Answer:
-1/2 or -0.5
Step-by-step explanation:
Evaluate each algebraic expression when a = 4 and b = -2
ab = ________
2( a - b) = _________
2a + 4b = __________
Answer:
ab=-8,. 2(a-b)=12. 2a+4b.
Find the slope of each of the lines below:
Answer: 3/10x
Step-by-step explanation:
(-4,-2) ( 6,1 )
The points are given by the graph and can be used to find the slope
using the slope formula
y2-y1 over
x2-x1
-2-1
-4-6 = 3/10
The result can't be simplified so
the slope is 3/10x
The coordinate of the midpoint of the line AB are (1,2)
The length of the line AB is 10 units.
if the gradient of AB is 0, Find the coordinates of A and B
ye, cant help here. sorry dude wish i could. i need points tho so
Find the product and simplify
(2x+3)(x+6)
I hope that the attachment helps you..
if your friend said that his toy can accelarate uniformly at 1.5m/s²,what is its initial speed if you record its finalspeed as7.5m/s after 5.0s running?
[tex]a = \frac{vf - vi}{t} [/tex]
[tex]1.5 = \frac{7.5 - vi}{5.0} [/tex]
[tex]1.5(5.0) = \frac{7.5 - vi}{5.0} (5.0)[/tex]
[tex]7.5 = 7.5 - vi[/tex]
[tex]7.5 - 7.5 = 7.5 - 7.5 - vi[/tex]
[tex]0 = vi[/tex]
The car's initial speed is 0 m/s
//
[tex]a = \frac{7.5 - 0}{5} [/tex]
[tex]a = 1.5 [/tex]
Find the measure of x (WILL GIVE BRAINLIEST)
Answer: it’s 66
Step-by-step explanation:
The whole triangle is 180, one side is 90 and the other is 24. So you subtract those numbers from 180
The 1st positive and the 1st negative coterminal angles to angle (- 446°)
Your answer:
A)-86° and -806°
B) 274° and -86°
C)274° and -806°
I feel the same way ^^
3.5 +(1+4 x (6.5 + 1.5)
Answer:
the answer is 38.5
hope this helps
The value of the expression is 43.5.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
3.5 + (1 + 4 x (6.5 + 1.5) )
= 3.5 + ( 5 x 8 )
= 3.5 + 40
= 43.5
Thus,
The value is 43.5
Learn more about expressions here:
https://brainly.com/question/3118662
#SPJ5
A hiker in Africa discover a skull that contains 63% of its original amount of C-14
what is a solution to x ≥ 20
Answer:
Step-by-step explanation:
Any number equal to or greater than 20 is a solution. 22 would be a solution.
find m
k(8x-29)
L(3x-1)
J(6x-11)
Answer:
k(8×-1)=8k-28
=-20k
L(6×-11)=6L-10
=-4L
J(3×-1)=3L
Answer:
k=75°
Step-by-step explanation:
there are 4 rolls of film in a package each roll has 27 exposures how many exposures are in the entire package. (for my brother)
Answer:
108 exposures in the entire package
Answer:
108 exposures
Step-by-step explanation:
4x27
4x20=80
4x7=28
80+28=108
The graph of the function f is shown. f(5) =
A)
-5
B)
-1
C)
0
D)
5
Answer:
The Answer Is C ) 0
Step-by-step explanation:
40 is what precent 50?⇒
Answer:
Answer is 80%
Step-by-step explanation:
40% is 80% of 50.
I hope it's helpful!
Answer:
80%
Step-by-step explanation:
40 /50 x 100% = 80%
Nick is making bread dough. The recipe requires 3/4 cup of flour and 1 1/8 teaspoon of salt. Nick wants to make the recipe using 1 cup of flour. To maintain the ratio, how much salt is required when 1 cup of flour is used?
(explain)
Answer:
x = 1 [tex]\frac{1}{2}[/tex]
Step-by-step explanation:
make equal equations first
[tex]\frac{3/4}{1 and 1/8}[/tex] = [tex]\frac{1}{x}[/tex]
cross multiply to get: 3/4x = 1 [tex]\frac{1}{8}[/tex]
divide by 3/4 on both sides: x = 1 [tex]\frac{1}{2}[/tex]
The sum of two numbers is 100. The different between them is 56. What is the larger number?
[tex]\pink{\bigstar}[/tex] The larger number is [tex]\large\leadsto\boxed{\tt\purple{78}}[/tex]
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
• Given:-Sum of two numbers is 100.Difference between the numbers is 56.⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
• To Find:-The larger number = ?⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
• Solution:-Let the two numbers be 'x' and 'y' respectively.
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
According to the question:-
✯ Sum of two numbers is 100.
➪ [tex]\sf x + y = 100 \dashrightarrow\bold\red{[equation \: 1]}[/tex]
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
Also,
✯ Difference between the numbers is 56.
➪ [tex]\sf x - y = 100 \dashrightarrow\bold\red{[equation \: 2]}[/tex]
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
• Adding equation [1] and equation [2]:-
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
➪ [tex]\sf (x + y) + (x - y) = 100 + 56[/tex]
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
➪ [tex]\sf x + y + x - y = 156[/tex]
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
➪ [tex]\sf 2x = 156[/tex]
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
➪ [tex]\sf x = \dfrac{156}{2}[/tex]
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
★ [tex]\large{\bold\red{x = 78}}[/tex]
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
• Substituting the value of x in equation [1]:-
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
➪ [tex]\sf x + y = 100[/tex]
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
➪ [tex]\sf 78 + y = 100[/tex]
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
➪ [tex]\sf y = 100 - 78[/tex]
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
★ [tex]\large{\bold\red{y = 22}}[/tex]
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
Therefore, the numbers are 78 and 22.
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
The larger number is 78.
Answer:
[tex]here \: given \: that \: sum = 100 \\ diffrence = 56 \\ take \: the \:large \: number = x \\another = y \\ thenx - y = 56 \\ y = x - 56 \\ here \: x + y = 100 \\ x + x - 56 = 100 \\ 2x - 56 = 100 \\ 2x = 156 \\ x = \frac{156}{2} \\ x = 78 \\ large \: number \: = 78 \\ thank \: you[/tex]
9/7•-2/5 pls help me
Answer:
31/35.
Step-by-step explanation:
9/7-2/5
= 45/35 - 14/35
= 31/35
A small radio transmitter broadcasts in a 50 mile radius. If you drive along a straight line from a city 65 miles north of the transmitter to a second city 58 miles east of the transmitter, during how much of the drive will you pick up a signal from the transmitter?
Answer:
29% of the drive
Step-by-step explanation:
The plot of the problem is:
Transmitter at origin (0,0)
City to the north at (0,70)
City to the east at (74,0)
The path from city to city is a line with slope:
m = (-70)/74 = -35/37
and y-intercept at y = 70, so the equation is y = (-35/37)*x + 70.
The transmitter reach the area enclosed by the next circle:
x^2 + y^2 = 53^2
See the picture attached
The intersection is gotten from the picture or solving:
x^2 + [(-35/37)*x + 70]^2 = 53^2
the points approximately are: (24.1, 47.2) and (45.8, 26.7)
From Pythagorean theorem the total distance of the trip is:
d1 = √(70^2 + 74^2) ≈ 101.9 miles
And the distance when the signal is picked up is:
d2 =√ [(45.8 - 24.1)^2 + (47.2 - 26.7)^2] ≈ 29.9 miles
You will pick up a signal from the transmitter in (d2/d1)*100 = 29% of the drive.
please solve using a2 + b2 = c2
show ur work please :)
Answer:
first take common
2(a+b)=c2
a+b=c
so,
if tha value of a+b is c
then
2(a+b)=c2
2×c=c2
c2=c2
proved
SOLUTION: a diver jumps from a diving board that is 24 feet above the water. the height of the diver is given by h= -16(t-1.5)(t+1) where the height h is measured in feet and the time t
Answer:
The diver will hit the water at 1.5 seconds
Step-by-step explanation:
Given
[tex]h= -16(t-1.5)(t+1)[/tex]
Required (Missing from the question)
When will the diver hit the water?
To do this, we simply solve for t
When the diver hits the water, the height is 0 (at that point)
So, substitute 0 for h in [tex]h= -16(t-1.5)(t+1)[/tex]
[tex]0= -16(t-1.5)(t+1)[/tex]
Divide both sides by -16
[tex]\frac{0}{-16} =\frac{-16(t-1.5)(t+1)}{-16}[/tex]
[tex]\frac{0}{-16} =(t-1.5)(t+1)[/tex]
[tex]0 =(t-1.5)(t+1)[/tex]
[tex](t-1.5)(t+1)=0[/tex]
Split
[tex]t - 1.5 = 0[/tex] or [tex]t + 1 = 0[/tex]
Solve for t
[tex]t = 1.5[/tex] or [tex]t = -1[/tex]
But time (t) can not be negative.
So:
[tex]t = 1.5[/tex]
Hence, the diver will hit the water at 1.5 seconds
2. To use the weight machines at a
health club, you must be at least
12 years old. Brandon writes the
inequality a > 12, where a represents
age in years, to represent this. Is
Brandon correct? Explain.
Answer:
no, he is not correct because if you must be at least 12, then the inequality should include 12
it should be written as:
a ≥ 12
Step-by-step explanation:
^
On Saturday, Carl runs a 3 kilometer trail 2 times. How many centimeters did Carl run?
A) 6,000 centimeters
B) 60,000 centimeters
C) 600,000 centimeters
D) 6,000,000 centimeters
Answer:
c) 600,000
Step-by-step explanation:
100,000 centimeters are in a kilometer, it says that Carl ran a 3 kilometer trail 2 times, that is 6 kilometers in total. So if you multiply 6 and 100,000 you will get 600,000
Hope this helps! :)
i need help with this question i don't know where to start.
t + 58 = 668
Answer:
t = 610
Step-by-step explanation:
668 - 58 = 610
610 + 58 = 668
Answer:
t=610
Step-by-step explanation:
you need to get the exponent by itself, to do this:
t+58=668 becomes t=610 by subtracting 58 from both sides to balance it out (what you do to one side you have to do to the other)
You and your family order dinner to be delivered by uber eats. The bill is $36.00. You volunteer to pay the driver a tip. You only have $5.40. What percentage did you pay as a tip?
Answer:
15%
Step-by-step explanation:
The coordinates of the endpoints of MP are
M(-3,-2) and P (2,3).
Which measurement is closest to the length of MP in
units?
Answer:
I'm pretty sure it is A
please help! 8th grade math. 50 points
Answer:
uhh... what is the question?
Step-by-step explanation:
someone who gets both correct first get BRAINLY!!PLZ HELP ONLY ANSWERS!!!
Answer:
1 = 11.3
2 = 16
Hope I helped
Which decimal is equivalent to 4 and 5/12?
Answer:
4.416
Step-by-step explanation:
That’s the answer I got
Answer:
the answer would be 4.41666666667
Step-by-step explanation:
hope this helps
Which equation is the rule for the pattern in the table?
Answer:
b
Step-by-step explanation:
Answer:
the answer is b
Step-by-step explanation:
PLS HELP similar polygons have the same____ but not necessarily the same size