Answer:
-48
Step-by-step explanation:
We are given the expression:
[tex]-8y-4x[/tex]
and asked to evaluated when x= -6 and y=9. Therefore, we must substitute -6 in for x and 9 in for y.
[tex]-8(9)-4(-6)[/tex]
Solve according to PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition, Subtraction.
Multiply -8 and 9 ⇔ -8*9= -72
[tex]-72-4(-6)[/tex]
Multiply -4 and -6 ⇔ -4*-6=24
[tex]-72+24[/tex]
Add 24 to -72.
[tex]-48[/tex]
The expression -8y-4x when evaluated at x=-6 and y=9 is equal to -48.
Compare each set of rational numbers.
1
-1
0
-1.5
Answer:
–1
✔ <
Negative one-half
0
✔ >
–1.5
Step-by-step explanation:
r + 4 > 8; r =2 is a solution
Answer:r>4
Step-by-step explanation: You just subtract four from both sides
20 meters
Find the unit rate:
4 minutes
Answer: 6.3
Step-by-step explanation:
3- | 8x – 6 | = 3
help mee pleasee.
Answer:
x=3/4
Step-by-step explanation:
How do I solve 18=6(2x-8)
Answer:
x=11/2
Step-by-step explanation:
Answer:
5.5
Step-by-step explanation:
18=6(2x-8)
18=12x-48
+48 +48
66=12x
66/12
5.5
Write the equation in standard form for the hyperbola with vertices (-8,0) and (8,0), and foci (-10,0) and (10,0).
Answer:x56-8
Step-by-step explanation:
solve by substitution
2x-3y=-1
y=x-5
Answer:
Step-by-step explanation:
2x - 3(x - 5) = -2
2x - 3x + 15 = -2
-x + 15 = -2
x = 15
y = 15 - 5
y = 10
(15, 10)
how to factorise by grouping for 7a, d and h
Step-by-step explanation:
7a
x2 + 4x + ax + 4a
x2 + ax + 4x + 4a
x (x + a) + 4 (x + a)
:(x + 4)(x+a)
7d
x2+2x-ax-2a
x2-ax+2x-2a
x (x-a)+2 (x-a)
:(x+2)(x-a)
7h
x2-2bx-5x+10b
x2-5x-2bx+10b
x (x-5)-2b(x-5)
:(x-2b)(x-5)
Answer:
You have to take out the common terms :
Question A,
[tex] {x}^{2} + 4x + ax + 4a[/tex]
[tex] = x(x + 4) + a(x + 4)[/tex]
[tex] = (x + a)(x + 4)[/tex]
Question D,
[tex] {x}^{2} + 2x - ax - 2a[/tex]
[tex] = x(x + 2) - a(x + 2)[/tex]
[tex] = (x - a)(x + 2)[/tex]
Question H,
[tex] {x}^{2} - 2bx - 5x + 10b[/tex]
[tex] = x(x - 2b) - 5(x - 2b)[/tex]
[tex] = (x - 5)(x - 2b)[/tex]
9(a + 2b) + c for a = -3, b = -2, and c = 1.
Answer: -62
Step-by-step explanation:
9( a + 2b) + c
Substitute correct values for all a, b and c.
9( -3 + 2(-2) ) + 1
9( -3 - 4 ) + 1
9(-7) + 1
-63 + 1
-62.
Answer:
-62
Step-by-step explanation:
replace the variables
9( -3 + 2 * -2) +1
multiply
9(-3 + -4) +1
add
9(-7) +1
multiply
-63+1
add
-62
Six times a number is greater than 20 more than that number. What are the possible values of that number?
Answer: 6 x X > 20
so we know its greater than 3 because X>3 x 6 is 18, so I assume 4 which makes 24 if multipled by 6
Step-by-step explanation:
first.
If no grouping symbols or exponents are in an expression, then do
o multiplication and division
addition and subtraction
01
Answer:
Step-by-step explanation:
addition and subtraction i think i will turn my test in and edit
Needed ASAP! Solve for v³=36
Answer:
3.30192724889
Step-by-step explanation:
Answer:
[tex]v=\sqrt[3]{36}[/tex]
Step-by-step explanation:
[tex]v^3=36\\\\\sqrt[3]{v^3}=\sqrt[3]{36}\\\\v=3.30192724...\\\\OR\\\\v=\sqrt[3]{36}[/tex]
Hope this helps.
A point lies on AB and is 2/7 the distance from A to B. Point A is located at (1, 10) and point B is located at (20, 18).
What are the coordinates of this point?
Answer:
(6 3/7, 12 2/7)
Step-by-step explanation:
Just took the test. It was the correct one.
What must be true of the units in two rates if one rate can be converted to the units of the other rate? In other words, the units of the first rate are both/all distinct from that of the converted rate, but it still represents the same measurement.
Answer:
We have two rates, A and B.
If we want that the units of A can be converted into the units of B, then we must have that the units of A represent the same measure that the units of B.
What does this mean?
For example, if A is written in distance over time, then B must also must have units of distance over time.
An example would be:
units for distance = meter, kilometer, feet, etc.
units for time = hour, minute, second, etc-
Then we could have:
[A] = [km/h]
[B] = [m/min]
Then the units of A could be converted into the ones of B, because both of them have the same physical meaning.
Concluding, you only can convert units that represent the same physical quantity, for example, if you have one quantity in meters, for example:
10m
You only can convert this to other units of distance, remember to do the correct conversion, if we would want to write this in cm, you should remember that:
1m = 100cm
Then, 10 times one meter is 10 times 100 cm
10m = 10*(1m) = 10*(100cm) = 1000cm
It takes 3 3/4 yards of thread to make 1/2 of a sock. How many yards of thread will it take to make an entire sock?
Answer:
7 1/2 yards
Step-by-step explanation:
multiply by 2
(c+1) + 9 simplified
Answer:
[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{c + 10}}}}}[/tex]
Step-by-step explanation:
[tex] \sf{(c + 1) + 9}[/tex]
Remove the unnecessary parentheses
[tex] \dashrightarrow{ \sf{c + 1 + 9}}[/tex]
Add the numbers: 1 and 9
[tex] \dashrightarrow{ \sf{c + 10}}[/tex]
Hope I helped!
Best regards! :D
Answer:
The correct answer is c + 10
1 and 9 are the like terms.
Hopefully this helps!
-67=-8n+5 whats the answer? helppp im not smart
If it is 14 degrees outside and the
tempature will drop 22 degrees in the next ten hours how cold will it get
Answer:
-8 degrees
Step-by-step explanation:
If it is currently 14 degrees, and in the next 10 hours it will drop 22 degrees then you can write the equation as.
14-22=x
-8=x
in the next 10 hours it will be -8 degrees
Answer: -8 degrees
Step-by-step explanation:
Need help please! Math question!
NEED HELP ASAP PLZZZUnder a dilation, a square with side lengths 24 yards is transformed a square with side lengths 6 yards. What is the scale factor of the dilation?
Answer: 1/4
Step-by-step explanation: i just took the quiz
What is X+2=5 what does the variable mean/ represent what are the steps to solving this question. ( thanks if you do this)
Would You RATHER...Make $50,000 per year(everyone around you makes $25,000 per year)ORMake $100,000 per year24everyone around you makes $200,000 per year)?Whichever option you choose, justify yourreasoning with mathematics.
Answer:
I would rather make $50,000 per year(everyone around you makes $25,000 per year)
Step-by-step explanation:
I would because otherwise, everyone would be making $100 more than me I would rather make $25 more than them
plz please help urgent
Answer:
0.064
Step-by-step explanation:
solve the btackets first then the powers then start multiplying
Answer :
[tex] \frac{8}{125} = ( \frac{2}{5} )^{3} = 0.064 [/tex]
What s the difference between dividing 16 by 2 and finding the square roots of 16
What is 8 times 7 ? Pls help
Answer:
8x7=?
Step-by-step explanation:
8x7=56
Answer:
56
Step-by-step explanation:
8 times 7 equals 56
hope this helps you
pls make me brainlest ;)
What is this simplified?
6-2(3x+1)+4x-5
Answer:
-2x - 1
Step-by-step explanation:
6 - 6x - 2 + 4x - 5
6 - 2x - 2 - 5
-2x - 1
Juan drove 126 miles in 3 hours. If he continued at the same rate, how long would it
take to travel 336 miles?
Answer:
if he drove 9 hours it would 378 miles
The time Juan would take to travel 336 miles if he drove 126 miles in 3 hours is 8 hours.
What is multiplication?
One of the four fundamental mathematical operations, along with addition, subtraction, and division, is multiplication. Multiply in mathematics refers to the continual addition of sets of identical sizes.
Given:
Juan drove 126 miles in 3 hours,
Calculate the number of hours he takes to drive 1 mile,
1 mile = 3 / 126
336 miles = 3 / 126 × 336
Therefore, The time Juan would take to travel 336 miles if he drove 126 miles in 3 hours is 8 hours.
To know more about multiplication:
https://brainly.com/question/1135170
#SPJ6
okay legit, what is this.
Answer:
i honestly dont know
Step-by-step explanation:
please help me solve this problem
Answer:b im pretty sure origin because the origin is the very middle point in the graph.
Step-by-step explanation:
What does X equal cause I'm super confused.
[tex]\frac{5}{100} x = 250[/tex]
