9514 1404 393
Answer:
41 km
Step-by-step explanation:
The first car is 32.5 km north after 1/2 hour. The second car is 25 km east after 1/2 hour. The Pythagorean theorem tells you the straight-line distance between them:
d = √(32.5² +25²) = √1681.25 ≈ 41.00
The cars are about 41 km apart after 1/2 hour.
Trình bày khái niệm và cách giải phương trình bậc nhất 1 ẩn, hệ phương trình bậc nhất 2 ẩn
find the midpoint of the segment with the given endpoints. (2,9) and (-8,-8)
Answer:
The midpoint is (-3, 1/2)
Step-by-step explanation:
To find the x coordinate of the midpoint, add the x coordinates of the endpoint and divide by 2
(2+-8)/2 = -6/2 = -3
To find the y coordinate of the midpoint, add the y coordinates of the endpoint and divide by 2
(9+-8)/2 = 1/2
The midpoint is (-3, 1/2)
Assume that I=E/(R+r) prove that 1/I=R/E+r/E ?
Explanation:
If [tex]I=\frac E{R+r}[/tex] then taking the reciprocal gives
[tex]\frac1I=\frac1{E/(R+r)}=\frac{R+r}E=\frac RE+\frac rE[/tex]
In the figure, angle DEF is 34x + 11, angle DEG is 2x + 24, and angle GEF is 3x + 12. The value of x is ___.
Answer:
25/29
Step-by-step explanation:
34x+11=2x+24+3x+12
34x+11=5x+36
34x-5x=36-11
29x=25
x=25/29
what did one function say to the other function?
Answer:
2，3
Step-by-step explanation:
for number 1
please help with the screenshot
Answer:
7.5
Step-by-step explanation:
Triangles: RST and RPQ are similar so
Triangle RST has 12.5 and x
Triangle RPQ has 20 (comes from 12.5+7.5) and x+4.5
Therefore you divide
x/x+4.5 = 12.5/20
20x= 12.5x+56.25
7.5x=56.25
x=7.5
4. (k? - 4k+7)+(k? +9k – 3)
ON SA
Answer:
7k + 4
Step-by-step explanation:
I don't know what ON SA means, but here's how I solved it:
(k - 4k + 7) + (k + 9k – 3)
(-3k + 7) + (10k - 3)
(-3k + 10k) + (7 - 3)
7k + 4
When commercial aircraft are inspected, wing cracks are reported as nonexistent, detectable, or critical. The history of a particular fleet indicates that 70% of the planes inspected have no wing cracks, 25% have detectable wing cracks, and 5% have critical wing cracks. Five planes are randomly selected. Find the probability that
a. one has a critical crack, two have detectable cracks, and two have no cracks.
b. at least one plane has critical cracks.
Answer:
b. at least one plane has critical cracks.
PLS HELP SHOW ME HOW TO DO THIS
A polynomial function h(x) has a zero of x = 2 – 5i with a multiplicity of one. Certain values of h(x) are given in the following table.
x h(x)
–5 0
–2 3
–1 –1
1 2
4 0
7 6
10 5
If every real x-intercept of h(x) is shown in the table and each has a multiplicity of one, what is the degree of h(x)?
A. 2
B. 3
C. 4
D. 5
Using function concepts, it is found that the degree of the function is: 4, option C.
----------------------------------------
The x-intercepts of a function are the values of the function for which the output is zero.The degree of a function is the sum of the multiplicities of the x-intercepts of the function.If a function has a complex root, it means that the conjugate is also a root.----------------------------------------
When [tex]x = -5, h(x) = 0[/tex], thus, x = -5 is one x-intercept.When [tex]x = 4, h(x) = 0[/tex], thus, x = 4 is one x-intercept.There is also a x-intercept(zero) at [tex]x = 2 - 5i[/tex]. There will also be a x-intercept at the conjugate, which is [tex]x = 2 + 5i[/tex].Thus, there are 4 x-intercepts, all with multiplicity 1, which means that the degree of h(x) is 4, option C.A similar problem is given at https://brainly.com/question/10539060
PLEASE HELP!
Write an absolute value equation with the solution -1 and 5
Write an absolute value equation with no solution
the absolute value of -1 is 1 and the absolute value of 5 is 5 since its still positive. I could be wrong so double check with someone else
the absolute value of -1 is 1 and the absolute value of 5 is 5 since its still positive.
Jaishree studies for 5 hours daily. She devotes 2 hours of her time for science and mathematics. How muþch time does she devote for other subjects ?
Let Time devoted for others be x
[tex]\\ \rm\Rrightarrow x+2=5[/tex]
[tex]\\ \rm\Rrightarrow x=5-2[/tex]
[tex]\\ \rm\Rrightarrow x=3h[/tex]
Answer:
3 hours
Step-by-step explanation:
All we need to do here is subtract to find out how many hours she has left to devote to other subjects.
5 - 2 = 3
Best of Luck!
Last one for the night
Answer:
C. 2/3, 0.66, 66 2/3%
Step-by-step explanation:
There are 36 inches in a yard.
24/36 (simplify) = 2/3
Translate the sentence into an equation.
The sum of 5 times a number and 6 is equal to 7
Which of the following is equal to 4 and 1 over 2 divided by 2 and 2 over 3?
Answer:
4.91666666667
Step-by-step explanation:
this is what i got
either 9/2 x 8/3 or 9/2 x 3/8
what’s the solution for
-108pi=6pij
Answer:
j is -18
Step-by-step explanation:
[tex] - 108pi = 6pij \\ - 108 = 6j \\ j = - 18[/tex]
The solution is j = -18 for the expression -108π = 6πj
What are Arithmetic operations?Arithmetic operations can also be specified by subtracting, dividing, and multiplying built-in functions.
The operator that performs the arithmetic operations is called the arithmetic operator.
Operators who let do basic mathematical calculations.
- Subtraction operation: Subtracts the right-hand operand from the left-hand operand.
for example 4 -2 = 2
* Multiplication operation: Multiplies values on either side of the operator
For example 4*2 = 8
Given that the expression
⇒ -108π = 6πj
Divided by 6π both sides
⇒ -108π/6π = 6πj/6π
⇒ -18 = j
⇒ j = -18
Thus, the solution is j = -18 for the expression -108π = 6πj
Learn more about Arithmetic operations here:
brainly.com/question/25834626
#SPJ2
6 pounds of apples cost $12 how much do 8 pounds cost?
Answer:
8=$16
Step-by-step explanation:
6=$12
divide both sides by 6
1=$2
so one pound equals $2 so if 6 pounds equals $12 just add 2 pounds to 6 to make it 8 pounds. you added two pounds so that means you have to add $4 to the total witch will give you
8=$16
Aim: I can solve two-step word problems involving per
1. A supermarket stocks 300kg of potatoes. 25% of the potatoes are
are sold in 1.5kg bags. What mass of potatoes are sold in 1.5kg b
Answer:
75 kg
Step-by-step explanation:
300*25/100
3*25
75 Kg
Answer:
75kg
Step-by-step explanation:
potatoes are stocked =300kg
25% of potatoes in kg= 25% * 300kg
=75kg
75kg potatoes are sold in 1.5kg bags.
what is a perimeter of triangle
Answer:
a+b+c is the formula for calculating the perimeter of a triangle:)
Step-by-step explanation:
If f(x)=3x^2-2x+4 and g(x)=5x^2+6x-8,find (f-g) (x)
Answer:
-2x^2-8x+12
Step-by-step explanation:
f(x)=3x^2-2x+4
g(x)=5x^2+6x-8
(f-g) (x)= 3x^2-2x+4 - (5x^2+6x-8)
Distribute the minus sign
(f-g) (x)= 3x^2-2x+4 - 5x^2-6x+8
Combine like terms
=-2x^2-8x+12
Answer:
[tex] - 2( {x}^{2} - 4x + 6)[/tex]
Step-by-step explanation:
[tex] f(x)=3x^2-2x+4 \\ g(x)=5x^2+6x-8 \\ (f-g) (x) = 3 {x}^{2} - 2x + 4 - (5 {x}^{2} + 6x - 8) \\ = 3 {x}^{2} - 2x + 4 - 5 {x}^{2} - 6x + 8 \\ = - 2 {x}^{2} - 8x + 12 \\ = - 2( {x}^{2} - 4x + 6)[/tex]
178X718DIVIDED BY 20x12+478-289divided by 12
Answer:
77136.3166667
Step-by-step explanation:
Hope it helps
What is 7x-4(3x-2)=18
A line segment on a number line has its endpoints at -9 and 6. Find the coordinate of the midpoint of the segment.
A. 1.5
B. -1.5
C. 2
D. -3
Answer:
B -1.5
Step-by-step explanation:
please give brainliest if you can, have a good day<3 :)
Answer:
-1.5
Step-by-step explanation:
Find (fog)(x) when f (x) =
=-2 and 3(A)= = (I point)
2x
O Gog)(x) =
1+ 6x
1
O Gog)(x) =
2+3x
O Gog(x) =
x+3
4
1
Otog)(x)=
x+3
Finish
Cance
Answer:
A
Step-by-step explanation:
fog(x) = f(g(x) = f(1/2x) = 4x/(1+6x)
how many litters is in a gallon
Answer:3.785 liters
Step-by-step explanation:
Answer:
1 gal = 3.78541
Step-by-step explanation:
A quick search will do it.
Which symbol correctly compares the two fractions? Use >, <, or =. Select the correct choice from the drop down. 2/4 Choose... 3/8
Answer:
3/8
Step-by-step explanation:
Evaluate the expression
Step-by-step explanation:
this is correct answer thank you
PLSSS NEED HELP WILL GIVE CROWN
Add :
-1.25 + 2.5 = 1.25
For plotting the first one we first need to see the integer as here is 1 we will move to 1. Now, here it is given 0.25. Each line between 1 and 2 has 10 numbers gap so, as it 25 > 20 and 25 < 30. So, we should plot it between the 2nd and the 3rd line. As it is 5 it should be in between the line.
Refer the plotting for better identification
Add :
4.2 + (-0.4)
4.2 - 0.4
3.8
For plotting this one we will move to 3 than it has 8 < 10 so it should be plotted within the first dot.
Refer the attachment for better identification
find the midpoint of R(5,3) and S(-4,6)
Answer:
(1/2, 9/2)
Step-by-step explanation:
Using the midpoint formula
[tex]\left(\frac{-4+5}{2},\:\frac{6+3}{2}\right)[/tex]
=[tex]\left(\frac{1}{2},\:\frac{9}{2}\right)[/tex]
Answer:
Mid point is (0.5, 4.5)
Step-by-step explanation:
Formular:
[tex]{ \bf{mid - point = ( \frac{x_{1} + x _{2} }{2}, \: \frac{y_{1} + y_{2} }{2} ) }}[/tex]
x1 is 5
x2 is -4
y1 is 3
y2 is 6
[tex]{ \sf{mid - point = ( \frac{ 5 + ( - 4)}{2}, \: \frac{3 + 6}{2} ) }} \\ \\ = { \sf{( \frac{1}{2} , \: \frac{9}{2} )}} \\ \\ = ({ \sf{0.5, \: 4.5)}}[/tex]
Stella and brain each heat up a small pizza.stella cuts her pizza into 4 equal slices. Brain cuts his pizza into 8 equal parts,Stella eats two pieces of her pizza Brian eats four pieces of his pizza do they eat the same amount of pizza? PLEASE ANSWER!!!!
Answer:
They are the same amount of pizza.
Step-by-step explanation:
Stella cut her pizza into 4 pieces. If she eats 2 pieces, then she has eaten half of her pizza. Likewise, Brian cut his pizza into 8 pieces. If he eats 4 pieces, then he has eaten half of his pizza. Therefore, they have both eaten the same amount of pizza.
Model:
9 gal 2 qt to quarts
Answer:
38 us liquid quarts
Step-by-step explanation: