Answer: -7, 12
Step-by-step explanation:
a+b = 5
a*b = -84
a = 5-b
(5-b)*b = -84
-b^2 + 5b + 84 = 0
(-b - 7)(b + 12) = 0
The roots are -7 and 12.
I'm not sure what â€" stands for
fkhjglirugaeuzikjbvea HELP
Step-by-step explanation: Isolate the variable by dividing each side by factors that don't contain the variable.
Which graph represents a proportional relationship from y to x with a constant of proportionality of 1/2
Answer:
It´s going to be B
Step-by-step explanation:
There are a total of 84 campers attending a summer camp. The ratio of boys to girls is 4 to 3.
How many girls are attending the summer camp?
Enter your answer in the box.
Simplify the expression
√4x^2/3y
PLEASE SHOW WORK!!
Answer:
[tex] \frac{2 \sqrt{3y} \times |x| }{3y} [/tex]
Step-by-step explanation:
[tex] \sqrt{ \frac{ {4x}^{2} }{3y} } [/tex]
[tex] \frac{2 \times |x| }{ \sqrt{3y} } \\ \frac{2 \times |x|}{ \sqrt{3y} } \times \frac{ \sqrt{3y} }{ \sqrt{3y} } \\ \frac{2 \times |x| \times \sqrt{3y} }{ \sqrt{3y} \sqrt{3y} } [/tex]
[tex] \boxed{Answer:{\boxed{\green{= \frac{2 \sqrt{3y} \times |x| }{3y}}}}} [/tex]
Priya collected 2,400 grams of pennies in a fundraiser. Each penny has a mass of 2.5 grams. How much money did priya raise?
Answer:
$960
Step-by-step explanation:
2,400 divided by 2.5 = 960
y divided by x = 950 (x) 2,400 (y)
Juan graphed a line with a slope of −23 .
How does Juan count the slope from any point on the graph?
From any point on the graph, he counts down 2 then right 3 to end up on the line again.
From any point on the graph, he counts up 2 then right 3 to end up on the line again.
From any point on the graph, he counts down 2 then left 3 to end up on the line again.
Answer:
The answer is: From any point on the graph, he counts down 2 then right 3 to end up on the line again.
Step-by-step explanation:
To count the slope of the graph from any point on the graph; He counts down 2 then right 3 to end up on the line again.
The slope of a linear graph refers to the change behaviour of its dependent variable (usually y-axis) with respect to its Independent variable (usually x-axis).
In essence;
slope, m = (y2-y1)/(x2-x1)
Consequently, From any point on the graph, he counts down 2 then right 3 to end up on the line again.
Read more:
https://brainly.com/question/23935638
CAN ANYONE PLZ HELP ME WITH THIS WORKSHEET .. I’ll mark as brainliest
Answer:
Step-by-step explanation:
1)
We know that if [tex]x^2=9[/tex], then [tex]x=\pm \sqrt{9}[/tex], so [tex]\boxed{x=3,-3}[/tex]
2)
We know that if [tex]x^3=8[/tex], then [tex]x=\sqrt[3]{8}[/tex], so [tex]\boxed{x=2}[/tex]
3)
[tex]x^3=\frac{1}{8}[/tex] means that [tex]x=\sqrt[3]{\frac{1}{8}}=\frac{\sqrt[3]{1}}{\sqrt[3]{8}}=\frac{1}{2}[/tex].
So, [tex]\boxed{x=\frac{1}{2}}[/tex].
4)
[tex]x^3=27[/tex] means that [tex]x=\sqrt[3]{27}=\sqrt[3]{3^3}=3[/tex].
So, [tex]\boxed{x=3}[/tex].
5)
[tex]x^2=25[/tex] means that [tex]x=\pm \sqrt{25}=\pm \sqrt{5^2}=\pm 5[/tex].
So, [tex]x=5,-5[/tex].
6)
We know that the side length of the square will be [tex]\sqrt{\frac{9}{16}}=\frac{\sqrt{9}}{\sqrt{16}}=\boxed{\frac{3}{4}}[/tex].
7)
[tex]6x^2=54[/tex] means that [tex]x^2=9[/tex], which means that [tex]\boxed{x=3,-3}[/tex].
8)
[tex]2x^2+25=75[/tex] means that [tex]2x^2=50[/tex], which means that [tex]x^2=25[/tex], which means that [tex]\boxed{x=5,-5}[/tex]
What is the result when (-12) is subtracted from (- 8) ? *
Answer:
-20
Step-by-step explanation:
All that you have to do for this question is just form the equation:
-12-8=x
And solve, which is:
-20
what divided by 25 = 4.8?
Answer:
120/25 = 4.8
Step-by-step explanation:
To set up the equation you would do this-
[tex]\frac{4.8}{1} =\frac{x}{25} \\[/tex]
Then cross multiply (multiply 4.8 by 25 and x by 1)
[tex]4.8(25) = x(1)\\120 = x[/tex]
What is the midpoint of the line segment?
Drag the coordinates to the boxes to correctly match the endpoints and midpoint
Using the midpoint concept, it is found that:
The midpoint of the line segment of endpoints [tex](2, \sqrt{3})[/tex] and [tex](-6, 5\sqrt{3})[/tex] is [tex](-2, 3\sqrt{3})[/tex].The midpoint of the line segment of endpoints [tex]\left(-\frac{5}{3}, \frac{2}{5}\right)[/tex] and [tex]\left(\frac{1}{3}, \frac{3}{2}\right)[/tex] is: [tex]\left(-\frac{2}{3}, \frac{19}{20}\right)[/tex]The midpoint of a line segment is given by the mean of the coordinates of it's endpoints.
For the first segment, which endpoints [tex](2, \sqrt{3})[/tex] and [tex](-6, 5\sqrt{3})[/tex]:
[tex]x_M = \frac{2 - 6}{2} = -2[/tex]
[tex]y_M = \frac{\sqrt{3} + 5\sqrt{3}}{2} = 3\sqrt{2}[/tex]
The midpoint is [tex](-2, 3\sqrt{2})[/tex]
For the second segment, which endpoints [tex]\left(-\frac{5}{3}, \frac{2}{5}\right)[/tex] and [tex]\left(\frac{1}{3}, \frac{3}{2}\right)[/tex]:
[tex]x_M = \frac{-\frac{5}{3} + \frac{1}{3}}{2} = -\frac{4}{6} = -\frac{2}{3}[/tex]
[tex]y_M = \frac{\frac{2}{5} + \frac{3}{2}}{2} = \frac{\frac{4 + 15}{10}}{2} = \frac{19}{20}[/tex]
The midpoint is [tex]\left(-\frac{2}{3}, \frac{19}{20}\right)[/tex]
A similar problem is given at https://brainly.com/question/24352869
A rectangle has a perimeter of 36 cm. Its width is 4 cm less than its length. Find
the length and width of the rectangle.
Answer:
14
Step-by-step explanation:
Perimeter = 2 x length + 2 x width = 2L + 2w
Width is 4 cm less than the length, so w = L-4
36 = 2L + 2(L-4)
36 = 2L + 2L - 8
36 = 4L - 8
44 = 4L
L = 11
w = 7
2(11) + 2(7) = 22 + 14 = 36
Length is 11, width is 7
76.6, 25.5 and 10.87 estimated sum and actual sum?
estimated sum-114, actual sum-112.97
Step-by-step explanation:
76.6-77
25.5-26
10.87-11
77+26+11=114
76.6+25.5+10.87=112.97
Simplify (−8.5)(−5)( −2). (1 point)
Select one:
a.
850
b.
85
c.
−85
d.
−850
Answer:
C). -85 is correct answer
Step-by-step explanation:
This is a multiplication problem, so we can just multiply from left to right:
-8.5 x -5 = 42.5
42.5 x -2 = -85 (negative 85)
(Hope this helps can I pls have brainlist (crown)☺️)
what is the measure of F?
pleaseeee
Answer:
D
Step-by-step explanation:
The 3 angles in a triangle sum to 180°
Sum the 3 given angles and equate to 180
2x + 3 + 7x - 5 + 3x + 14 = 180 , collect like terms
12x + 12 = 180 ( subtract 12 from both sides )
12x = 168 ( divide both sides by 12 )
x = 14
Then
∠ F = 7x - 5 = 7(14) - 5 = 98 - 5 = 93° → D
Some save me please will name brainliest if the answer is correct
Answer:
-5, -9
Step-by-step explanation:
This point is located in the fourth quadrant. When rotated at 270 degrees, it'll end up in the third quadrant. The rules for this quadrant is that both the x and y value will be negative.
Answer: I think is -9(5,)
Step-by-step explanation:
Please help
Given m∠LMN=145 what is ∠XMN?
Answer:
(4x+5)°+(6x-10)°=145°
4x+6x+5-10=145°
10x-5=145°
10x=145+5
10x=150°
x=15
(6x-10)°=(6×15-10)°
=80°
The value of ∠XMN = 80.
What is angle?An angle is a figure in plane geometry that is created by two rays or lines that have a shared endpoint.
The value of total ∠LMN = 145.
∠LMN = ∠LMX +∠XMN
145 = (4x + 5) + (6x - 10)
145 = 4x + 5 + 6x - 10
145 = 10x -5
10x = 150
x = 15
Substitute the value of x in ∠XMN = (6x - 10)
∠XMN = 6×15 - 10
= 90 - 10
∠XMN = 80
Therefore, the value of the angle ∠XMN = 80.
To know more about the angle theorems, here
https://brainly.com/question/27962469
#SPJ2
Use the distributive property to rewrite each expression. then evulate. 27.) -3(2x-6)
Answer: -6x + 18
Step-by-step explanation: multiply each expression in the brackets by -3
so, -3 x 2x = -6x and -3 x -6 will give you +18 or just 18
for a final answer of -6x + 18
A piano has a length of 8 feet and a width of x+2 feet, write an expression in simplest form of the perimeter of the piano.
Answer: 2(x + 10)
Step-by-step explanation: you have to add all of the perimeter sides together so you will have to times the length by 2 so your equation would be (8 × 2 = 16). Then the width by 2 ( 2 × (x+2) = 2x + 4) now you add them together
16 + 2x + 4
2x + 20
Now you have to take out the highest common factor which is 2
So it will be 2(x + 10)
Which answer is an equation in point-slope form for the given point and slope?
Point: (5, 9); Slope: 2
y-5= 2 (2 +9)
y-9=2(x+5)
y+9= 2(2-5)
y-9=2(x – 5)
Answer: y-9=2(x-5)
Step-by-step explanation: The point (5,9) satisfies the equation:
y-9=2(x-5) for (5,9)?
9-9=2(5-5) ?
0 = 0 YES
Slope of 2? Rewrite:
y-9=2(x-5)
y = 2(x-5)+9
The slope is 2 YES
what's -2 5/11 - -7 1/11
Answer:
4.63636363636
Step-by-step explanation:
Answer:
1 -2 5 /11 - -7 1 / 11
2 5/11
= 2.27
7 1 / 11
6.45
= -4 . 18
thoả mãn x biết 2(x+5)=x^2+5x
Answer:
= 2
= − 5
Step-by-step explanation:
The Lucas numbers are defined by the recursive formula t1 = 2, t2 = 1, tn = tn - 1 + tn - 2, where n âN and n > 2. What are the first 9 Lucas numbers?
The first two are given to you, [tex]t_1=2[/tex] and [tex]t_2=1[/tex]. Use the recursive formula to get the 3rd term; then use the 2nd and 3rd terms to get the 4th; and so on.
Since the n-th Lucas number is the sum of the previous two Lucas numbers, you have
[tex]t_3 = t_2 + t_1 = 1 + 2 = 3[/tex]
[tex]t_4 = t_3 + t_2 = 1 + 3 = 4[/tex]
[tex]t_5 = t_4 + t_3 = 4 + 3 = 7[/tex]
[tex]t_6 = t_5 + t_4 = 7 + 4 = 11[/tex]
[tex]t_7 = t_6 + t_5 = 11 + 7 = 18[/tex]
[tex]t_8 = t_7 + t_6 = 18 + 11 = 29[/tex]
[tex]t_9 = t_8 + t_7 = 29 + 18 = 47[/tex]
Solve F=D+Drt for t.....
Answer:
[tex]t = \frac{-D+F}{Dr}[/tex]
Step-by-step explanation:
Step 1: Flip the equation.
[tex]Drt + D = F[/tex]Step 2: Subtract D from both sides.
[tex]Drt + D - D = F - D[/tex] [tex]Drt = -D + F[/tex]Step 3: Divide both sides by Dr.
[tex]\frac{Drt}{Dr} = \frac{-D+F}{Dr}[/tex] [tex]t = \frac{-D+F}{Dr}[/tex]mark is having a birthday party he included 15(and himself) He wants two cupcakes per person. Only 7 people came to the party. Write an equation for the problem and solve home many cupcakes each person will get.
Answer:
2 for each
Step-by-step explanation:
i think
At a farm the ratio of cows to horses was 9: 2 if there were 72 cows at the farm how many horses were there
Answer:
16 Horses!
Step-by-step explanation:
Since
9 : 2 = 72 : X
Then we know
2/9 = X/72
Multiplying both sides by 72 cancels on the right
72 × (2/9) = (X/72) × 72
72 × (2/9) = X
Then solving for X
X = 72 × (2/9)
X = 16
Therefore
9 : 2 = 72 : 16
what times 3 equals 0.5?
[tex](x)3=0.5[/tex]
Answer:
.16666667
Step-by-step explanation:
(x)3=0.5
divide both sides by 3
x =.16666667
please need help! it’s discrete math!!
Answer:
B
Step-by-step explanation:
It's easy.
Answer:
Free
is all I see
Step-by-step explanation:
An engineer earns $108 000 annually. Deductions
of $3 975 are made each month.
Calculate:
(a) his gross monthly salary
(b) his net monthly salary
Answer:
9,000
5,025
Step-by-step explanation:
Help me plz! I WILL MARK YOU BRAINLYST
Answer:
6.5 rounded from 6.53...
to see if this is correct we can:
13.5+9.5+6.5*3 = 42.5
but since we rounded it we can say its 6.5
Answer:
6.55 meters each day
Step-by-step explanation:
You know that in the end the fence must be 42.6 meters long.
On Monday & Tuesday, he installed 22.95 meters of fence. (We know this because 13.45 + 9.5 = 22.95).
So, how much is left? You find that by subtracting 22.95 from 42.6.
42.6-22.95 = 19.65 meters
There are 3 days left of fencing, and these days he will install equal lengths, so you can divide 19.65 meters by 3 days.
19.65 / 3 = 6.55 meters of fence per day
-2 1/2 ÷6=
-5 5/8 ÷ 5=
-2 1/8 ÷ 1/4=
1 5/8 ÷ -1 3/5=
-4 1/3 ÷ -2 3/5=
Answer:
-2 1/2 ÷ 6 = -0.41
-5 5/8 ÷ 5 = -1.12
-2 1/8 ÷ -1/4 = -8.5
1 5/8 ÷ -1 3/5 = -1.01
-4 1/3 ÷ -2 3/5 = 1.66
, Hope this helps :)
Have a great day!!