Answer:
D. x = −3, −4
Step-by-step explanation:
1) Move all terms to one side.
7x+ + 12=0
2) Factor 7x + [tex]x^{2}[/tex] + 12.
(x + 3)(x + 4) = 0
3) Solve for x.
x = −3, −4
What is the component form of the vector represented by 2a when a⃗ =〈−2,3〉?
2a = <__,___>
Answer:
[tex]\vec v = 2\cdot \vec a = \langle -4,6 \rangle[/tex]
Step-by-step explanation:
Let [tex]\vec a = \langle -2, 3 \rangle[/tex], we need to determine [tex]\vec v = 2\cdot \vec a[/tex], which can be found by applying the following property:
[tex]\alpha \cdot \langle x,y \rangle = \langle \alpha \cdot x, \alpha \cdot y\rangle[/tex], [tex]\forall \,\alpha,x,y\in \mathbb{R}[/tex] (1)
Then,
[tex]\vec v = 2\cdot \langle -2,3 \rangle[/tex]
[tex]\vec v = \langle -4,6 \rangle[/tex]
need help asap...
Can you find where the two lines intercept?
Answer:
Step-by-step explanation:y=4 x=3
mr. Campbell promise to donate $0.40 per Lay-up the basketball teams make at their home games. if he donated $112.80,how many lay-ups did the Wildcats make ?
choose the anwswe ,but show your work (PLEASE SHOW YOUR WORK :) THANK YOU)
ANWSERS
A.5
B.56
C.17
D.282
Answer:
D
Step-by-step explanation:
Formula
0.40 * Number of layups = 112.80
Solution
number of layups = 112.80 / 0.40
number of layups = 282
The answer is D
PLEASE ANSWER ASAP !!!!!
Answer: I am pretty sure it is 2/1
Step-by-step explanation: rise/run
6th grade math help me pleaseeee
On a scale drawing,1 in represents 8 feet. What is the actual length of a room that measures 3.4 inches
Answer:
27.2 ft
Step-by-step explanation:
Since 1 in on the drawing = 8 ft, we should find out how much ft is 3.4 in.
So, to get from 1 to 8, we multiply by 8.
And since we multiply by 8, we also have to do it to the other part as well.
So we would do:
8 x 3.4 = 27.2
Hope this helps! :)
can you help me please
what is 10,000 x 10,000
not important lol I just wanna know
Answer:
100000000
Step-by-step explanation:
Basic way to do this when using 10's 100's 1000's and up, count the number of zeros on the end and multiple the first regular number then add the zeros back :D
Answer:
100,000,000
Step-by-step explanation:
10,000 has 4 zeros. Double the number of zeros and you get 100,000,000, or one oh oh, oh oh oh, OH OH OOOH
Please help !! I will mark brainlist
Answer:
Sorry dude I don't know the answer.
6th grade math help me pleaseee
Answer:
-7.96
Step-by-step explanation:
I used a calculator
Mrs. Diaz has 4 brownies left. She wants to share the brownies equally among her 5 children.
Which of the following shows the amount of brownies each child can receive?
14 brownie
59 brownie
54 brownie
45 brownie
Answer:
4/5
Step-by-step explanation:
Multiply 4/1 and 5/1
Answer:
4/5
Step-by-step explanation:
Solve the problem using ELIMINATION
20x + 2y = 18 10x + y = 9
Answer:
Infinitely many solutions.
Step-by-step explanation:
Multiply the second equation by -2, then add the equations together
(20x+2y=18)
−2(10x+y=9)
20x+2y=18
−20x−2y=−18
Add these equations to eliminate x
0=0
Infinitely many solutions.
-5(x + 2) + 5(x - 5)
Answer:
-35
Step-by-step explanation:
X's cancel out each other
-10+-25
by selling a gas oven for 1035 a shopkeeper gain 15%find it's cost price
Answer:
Step-by-step explanation:
1035-15% of 1035= cost price
=1035-15/100x1035
=1035-155.25
=879.75
I'm having a lot of trouble solving systems of equations by matrix. Can someone explain the concept step by step? Also, my problem right now is {2x+2y=2, 4x-7y=16}
Answer:
the answer is [3x56] x 44
Step-by-step explanation:
How to solve this because my answer was 18/5=x and I’m not sure it right is my answer right?
A certain hydraulic system operates at 6,000 PSI. Complete the percentage change in the volume of oil in the system as the pressure is increased from zero to 6,000 PSI if the oil has a Bulk Modulus of 186,000 PSI.
Answer:
the percentage change in the volume of the oil is -3.22%
Step-by-step explanation:
The computation of the percentage change in the volume of the oil is given below:
= -(6,000 - 0) ÷ (186,000)
= -3.22%
This negative sign represents the decrease in the volume
Hence, the percentage change in the volume of the oil is -3.22%
How do I solve this? 18= -1 over 2k
Answer:
-1/36
Step-by-step explanation:
18=-1/(2k)
2k=-1/18
k=(-1/18)/2
k=(-1/18)(1/2)
k=-1/36
What is the Domain of the relation below:
{(0, 1), (-2,5), (3, 2), (-1, 5), (3,-2)}
Write your answer from smallest to largest with a comma.
D = {........
Answer:
(-2, -1, 0, 3,3)
Step-by-step explanation:
The domain simply refers to the possible x-values the function can take
so by listing out all the x-values of the individual points, we have all the domains
That will be ;
(-2, -1, 0, 3,3)
determine which representation corresponds to a decreasing speed with an increasing time
how to solve? 2x - 5 = 11
Answer:
Add
5
5
5
to both sides of the equation
2
−
5
=
1
1
2
−
5
+
5
=
1
1
+
5
2
Simplify
Add the numbers
Add the numbers
2
=
1
6
3
Divide both sides of the equation by the same term
2
=
1
6
2
2
=
1
6
2
4
Simplify
Cancel terms that are in both the numerator and denominator
Divide the numbers
=8
Solution
=8
Step-by-step explanation:
at school, th maximum number of students that can be in a classroom is 20. if there are 15 students signed up for the spanish class, how many more students can join the class?
Answer:
5
Step-by-step explanation:
15+5=20
The perimeter of a square field is 6400m. Find the cost of reaping the field at Rs.35 per 100 sq. m.
Answer:
side= 6400/4
=1600
therefore the area= 1600*1600
2560000
cost of reaping 100sq.m.=35
cost of reaping 1sq.m= 0.35
cost of reaping 2560000m sq= 2560000*0.35
= 906000
Prove whether the quadrilateral is a parallelogram using the Distance & Slope Formulas D(-5, -6), E(5, 2), F(4, -4), G(-6, -12)
Answer:
See the distances bellow
Step-by-step explanation:
Given data
D(-5, -6), E(5, 2)
substitute into the expression for the distance
[tex]d= \sqrt((x_2 - x_1)^2 + (y_2 - y_1)^2)\\\\d= \sqrt((5+5)^2 + (2+6)^2)\\\\d= \sqrt((10)^2 + (8)^2)\\\\d= \sqrt(100 +64)\\\\d= \sqrt((164)\\\\d= 12.80[/tex]
E(5, 2), F(4, -4)
[tex]d= \sqrt((x_2 - x_1)^2 + (y_2 - y_1)^2)\\\\d= \sqrt((4-5)^2 + (-4-2)^2)\\\\d= \sqrt((-1)^2 + (-6)^2)\\\\d= \sqrt(1+36)\\\\d= \sqrt((37)\\\\d= 6.08[/tex]
F(4, -4), G(-6, -12)
[tex]d= \sqrt((x_2 - x_1)^2 + (y_2 - y_1)^2)\\\\d= \sqrt((-6-4)^2 + (-12+4)^2)\\\\d= \sqrt((-10)^2 + (-8)^2)\\\\d= \sqrt(100+64)\\\\d= \sqrt((164)\\\\d= 12.80[/tex]
G(-6, -12), D(-5, -6)
[tex]d= \sqrt((x_2 - x_1)^2 + (y_2 - y_1)^2)\\\\d= \sqrt((-6+5)^2 + (-12+6)^2)\\\\d= \sqrt((-1)^2 + (-6)^2)\\\\d= \sqrt(1+36)\\\\d= \sqrt((37)\\\\d= 6.08[/tex]
1 459/500 as a decimal
Answer:
1.918
Step-by-step explanation:
1 then do 459/500 x 2 to make 918/1000 then add and convert
Carla has 35 meters of ribbon.how many 5 cm of ribbon can be cut from it?
Answer:
700
Step-by-step explanation:
35 m = 3500 cm
3500 cm ÷ 5 cm = 700
L.H.S of 2x - 3 = 8 is
Answer:
5.5
Step-by-step explanation:
2x -3 = 8
then
2x = 8 + 3 = 11
means
2x = 11
then
x = 11 ÷ 2
x = 5.5
___________________
we change the sign (- or +)
then take the number to the other side of the equal (with the changed sign)
leaving the x alone so that we can answer the equation..
_____________
to make sure
2×5.5 -3 = .....
it will be 8
What is the values of a and B
help ASAP PLEASE i need to get a 100
Answer:
Alternate Interior ∠s: 3 & 5, 4 & 6.
Corresponding ∠s: 1 & 5, 2 & 6, 3 & 8, 4 & 7.
Alternate Exterior ∠s: 1 & 8, 2 & 7.
Consecutive ∠s: 3 & 6, 4 & 5.
Step-by-step explanation:
Alternate interior angles must both be in between the parallel lines, it is almost like you are flipping the angle over the line, then moving it down, if that makes any sense.
Corresponding angles correspond, which means that they are the same (of course), but it is like you go directly down to the similar angle. You can visually see that angles are the same, an example is 1 & 5.
Alternate exterior angles are similar to alternate exterior angles, but they must be on the exterior of the parallel lines. Once again, it is like you are flipping the angle of the line, then turning it downwards, if it makes any sense that way to you.
Consecutive angles are always in between the two parallel lines on the same side. They add up to 180. So 4 & 5 is a good example.
Good luck.
White an equation in point slope form of the line that passes through the given point and with the given slope m
(-5,1), m=6
Answer:
y=6x+31
Step-by-step explanation:
Answer:
[tex]y-1=6(x+5)[/tex]
Step-by-step explanation:
The given point is (-5, 1) and the slope is 6.
Point-slope form is given by:
[tex]y-y_1=m(x-x_1)[/tex]
We will let (-5, 1) be (x₁, y₁) and we will substitute 6 for m. Therefore:
[tex]y-(1)=6(x-(-5))[/tex]
Simplify:
[tex]y-1=6(x+5)[/tex]