9514 1404 393
Answer:
D
Step-by-step explanation:
Choices A and D agree in all but one term: row 2 column 3 is (-2)(3) = -6. The term with the correct sign is only found in choice D.
Which are the solutions of x^2 = 19x + 1?
Answer:
x = [tex]\frac{19+\sqrt{365}}{2}, \frac{19-\sqrt{365}}{2}[/tex]
Step-by-step explanation:
1. Move everything to one side of the equation.
x^2 - 19x - 1 = 0
2. Use the quadratic formula where a = 1, b = -19, and c = -1.
x = (-b +- sqrt(b^2-4ac)) / 2a
If you plug those numbers into that formula, you will get the result listed above
Answer:
B
x₁ = [tex]\frac{19-\sqrt{365}}{2}[/tex], x₂ = [tex]\frac{19+\sqrt{365} }{2}[/tex]
Step-by-step explanation:
Jimmy is writing a paper for one of his classes. The paper has to be 2,000 words long, and so far he has written 432 words. If
he only has 4 more days to write his paper and wants to write the same number of words each day, then how many words
must he write per day to finish the paper?
Help w homework plsssss
Answer:
67
Step-by-step explanation:
complementary mean it equals 90 degrees
90-23 = 67
m<2=67
PLEASE HELP!!!!!!!!!!!!! ILL GIVE YOU BRAINLEST AND EXTRA POINTS!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
73 is the correct answer
Step-by-step explanation:
I would pick 3 and 6
or C and F
VERY EASY, WILL GIVE 50 POINTS FOR CORRECT ANSWER ASAP AND WILL GIVE BRAINLIEST.
C. Reflected over the y-axis and translated up 1 unit
Answer:
The answer is C
Step-by-step explanation:
13. Justify Conclusions Determine whether each statement is sometimes,
always, or never true. Justify your answer.
Answer
A. It is possible for a triangle to have two right angles?
B it is possible for a triangle to have two right angles.
Answer:
False. It is not possible for a triangle to have two right angles.
Step-by-step explanation:
Every triangle has 3 sides and, therefore, 3 angles (hence its name "tri" (three) "angle" (angles). Always, the sum of the three angles of a triangle will have a value of 180º. Therefore If two of the angles of a triangle were right, that is, they measured 90º, the third angle would be 0º, that is, it would be non-existent.Therefore, it is impossible for two angles of a triangle to be right angles.
select 2 points fir each of the following equations: y=2x+9 -6x=4+2y
the two points for each equation are:
For y = 2x + 9:
Point 1: (0, 9)
Point 2: (3, 15)
For -6x = 4 + 2y:
Point 1: (0, -2)
Point 2: (2, -8)
How to find the two points of the equationsTo find two points for each of the given equations, we can arbitrarily choose values for x and then calculate the corresponding y values.
For the equation y = 2x + 9:
Let's choose x = 0:
y = 2(0) + 9
y = 9
So, one point is (0, 9).
Let's choose x = 3:
y = 2(3) + 9
y = 6 + 9
y = 15
Another point is (3, 15).
For the equation -6x = 4 + 2y:
Let's choose x = 0:
-6(0) = 4 + 2y
0 = 4 + 2y
-4 = 2y
y = -2
One point is (0, -2).
Let's choose x = 2:
-6(2) = 4 + 2y
-12 = 4 + 2y
-16 = 2y
y = -8
Another point is (2, -8).
Therefore, the two points for each equation are:
For y = 2x + 9:
Point 1: (0, 9)
Point 2: (3, 15)
For -6x = 4 + 2y:
Point 1: (0, -2)
Point 2: (2, -8)
Leearn more about equation at https://brainly.com/question/14107099
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A y = 3x + 2
C y=-3x + 2
B y = 3x + 2
D y = - 3 x + 1/2
for a minute i thought it was c. y = -3x + 2.
What is 46% of 22? Use a fraction and express your answer in simplest form.
Answer:
10 3/25
Step-by-step explanation:
A garden table and a bench cost $996 combined. The garden table costs $46 more than the bench. What is the cost of the bench?
Answer:
The cost of the bench is $475
Step-by-step explanation:
Let cost of garden table= x and cost of bench= y
x + y = 996 (eqn 1)
x - y = 46 (eqn 2)
eqn 1 + eqn 2
2x = 1042
2x/2 = 1042/2
x = 521
The cost of the garden table is $521.
Substitute x = 521 into eqn 1
x + y = 996
521 + y = 996
y = 996 - 521
y = 475
The cost of the bench is $475.
A local car dealership currently has 36 used GM, Food, and Toyota vehicles on the lot that are cars or turcks. Inventory shows the following: 26 vehicles are cars, 10 are trucks, 11 vehicles are GM's, 15 vehicles are Fords. Three vehicles are Toyota trucks and 14 vehicles are Ford cars. What is the probability that a randomly selected vehicle is either a Ford or a car
Answer:
P (F or C) = 27/36= 0.75
Step-by-step explanation:
There are 36 vehicles in all.
There are total 26 cars.
There are total Ford vehicles which are 15 in number out of which 14 are cars. The results can be summarized as follows.
Cars Trucks Total Vehicles
Ford 14 1 15
Toyota 7 3 10
Gm 5 6 11
Total 26 10 36
As the events are composite
The probability of randomly selecting vehicle is either a Ford or a car is given by P (F or C) = P(F) + P(c)- P(FC)
where P(F) is the probability of the Ford car and P (C) is the probability of the car.
P(F)= 15/ 36
P(C)= 26/36
P(FC)= 14/36
This is the additive rule applied for composite events.
P (F or C) = P(F) + P(c)- P(FC)
= 15/36 + 26/36- 14/36
= 27/36=0.75
A door is 8 feet tall and 4 feet wide. What is the area?
Answer:
32
Step-by-step explanation:
a door is rectangular in shape
area = length × breadth
8 × 4
32
answer:
The area of the door is 32 square ft
help me please I will be thankful
Answer:
x=56º
Step-by-step explanation:
The cube tells us that 34º and x must equal 90º
So we use what we know to find the missing piece
90º=34º+x
-34º -34º
56º=x
Answer:56
Step-by-step explanation:90+34+x=180 because triangles angels sums up to 180 degrees
180-124=x
56=x
solve for the missing side and round to the nearest tenths place
Answer:
A. 22.5
Step-by-step explanation:
Apply Trigonometric function.
Reference angle = 64°
Opposite side to 64° = x
Hypotenuse = 25
Apply SOH:
Sin 64 = Opp/Hyp
Sin 64 = x/25
25 × Sin 64 = x
22.4698512 = x
x = 22.5 (nearest tenth)
1.5 units
2 units
3 units
3.5 units
Those are the answer options
I need help fast
Answer:
3 units
Step-by-step explanation:
There are 3 squares between them.
What percentage of the data is between 4 and 9?
A: 25
B: 50
C: 75
D: 100
Answer:
its 25% meaning A is the answer
Step-by-step explanation:
how to find the
value of 18.04 divided by 0.2
Answer:
18.04/0.2 = 90.2
Step-by-step explanation:
VERY EASY, WILL GIVE 50 POINTS FOR CORRECT ANSWER ASAP AND WILL GIVE BRAINLIEST.
Answer: (4,-11)
Step-by-step explanation: To perform a 180 degree rotation we switch the signs of the coordinates
Answer:
4,-11
Step-by-step explanation:
The answer is 4,-11 because if you think that you go over -4 and go up 11. Now switch the negative sign to the y coordinate because it is a 180 degree turn then you have your answer. 4,-11
pls mark as brainliest!!
I don't understand this, I really need help!!!!!! quickly
Answer:
2923.34
Step-by-step explanation:
π×r²×h
3.14 ×7 ²×19 2923.34
2923.34
Step-by-step explanation:
the formula for the volume of a cylinder is V = 3.14 × radius squared × h. So 3.14 × 49 × 19 which equals 2924.82
the rule for being the nth item in a certain sequence is n(n+1)/2. what is the 4th term in this sequence ?
a.) 4
b.)10
c.)16
d.)20
Answer:
a.) 4
Step-by-step explanation:
a.)4
How many ways can you arrange the letters in the word MARBLE if the letters B and L have to
stay together?
Answer:
I thought of 10
Step-by-step explanation:
Ambler, blamer, ramble, amble, blame, abler, blare, blear, blam, blae
write an equation for the function graphed below
The rational function graphed in this problem is defined as follows:
f(x) = -3(x - 2)/(x² - x - 6).
How to define the rational function?The vertical asymptotes of the rational function in this problem are given as follows:
x = -2 and x = 3.
Hence the denominator of the rational function is given as follows:
(x + 2)(x - 3) = x² - x - 6.
The zero of the rational function is given as follows:
x = 2.
Hence the numerator is given as follows:
a(x - 2).
In which a is the leading coefficient.
Hence:
f(x) = a(x - 2)/(x² - x - 6).
When x = 0, y = -1, hence the leading coefficient a is obtained as follows:
-1 = -2a/-6
-1 = a/3
a = -3.
Hence the function is:
f(x) = -3(x - 2)/(x² - x - 6).
More can be learned about rational functions at https://brainly.com/question/1851758
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PLEASE HELP !!!! ILL GIVE BRAINLIEST !!!
Answer:
1) the angles are supplementary because they sum up to 180 degrees
2) the two angles are same-side interior angles
3) 3x + 10 + 3x - 28 = 180
4) => 6x = 198 => x = 33
Answer:
33 messy
Step-by-step explanation:
Unit 2 Exam
Rabbit populations can double every 30
days. If there are 26 rabbits on a farm,
how many rabbits will be on the farm
after 240 days?
First, complete the equation:
Future Amount = 26(1+1)
Answer:
6,656 rabbits
Step-by-step explanation:
Population of rabbits = 26
Population doubles every 30 days
how many rabbits will be on the farm after 240 days?
t = 240 days / 30 days
= 8
Future Amount = 26(2)^t
=26(2)^8
= 26(256)
= 6,656
Therefore, the population of rabbits on the farm after 240 days is 6,656
a number line is divided into 8 equal parts to show eighths. A point is labeled 1/2. Name the equivalent fraction for the labeled point.
Answer:
4/8.
Step-by-step explanation:
4/8 is the correct answer for this question. This is why. If you take 8 and divide it in half, your answer will be 4. Also because fractions are division so the fraction 8/2 equals 4. This means the 1/2 mark is equal to 4.
If a 12-sided fair die is rolled twice, find the probability that both rolls have a result of 8.
Answer:
1 in 144
Step-by-step explanation:
There is one 8 on a 12-sided die, so the probability of rolling an 8 once is [tex]\frac{1}{12}[/tex].
We are rolling twice, so [tex](\frac{1}{12})^{2} =\frac{1}{144}[/tex].
Solve for the area of the triangle in each of the following problems.
Answer:
area of triangle = 1/2×base×height
area of triangle =1/2×15m×16m
area of triangle =120m²
Suppose you deposited $400 in a savings account 2 years ago. The simple interest rate is 2.8%. The
interest that you earned in those 2 years is $22.40.
Answer:
try to multiply the $400 to the interest and divided by $22.40
Estimate the radius of the object
Answer:
r = 1.41 mm
Step-by-step explanation:
Given that,
The circumference of the flower, C = 8.9 mm
We need to find its radius. We know that,
Circumference, [tex]C=2\pi r[/tex]
Where
r is the radius of the object
[tex]r=\dfrac{C}{2\pi}\\\\r=\dfrac{8.9}{2\pi}\\\\r=1.41\ mm[/tex]
So, the radius of the object is equal to 1.41 mm.
please help me fast thanks
Answer:
1.86/2 = 0.93/2 = 0.465/2 = 0.2325
Step-by-step explanation: