x=45 becouse 180-90=90
and 90÷2=45
Find the center, vertices, and foci of the ellipse with equation x squared divided by 9 plus y squared divided by 25
Answer:
[tex]C=(0,0)[/tex]
[tex]F=(\pm 4,0)[/tex]
[tex]V=(\pm 5,0)[/tex]
Step-by-step explanation:
From the question we are told that:
The Equation
[tex]\frac{x^2}{9}*\frac{y^2}{25}[/tex]
Generally
From the Equation
[tex]a^2=25[/tex]
[tex]a=5\\b^2=9\\b=3[/tex]
Therefore
[tex]c=\sqrt{a^2-b^2}[/tex]
[tex]c=\sqrt{25-9}[/tex]
[tex]c=\sqrt{16}[/tex]
[tex]c=4[/tex]
Generally the equation for center is mathematically given by
[tex]C=(h,k)[/tex]
[tex]C=(0,0)[/tex]
Generally the equation for foci is mathematically given by
[tex]F=(h,k \pm c,0)[/tex]
[tex]F=(\pm 4,0)[/tex]
Generally the equation for vertice is mathematically given by
[tex]V=(h,k \pm a,0)[/tex]
[tex]V=(\pm 5,0)[/tex]
5/2x+1 + 8/2x+1, x≠-1/2
[tex] \frac{5}{2x + 1} +\frac{8}{2x + 1}[/tex]
[tex]= \frac{5 + 8}{2x + 1} [/tex]
[tex]= \frac{13}{2x + 1} [/tex]
How can I solve for x?
Answer:
37 degrees
Step-by-step explanation:
The angles within a triangle always add up to 180 degrees. Right angles are always 90 degrees. 53 + 90 = 143 degrees. 180 - 143 = 37 degrees
Quadrilateral LMNO is a parallelogram, and LM=24-9 and NO=y-2, find the value of "y" and the length of NO.
Answer:
y = 7
NO = 5
Step-by-step explanation:
Let the side of the parallelogram LM and NO given be 2y - 9 and y - 2
Since LMNO is a parallelogram, hence;
LM = NO
2y - 9 = y - 2
2y - y = -2 + 9
y = 7
Since NO = y - 2
NO = 7 - 2
NO = 5
what is the sign of -8+8
it is 0
there is no sign to -8 + 8
Answer:
Your answer would be 0
Step-by-step explanation:
if you were asking a question like, 8+8 your answer would be, 16. Correct me if I'm wrong. ☆
Please help, I’ll mark as brainliest!! The picture is above :)
Answer:
Isolate the variable by dividing each side by factors that don't contain the variable
Exact Form:
x = - 25/8 [tex]\frac{x}{y}[/tex]
Decimal Form:
x = -3.125
Mixed Number Form:
x = - 3/1/8 [tex]\frac{x}{y}[/tex]
Step-by-step explanation:
What is the equation of the line that passes through the points (15, 9) and (-2, 9)?
y=9
y=- 11/6x + 9
y= -17
y= 6x + 11
Answer:
y=-17x-25
Step-by-step explanation:
9-9=0
-2-15=-17
(y-9)÷(x+2)= -17
y-9=-17x-34
y= -17x-25
PLEASE NO LINKS, I will report you.
Solve for x.
Need help, please.
I also need explanation.
Answer:
for 18 x is 6 and for 20 it is 11
Step-by-step explanation:
For 18, since -1+2x and 5+x is the same thing, set up and equation. WE can simplify to -1+x=5 and then we get x=6
For 20, 18 is 11 since 18=-4+2x. If we simplify we get 22=2x then we can use algebra to say that x=11
Hope this helps :)
Answer:
18.) x = 6
20.) x = 11
Step-by-step explanation:
18.)
We know that line segments FC and ED are parallel to each other so they are congruent to each other:
-1 + 2x = 5 + x
-1 + x = 5
x = 6
20.)
We know that line segments DE and CF are parallel to each other so they are congruent to each other:
18 = -4 + 2x
22 = 2x
22/2 = x
11 = x
Hope this helps!
HELP!!!!!!! I need a answer
Answer:
124
Step-by-step explanation:
20*8=160
if you subtract you get 124
brainliest?
Answer:
168 correcction 124 ig
Step-by-step explanation:
11 times 8 = 88
i decided to make it a triangle so for the other side to split in half
10 times 16 divded by 2 = 160 and split it in half i will get 80 thus
80 + 88 = 168
Find the measure of the are or angle indicated. Assume that lines which appear tanget are tangents
Given:
In a circle, two chords AK and LJ intersect each other inside the circle at M.
Measure of arc AJ = 65 degrees.
Measure of arc KL = 85 degrees.
To find:
The measure of angle KML.
Solution:
Intersecting chords theorem: According to this theorem, if two chords intersect each other inside the circle then the measure of angle on the intersection is half of the sum of intercepted arcs.
Using Intersecting chords theorem, we get
[tex]m\angle KML =\dfrac{1}{2}(arcKL+arcAJ)[/tex]
[tex]m\angle KML =\dfrac{1}{2}(85^\circ +65^\circ )[/tex]
[tex]m\angle KML =\dfrac{1}{2}(150^\circ )[/tex]
[tex]m\angle KML =75^\circ[/tex]
Therefore, the measure of angle KML is 75 degrees.
Mark filled 36 glasses with orange juice for a camp breakfast. If each glass holds 1 cup of juice, how many pints of orange juice did Mark use?
Answer:
18 pints of juice
Step-by-step explanation:
1 pint is equal to 2 cups, so knowing this we just divide 36 by 2
36/2 = 18
An airline that wants to assess customer satisfaction chooses a random sample of 10 of its flights during a single month and asks all of the passengers on those flights to fill out a survey. This is an example of a
Answer:
) Cluster sample.
Step-by-step explanation:
Here are the options
A) Multistage sample.
B) Stratified sample.
C) Cluster sample.
D) Simple random sample.
E) Convenience sample.
A cluster sample is when a population is divided into groups known as clusters. Samples are then randomly selected from this sample. It is a method of probability sampling used for large populations.
The airline first divided the population of travellers by months travelled. this is the cluster. From within the cluster, 10 samples are then chosen
Advantages of a cluster sample
it is faster it is less expensiveIt reduces variabilityDisadvantages of a cluster sample
it only works well when population can be divided into clustersIt is affected by sampling errorPLEASE ANSWER QUICKLY don’t mind that i already clicked on one
I’LL mark as brainliest !!! Plz no links
Answer: 125
Step-by-step explanation: 20% prefer naxvip juice, which is 1/5 of 100, if 25 people is 20% of the whole sample, 25*5 = 125, would be the answer.
PLEASE HELP WILL MARK BRAINLIST
Which of the following correctly gives the center and radius of the circle defined by (2 -
- 7) + (y - 2)2 = 10?
O Center: (7, 2); Radius = 100
O Center: (7, 2); Radius - V10
O Center:(-7, - 2); Radius = 100
O Center:(-7, -2); Radius = 10
Answer:
Center = (7, 2); Radius = [tex]\sqrt{10}[/tex]
Step-by-step explanation:
(x - 7)^2 + (y - 2)^2 = 10
center = (7, 2)
Radius = [tex]\sqrt{10}[/tex]
Answer:
(x - 7)^2 + (y - 2)^2 = 10
center = (7, 2)
Radius = √10
A horizontal line passing through the point (-15,12)
Answer:
this is your answer........
Question mark 1: Match the triangle to correct function and answer
Answer:
Triangle 1 - [tex]m\angle A = 58^{\circ}[/tex], hypotenuse = 16
[tex]x \approx 8.479[/tex]
Triangle 2 - [tex]m \angle A = 44^{\circ}[/tex], adjacent leg = 18
[tex]x \approx 17.382[/tex]
Triangle 3 - [tex]m\angle A = 49^{\circ}[/tex], opposite leg = 12
[tex]x \approx 15.900[/tex]
Step-by-step explanation:
Each triangle is solved by means of trigonometric relations:
Triangle 1 - [tex]m\angle A = 58^{\circ}[/tex], hypotenuse = 16
[tex]\cos 58^{\circ} = \frac{x}{16}[/tex]
[tex]x = 16\cdot \cos 58^{\circ}[/tex]
[tex]x \approx 8.479[/tex]
Triangle 2 - [tex]m \angle A = 44^{\circ}[/tex], adjacent leg = 18
[tex]\tan 44^{\circ} = \frac{x}{18}[/tex]
[tex]x = 18\cdot \tan 44^{\circ}[/tex]
[tex]x \approx 17.382[/tex]
Triangle 3 - [tex]m\angle A = 49^{\circ}[/tex], opposite leg = 12
[tex]\sin 49^{\circ} = \frac{12}{x}[/tex]
[tex]x = \frac{12}{\sin 49^{\circ}}[/tex]
[tex]x \approx 15.900[/tex]
Jasiah wants to buy a bicycle that costs $330. He has saved $50 so far and will save $40 each week until he has enough money to buy the bicycle
Answer:
$280
Step-by-step explanation:
There are 2 ways to do the question.
Method 1: $330-$50=$280
Method 2: 7 days equals to one week=$40.
$40×7=$280
Hope these helps you!
Find the circumference of this circle, to the nearest hundredth. Be sure to use *actual* pi in the calculator.
Answer: 63.61
Step-by-step explanation:
The cost c per person to participate in a guided camping tour depends on the number of n participating in the tour. This relationship can be described by the function c = – 4n + 60, where 0 < n < 12. What is the rate of change described by this function?
Answer:
-4
Step-by-step explanation:
Given the function :
c = – 4n + 60
Where, c = cost of participation ;
n = number of persons
The cost equation can be related to the slope intercept, equation ;
y = mx + b
Where, m = Slope or rate of change
b = intercept
Comparing the slope intercept equation to the cost equation ;
m = - 4 ; Hence, the rate of change of cost is - 4
I’m really confused on how to write the range of inequality because it’s been a while. Can someone please help??
Answer:
y ≤ 0
Step-by-step explanation:
The arrow says that the function keep going down
the biggest y is 0
so we can write
y ≤ 0
*** help***
How many times greater is 8 x 10-2 than 2 x 10-6?
Answer:
it is six timessssssss 6
Answer:
8
Step-by-step explanation:
8(10-2)/2(10-6)
= (8*8)/(2*4)
= 64/8
= 8
Ajar contains 17 blue cubes, 4 blue spheres, 5 green cubes, and 16 green spheres. What is the probability of randomly selecting a blue object or a cube
Answer:
The answer would be 3/16
Step-by-step explanation:
Total no.of beads = 16
No.of blue beads = 3
Probability of picking a blue bead = 3/16
Mark said, “in the data set,4 5, 5, 8, the mean and mode the same.” Is he correct? Explain why or why not
Answer:
Mark is wrong.
Step-by-step explanation:
The mean of the data set is 5.5 because 4 + 5 + 5 + 8= 22. 22 divided by 4= 5.5. The mode is the number which shows up the most. 5 shows up the most in the data set, however 5 is not equal to 5.5. Therefore, Mark is incorrect.
Write a quadratic function f whose zeros are -3 and -8
Answer:
y = x² + 11x + 24
Step-by-step explanation:
y = (x + 3)(x + 8)
Expand
y = x² + 8x + 3x + 24
Combine like terms
y = x² + 11x + 24
need help. asap. also need an explanation for the problem. :)
Answer:
124858
Step-by-step explanation:
The first 4 digits are simple, you multiply the first digit of the equation by the 2nd digit and then for the other 2 you multiply the first digit of the equation by the 3rd digit.
6 + 2 + 8
6 * 2 = 12
6 * 8 = 48
Then the last 2 digits are the sum of the products of the 1 and 2 and 1 and 3 and subtract it by the 2
12 + 48 = 60
60 - 2 = 58
Put them together
Is this a parallelogram
Answer:
Yes because the first pare, the one line's are equal to eachother and the second pare, the two lines are equal to eachother
Step-by-step explanation:
Answer:
yes
Step-by-step explanation:
because each side is two equal triangles.
When Shantel converted jmd$16200 to Us dollars she received usd$135. Which exchange rate did Shantel receive?
Answer: [tex]1\ \text{USD}\ \equiv\text{jmd}\$120[/tex]
Step-by-step explanation:
Given
Shantel converted jmd$16,200 to USD $135
Using unitary method 1 USD is equivalent to
[tex]jmd\$16,200\equiv USD\$135\\\\USD\$135\equiv jmd\$16,200\\\\1\ \text{USD}\ \equiv \dfrac{16,200}{135}\\\\1\ \text{USD}\ \equiv\text{jmd}\$120[/tex]
Answer:
Step-by-step explanation:
150:600 simplified ratio
Answer:
It could be simplified as 1:4
Please mark brainliest!
Answer:
20%
I just know :3
A researcher took a random sample of 100 students from a large university. She computed a 95% confidence interval to estimate the average weight of the students at this university. The confidence interval was too wide to provide a precise estimate. True or false
Answer: False
Step-by-step explanation:
All the 100 students engaged in the experiment were picked on the basis that all the students of the university have a chance of being selected. The selected participants must have represented the whole university well.
So, having a 95% confidence interval that the experiment might have atmost 5% error prone is statistically enough and not too wide to give an accurate estimate.