what’s the first steps on solving x2+11x+28=0
Answer:
combine like terms
Step-by-step explanation:
Put the following equation of a line into slope-intercept form, Simpliying an
fractions.
4x+4y =4
Answer:
y = -x + 1
Step-by-step explanation:
Slope intercept form is y = mx + b
4x + 4y = 4
x + y = 1
y = -x + 1
please help me i’ll give brainliest or whatever its called
Answer:
2.6Step-by-step explanation:
To solve this, we need to use the Pythagorean theorem to solve this.
The way to solve is by solving for AD by using triangle CAD and then using that result to solve for BD.
3.4² + b² = 6.5²
11.56 + b² = 42.25
42.25 - 11.56 = b²
b = √30.69
b = 5.53985559 or about 5.5
4.9² + b² = 5.5²
24.01 + b² = 30.69
30.69 - 24.01 = 6.68
b = √6.68
b = 2.58456959666 or about 2.6
EDIT: the other user is incorrect, here's why3.4 + 4.5 = 7.9
6.5² + 4.9² = 7.9²
66.26 doesn't equal 62.41
The length of Rectangle A is 5 inches more than its width. The perimeter of Rectangle B is 17. The difference between the perimeters of the rectangles is less than 9. What are the possible integer values for the width of Rectangle A?
Based on the perimeter value, the width of the rectangle is 1.75 inches
What are perimeters?The perimeter of a shape is the sum of the side lengths of the shape
For all regular quadrilaterals, you add up the side lengths to determine the perimeter
How to determine the width of the rectangle?The given parameters about the rectangle are
Perimeter = 17
Length = Width + 5
Rewrite the above equations as
l = w + 5
p = 17
The perimeter of a rectangle is
p = 2 x (l + w)
Substitute p = 17 in the above equation
So, we have
2 x (l + w) = 17
Substitute l = w+ 5 in the above equation
So, we have
2 x (w + 5 + w) = 17
Evaluate the like terms in the above equation
So, we have
2 x (2w + 5) = 17
Open the bracket in the above equation
So, we have
4w + 10 = 17
Evaluate the like terms in the above equation
So, we have
4w = 7
Divide both sides of the above equation by 4
So, we have
w = 1.75
Hence, the width of the rectangle is 1.75 inches
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Answer: hi, the answer is 1 in. 2 in., and 3 in.
Step-by-step explanation:
I took the quiz! :)
Plz help me with this question
Answer:
omg what the heck is this.
3 (2 + q) + 15 simplified
Answer:
3q+21
Step-by-step explanation:
Answer:
well i think you distribute the 3 to the two and the q so you multiply 3 * 2 = 6
3 * q = 3q then you add 6 + 3q = 9q
Step-by-step explanation:
Plz help I will mark as the brainlist
Answer:
1/25
Step-by-step explanation:
We can see that in this pattern, the denominator and the numerator of the next fraction cancel out; they're the same.
(1/2) x (2/3) x (3/4) = 1/4 (do you see it?)
The only things that do not cancel out are the numerator of the first fraction and the denominator of the last. So, in the end, the answer will be 1/25.
Hope this helps!
Transform the equation if necessary, and then solve it to find the value of x that makes the equation true.
11(x+10)=132
Answer:
11(x+10)=132 x = 2
Step-by-step explanation:
Step 1: Distribute the 11 to the "x" and the "10".
(Equation now becomes 11x + 110 =132)
Step 2: Subtract the "110" over to the "132"
(Equation now becomes 11x=22)
Step 3: Divide the "11" and the "22" --> 11x=22
11 11
Answer : x = 2
Simplify each fraction figure I will mark brainliest !!
Answer:
8/24 = 1/3
10/20 = 1/2
9/18 = 1/2
8/48 = 1/6
12/24 = 1/2
9/18 = 1/2
56/80 = 7/10
30/50 = 3/5
32/48 = 2/3
20/30 = 2/3
please help me i would really appreciate it
i will give brainliest
Answer:
b. multiply the bottom equation by 2
Step-by-step explanation:
it would eliminate y
Help me right now like now
Answer:
2. trust me.. i did it before.
Find the simplified product
Answer: (b + 3)/2
[tex]\frac{b-5}{2b}.\frac{b^{2}+3b }{b-5}=\frac{b^{2}+3b }{2b}=\frac{b(b+3)}{2b}=\frac{b+3}{2}[/tex]
Step-by-step explanation:
Answer:
(b + 3)/2
Step-by-step explanation:
1. The measure of the largest angle of a triangle is 12 degrees less than the sum of the measures of the other two. The smallest angle measures 58 degrees less than the largest. Find the measures of the angles.
help please:(
Answer:
13
Step-by-step explanation:
Answer:
to much typing
Step-by-step explanation:
Ann and Ruth bowled together and had a combined score of 410 points. Ann's score was 44 points less than Ruth's score. Write a system of equations that can be used to determine x, Ann's score and y, Ruth's score.
Answer:
x=y-44 and x+y=410
Step-by-step explanation:
So, you want to use the equations x=y-44 and x+y=410 when x is Ann's score and y is Ruth's score. This is because x (Ann's score) is Ruth's score (y) but 44 less, so you subtract y-44 to get x. Then x+y would also have to equal 410 so that's the other equation. Graphing the 2 equations gets you to the point (183,227) in which Ann's score is 183 points and Ruth's score is 227 points.
The Sweater Shack is offering a 20% discount on sweaters. If the regular price of a sweateris $15.00, what is the discount? /There are 30 students in Mrs. Jones class. Twenty percent of the students received an A on the last math test. How many students received an A? / Jean Junction is selling jeans at 15% off the regular price. The regular price is $25.00 per pair. What is the discount?/ if you can answer these Ill do another 100 points but please I really need help
Given that ,
The sweater shack is offering 20% discount,
and the regular price is $ 15 .00,
so, the discount given would be
⇢ $ 15 x 20/100
⇢$ 15 x 0.2
⇢$ 3
selling price⇢Regular price - Discount price
⇢$15 - $(20/100 x 15)
⇢$15 - $3
⇢$12
Answer 2↷Given that,
20% out of 30 students scored an A in previous math test,
so ,the number of students who got an A in the test
⇢ 30 x 20/100
⇢30 x 0.2
⇢6
Hence ,6 students secured an A grade in last math test
Answer 3↷Given that,
The Jean junction is selling the jeans at the discount rate of 15% of the regular price which is $25.00,
so, the discount is
⇢$25.00 x $ ( 15/100 )
⇢$25.00 x $ 0.15
⇢$3.75
selling price⇢ $25.00 - $25.00 x $ ( 15/100 )
⇢$25.00- $25.00 x $ 0.15
⇢$25.00 -$3.75
⇢$21.25
A cylinder has height 20cm.
The area of the circular cross section is 74cm.
Work out the volume of this cylinder
Answer:
volume= l*b*h
So, Volume=area*height
= 74*20
=1480cm³
Simplify the folllowing: (xy^3 z^4)
Answer:
Remove parentheses. xy³ z^4
4Step-by-step explanation:
Answer:
x^4y^12z^16 is the answer let me know if i'm right and pls brainllest me if i'm right
350cm³ to 1 litre as a ratio in its lowest terms
We need to know about ratio to solve the problem. The ratio of 350[tex]cm^{3}[/tex] to 1 litre as a ratio in its lowest terms is 7:20.
Ratio is the measure of how many times one number contains another in it. We can find the ratio of one quantity to another by dividing one by the other by cancelling out the common factors between the two. We have to find the ratio of 350[tex]cm^{3}[/tex] to 1 litre in its lowest terms. The lowest terms for both the quantities is [tex]cm^{3}[/tex]. We know that 1 litre =1000[tex]cm^{3}[/tex], we will convert the 1 litre to 1000[tex]cm^{3}[/tex] for calculating the ratio.
The ratio of 350 [tex]cm^{3}[/tex] to 1 litre =350/1000=35/100=7/20= 7:20
Therefore we found the ratio of 350 [tex]cm^{3}[/tex] to 1 litre in its lowest terms to be 7:20 by using the concept of ratio.
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What is the sign of -5 × (-1/-2)
What is the solution to the system
y=-3x+2
y = x - 3
using the table
x 110x):= V 20 Y
-3/4"x+2 0.5*x-3
1.25
-2
0.5
12
3
4
-0.25
-1
175
0:51
Answer:
I think it’s a
Step-by-step explanation:
On edge
A dozen water bottles cost $5.88. How much would it cost to purchase 36 bottles of water?
The volume of a cylinder is 401.92 cubic inches.
If the height of the cylinder is 2 inches, what is
its radius?
-6-(-4) as an addition problem
Answer:
-2
Step-by-step explanation:
-6-(-4) = -2
Answer: -2
Step-by-step explanation:
-6-(-4) = -6+4 = -2
I need help! and someone to tell me how to do it
step by step i have my exams tmr!
Answer:
Step-by-step explanation:
if you look at the graph 0-3 is positive
so that gives us 3+
3-2(you count 3 to -2 is negative since it goes left
so that gives us 3+(-5)
thks
The equation 2x+5y=0 represents a direct variation. What is the constant of variation
A. -2/5
B. 5/2
C 2/5
D. -5/2
Prove that the measure of angle JKL is 90 degrees.
∡ NKM + ∡KNM + ∡ NMK = 180° Because Angles in a triangle ΔNKM sum to 180°
∡ NKM + 90° + 60° = 180°
∡ NKM = 30°
∡ NKM = ∡JKN = ∡ MKL = 30° because ΔJKM∼ΔNKM∼ΔMKL
Finally:
∡ JKL = ∡ NKM + ∡JKN + ∡ MKL
∡ JKL = 30° + 30° + 30°
∡ JKL = 90°
With the help of properties of triangle ∠JKL = 90 degrees.
To prove:
∠JKL = 90 degrees.
Here,
Angle sum property of triangle:
In any triangle sum of angles is 180 degrees.
So,
In ΔNKM
∡ NKM + ∡KNM + ∡ NMK = 180°
∡ NKM + 90° + 60° = 180°
∡ NKM = 30°
Now,
ΔJKM∼ΔNKM∼ΔMKL (By AAA)
Thus,
∡ NKM = ∡JKN = ∡ MKL = 30°
Next,
∡ JKL = ∡ NKM + ∡JKN + ∡ MKL
∡ JKL = 30° + 30° + 30°
∡ JKL = 90°
Hence proved.
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The local water supply has a leak, it is losing 4 gallons of water every second.
After 15 seconds, the water level is at 1024 gallons. Write an equation to
represent the situation: *
Answer:
An equation to represent the situation would be:
[tex]y = 4x + 964[/tex]Step-by-step explanation:
Given that the water supply is losing 4 gallons of water every second.
It means the rate of change = 4 gallons per second
Given that after 15 seconds, the water level is at 1024 gallons.So the equation becomes
1024 = 4(15) + b
comparing with the slope-intercept form of the equation of a line
[tex]y = mx+b[/tex]
where m is the slope (rate of change) and b is the y-intercept
so
[tex]1024 = 4(15) + b[/tex]
[tex]1024 = 60 + b[/tex]
[tex]1024 - 60 = b[/tex]
[tex]b = 964[/tex]
So, the value of y-intercept i.e b=964
Thus, the equation will be
[tex]y = mx+b[/tex]
substituting the value rate of change i.e m = 4 and b=964
[tex]y = 4x + 964[/tex]
Therefore, an equation to represent the situation would be:
[tex]y = 4x + 964[/tex]What is the radius of a circle with an area that is three times its circumference?
Answer:
6 units
Step-by-step explanation:
please mark me brainliest
The graph of a line has slope 3/2 and passes through the point (-2, 4). Which point is on this line?
(0, 7)
(1, 6)
(2, 11)
(4, 1)
Answer:
(2, 11)
Step-by-step explanation:
Answer:
(1, 6)
Step-by-step explanation:
if I have a bottling machine that fills 15 bottles of water every 6 seconds, what is my unit rate and what would be my slope on a graph?
Answer:
Please check the explanation.
Step-by-step explanation:
We know that the unit rate is termed as the slope of the line.
We also know that the slope is normally represented by a fraction which may be expressed as a unit rate found at the point on the graph.
We are given that a bottling machine fills 15 bottles of water every 6 seconds.
We want a unit rate where 1 is in the denominator.Thus,
unit rate = 15 bottles / 6 seconds
= 2.5 bottles / 1 second
= 2.5 bottles per second
Thus,
The unit rate = 2.5 bottles per second
We know that the unit rate represents the slope of the line which is normally represented by a fraction or ratio.
Therefore,
Slope = 15 / 6
= 2.5