Answer:
[tex]a=\frac{-5}{2}[/tex]
Step-by-step explanation:
[tex]2a+9=4[/tex]
[tex]2a=4-9[/tex]
[tex]2a=-5[/tex]
[tex]a=\frac{-5}{2}[/tex]
Anyone know how to do this ( pls show work) pls help me
Answer:
Step-by-step explanation:
Temperature at 5 am = -7° F
Temperature at 9 am = 4° F
Temperature at 11 am =4 + 3.5 * 4 = 4 + 14 = 18° F
Total increase = 18 - (-4) = 18 + 4 = 22° F
SOMEONE HELP PLEASE IT'S DUE IN A FEW MINUTES
if f(x)=3x and g(x)=x+2 find (f-g) (x)
Factor this polynomial completely.
x2 - 81
Solve for X
6x + 4 = 5 - (x + 1)
Answer:
[tex]6x + 4 = 5 - (x + 1)[/tex]
open the bracket, [ distribution property ]
[tex]6x + 4 = 5 - x - 1 \\ 6x + 4 = 4 - x[/tex]
collect like terms:
[tex]6x + x = 4 - 4 \\ 7x = 0 \\{ \boxed{ \boxed{ x = 0}}}[/tex]
Where is the blue dot on the number line?
-4.5
-5
-5.5
Answer:
the answers is -4.9
Step-by-step explanation:
if you count from -4.5 to the blue dot it will be -4.9
What is the quotient of 8,595 ÷ 24?
its 3 hope this helpssss
Evaluate (2-5i)(p+q) when p=2 and q=5i
Answer:
(2-5i)(p+q)
p=2
q=5i
(2-5i)(2+5i)
a²-b²=(a+b)(a-b)
2²-(5i)²
4-(5i)²
i²=-1
4+25=29
answer 29
given xz with x(1,9) and z(5,-11) if y lies on xz such that the ratio of xy to xz 1:4, find the coordinates of y
If a segment XZ joining two endpoints X[tex](x_1,y_1)[/tex] and Z[tex](x_2,y_2)[/tex] is divided by a point Y(x, y) externally in the ratio of m : n,
Coordinates of the point will be,
x - coordinates → [tex]\frac{mx_2-nx_1}{m-n}[/tex]
y - coordinates → [tex]\frac{my_2-ny_1}{m-n}[/tex]
If the coordinates of the endpoints X and Z are (1, 9) and (5, -11) respectively and the ratio in which a point Y divides the segment is 1 : 5,
(Since, XY : XZ = 1 : 4 therefore, XY : YZ = 1 : 5)
Therefore, coordinates of Y will be,
x- coordinates → [tex]\frac{1(5)-5(1)}{1-4}=0[/tex]
y-coordinates → [tex]\frac{1(-11)-5(9)}{1-5}=\frac{-56}{-4}=14[/tex]
Therefore, coordinates of Y will be [tex](0,14)[/tex].
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What are the missing numbers on the two number lines?
Answer:
C is -14, 7, 14, 28
not sure what D is
Step-by-step explanation:
You get 23,254 as your answer enter your solution someone please help me
Answer:
Fdssawweerttyyyhjiokmnbvvffffdeewwsstttggytrf
Step-by-step explanation:
Yttfffrdeesdcxfftggvbred
what is a sclene triangle
Answer:
A scalene triangle is a triangle with three different angles
formula to calculate area of quadrilateral when Co ordinates are given please answer it anyone please...
[tex]\sf \orange {Please \: attach \: the \: picture \: of \:}[/tex]
[tex]\sf \green {the \: Quadrilateral \: please.} \: [/tex]
A rectangle has perimeter 66 cm and length 27 cm. What is its width?
(help pls it’s my hw)
Answer:
Step-by-step explanation:
A rectangle has the perimeter of 66cm, and since a rectangle has 2 lengths and 2 widths, we can tell that 2 widths = 66-27*2 = 12
so 1 width is half of 12 which is 6
Solve the equation for the indicated variable.
y(a-b)=c(y+a);y
Answer:
y = [tex]\frac{ac}{a-b-c}[/tex]
Step-by-step explanation:
Given
y(a - b) = c(y + a) ← distribute parenthesis on both sides
ay - by = cy + ac ( subtract cy from both sides )
ay - by - cy = ac ← factor out y from each term on the left side
y(a - b - c) = ac ← divide both sides by a - b - c
y = [tex]\frac{ac}{a-b-c}[/tex]
The value of y is ac/ (a-b-c)
What is an equation?An equation in math is an equality relationship between two expressions written on both sides of the equal to sign.
For example, 3y = 16 is an equation.
Given equation:
y(a-b)=c(y+a)
Now, using distributive property
ay-by = cy + ac
ay-by-cy = ac
y(a-b-c)=ac
y= ac/ (a-b-c)
Hence, the value of y is ac/ (a-b-c).
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-13 = [tex]\frac{r}{9}[/tex] +8
what is r?
Answer:
[tex] - 13= \frac{r}{9} + 8 \\ \frac{r}{9} = - 13 - 8 \\ \frac{r}{9} = - 21 \\ r = 9 \times - 21 \\ r = - 189[/tex]
I hope I helped you^_^
Click the picture and please help I need it fast because it’s timed
Answer:
y=3
Step-by-step explanation:
6=2(y+2)-4
6=2y+4-4
6-4+4=2y
6=2y
3=y
The answer you are looking for is y=3.
Solution/Explanation:
First, writing out the problem,
6=2(y+2)-4.
Next, using the Distributive Property for 2(y+2), which is 2y+4,
6=2y+4-4.
Now, canceling out the 4, since 4-4=0,
6=2y+0, or 6=2y.
Finally, dividing both sides by 2,
6/2=2y/2.
6/2=3.
2y/2=y.
3=y, or y=3.
So, therefore, the final answer is y=3.
I hope that this has helped answer your question. Good day to you.
Estimate the value of the following to the tenths decimal place.
Answer:
-12.2
Step-by-step explanation:
-12.247448....
-12.2
plss mark me brainliesttt
2(1/4),1(7/8),1.75,2.4 least to greatest
Answer: 1(7/8), 1.75, 2(1/4), 2.4
Simplify 4^2 ⋅ 4^8.
A)4^16
B)4^10
C)1^616
D)1^610
You will get 27pts if you answer this!!!
Answer:
4^2 * 4^8 = B)4^10
Step-by-step explanation:
When multiplying numbers with exponents, you will always add the exponents together. Therefore, 2+8=10 which is 4^10. You can also simplify the numbers and multiply them together. For example, 4^2=16 and 4^8=65,536 and when u multiply those numbers you get 1,048,576. The one that matches is 4^10=1,048,576.
plz help me 75 points for the 2 questions!!!
Answer:
#1The system of equations:
2x + 7y = -113x + 5y = -22Solve by elimination.
Triple the first equation, double the second one, subtract the second from the first and solve for y:
3(2x + 7y) - 2(3x + 5y) = 3(-11) - 2(-22)6x + 21y - 6x - 10y = -33 + 4411y = 11y = 1Find x:
2x + 7*1 = -112x = -11 - 72x = -18x = -9The solution is:
x = -9, y = 1#2Simplifying in steps:
8u - 29 > -3(3 - 4u)8u - 29 > - 9 + 12u12u - 8u < -29 + 94u < -20u < -5Product of (×-3)(2ײ-5×+1)
Answer:
The answer is 2x³+15x-6x²-2.
Step-by-step explanation:
(x-3)(2x²-5x+1)
2x³+1-6x²+15x-3
= 2x³-2+15x-6x²
solve the system of linear equations by eliminations x+5y=-2; 5x+y=14
1.
Input
Output
-5
0
1
2
(2,0)
% (-5,314)
1 27
3,87
2
3
8
a. Is the relation a function? Explain
Wayne plans to replace the ventilating fand in the oldest greenhouse and needs to know its volume. The greenhouse is shaped of a half of a cylinder, Its diameter is 40 feet, Its length is 120 feet, using 3.14 for pi, how many cubic feet does the greenhouse enclose?
Answer:
628.
Step-by-step explanation:
We need to calculate the radius of the cylinder :
40/2 = 20 feet
We then will calculate the volume of the whole cylinder:
[tex]V = \pi * r^{2} * h = 3.14 * 20^{2} * 120 = 1256[/tex] cubic feet.
However, Wayne greenhouse is just a half of a cylinder, so it's volume are:
[tex]1256 / 2 = 628[/tex] cubic feet.
I'm vietanh and have a good day!
hey please help where it has the < thing it says “ones” “tens” “nines”
Answer:
[tex]9 \times 9 = 10nines - 1nine \\ 9 \times 9 = 90 - 9 \\ 9 \times 9 = 81 \\ thank \: you [/tex]
Helpppppppppppppppppppp
Answer:
Step 1
Step-by-step explanation:
[tex]7 \times (8 - 3\times 2)[/tex]
Step 1:
[tex] = 7 \times (8 - 6)[/tex]
Step 2:
[tex]7 \times 2[/tex]
Step 3:
[tex]14[/tex]
HELP ASAP!!!
The line (y-1)=(2/3)(x+1) contains point (a,-3).
What is the value of a? Show
your work.
Answer:
-7
Step-by-step explanation:
The line (y-1)=(2/3)(x+1) contains point (a,-3)
=> (-3-1) = (⅔)(a+1)
-4 = (⅔)(a+1(
(a+1)= -4 ÷ ⅔
a + 1 = -4 × 3/2
a+ 1 = -6
a = -6-1
a = -7
The value of 'a' will be;
⇒ a = - 7.
What is substitution method?To find the value of any one of the variables from one equation in terms of the other variable is called the substitution method.
Given that;
The equation of line is,
⇒ (y - 1) = (2/3) (x + 1)
And, The point on the line = (a, - 3)
Now,
Since, The point on the line = (a, - 3)
Hence, It satisfy the equation of line.
Substitute x = a and y = - 3, we get;
⇒ (y - 1) = (2/3) (x + 1)
⇒ (- 3 - 1) = (2/3) (a + 1)
⇒ - 4 × 3 = 2a + 2
⇒ - 12 - 2 = 2a
⇒ 2a = - 14
⇒ a = - 7
Thus, The value of a = - 7
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Help Me with this Math question Please
9514 1404 393
Answer:
21 square units
Step-by-step explanation:
The formula for the area of a parallelogram is ...
A = bh
where h is the height measured perpendicular to the base.
Here, it is convenient to use the horizontal dimension as the height, and the vertical dimension as the base. The vertical bases are 3 units long and 7 units apart horizontally.
A = (3)(7) = 21 . . . . square units
A and B are partners sharing profit and loss in the ratio of 3:2. A new partner C is admitted and 1/4 share off profit is given.what is the new profit sharing ratio ?
Answer:
Correct option is: 9:6:5
Step-by-step explanation:
I'm not sure but hope it helps.
Cindy multiple her age by 5, subtracted 12, and then divide by 3. The result was 16. How old is Cindy?
Let's give Cindy's age a variable.
Cindy's age = x
Cindy multiplies her age by 5
x(5)
Subtracted by 12
x(5) - 12
Divide by 3
(5x - 12)/3
The result was 16
(5x - 12)/3 = 16
Let's solve
Multiply both sides by 3
(5x - 12) = 48
Open brackets
5x - 12 = 48
Add 12 to both sides
5x = 60
Divide by 5 on both sides to isolate x
x = 12
Cindy is 12 years old.