Answer:
y=2x-2
Step-by-step explanation:
y=mx+b
10-4/6-3
6/3
2
y=2x+b
4=2(3)+b
4=6+b
b=-2
y=2x-2
Hope this helps plz hit the crown :D
7. Sound travels through air at 330 meters per second. How long will it take a bat's cry to reach its prey and echo back if the prey is 1 meter away? Round to the nearest thousandth of a second.
show your work pls and this is my 3rd time asking LOL
It takes the sound of a bat's cry 1/165 seconds to reach its prey and echo back
How to determine how long will it take a bat's cry to reach its prey and echo back?The given parameters are
Speed = 330 meters per second
Distance = 1 meters
The time taken to get to the prey is calculated as
Speed =Distance/Time
Substitute the known values in the above equation
So, we have
330 = 1/Time
Cross multiply the factors of the equation
So, we have
Time * 330 = 1
Divide both sides of the equation by 330
So, we have
Time 1 = 1/330
Similarly, the time taken to get from the prey is calculated as
Speed =Distance/Time
Substitute the known values in the above equation
So, we have
330 = 1/Time
Cross multiply the factors of the equation
So, we have
Time * 330 = 1
Divide both sides of the equation by 330
So, we have
Time 2 = 1/330
The time it takes a bat's cry to reach its prey and echo back is
Time = Time 1 + Time 2
So, we have
Time = 1/330 + 1/330
Evaluate the sum
So, we have
Time = 2/330
Simplify the quotient
So, we have
Time = 1/165
Hence, it takes the sound of a bat's cry 1/165 seconds to reach its prey and echo back
Read more about sound at
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Graph the point (-2,3) and 3 more points using a slope of -1/2
Answer:
Step-by-step explanation:
(-2,3) k=-1/2
Find the equation of the line:
[tex]y=kx+b[/tex]
[tex]\displaystyle\\3=-\frac{1}{2}*(-2)+b\\\\3=1+b\\ 3-1=1+b-1\\2=b\\Thus,\\y=-\frac{1}{2} x+2[/tex]
The required 3 more coordinates are (0, 2), (1, 3/2), and (2, 1).
Given that,
To determine points using a slope of -1/2 and the point (-2,3).
Coordinate, is represented as the points on the x-axis and y-axis of the graph.
Here,
using the slope-intercept form of the equation,
y = mx + c
we have a point (-2, 3) and m = -1/2
Put point and slope in the equation,
3 = -1/2 * -2 + c
c = 3 - 1
c = 2
Now equation would be
y = -1/2x + 2
Now,
For x = 0
y = 2
Coordinate will be (0,2)
For x = 1
y = -1/2 + 2
y = 3/2
Coordinate will be (1, 3/2)
For x = 2
y = -1/2 * 2 + 2
y = 1
Coordinate will be (2, 1)
Thus, the required 3 more coordinates are (0, 2), (1, 3/2), and (2, 1).
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25.
if CD 1 EF, m_HCE = 40 and mcHCD = 5x, find each missing value.
K
a) =
b) mZECH =
c) mZHCD =
d) nZGCF =
e) ZECG =
1 MZGCD =
D
H
Easy question
x=10
mECH=40
mHCD=50
mGCF=40
mECG=140
mGCD=13
Hence we found the solution.
Solve the inequality.
1/3+x2/8>_5/6
A)X<_17/18
B)x>_17/18
C)x>_1 17/18
D)x>_5/18
If the scale factor of Figure A to Figure B is 1:10, find the value of x.
А
24
B
Answer:4
Step-by-step explanation:
X will be equal to the even number up, 6 times 4= 24?
PLEASE HELP MY ASSIGNMENT IS DUE IN 3 HOURS!!!!
Answer:
8.9 Feet
Step-by-step explanation:
a^2+b^2 = c^2
Whats the Answer Giving Brainliest:D
Answer:
B
Step-by-step explanation:
They're each 4 times as miles away
I need help with factoring fractions can anybody help me please?[tex]\frac{s+10}{14} =3[/tex]
S will be 11.5, factoring the numbers, will equal that.
z = bma (solve for a)
Answer:
a = z/(bm)
General Formulas and Concepts:
Pre-Algebra
Equality PropertiesStep-by-step explanation:
Step 1: Define
z = bma
Step 2: Solve for a
Divide both sides by ma: z/(bm) = aRewrite: a = z/(bm)AXYZand AABCare similar triangles. Given the dimensions shown in the diagram, what is the
area of AABC? Express the answer in square units.
area in square units
Answer:
send the diagram pls. You can add it to the question.
Answer:
3.528
Step-by-step explanation:
If the density of quartz is 3.5 g/cm3 and the volume is 20 cm3 then what is the mass of this piece of quart?
Mass = density x volume
Mass = 3.5 x 20 = 70 grams
Evaluate: -X - y when x = -12 and y = 2 A. 16 B. -10 C. -14 D. 10 O E. 14 please help
Answer:
- x - y
-(-12) -(2)
12-2
10 the answer is D
Determine whether y varies directly with x. If so,
find the constant of variation k and write the
equation
x y
7 14
21 42
63 126
189 378
Answer:
Yes.
Step-by-step explanation:
They both multiply by 3. K=3
x1=x0*3
x2=x1*3....
y1=y0*3
Y2=y1*3....
Answer:
see explanation
Step-by-step explanation:
If y varies directly with x then the equation relating them is
y = kx ← k is the constant of variation and
k = [tex]\frac{y}{x}[/tex]
Check this ratio for each ordered pair, that is
k = [tex]\frac{14}{7}[/tex] = [tex]\frac{42}{21}[/tex] = [tex]\frac{126}{63}[/tex] = [tex]\frac{378}{189}[/tex] = 2
Thus k = 2 and
y = 2x ← equation of variation
HELP PLS
An oil company fills 1 over 10 of a tank in 1 over 5 hour. At this rate, which expression can be used to determine how long it will take for the tank to fill completely? (1 point)
a
1 over 5 • 10 hours
b
1 over 10 • 5 hours
c
1 over 5 • 1 over 10 hour
d
5 • 10 hours
Given that,
An oil company fills 1 over 10 of a tank in 1 over 5 hour.
To find,
How long it will take for the tank to fill completely.
Solution,
Let it takes t time to fill the tank completely. It can be calculated as follows :
[tex]t=\dfrac{\dfrac{1}{10}}{\dfrac{1}{5}}\ \text{hours}\\\\=\dfrac{1}{10}\times 5\ \text{hours}[/tex]
Hence, the rate is "1 over 10 • 5 hours ". The correct option is (b).
Estimate the sum of the decimals below by rounding each summand to the
nearest whole number. Enter your answer in the space provided.
1.902
4.837
+ 2.565
Answer:
it would be rounded to 9 as the nearest whole number (the number in decimal form is 9.304 when added up to get the sum)
solve the right angle trig problem. round to the nearest tenth.
Answer:
x ≈ 36.9
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Trigonometry
SOHCAHTOA[Right Triangles Only] sin∅ = opposite over hypotenuseStep-by-step explanation:
Step 1: Define
We are given a right triangle. We can use trig to find the missing length.
Step 2: Identify Variables
Angle = 31°
Opposite = 19
Hypotenuse = x
Step 3: Solve for x
Substitute: sin31° = 19/xMultiply x on both sides: xsin31° = 19Isolate x: x = 19/sin31°Evaluate: x = 36.8905Round: x ≈ 36.9Which procedure correctly simplifies the expression below?
-(x + 3) – 2(4x – 3)
A.
Step 1: –x – 3 – 8x + 6
Step 2: -9x +3
B.
Step 1: –x + 3 – 8x + 6
Step 2: -9x + 9
C.
Step 1: –x + 3 – 8x + 6
Step 2: -9x + 9
D.
Step 1: – x -3 – 8x – 6
Step 2: -9x – 6
Answer:
uhhh..... yes??
The correct method to proceed for simplification of the expression →
- (x + 3) – 2(4x – 3) are -
Step 1 : –x – 3 – 8x + 6
Step 2 : -9x +3
What is expression in mathematics?Expressions in math are mathematical statements that have a minimum of two terms containing numbers or variables, or both, connected by an operator in between.
Given is the following expression -
-(x + 3) – 2(4x – 3)
The given expression is -
-(x + 3) – 2(4x – 3)
The correct method to proceed for simplification is as follows -
- x - 3 - 8x + 6
- x - 8x - 3 + 6
-9x + 3
Therefore, the correct method to proceed for simplification of the expression → - (x + 3) – 2(4x – 3) are -
Step 1 : –x – 3 – 8x + 6
Step 2 : -9x +3
To solve more questions on simplification of expressions, visit the link below-
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Can someone please help me
Answer:
z the N emotionalism
Step-by-step explanation:
The compensation condescension c'mon vegetarianism
Kari's paper cup holds 6 fluid ounces. If one ounce is equivalent to 29.6 milliliters, how many milliliters does her paper cup hold?
Answer:
3245.8
Step-by-step explanation:
Answer:177.6 millimeters
Step-by-step explanation:
Keith wants to place a picture frame in the center of a wall that is 14 5/6 feet wide. The picture is 1 1/2 feet wide.
How many feet from each side of the wall must the frame be so that it is centered?
A. 7
B. 6 2/3
C. 6 1/2
D. 6 1/2
E. 6
Answer:
HM
Step-by-step explanation:
dddd
whats the answer 6+1
Answer:
7
Step-by-step explanation:
Add 1 to six and u get seven.
a department store is having a special sale on shirts. The price of the shirts is decreased by 10% each day of the sale. if the original price of a shirt in the department stire is $40, about how many days will it take for the price of the shirt to be less than $10?
Answer: about 14 days or 2 weeks
Step-by-step explanation:
1
Write the following equation in standard form:
y+4=
(x – 12)
3
PLEASE HELP MEE
Answer:
y-3x=-32
Step-by-step explanation:
y+4=3x-36
y-3x=-40
There are 24 students in Mrs. Cole's class
and 19 students in Mr. Garmen's class.
How many students are in the two classes?
Answer:
it would be 43 in both classes.
Answer:
43 students
Step-by-step explanation:
24+19=43
Hope It Helps
Sorry If I'm Wrong
Please Help Me If You Can, Tysm
Answer:
-2/3 is the answer I believe
Su cara estaba palida Metáfora
Answer:
do you want us to make a metaphor ?
THROUGH THE TUNNEL- How will Jerry's relationship with his mother change as a consequence of his tunnel experience?
Answer:
what tunnel
Step-by-step explanation:
I will give brainlist!
Answer:
The length of x is 4
Step-by-step explanation:
The scale factor is Large/small where 10/8 which is DF/AC.
THE SCALE factor is 5/4.
To find the length of X is in AB we use the scale factor 5/4 and the corresponding DE.
5/4 = DE/AB
5/4 = 5/X
X = 4
To find Y in EF will use the corresponding BC which is 6.
5/4 = EF/BC
5/4 = Y/6
Y= 7.5
info: use CORRESPONDING ABC AND DEF .
Answer:
Length is equal to 4. I think
Step-by-step explanation:
110x + 120x(2x-5)=1850 HELP PLS ITS URGENT! I just need an answer, thank you!!
Answer:
if you gogle it graph will come up
i have tried my hardest but this is the best answer i could come up with
J has a loan of $42,350. This loan has a simple interest rate of 8% per year. What is the amount
of interest that will be charged on this loan at the end of two years?
Answer:
6776
Step-by-step explanation:
8℅ = 0.08
0.08 x 42350 = 3388
3388 x 2 = 6776