Answer:
The answer is 3/5! :D
Step-by-step explanation:
Add.
(79 + 1) + (59 + 2)
Which number is NOT in the solution set of the inequality x>-15?
A) 10)
B) -5
C) -10
D) -20
Answer:
d
Step-by-step explanation:
if x has to be greater than -15 and -20 = x than its not true because -20 isn't greater than -15
Answer:
yes its d because -15 is not greater than -20
What is the remainder if f(x) = x^4- 5x2 - 6x - 10 is divided by x - 3?
A. 8
B. 44
C. -46
D. 224
Answer:
A) 8
Step-by-step explanation:
The remainder when f(x) = x⁴ + 0x³ - 5x² - 6x - 10 is divided by x - 3 is 18.
What is factor theorem?Factor theorem states that if x - a is a factor of f(x) then f(a) = 0.If f(a) ≠ 0 then x - a is not a factor of f(x).
To determine the remainder of f(x) = x⁴ + 0x³ - 5x² - 6x - 10 when divided by x - 3 which is x - 3 = 0 or x = 3 we have to replace the value of x in f(x).
∴ f(x) = x⁴ + 0x³ - 5x² - 6x - 10.
f(3) = (3)⁴ + 0(3)³ - 5(3)² - 6(3) - 10.
f(3) = 81 + 0 - 45 - 18.
f(3) = 18.
So, the remainder is 18.
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Create a data set describing two variables, with at least five data points, that has an equation for the line of best fit of y = 2x + 25. Show all your work for full credit.
Answer:
X = 2, 4, 6, 7, 9
Y = 29, 33, 37, 39, 43
Step-by-step explanation:
Given a best fit line of :
y = 2x + 25
Take points X as :
X = 2, 4, 6, 7, 9
X = 2
y = 2(2) + 25 = 4 + 25 = 29
X = 4
y = 2(4) + 25 = 8 + 25 = 33
X = 6
y = 2(6) + 25 = 12 + 25 = 37
X = 7
y = 2(7) + 25 = 14 + 25 = 39
X = 9
y = 2(9) + 25 = 18 + 25 = 43
If a third plane could be drawn which contains both lines a and b, then lines a and b must be parallel. lines a and b cannot be parallel. lines a and b must be skew. lines a and b must be perpendicular.
Answer:
Yes a third plane can be drawn which contains parallel lines.
Step-by-step explanation:
There are two points:
1) a third plane can cab drawn which can have two line parallel as shown in the figure 1.
2) If plane A has a line and plane B has a line such that they are parallel to each other than the third plane cannot be drawn which contains both lines and b parallel.
A third plane can have only two lines parallel if they are not parallel in the in the other two planes.
We see that lines c and d parallel in the third plane are perpendicular in the planes A an d B.
Answer:
A lines a and b must be parallel.
Step-by-step explanation:
Find the length of the third side. If necessary, write in simplest radical form. (15 POINTS!!)
Answer:
4
Step-by-step explanation:
perpendicular (p) = 4
hypotenuse (h) = 2√5
base (b) = ?
We know by using Pythagoras theorem
b = √(h² - p²)
= √ (2√5)² - 4²
= √ 16
= 4
The coordinates of one endpoint of a line segment are (4, −12). The length of the segment is 5 units. Determine four coordinate pairs that could serve as the other endpoint of the given line segment. Enter all four coordinate pairs in the box using a comma to separate each pair. For example: (0, 0), (1, 1), (2, 2), (3, 3)
Answer:
Four coordinate pairs that could serve as the other endpoint of the given line segment are given by: (9,-12), (-1,-12), (4,-7), (4,-17).
Step-by-step explanation:
One endpoint of (4,-12), length of 5 units.
Four possible pairs:
Add 5 to x, keep y: (4+5,-12) = (9,-12).
Subtract 5 from x, keep y: (4-5,-12) = (-1,-12).
Keep x, add 5 to y: (4,-12+5) = (4,-7)
Keep x, subtract 5 from y: (4,-12-5) = (4,-17)
Four coordinate pairs that could serve as the other endpoint of the given line segment are given by: (9,-12), (-1,-12), (4,-7), (4,-17).
AM GIVIG BRAINLIEST look below find the area of each figre
you must write the formula under each shape/figure
Answer:
1 rectangle
Step-by-step explanation
Area= lxb
So 7.7 x 11 = 84.7
3 trapezoid
Area =(a+b/2)
Base a=13
Base b = 6
Height = 5
By 2
Answer= 47.5
4 Right angled triangle
Ab/2
Axb
Multiply each legs of the right angle triangle
So 3 1by4 x 4
By 2
Answer: See explanation
Step-by-step explanation:
1. That's a rectangle, the area of a rectangle is l (length) × w (width)
l = 11 cm
w = 7.7 cm
11 × 7.7 = 84.7
Area = 84.7 cm²
2. That is a triangle, the area of a triangle is 1/2 × b (base) × h (height)
b = 12 ft
h = 4ft
1/2 × 12 × 4 = 1/2 × 48 = 24
Area = 24 cm²
3. That is a trapezoid, the area of a trapezoid is [tex]\frac{a (base) + b(base)}{2} h(height)[/tex]
a = 6 cm
b = 13 cm
h = 5cm
((6 + 13) ÷ 2) x 5
(19 ÷ 2) x 5 = 9.5 × 5 = 47.5
Area = 47.5 cm²
4. Same formula: 1/2 × b × h
b = 3 1/4 in
h = 4 in
1/2 × 3 1/4 × 4 = 1/2 × 13/4 × 4
1/2 × 13 = 6.5
Area = 6.5 in²
Hope I helped!
A, B and D are points on the circumference of a circle, centre O.
BOD is a diameter of the circle.
BC and AC are tangents to the circle.
Angle OCB =34.
Work out the size of angle DOA.
Answer:
Step-by-step explanation:
A tangent makes a 90° angle to the circle.
∠BOC = 180°-90°-34° = 56°
△AOC is congruent to △BOC, so ∠AOC = 56°
∠DOA = 180°-56°-56° = 68°
The size of the angle DOA is 68°
What is the tangent of the circle?"It is the line which intersects the circle exactly at one point."
For given example,
BC and AC are tangents to the circle.
∠OCB = 34°
As, OC is the angle bisector for ∠ACB
⇒ ∠OCB = ∠OCA
⇒ ∠OCA = 34°
⇒ ∠ACB = ∠OCB + ∠OCA
⇒ ∠ACB = 34° + 34°
⇒ ∠ACB = 68°
We know, the tangent to a circle is perpendicular to the radius of the circle.
⇒ CB ⊥ OB
⇒ ∠OBC = 90°
and CA ⊥ OA
⇒ ∠OAC = 90°
We know, the sum of all angles of quadrilateral is 360°.
For quadrilateral ACBO,
⇒ ∠OAC + ∠ACB + ∠OBC + ∠BOA = 360°
⇒ 90° + 68° + 90° + ∠BOA = 360°
⇒ ∠BOA = 112°
We know, the angle subtended by semicircle is 180°.
⇒ ∠AOB + ∠DOA = 180°
⇒ 112° + ∠DOA = 180°
⇒ ∠DOA = 68°
Therefore, the size of the angle DOA is 68°
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I don’t now if u can see it very well but could anyone help me with this
Answer:
A and c
Step-by-step explanation:
If im correct A and C is the answer because A and C represent the vertical angles :)
35 of the apartments have a balcony and 55 of them don't. An apartment is randomly selected as part of a survey. What is the probability it has a balcony?
Answer:
39%
Step-by-step explanation:
It is given that 35 apartments have balconies in them.
While 55 apartments do not have balconies in them.
Total number of balconies is the sum of the apartments. i.e. 35 + 55
= 90 apartments
Therefore for the survey when an apartment is randomly selected, the percentage of the probability of the apartment to have a balcony can be found out by dividing 35 by 90 and then multiply by 100.
i.e.
[tex]$=\frac{35}{90}$[/tex]
= 0.38888888
Multiplying by 100, we get
= 0.388888 x 100
= 38.8888 %
= 39 %
3(x + 4) + 3x = -6 solve x
Answer:
x = -3
Step-by-step explanation:
3(x + 4) + 3x = -6
3x + 12 + 3x = -6
6x + 12 = -6
6x = -18
x = -3
Answer:
x=-3
Step-by-step explanation:
3x+12+3x=-6
6x+12=-6
-12 -12
6x=-18
6 6
x=-3
Question 1(Multiple Choice Worth 1 points)
(04.06 LC)
Which of the following points lie in the solution set to the following system of inequalities?
y > −3x + 3
y > x + 2
A.(2, −5)
B.(−2, 5)
C.(2, 5)
D.(−2, −5)
Answer:
C
Step-by-step explanation:
It’s convenient that there are only two x values you need to check, -2 and 2. Just insert it to see what y is appropriate.
x = -2: y > 6 + 3 = 9 (and y > -2 + 2 = 0 which is redundant here)
x = 2: y > 2 + 2 = 4 (and y > -6 + 3 = -3 which is redundant here)
So, neither B nor D is in the solution set with 5 < 9 and -5 < 9.
A isn’t in the solution set either with -5 < 4.
C is in the solution set with 5 > 4.
Answer:
c
Step-by-step explanation:
In a laboratory, they were testing a certain bacteria. They stated with 50 bacteria and they noticed it triples every 30 minutes. Write an equation to represent the situation. How many will exist after 2 hour?
Z varies jointly with x, and y, and z=7 when x= 2, y= 2
pleasee I need an answer now!!
Answer:
(7/4)(2)(2)=7
Step-by-step explanation:
Answer:
z = 1.75xy
Step-by-step explanation:
Given z varies jointly as x and y then the equation relating them is
z = kxy ← k is the constant of variation
To find k use the condition z = 7 when x = 2 and y = 2, then
7 = k × 2 × 2 = 4k ( divide both sides by 4 )
1.75 = k
z = 1.75xy ← equation of variation
find area of triangle
In the arithmetic sequence {13, 6,-1,-8,...}, what is the common difference?
Enter your answer as a number, like this: 42
════════ ∘◦❁◦∘ ════════
Answer = -7════════════════════
Knowna = 13
U2 = 6
U3 = -1
U4 = -8
════════════════════
Questiond = ..?
════════════════════
Way to do#since it gives a lot of number, i will just pick one of the nth term, ill choose U2
Un = a + (n-1)d
U2 = 13 + (2-1)d
6 = 13 + d
6 - 13 = d
d = -7
════════════════════
Note• The formula of arithmetic sequence
Un = a + (n-1)dn = nth term
a = first term
d = common difference
════════════════════
Solve by the substitution method
2x + 9y=41
- 4x + y=13
Answer:
x=-2, y=5. (-2, 5).
Step-by-step explanation:
2x+9y=41
-4x+y=13
---------------
2(2x+9y)=2(41)
-4x+y=13
-----------------------
4x+18y=82
-4x+y=13
------------------
19y=95
y=95/19
y=5
2x+9(5)=41
2x+45=41
2x=41-45
2x=-4
x=-4/2=-2
Find (fog)(x)
on each problem
1) F(x) =3x
G(x)=x-2
2) F(x) = - 2x
G(x) = x-5
3) F(x) = x+3
G(x) = 2x-5
Me ayudas por favor
:-/ es para Hoy
A, B, C, D are points on a line, with D the midpoint of segment BC. The
lengths of segment AB is 10; segment AC is 2; and segment BC is 12. What
is the length of segment AD?
Answer:
Also BC = 12
B......6......D......6......C
Now, AC = 2.
A can be either left of C or right of C
If A is left of C , AB = 12-2 = 10 (Correct)
If A is right of C AB = 12 +2 = 14 (Incorrect)
So the points placing is as below
B......6......D....4....A..2..C
Length of segment AD = 4
Ron made 3 pitchers of lemonade to sell at a lemonade stand. The cost of making the lemonade is 50 cents per pitcher of lemonade.
He sold each cup of lemonade for 15 cents, and he sold a total of 36 cups of lemonade.
How much money did Ron make selling lemonade after paying out the cost of making the lemonade?
$ ___
Answer:
$3.90
The cost of making them all is 1.50 subtracted from the profit he made
PLEASE HELP!!!
Simplify:
1) -sqrt(-9y^2) if y < 0
2) 3sqrt(c^2) if c is greater then or equal to 0
3) -5sqrt(4x^2) if x is greater than or equal to 0
4) -5sqrt(y^2) if y > 0
5) 0.5sqrt(16a^2) if a < 0
All the solutions of the expressions are,
1) 3yi
2) 3c
3) - 10x
4) - 5y
5) - 2a
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Now, We can solve as;
1) - √- 9y² , if y < 0
⇒ - √ - 9y²
⇒ - √- 1 × 3 × 3 × - y × - y
⇒ 3yi
2) 3√c², if c ≥ 0
⇒ 3 √c²
⇒ 3√c × c
⇒ 3c
3) - 5√4x², if x ≥ 0
⇒ - 5 √4x²
⇒ - 5 √(2x)²
⇒ - 5 × 2x
⇒ - 10x
4) - 5√y², if y > 0
⇒ - 5 √y²
⇒ - 5y
5) 0.5 √16a², if a < 0
⇒ 0.5 √(4a)²
⇒ 0.5 × -4a
⇒ - 2a
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answer this algebra question x/12 - 5 = 7
Answer:
x=144
Step-by-step explanation:
x/12-5=7
x-60=84
x=84+60
x=144
PLEASE HELP ME ASAP ?!?!?
Find the missing side lengths.
Leave your answers as radicals in simplest form.
Answer:
m = 5 n = [tex]\frac{5\sqrt{3} }{2}[/tex]
Step-by-step explanation:
5/2x2=5
5/3xsqrt3=5sqrt3/2
Help :( ik I asked a questions a few mins ago my brain just isn’t it today
I need help solving for X and Y
Answer:
y = 4 ; x = 4√2
Step-by-step explanation:
This is a 45° 45° 90° triangle meaning the legs will equal each other and the hypotenuse will be equal to the length of the legs times √2.
A cell phone is originally priced at $120.The online retailer gives a discount and the cell phone is now priced at $90.enter the percentage discount for the cost of the cell phone.
Answer:
25% off
Step-by-step explanation:
First, find 90/120, which is 0.75. Now, since the phone is not 75% off, you just find 100-75, which gives you 25%.
A line passes through the points (1, 4) and (0, 0). What is its equation in slope-intercept form?
Answer:
y=4x
Step-by-step explanation:
URGENT. The cover of a science textbook has a width of (x-2) and a length of (x^2 -5x+4) inches. Find the area of the cover of the science textbook.
A periodic wave with wavelength f= 30 Hz has speed v= 150 m/s. What is the wave's wavelength?
Answer:
The wave's wavelength λ = 5 m
Step-by-step explanation:
Explanation:-
Given that the frequency f = 30HZ
Given that the velocity
'v ' = 150m/s
The wave's wavelength
[tex]= \frac{velocity}{frequency} = \frac{150}{30} = 5[/tex]
The wave's wavelength λ = 5 m