Answer:
x² + 1 = 0
a = 1
b = 0
c = 1
[tex]x1.2 = \frac{ - b± \sqrt{ {b}^{2} - 4ac } }{2a} [/tex]
[tex]x1.2 = \frac{ - 0 ±\sqrt{ {0}^{2} - (4.1.1) } }{2.1} [/tex]
[tex]x1.2 = \frac{0± \sqrt{0 - 4} }{2} [/tex]
[tex]x1.2 = \frac{± \sqrt{ - 4} }{2} [/tex]
There is no real solution because the discriminant is negative
Note.
Formula diskriminan
√b² - 4ac.
if the diskrimanan is negatif, so the quadratic equatoin dont have solution
1. 3/4 + 1/3 =
2. 1/6 + 2/3 =
3. 3/8 + 1/4 =
4. 1/3 + 2/5 =
5. 1/8 + 3/4 =
6. 2/5 + 7/10 =
7. 1/6 + 1/3 + 3/4 =
8. 1/10 + 3/10 + 3/5 =
9. 3/8 + 5/5 + 1/2 =
Solve
10. Lisa swam 3/8 of a mile in the morning and 5/16 of a mile in the afternoon. How far did she swim?
Answer:
1. 3/4 + 1/3 = 1 1/12
2. 1/6 + 2/3 = 5/6
3. 3/8 + 1/4 = 1/4
4. 1/3 + 2/5 = 11/15
5. 1/8 + 3/4 = 7/8
6. 2/5 + 7/10 = 1 1/10
7. 1/6 + 1/3 + 3/4 = 1
8. 1/10 + 3/10 + 3/5 = 1
9. 3/8 + 5/5 + 1/2 = 7/8
10. 11/16
Step-by-step explanation:
What is the lateral area of a right prism which has a lateral edge of 4 inches and has a regular pentagon on base with an edge of 12 inches ?
Answer:
240 inches squared
Step-by-step explanation:
[tex]A=5*4*12=240[/tex]
5 for $4.45 or 8 for $7.28
Answer:
5 for $4.45
Step-by-step explanation:
Fine the slope of the line perpendicular to the line graphed below
Answer:
[tex]-\frac{1}{2}[/tex]
Step-by-step explanation:
The slope of this line is 2 because the rise from one point is 2, and the run is 1. The change in y-value is divided by the change in the x-value which is 2/1, hence, the slope of the line being 2.
The slope of the line perpendicular to the one shown below will be [tex]-\frac{1}{2}[/tex] because the slope that will result in a perpendicular line is the negative reciprocal of the original slope.
On a scale drawing of a boat, 15 feet are represented by 10 inches. If the drawing was 8 inches long, how long was the boat?
Answer:
12 feet
Step-by-step explanation:
On a scale drawing of a boat, 15 feet are represented by 10 inches.
This means [tex]15\,\,feet=10\,\,inches[/tex]
[tex]1\,\,inch=\frac{15}{10}\,\,feet=\frac{3}{2}\,\,feet[/tex]
Now, find the length of the boat if the drawing was 8 inches long.
Length of the boat = [tex]8(\frac{3}{2})=12\,\,feets[/tex]
So, length of the boat is 12 feets if the drawing was 8 inches long.
Prices of plants: $10, $8, $20, $25, $14, $98, $11, $9, $8, $6
Which measure of center best represent the data?
A.
mean
B.
median
C.
mode
D.
range
wouldnt it be nice to have a anwers
(A)
Answer:
A
Step-by-step explanation:
Mean gives you the average, so it would give you the average of the price . Sorry if this is wrong .
Louis wants to make a scale drawing of his bathroom. The room is 12 feet long by 8 feet wide. If he uses a scale of 1cm = 4ft, how big would the bedroom be in the scale drawing?
Pls helpp
Answer:
Step-by-step explanation:
a moving box in the shape of a right rectangular prism has a base area of 5 5/8 ft² and a height of 3 1/5 ft what is the volume of the moving box
Answer:
18 ft^3
Step-by-step explanation:
The volume of a right rectangular prism is the area of the base multiplied by the height.
V = Ah
V = (5 5/8 ft^2) * (3 1/5 ft)
First, we convert the mixed numerals into fractions.
V = 45/8 ft^2 * 16/5 ft
Now we multiply the fractions.
V = (45 * 16)/(8 * 5) ft^3
Factor 45 into 5 * 9. Factor 16 into 2 * 8.
V = (5 * 9 * 2 * 8)/(8 * 5) ft^3
We can divide the numerator and denominator by 5 and by 8 before doing the multiplications.
V = (9 * 2)/1 ft^3
V = 18 ft^3
Marks own a carpet store and sells hallway runners for k9.52/linear foot. a) How much is this per linear yard? b) How much is the per linear Meter? C) Ralph needs 3.9m of the runner for his hallway. How much will it cost? Full working out. Please calculate this for me
Answer:
28.56/linear yard
32.2256/linear meter
121.77984k
Step-by-step explanation:
a) Scale = k9.52*3 = 28.56/linear yard
b) Scale = k9.52*3.28 = 32.2256/linear meter
c) Cost = 3.9 * 32.2256 = 121.77984k
Solve for x in the following equation.
6x=72
X=?
help ASAP please !!
Dorise is cutting a piece of fabric to use as a section of a patchwork quilt. A pattern of the quilt section is shown below.
*Picture not drawn to scale
What is the area of section A?
A.
28.5 square inches
B.
49 square inches
C.
24.5 square inches
D.
14 square inches
Answer:
24.5
Step-by-step explanation:
plz help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
for 7 its r and u and r and s. and for 8 its all.
Step-by-step explanation:
Which function family should be used to solve the following question?
A team of scientists is studying the rate of growth of bacteria in a lab. It is found that the number of bacteria colis triplos overy
hour. If there are 6 bacteria at the beginning of the study, how many bacteria will be present after 7 hours?
A. Linear Function Family
OB. Quadratic Function Family
OC. Exponential Function Family
OD. Absolute Value Function Family
Answer:
I think d is the answer
PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA POINTS*..
IM GIVING 40 POINTS !! DONT SKIP :((.
solve for the missing angle measurement
The total sum of angles in a trapezium is 360°.
x + 80° + 75° + 105° = 360°
x + 260° = 360°
x = 360° - 260°
x = 100°
The missing angle measurement is 100°.
Hope it helps!
Coniya
The owner of Wayne's Auto Repair charges a
customer $285 for parts plus an hourly labor cost.
The customer paid for 2.5 h of labor and paid a total of
$490.
What is the hourly labor cost?
O $80.00 per hour
$82.00 per hour
0 $86.00 per hour
O $89.00 per hour
Answer:
$82 per hour
Step-by-step explanation:
Total cost to customer: $490
Cost for parts: $285
$490-$285 = $205
There is a total labor charge of $205.
The problem tells us that the customer paid for 2.5 hours of labor.
$205/2.5 hours = $82.00 per hour.
In the diagram below, the horizontal lines are parallel. Find the value of x
Answer:
128
Step-by-step explanation:
180 - 52
What is the exact circumference of the circle?
27 cm
47 cm
8 cm
167 cm
Answer:
27
Step-by-step explanation:
what is the multiplicative inverse of 19/3
Answer:
3/19
Step-by-step explanation: So basically you are asking for the reciprocal and the reciprocal of 19/3 is 3/19. You just basically flip the fraction around.
The Chicago Bears
finished their 2020-21
regular season winning
8 of their 16 games.
What is the ratio of
their wins to losses?
Answer:
I believe the answer is 8 to 8 (8/8) or 1
Step-by-step explanation:
16-8=8
Wins= 8
Loses= 8
Ratio= 8/8
8/8= 1
The answer depends how the question asks for it, so its either 8 to 8, or 1
4x 4/4 is equal to 1 , since 4/4 is equal to 1
Answer:
False, it is equal to 4.
Step-by-step explanation:
The current question asks that 4 x 4/4 is equal to 1, since 4/4 is equal to 1, but this stems from a gross misinterpretation of mathematics.
Although it is true that 4/4 is equal to one, since the 4 parts that make up an integer are completed, when multiplying the number 1 4 times this mathematical operation will result in 4, since 4 x 1 = 4.
13x-5 Ugh help please
[tex] \huge\bf\red{answer}[/tex]
The expression is not factorable with rational numbers.Please help me with steps
Answer:
224 cm³
Step-by-step explanation:
Decompose the figure into two cuboid.
Volume of the bigger cuboid = L*W*H
L = 7 cm
H = 7 cm
W = 4 cm
Volume of the bigger cuboid = 7*7*4 = 196 cm³
Volume of smaller cuboid = L*W*H
L = 7 cm
W = 2 cm
H = 2 cm
Volume of smaller cuboid = 7*2*2 = 28 cm³
✅Volume of the figure = 196 cm³ + 28 cm³ = 224 cm³
In ΔPQR, the measure of ∠R=90°, RQ = 55, PR = 48, and QP = 73. What ratio represents the sine of ∠Q?
Answer:
48/73
Step-by-step explanation:
1. Suppose that
O = {o, r, a, n, g, e}, A = {a, p, 1. e}, B = {b, a, n}.
Put one of the symbols E and €.
a) r... 0
b) p ... A
Answer:
a) r ∈ O
b) p ∈ A
Step-by-step explanation:
Given:
[tex]O=\{0,r,a,n,g,e\}\\A=\{a,p,1,e\}\\B=\{b,a,n\}[/tex]
To put: symbols ∈ or ∉ in the blanks.
Solution:
A set is a well - defined collection of objects.
In mathematics, an element of a set refers to the object that belong to that set.
a) r ∈ O
b) p ∈ A
PLEASE IS MY LAST QUESTION
WILL GIVE BRAINLIEST
Answer:
A. 6
Step-by-step explanation:
The equation should equal 20 so first subtract 2 from 20 which is 18 then divide 18 by 3 which is 6, 6 is your answer.
Opposite angles are equal
[tex]\\ \sf\longmapsto 3x+2=20[/tex]
[tex]\\ \sf\longmapsto 3x=20-2[/tex]
[tex]\\ \sf\longmapsto 3x=18[/tex]
[tex]\\ \sf\longmapsto x=\dfrac{18}{3}[/tex]
[tex]\\ \sf\longmapsto x=6[/tex?
Family A and Family B both have 8 people in their family. The ages of each member is listed below Which statement is correct about the variability of the two families. Family A: 35,5.42, 9.16, 3,8 12 Family B: 1, 5, 29.3, 7, 35, 6,9
Answer:
in family a you multiply by 7
In family b you multiply by 3
Step-by-step explanation:
Sorry if im wrong I should be right if im not then im really sorry :):(
Answer:
family A has greater variability
Step-by-step explanation:
Can someone help me? I know I'm doing something wrong but I'm not sure what.
This is an example: A $624 at 5% for 3 years
This is how I solved the problem:
(624)(.05)(3)
= 93.60
Answer:
Step-by-step explanation:
CI = 624 x 1.05 ^3 =722.358 for whole investment 722.36-624 =98.36 for interest only
or for interest only do 624 x .05^3 = 98.36
Standard interest is done like this
year 1 = 624 x 1.05 = 655.20
655.20-624 = 31.20
year 2 = 655.20 + 31.20 = 686.40
year 3 = 686.40 + 31.20 = 717.60
total interest = 717.60-624 = 93.60
So standard interest is the method you have done they may be asking for either compound interest which is the first one or asking for whole investment which means you need to also add 624 at end for Standard interest.
if you need CI interest do the top one.
If m∠D=104°, what is m∠D'?
Answer:
m<D' = 180⁰-104⁰
m<D' = 76⁰
The measure of the missing angle is
degrees.
Step-by-step explanation:
The exterior angles of a triangle is equal to the sum of two non - adjacent interior angles. Now , Set up an equation and solve for x.
[tex] \large{ \tt{x \degree = 63 \degree + 86 \degree}}[/tex]
[tex] \large{ \tt{x \degree = \boxed{ \tt{149 \degree}}}}[/tex]
Hope I helped ! ツ
Have a wonderful day / night ! ♡
# [tex] \underbrace{ \text{Carry \: On \: Learning}}[/tex] !! ✎
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