What are all the zeros of the function f(x) = 4x2 + 8x + 3?
Please help!!
-0.2(x-20)=44-x Please i really need help. and please add an explanation if u want to.
Answer: x = 50
Step-by-step explanation:
-0.2(x - 20) = 44 - x
-0.2x + 4 = 44 - x (distribute the -0.2)
+ x + x
-----------------------------------------------------
0.8x + 4 = 44
- 4 - 4
-------------------------------------------------------
0.8x = 40 (divide by 0.8)
x = 50
1. Write a formula to represent the
nth term of the sequence: arithmetic
6, 11, 16, 21...
Find the 21st term of the sequence:
Answer:
5n + 1
5(21) + 1
105 + 1
106
21st term is 106
a) Find the area of triangles in which
(i) base = 8 cm, height = 5.5 cm
(ii) base = 12 cm, height = 8.4 cm
Answer:
Step-by-step explanation:
1) B=8cm H=5.5
A=1/2xbxh
A=I/2 x 8 x 5.5
A=22
The area of the first traingle is 22cm
2)
B=12cm h=8.4
A=1/2xbxh
A=1/2 x 12 x 8.4
A=50.4
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Someone help and please make sure it’s right
Answer:
x=10
Step-by-step explanation:
18x=180
x=10
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What is the solution to the system of equations shown in the graph
Answer:
(-5,2)
Step-by-step explanation:
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To find the solution to the system of equations, just find where the lines intersect. Since they intersect at (-5,2), the solution is (-5,2)
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What is the value of x in this diagram?
A
28
B
33
C
43
D
47
Answer:
The angle X = 33° Brainliest pls!
Step-by-step explanation:
180-104 = 76, 76- 10 = 66, 66/2=33
The table in the figure at the right is 34 in. across. The shaded regions are made of mahogany. What is the area of thee mahogany? Round your answer to the nearest tenth.
Answer:
408.7 in^2
Step-by-step explanation:
If you want to know how to find the area of a regular octagon by hand, the easiest procedure is to apply the standard formula for the area of a regular polygon. The formula is the following:
area of regular polygon = perimeter * apothem / 2,
where the apothem is the distance for the center of the polygon to the mid-point of a side. The perimeter can be calculated a few ways: by summing up the length of each side, multiplying the length of one side by the number of sides.
2z - 17
4z + 6
9z - 2
Total
Answer:
-103z - 2
Step-by-step explanation:
What is the surface area
Answer:
red) area = 59.2 km²
Step-by-step explanation:
area of bottom 4 x 4 = 16
area of 4 sides = 4 (1/2)(4)(5.4) = 43.2
16 + 432 = 59.2 km²
Answer:
Step-by-step explanation:
lateral area = 2(base)(slant height) = 2·4·2 = 16 km²
base area = base² = 4² = 16 km²
surface area = 16 + 16 = 32 km²
15. In a class if 75% of students own a bicycle, then percent of the students
do not have bicycles is???
Answer:
100%-75%= 25%
Step-by-step explanation:
100%= whole class
75%=students that own a bicycle
25%=students that do not have a bicycle
Please help me with this. (easy)
Answer:
8. 2/7 9. 3/4 10. 3/5
Step-by-step explanation:
simplify 4/14 by 2, simplify 15/20 by 5, and simplify 21/35 by 7, hope this helps
What is the diameter of a circle that has a radius of 5.2 yards?
** Do not put yards
Answer:
6.4
Step-by-step explanation:
If 8 students want to share 62 gallons of water for a water balloon fight,
how many gallons of water should each student get?
Answer:
Each student should get 7:75 gallons of water
Step-by-step explanation:
Do 62 divided by 8
Simplify the following.
c*5 x c
Answer:
c^6
Step-by-step explanation:
c^5*c^1=c^5+1=c^6
Please help I need to get this done and I have no idea what I'm doing!
Answer:
5
Step-by-step explanation:
(125) ^ (1/3)
We can rewrite 125 as 5^3
( 5^3) ^ 1/3
We know that a^b^c =a ^ (b*c)
5 ^(3*1/3)
5^ 1
5
Answer:
5
Step-by-step explanation:
when something is to the power of 1/2, that means you square root it
when it is to the power of a third, that means you cube root it.
for example, if it is 25 to the power of a half, that means [tex]\sqrt{25} = 5[/tex] because
5 x 5 = 25
this is the same concept
we need to find a number that multiplies itself 3 times and equals to 125
5x5x5 = 125, meaning that
125 to the power of a third, is 5.
3) The labor charge at Angie's repair shop is $60 an hour. Tony charges $ 25
for half an hour of work. Which shop charges less? Show how you know.
I
Answer:
Tony's shop charges less.
Step-by-step explanation:
Angie charges $60 an hour or $30 for a half hour.
Tony charges $25 for a half hour.
25 is less than 30
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Answer:
19%
Step-by-step explanation:
yes i will help
Answer: 19%
step by step:
1*90%*90% = 0.81 = 81%
1-81%=19%
In the diagram below of triangle DEF, G is a midpoint of DE and H is a midpoint
of EF. IfGH = 72 – 15, and DF = 38 – 3x, what is the measure of DF?
E
G
H
D
F
Answer:
GH= half of DF
so, 114= 38 - 3x
3x= 76
x= 76/ 3
What is the length in centimeters of the hypotenuse of the right triangle below?
2 cm
8 cm
Answer:
Step-by-step explanation:
WASSUP
what two numbers multiply to 56 and add to -15
Answer:
-7 and -8
Step-by-step explanation:
because 7 times 8 equals 56 and negative times a negitive equals a positive and -7 added to -8 equals -15
The pair of numbers which fulfill the given condition 2.6 & -1.76
and -17.6 & 2.6.
What is a quadratic equation ?An equation is quadratic in form if it can be written in the form of ax + bx + c = 0, where a, b, and c are constants and x is the variable.
Let x and y be the two numbers we're trying to find. We know that:
x * y = 56 (equation 1)
x + y = -15 (equation 2)
y = -15 - x (equation 3)
Substituting equation 3 into equation 1, we get:
x * (-15 - x) = 56
-x² - 15x + 56 = 0
x² + 15x - 56 = 0
Using the quadratic formula, we get:
x = (-b ± √(b² - 4ac)) / 2a
where a = 1, b = 15, and c = -56.
Substituting the values, we get:
x = (-15 ± 20.2) / 2
x = (-15 + 20.2) / 2 = 2.6
x = (-15 - 20.2) / 2 = -17.1
For x = 2.6:
y = -15 - x = -15 - 2.6 = -17.6
So, one possible pair of numbers is x = 2.6 and y = -17.6.
For x = -17.1:
y = -15 - x = -15 - (-17.1) = 2.1
So, another possible pair of numbers is x = -17.1 and y = 2.1.
Therefore, the two numbers that multiply to 56 and add to -15 are approximately -17.1 and 2.6, or vice versa.
To know more about quadratic equation check:
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Alex was thinking of a number. Alex doubles it the adds 20 to get answer of 22.7. What was his original number.
Answer:
2.7
Step-by-step explanation:
Let the number alex think be x
Answer = 22.7
According to the question,
x + 20 = 22.7
x = 22.7 - 20
x = 2.7
Therefore, his original number is 2.7
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Answer:
It is the right-angled triangle.
Step-by-step explanation:
According to the Pythagorean theorem, [tex]a^{2}+b^{2}=c^{2}[/tex], which c is the longest side of the triangle.
So, [tex]27^{2}+36^{2}=45^{2}[/tex] if the triangle is right angle.
[tex]LHS=27^{2} + 36^{2} = 2025[/tex]
[tex]RHS=45^{2}=[/tex][tex]RHS=45^{2} = 2025[/tex]
∵LHS=RHS
∴It is a right-angled triangle.
Answer:
The right angled triangle
What's the slope of the line (80,90)
Answer:
m = 90/80 = 9/8
Step-by-step explanation:
If you meant the line through the origin (0, 0) and (80, 90), then the change in x is 80 and that in y is 90. The slope is m = (change in y) / (change in x), or
m = 90/80 = 9/8
5. help me i’ll give you brainliest if u get this right
Answer: D.) 2
Step-by-step explanation:
In a rhombus, all sides are congruent; they have the same lengths (like a square). This means that if this parallelogram was a rhombus, 14 - x and 2x + 8 will have to be equal.
14 - x = 2x + 8
Subtract 2x from both sides
14 - 3x = 8
Subtract 14 from both sides
-3x = -6
Divide both sides by -3
x = 2
Audi surveys 50 students on how they get to school each morning. Results are: 40 ride the school bus, 8 ride in a car, and 2 walk to school. What is the probability of riding the bus?
A. 7/10
B. 1/25
C. 4/5
D. 4/25
Answer:
B: 40/50 or 4/5
Step-by-step explanation:
Out of 50 students, how many students ride the bus? 40. Since it is out of 50 students, the answer is: 40/50 but simplified to 4/5. HOPE THIS HELPS!!!
I need help ASAP!!!!
Answer:
Step-by-step explanation:
V=side ³=8=2³
side=2 in
Answer:
2 in
Step-by-step explanation:
X^3= 8
X = 2
Suppose you know that ∠S and ∠Y are complementary, and that m∠S = 5(m∠Y) −240°. Find m∠Y.
The value of m∠Y is
9514 1404 393
Answer:
∠Y = 55°
Step-by-step explanation:
Complementary angles have a sum of 90°.
∠S + ∠Y = 90°
(5∠Y -240°) +∠Y = 90°
6∠Y = 330° . . . . . . . . . . . . add 240°, collect terms
∠Y = 55° . . . . . . . . . divide by 6
In February Liliana spent 35 hours watching Netflix. In march she only spent 18 hours watching. What was the percent decrease in the amount of time she spent watching?
42
40
x
Find the unknown side length, x. Write your answer in simplest radical form.
A. 2.41
B. 429
C. 48
D. 58
Answer:
Your answer is D. 58
Step-by-step explanation:
x= [tex]\sqrt{(42^2+40^2)}[/tex]