Answer:
k = -3
Step-by-step explanation:
-7(2 + k) = 7
Divide both sides by (-7)
2 + k = 7/-7
2 + k = -1
Subtract 2 form both sides
k = -1 - 2
k = -3
Answer:
k = -3
Step-by-step explanation:
[tex]-7(2+k)=7\\\\-14-7k=7\\\\-14+14-7k=7+14\\\\-7k=21\\\\\frac{-7k=21}{7}\\\\\boxed{k=-3}[/tex]
Hope this helps.
can somebody help me please
Answer:
D. X = 7
Step-by-step explanation:
See image for explanation
What type of number is -18
Answer:
a nagitive integer
Step-by-step explanation:
an integer is a whole number
The length of a rectangle is 4 cm longer than its width.
If the perimeter of the rectangle is 60 cm, find its length and width.
Hope it helped
Thank YouStudy the Function
F(x)=4x+9
Evaluate for f(7)
Answer:
37
Step-by-step explanation:
Step 1:
x = 7
Step 2:
4 ( 7 ) + 9
Step 3:
28 + 9
Answer:
37
Hope This Helps :)
Solve x − 2y = 3 for x.
Answer:
[tex]x=2y+3[/tex]
Step-by-step explanation:
So we have the equation:
[tex]x-2y=3[/tex]
And we want to solve for x. In other words, we want to isolate the x-variable.
So, add 2y to both sides of the equation.
[tex](x-2y)+2y=(3)+2y[/tex]
On the left, the 2y cancel. Simplify the right:
[tex]x=2y+3[/tex]
And we're done!
Answer:
x = 3 + 2y
Step-by-step explanation:
This is the answer because:
1) First, you have to isolate x, in order to isolate x you have to bring x to the end of the equation.
2) Then, you have to add 2y to both sides of the equation.
Another way you can think of this is:
1) If you add 3 + 2y you would figure out the answer because if you want to find x for a subtraction equation, you can add the answer to the equation with the number.
For example, x - 20 = 10, now to figure this equation out, you can either isolate the x, or you can add the answer in the equation with the remaining number in the equation.
Hope this helps!
First step in copying an angle?
Answer:
Make a point P that will be the vertex of the new angle.
From P, draw a ray PQ. ...
Place the compasses on point A, set to any convenient width.
Draw an arc across both sides of the angle, creating the points J and K as shown.
Step-by-step explanation:
These are the steps to copying an angle
I hope this helps you :)
Answer:
make a point p
hope this helps
What is the solution to this equation?
X/-2 = 18
O A. X=-36
OB. X=-9
O c. x = 36
O D. x = 9
find the value of (27/8)-2/3
The value of (27/8)-2/3 is..
Exact Form: 65/24
Decimal Form: 2.7083...…
Mixed Number Form: 2 17/24
Answer: 65/24 decimal form: 2.7
Step-by-step explanation: (27/8)-2/3
(3^3/2^3)-2/3
3(3^)+8(-2)/2^3.3
Tell whether (-3, 3) is a solution of the system.
Plot the image of point Q under a reflection across the -axis.
please help, I don’t know this question!
Answer:
pit it on -4 because your reflecting it on x
What is this I am so confused please help
Answer: A
Step-by-step explanation:
When you write exponential form to radical form, the fraction tells us that kind of root it is. Since it is a cubed root, as indicated by the 3 in front of the radical, we know that the fraction will be [tex]\frac{1}{3}[/tex]. If it were to be [tex]\frac{1}{3}[/tex], the entire radical would be to the power of 1. Since the radical is to the power of x, our answer would be [tex]125^{\frac{1}{3}x }[/tex].
Evaluate: the product of 4 and 7*
Answer:
28
Step-by-step explanation:
4 x 7 = 28
Hope this helps you :)
PLEASE HELP, BEST ANSWER GETS BRAINIEST Each letter of the word "RESPONSIBLE" is written on a separate slip of paper and placed in a hat. 1) What is the probability of choosing an E? 2) What is the probability of choose an "E" and then an "R" without replacing the letter? Write as a fraction
Answer:
1) 2/11
2) 2/121
Step-by-step explanation:
1. Because there are 2 E's, you have to chances out of your 11 changes, thus why the fraction 2/11 is the solution.
2. You know that 2/11 is the first fraction, so now find R. R has a 1/11 chance of getting chosen, so you multiply 2/11 and 1/11 to get 2/121.
Answer:
1) 2/11
2) 2/121
Step-by-step explanation:
Could somebody help me with number 1 through 4
If the area of triangle is 1200 sq m and its length is 60 m , find the breadth .
Answer:
20 m
Step-by-step explanation:
The area of a triangle is 120 sq m
The length is 60 m
We are required to find the breadth
Therefore to find the breadth of the traingle the formular below will be applied
Area= length × breadth
120= 60 × breadth
Breadth= 120/60
= 20 m
Hence the breadth of the traingle is 20 m
What is the area of a rectangle with a length of 418 feet and a width of 2 feet?
I needdd help sorry I don’t know what to type
Answer:
parallel lines has same slope
we have
y = -3/2x+2
comparing with y = mx+c
m=-3/2
so answer is -3/2
evaluate ( r - s ) 3 t r 2 r =-3 s=-4
Answer:
-9t
Step-by-step explanation:
(r-s) 3 × t × r
(-3- -4) 3 × t × -3
3 × t × -3
-9t
intergers: -6+3 plz help me and plz show how you figured it out i can’t
Answer:
-3
this diagram might help you ( ◜‿◝ )♡
Answer:
Question : -6 + 3 =?
Answer : -3
HELP!!!!!!! Correct answers only!!!! Will give brainliest!!!!!! One-third cup of black beans provides 20% of the potassium you need daily. You must get the remaining 1,360 milligrams from other sources. How many milligrams of potassium should you consume daily?
Answer:
1,700 MG
Step-by-step explanation:
1, 360 / 2 = 40% of the daily amount since 20% is taken from the beans.
1360 / 2 = 680
680 (40%) / 2 = 340, which is 20%.
Then, add 20% (340) to 1, 360, which gives the full percentage.
What is 727,356 rounded to the nearest ten thousand
Answer:
There is no decimal point, therefore, nothing to round.
What is the volume of a sphere with a radius of 8 m, rounded to the nearest tenth of a cubic meter?
Answer:
267.94
Step-by-step explanation:
V=4/3(pi)r^2
V=4/3(3.14)8^2
V=4/3(3.14)64
V=4/3(200.96)
V=267.94
Answer:
2144.7 m^3
Step-by-step explanation:
14=7(2x-4)
I have to solve this equation using two different methods and I don’t know how
Answer:
14=7(2x-4)
0r, 14/7 = 2x-4
or, 2= 2x-4
0r,2x= 6
or x=3
14=7(2x-4)
14=14x -28
14x=42
x=42/14=3
Method 1
Divide both sides by 7 first to get
14 = 7(2x-4)
14/7 = 7(2x-4)/7
2 = 2x-4
Then add 4 to both sides
2+4 = 2x-4+4
6 = 2x
2x = 6
Finally, divide both sides by 2
2x/2 = 6/2
x = 3
which is the final answer
------------------------------------------------------------------------------------------------
Method 2
Distribute the 7 through to each term in the parenthesis
14 = 7(2x-4)
14 = 7*2x + 7*(-4)
14 = 14x - 28
Then we follow similar steps as done earlier. Add 28 to both sides
14+28 = 14x-28+28
42 = 14x
14x = 42
Then divide both sides by 14 to fully isolate x
14x/14 = 42/14
x = 3
Either way we get the same result. As to which method you pick (if you could only choose one), its up to you based on whichever you find easier.
The basic idea with either method is that we follow PEMDAS in reverse to undo everything happening to x. This way we fully isolate it.
----------------
Checking the answer:
Plug x = 3 into the original equation. Simplify to get
14 = 7(2x-4)
14 = 7(2*3-4)
14 = 7(6-4)
14 = 7*2
14 = 14
This confirms the answer. As you can see, if we know the value of x, we use PEMDAS to simplify both sides. But if we don't know x, and want to find it, then we follow PEMDAS in reverse.
On her birthday, Jenny took a treat to school. She took 6 packs of 4 cupcakes and 3 packs of 8 candy bars. How many items did she take to school in all? Choose the answer that has the correct expression and the correct answer to the question.
Answer:
48 items
Step-by-step explanation:
6 packs of cupcakes with 4 in them, is 24 items. and 3 packs of candy with 8 pieces in them is also 24. 24+24=48. so (6×4)+(8×3)=48
Answer:
48
Step-by-step explanation:
6 x 4 = 24 Plus 3 x 8 = 24. If you add 24+24 its 48.A train moves at a constant speed of 35 m/s. How long it will take for the train to move 407 m? Select one: O a. 12 s O b. 16 5 O c. 335 O d. 8.15
Answer:
The closest answer is 12.
Step-by-step explanation:
Since 12 multiplied by 35 is 420, it is the closest answer. 16.5 seconds is too much. 335 seconds is WAY too much to reach 407 meters. 8.15 seconds is too little. It is at least half of how much you want it to move.
I didn't understand how C wasn't a correct answer to this problem alongside A, as the only correct answer is A/
Answer: It is A
Step-by-step explanation:
In the given figure D) DC/BC has the same ratio as AB/BC.
What is the interior angle bisector theorem?The interior angle bisector theorem states that in a triangle the angle bisector of an angle divides the opposite side to the angle in the ratio of the remaining two sides.
In ΔABC m∠A = 28° and the ratio is taken for the sides which is opposite to the given angle BC and the side which not base AB.
Given the ratio AB/BC.
∴ In ΔBCD in which m∠B is also 28° we have to take the same sides opposite side is DC and the side which is not the base BC.
So, in the triangles ABC and ABD The ratio which has the same value as AB/BC is BC/DC.
learn more about the exterior angle theorem of a triangle here :
https://brainly.com/question/18806624
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What is the equation number of songs, one, none, or plenty and the total cost
if you're driving 30 miles per hour how many hours does it take to drive 60 miles?
Answer:2 hours
Step-by-step explanation:
Use the function f(x) = 2x3 - 3x2 + 7 to complete the exercises
Answer:
f(−1) = ✔ 2
f(1) = ✔ 6
f(2) = ✔ 11
Step-by-step explanation:
Find the mean of 9, 1, 8, 3, 2, 1 graphically.
Answer: 4
Step-by-step explanation:
Mean means to add up the values and divide it by the number of values there is so 9 + 1 + 8 + 3 + 2 + 1 = 24, then 24 / 6 is 4.