what number completes the square x^2+18x+_____
(a).81
(b) .324
(c) .-9
(d).9
Answers
Step-by-step explanation:
a) 81 is the answer of your question
hope it is helpful to you
First you divide 18 by 2 which equals to 9
To complete the square multiply that number by itself
9^2=81
So the correct choice is A
Related Questions
Choose only the statements that can be taken from the diagram. Select all that apply
Answers
Answer:
Hello! Your answer would be BELOW
Step-by-step explanation:
A)
D)
C)
Hope I helped! Ask me anything if you have more questions! Brainiest plz! Have a nice mourning! Hope you make an 100%! -Amelia♥
The perimeter of a square is 28 cm.
a) Write an equation you can solve to find
the side length of the square.
b) Solve the equation.
Answers
28/4. all sides of a square are equal. there are four sides of a square…
What is the area?
3 in
2 in
4 in
Answers
Answer:
24
Step-by-step explanation:
because to find the area you multiply them all together, 3x2x4
2 3 4 5 6 7 8 pick a card . what is P(not odd)
Answers
Answer:
4/7
Step-by-step explanation:
....…..............
Determine if events A and B are mutually exclusive.
P(A) = 1/4 P(B) = 3/5 P(A or B) = 7/10
A) Not mutually exclusive
B) Mutually exclusive
Answers
Answer:
A) Not mutually exclusive
Step-by-step explanation:
Given
[tex]P(A) = \frac{1}{4}[/tex]
[tex]P(B) = \frac{3}{5}[/tex]
[tex]P(A\ or\ B) = \frac{7}{10}[/tex]
Required
Determine if they are mutually exclusive or not
Mutually exclusive are defined by:
[tex]P(A\ or\ B) = P(A) + P(B)[/tex]
So, we have:
[tex]P(A\ or\ B) = \frac{1}{4} + \frac{3}{5}[/tex]
Take LCM
[tex]P(A\ or\ B) = \frac{5+12}{20}[/tex]
[tex]P(A\ or\ B) = \frac{17}{20}[/tex]
By comparing:
[tex]P(A\ or\ B) = \frac{17}{20}[/tex] ---- Calculated
[tex]P(A\ or\ B) = \frac{7}{10}[/tex] ---- Given
We can conclude that A and B are not mutually exclusive because:
[tex]\frac{17}{20} \ne \frac{7}{10}[/tex]
Can anyone asnswer any of these questions?? I don't get this topic
Answers
Answer:
one
Step-by-step explanation:
one
Will mark brainliest
Answers
Answer: about 3 1/2
according to my calculations, if Im wrong then shoot me in the nuts
Step-by-step explanation:
Gina travels a distance of 7 miles to reach home. The bus ride covers 5 miles. She then walks 2 miles to reach her home. What fraction of miles does Gina travel by bus
Answers
Answer:
5/7 miles
Step-by-step explanation:
Gina travels a distance of 7 miles to reach home. The bus ride covers 5 Given data
Total distance traveled = 7 miles
Bus ride= 5 miles
Walk= 2 miles
Hence the fraction of miles traveled by bus is
=5/7 miles
Complete the table and then graph the following exponential function.
() = (3)x
Answers
A restaurant has a patio that is 8 feet wide and 12 feet long. The restaurant owners want to double the area of
the patio by increasing the width and the length by the same distance x. Write and solve an equation. What
are the new dimensions of the patio?
Answers
Answer:
12 and 16
Step-by-step explanation: 8+4=12 and 12+4=16 and 16x12=192 and 96x2=192 and 12x8=96
A helicopter is sighted at the same time by two ground observers who are 5 miles apart, both ahead of the helicopter and in its direction of travel. They report angles of elevation of 19.5° and 31.2° to the helicopter. Find the distance from the helicopter to the further observer, to the nearest tenth of a mile.
Answers
Answer:
The distance from the helicopter to the further observer is:
d = 12.77 miles
Step-by-step explanation:
The observer with 19.5° of elevation will be denoted by 1
The observer with 31.2° of elevation will be denoted by 2.
Here we have two right triangles. Both of them have the same opposite sides, so will be useful to use the tangent function.
For the second observer:
[tex]tan(31.2)=\frac{h}{x}[/tex] (1)
Where:
h is the opposite sidex is the adjacent side (distance from the observer 2 to the point where the angle of elevation is 90° )For the first observer:
[tex]tan(19.5)=\frac{h}{5+x}[/tex] (2)
Where:
h is the opposite side5+x is the adjacent side (distance from the observer 1 to the 90° elevation point, 5 miles is the distance between observes )Let's find x from equations (1) and (2). Both of them have the variable "h" so we can equal these equations.
[tex]xtan(31.2)=(5+x)tan(19.5)[/tex]
[tex]x(tan(31.2)-tan(19.5))=5tan(19.5)[/tex]
[tex]x=\frac{5tan(19.5)}{tan(31.2)-tan(19.5)}[/tex]
[tex]x=7.04\: miles[/tex]
Now, if we use the right triangle with 19.5° of elevation, the hypotenuse will be the distance from the helicopter and the further observer (let's call d).
Let's use the cosine function to find d.
[tex]cos(19.5^{\cric})=\frac{5+x}{d}[/tex]
[tex]d=\frac{5+7.04}{cos(19.5^{\cric})}[/tex]
[tex]d=12.77\: miles[/tex]
I hope it helps you!
area addition and subtraction
Answers
Answer:
is that a question? what is this supposed to mean?
Which image shows 1/2÷4? A or B
Answers
Answer:
Step-by-step explanation:
Notice that 1/2 divided by 4 is 1/8. Graph A represents this.
Answer:
I think it should be A
Step-by-step explanation:
because of the four boxes before half but I stand to be corrected
Please help me!! How do I do this?
Answers
Answer:
I think 12 * 12/ 60 = ?
12*12= 144
144/ 60= ?
Answer:
360°
Step-by-step explanation:
I think
1/2 base ×height
1/2×60×12
30×12
=360
ANSWER ASAP CORRECT ANSWER GETS BRAIN THINGY!!!
Given the spinner below, the
probability of landing on an
A is . Predict how many times you would land on an A if you spun the spinner 24 times
A. 8
B. 9
C. 10
D. 12
Answers
Answer:
B. 9
Step-by-step explanation:
The probability of landing on A is 3/8. Now, multiply the fraction by the number of times it will be spun.
3/8 × 24 = 9
Hope this helps!
Answer:
9 times
Step-by-step explanation:
Probability for landing on A is 3/8. So, for every 8 times you spin, you predict that you will land on A 3 times (3 times out of 8 spins).
So you either
A.) multiply the probability by the total spins:
(3/8) * (24) = 9 times you land on A
or
B.) divide the 24 spins by 8, to get 3 different repeats of the probability.
So 3 * 3 = 9 times.
Y=x2= is that a function?
Answers
X = y2 would be a sideways parabola and therefore not a function. ... If a vertical line passes thru two points on the graph of a relation, it is NOT a function.
A bag contains pennies, nickels, dimes, and quarters. There are 50 coins in all. Of the coins, 16 % are pennies and 30 % are dimes. There are 2 more nickels than pennies. How much money does the bag contain?
Answers
Ak190 has the best answers
Answers
Answer:
bhi
Step-by-step explanation:
hf
Answer:
ok
Step-by-step explanation:
Armando took his dog, Tasha, to the vet. Tasha was placed on the scale and weighed 45.72 pounds. The veterinarian told Armando that Tasha’s breed should weigh no more than Thirty-six and one-half pounds. Armando calculated about how much weight Tasha should lose to be under the breed’s maximum weight. 45.72 rounds to 45 rounds to 37 45 – 37 = 8 pounds Which statements are true about Armando’s calculations? Check all that apply. Armando should have added 37 to 45. Armando should have rounded 45.72 to 45.5. Armando should not have rounded Thirty-six and one-half to 37. Armando should have calculated that the difference between 45 and 37 is 7. Armando’s last step should have shown 45.5 Minus thirty-six and one-half = 9.
Answers
Answer: 17 pounds
Step-by-step explanation:
The right triangle on the right is a scaled copy of the right triangle on the left.
Identify the scale factor. Express your answer as a whole number or fraction
in simplest form.
15/4
5
Pleaseeee help
Answers
Answer:
1.25
Step-by-step explanation:
15 ÷ 4 = 3.75
3.75 ÷ 3 = 1.25
5 ÷ 4 = 1.25
The triangle is scaled by 1.25
Given f(x) = 5x - 7 and g(x) = x² - 3, find f(f(2)).
Answers
Step-by-step explanation:
Given f(x) = 5x - 7 and g(x) = x² - 3, find f(f(2))
What is the maximum or minimum value? for f(x)=(x+4)(x-2)
Answers
Answer:
4
Step-by-step explanation:
PLEASE HELP!!!
△AOC~△BOD. Identify the coordinates of D and the scale factor.
A.) D (0, −7 1/12); 2/5
B.) D (0, −1 1/5); 5/2
C.) D (0, −7 1/2); 5/2
D.) D (0, −1 1/5); 2/5
Answers
The coordinate of D is [tex](0, -1\frac{1}{5})[/tex] and the scale factor is 2/5.
The correct option is D.) D (0, −1 1/5); 2/5
To determine the coordinates of D, we will first determine the length of /OD/
Consider △AOC and △BOD. They are similar triangles.
From the diagram, we can determine the lengths of the sides of each triangle /OB/ = 2 units, /OA/ = 5 units, /OC/ = 3 units and /OD/ is unknown
Since △AOC is similar △BOD, then we can write that
[tex]\frac{/OB/}{/OA/} = \frac{/OD/}{/OC/}[/tex]
∴ [tex]\frac{2}{5} = \frac{/OD/}{3}[/tex]
[tex]/OD/ \times 5 = 2 \times 3[/tex]
[tex]/OD/ \times 5 = 6[/tex]
Then,
[tex]/OD/ = \frac{6}{5}[/tex]
∴ [tex]/OD/ = 1\frac{1}{5}[/tex]
Hence, the coordinate of D is [tex](0, -1\frac{1}{5})[/tex] since D is on the negative side of the y-axis.
For the scale factor,
Scale factor = [tex]\frac{/OB/}{/OA/}[/tex]
Scale factor = [tex]\frac{2}{5}\\[/tex]
Hence, the scale factor is 2/5
The correct option is D.) D (0, −1 1/5); 2/5
Learn more here: https://brainly.com/question/12180991
Answer:
D(0, −115); 25
Please answer this for me correctly. THANK YOU!!
Answers
Answer:
45
Hope this helps!
Find the area of the figure
Answers
Answer:
A = 76.912Step-by-step explanation:
Area of triangle with angle of 30°:
[tex]A_1=\frac12\cdot 5^2\cdot\sin(30^o)=\dfrac{25}4=6.25[/tex]
Area of triangle with angle of 50°:
[tex]A_2=\frac12\cdot 5^2\cdot\sin(50^o)=\dfrac{25}2\cdot0.766=9.575[/tex]
Area of the rest of the figure:
[tex]A_3=\dfrac{(360-30-50)^o}{360^o}\cdot\pi\cdot5^2=\dfrac79\cdot\pi\cdot25 =61.087[/tex]
Therefore:
[tex]A=A_1+A_2+A_3=6.25+9.575+61.087=76.912[/tex]
What is the area, in square centimeters, of the shape below? Express your answer as a fraction in simplest form.
Answers
Evaluate the expression. 8c3
Answers
Answer:
Answer 56..............
8 km
b
17 km
What is the length of the missing leg?
Answers
17^2-8^2=225
sr of 225= 15
:))
I invest $1,000 at 5% interest that compounds annually. How much will I have in 5 years?
Answers
Answer:
$250....................
pls and thanks Solve the equation 4(c-3) = 8 what is the value of c
Answers
Answer: C=5
Hope this helps!