the rectangular fence is 17.5 feet.
Ethan stands 256 cm at point C from a lamp post AB. He is 180 cm tall and his shadow from the lamp is 144 cm long. Find the height AB, in metres, of the lamp post.
Answer:500 cm
Step-by-step explanation:
Given
height of ethan = 180 cm
length of shadow =144 cm
Distance of ethan from lamp =256 cm
from diagram, we can write
[tex]\Rightarrow tan \theta =\frac{FC}{EC}\quad \ldots(i)[/tex]
[tex]\Rightarrow \tan \theta =\frac{AB}{BE}\quad \ldots (ii)[/tex]
From (i) and (ii) we get
[tex]\tan \theta =\frac{FC}{EC}=\frac{AB}{BE}[/tex]
[tex]\Rightarrow \frac{180}{144}=\frac{h}{144+256}[/tex]
[tex]\Rightarrow h=\frac{180}{144}\times 400[/tex]
[tex]\Rightarrow h=500\ cm[/tex]
So, height of lamp post AB is [tex]500\ cm[/tex]
Can someone give me the answers for the number frame and how you did it, I’m confused :)
Answer:
16, 56, ...
Step-by-step explanation:
It looks like you have to put in each cell the multiplication of the row and the column, so the columns are 2, 7, 4 etc., and the row is always 8.
First cell: 2x8 = 16
Second cell: 7x8 = 56
and so on
It teaches you to apply the multiplication in a random sequence; you should be able to do this in your head.
How to convert 9hours 36 minutes to a fraction
Answer:
Step-by-step explanation:
9*60+36= 540+ 36= 576 minutes
so it is = 576/ 60 hours
what is the answer to 1.2(x-3) +4 (x+7)
Answer:
5.2x + 24.4
Step-by-step explanation:
1.2(x-3) + 4 (x+7)
=1.2x - 3.6 + 4x + 28
=5.2x + 24.4
Hope this helps..