Answer:
5r + 2
Step-by-step explanation:
9r-5r+2+r=5r+2
\mathrm{Group\:like\:terms}
=9r-5r+r+2
\mathrm{Add\:similar\:elements:}\:9r-5r+r=5r
=5r+2
If 3x-y=12, what is the value of
[tex] \frac{8 ^{x} }{2^{y} } [/tex]
A) 2^12
B) 4^4
C) 8^2
D) The value cannot be determined for the information
Answer:
2¹² (Option A)
Step-by-step explanation:
__________________________________________________________
FACTS TO KNOW BEFORE SOLVING :-
Any number having 0 as its exponent , the overall result will be 1. For e.g. :- [tex]a^0 = 1[/tex] (where 'a' is any number).Lets say there's a number 'a' having '- x' as its exponent , then - [tex]\frac{1}{a^{-x}} = a^x[/tex]__________________________________________________________
Lets put random values in place of x.
Let x be 0.
Putting x = 0 in the eqn. 3x - y = 12 gives the value of y.
[tex]=> 3 \times 0 - y = 12[/tex]
[tex]=> -y = 12[/tex]
[tex]=> y = -12[/tex]
So, we can conclude that by putting x = 0 , we get y = -12.
Now , putting x = 0 & y = -12 in [tex]\frac{8^x}{2^y}[/tex] gives -
[tex]=> \frac{8^0}{2^{-12}} = \frac{1}{2^{-12}} = 2^{12}[/tex]
It took Jonah three hours and 45 minutes to drive 240 miles. What was Jonah’s average speed in miles per hour?
Answer:
Step-by-step explanation:
Jonah drove 3 h and 45 min, or 225 minutes
He drove 240 miles
225 minutes...................................240 miles
60 minutes(1H)......................................? miles
(60*240)/225=64
he drove 64 miles per hour
which sequence of transformations creates the function g(x) = .....
Step-by-step explanation:
f(x)= square root of x
g(x)= - square root of -1/2x+3
Susan bikes 3 miles round-trip from home to school, Monday through Friday. On Saturday and Sunday she does not ride her bike, but skateboards around her neighborhood. How many miles total does she bike to and from school each week?
Answer:
15 miles
Step-by-step explanation:
5 days times 3 miles per day.
the saturdat/Sunday skateboarding stuff is irrelevant to the question asked
I need help? anyone know the answer?
Answer:
the answer you are looking for is B
Hi, I dont understand this. can anyone explain how to solve it ASAP?
What is the x-value of the solution to the system of equations?
5x + 4y = 8
2x − 3y = 17
a. −3
b. −2
c. 4
d. 5
Answer:
x=4, y=-3. (4, -3).
Step-by-step explanation:
5x+4y=8
2x-3y=17
--------------
2(5x+4y)=2(8)
-5(2x-3y)=-5(17)
---------------------
10x+8y=16
-10x+15y=-85
-----------------
23y=-69
y=-69/23
y=-3
5x+4(-3)=8
5x-12=8
5x=8+12
5x=20
x=20/5
x=4
Solve 2sinx^2-5sinx-3=0
Answer:
3
Step-by-step explanation:
The answer my Math 4 teacher gave me. :) work with it
find the value of given expression
[tex] \sqrt[3]{9 - 1} [/tex]
Answer:
2 ans ......
Step-by-step explanation:
Solution:
= ³√9-1
= ³√8
= 2 ans....
Answer:
[tex] \sqrt[3]{9 - 1} = \sqrt[3]{8 } = \sqrt[3]{ {2}^{3} } = + - 2[/tex]
Write the expressions in standard form. SHOW ALL STEPS! The sum of 9t – 13 and the opposite of 9t.
Answer:
-13
Step-by-step explanation:
Opposite of 9t = -9t
Taking the sum of 9t - 13 and -9t
Sum = 9t - 13 + (-9t)
Sum = 9t - 13 - 9t
Sum = 9t-9t - 13
Sum = -13
Hence the expression in standard form is -13
Solve for x :)))))))
Answer:
18
Step-by-step explanation:
X/24 = 36/48
X/24 = 3/4
X = 3/4 × 24 = 18
Write the rational number in decimal form, rounded to
the thousandths:
Answer:
1.833
Step-by-step explanation:
help help help help help help
Answer:
3
Step-by-step explanation:
I do not really know how to explain it but if you really need an explanation let me know.
Hope this helps :)
please help me with this
Answer:
3. 7
4. 9
5. 19
6. 15
7. 40
8. 32
9. 100
10. 18
11. 500
12. 125
Step-by-step explanation:
es equivalente?
2 10
- y -
3 15
Is 17/34 and 32/64 proportional why or why not?
Answer:
Yes
Step-by-step explanation:
Both equals to 1/2
That's the answer
A triangle is shown.
What is the measure of angle x?
You prepare8 scoops of dog food for 4 dogs, and prepare15 scoops of dog food for 6 dogs. Is there a proportional relationship between the number of scoops and the number of dogs?
Choose the correct answer below.
Answer:
Is there a proportional relationship between the number of scoops and the number of dogs?
No.
Step-by-step explanation:
A proportional relationship is something like:
y = k*x
Here y can represent the number of scoops of dog food, and x the number of dogs.
First, we know that for 4 dogs he prepares 8 scoops of dog food, then:
8 = k*4
If the relationship is proportional, then we should have a similar equation for the case of 6 dogs, where he prepares 15 scoops of dog food:
15 = k*6
So if we have the same k in both equations, then there is a proportional relationship between the number of scoops and the number of dogs.
In the first equation we have:
8 = k*4
8/4 = k
2 = k
And in the second equation we have:
15 = k*6
15/6 = k
2.5 = k
The values of k are different, so no, there isn't a proportional relationship between the number of scoops and the number of dogs.
2.
NEED HELP ASAP WILL GIVE BRAINLY
Answer:
47.04 square feet
Step-by-step explanation:
List the 5 ways we can show that two triangles are congruent.
Answer:
If two angles and the included side of one triangle are congruent to the corresponding parts of another triangle, then the triangles are congruent. If any two angles and the included side are the same in both triangles, then the triangles are congruent.
(side, side, side) we have two triangles with all three sides equal. ...
(side, angle, side) ...
(angle, side, angle) ...
(angle, angle, side) ...
(hypotenuse, leg)
Step-by-step explanation:
this is crazy lol
15. A hot dog stand sells of its hot dogs before noon, and of its hot dogs after noon. At the
end of the day they have 21 hot dogs left. How many hot dogs did they sell?
PLEASE HELP WILL MARK BRAINLEST!
Answer:
Step-by-step explanation:
The first thing to do is convert to a common denominator.
So 1/2 =4/8. That means the vendor sold 4/8+3/8=7/8 of its hot dogs. 280 = 7/8. Now if you divide 280 by 7, you get 1/8 (answer = 40). The vendor sold 7/8 and 1/8 was left, which = 40. 8/8 would be 280 + 40 = 320.
PLS help me
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Answer:
You would multiply (3 times 17) and then add 5. So the equation would look like this.
m=(3*17)+5 Step-by-step explanation:
Answer:
3x 17
do that first then add 5
Step-by-step explanation:
hope this helps
have a nice day/night
Pretty simple question, but how the hell am I supposed to know whether to put an addition sign or a subtraction sign.
Answer:
you must remember + and + equal to minus
OMG PLEASE HELP IF I DONT PASS THIS I FAIL MY CLASS! HELP! 30 POINTS SHOW WORK IF U NEED TO PLEASE! thank you too anyone(PRETTY PLEASE SHOW HOW YOU DID IT/can you show work)
Answer:
C seems right to me
Step-by-step explanation:
Help me pls thank you
Answer:
237 degrees
Step-by-step explanation
Find the unite rate 380 19
Answer:
i have no clue
thank you so much for the points have a good day and im super sorry
Step-by-step explanation:
Felix drove 68 mies in 1 hours
He had a 30-minute break and then drove a further 40 miles in 45 minutes.
Work out his average speed for the whole joumey
Give your answer in:
a) miles per hour
b) kilometres per hour
C)metres per second.
Answer:
Step-by-step explanation:
30 minutes every three fourths of an hour
help please!! i need this last one to finish!!!! 44 points!!
Answer:
The point is at about (4.5, 100).
Step-by-step explanation:
Minka's line is p = 22t, which has a y-intercept of 0.
Kenji's line is p = 50 + 11t, which has a y-intercept of 50.
Find the line with y-intercept at 0 and the line with y-intercept at 50. Follow the two lines until they intersect. The point of intersection is about (4.5, 100).
You can find this point by setting the two equations equal to each other:
22t = 50 + 11t
Subtract 11t from both sides.
11t = 50
t = 50/11 ≈ 4.545
Then you can find the p value for this point by plugging t = 4.545 into either equation.
p = 22(4.545) = 99.99
p = 50 + 11(4.545) = 99.995
On the graph the point is about (4.5, 100).
What do you think my favorite color is
( The closest one will get Brainieliest)
Answer:
teal?
Step-by-step explanation:
Answer:
Black , Blue or White
Step-by-step explanation:
Please help me with this!!
Answer:
transversal angle
Step-by-step explanation:
After substituting, what is the first operation performed by hen evaluating 5+(9x-3) divided by 2 for x=5?
Addition
Multiplication
Subtraction
Division