Answer:
Step-by-step explanation:
[tex]\dfrac{y^2}{b^2} -\dfrac{x^2}{a^2} =1\\a=12\\b=5\\f^2=a^2+b^2=13^2\\Vertices:(0,5), (0,-5)\\Foci: (0,13),(0,-13)\\[/tex]
There are 18 girl in a class and boys in the class is 3:2. Find the number of boys.
Answer
12
Explanation
2xand 3x
let 3 be 3x
3x=18
X=18/3
X=6
now
2x=2multiply6
12
the number of boys is 12
Find the line of symmetry for the parabola whose equation is y = 2x^2 - 4x + 1.
wrong answers = reported
ty<3
Answer:
y = 2 x^2 - 4 x + 1
parábola
Step-by-step explanation:
 Which correlation best describes the data below.
no correlation
weak positive
strong positive
strong negative
Answer:
strong positive
Step-by-step explanation:
both variables are moving in the same direction and is nearly a line
As x increases, y increases. This has a strong positive correlation
calculate the area of shaded region
Answer:
528 cm squared
Step-by-step explanation:
A parallelogram (slanted shape at the bottom) is essentially the same area as a rectangle.
Therefore, both shapes have the same measurements.
Multiply the length and height of the rectangle to get its area: 22cm×12cm =264cm squared
Since the area of the rectangle corresponds geometrically to the area of the parallelogram, just multiply the area of the rectangle (264cm squared), by 2.
So 264×2, = 528cm squared
Ta da...
ASAP HELP!!!!!!!!!!!!!!!!!!!!!!!!!
Haley fills a balloon with water until it becomes a sphere with a diameter of 5 centimeters. Approximately, how much water does the balloon contain? Use 3.14 for .
A. 26.17 cubic centimeters
B. 65.41 cubic centimeters
C. 523.33 cubic centimeters
D. 104.67 cubic centimeters
Answer:
523.33 cm³
Step-by-step explanation:
Volume of sphere is given by the formula :
V = (4/3)×pi×r³
= (4/3)×3.14×125
= 523.33 cm³
how do we know a given number in the radical is whether rational or irrational
number is described as rational if it can be written as a fraction (one integer divided by another integer). A number is irrational if it cannot be written as a fraction. The decimal form of an irrational number does not terminate or recur.
Find a and b. PLS HURRY!
Answer:
[tex]a \: and \: b = \frac{5}{ \sqrt{2} } [/tex]
Step-by-step explanation:
[tex] \sin(45) = \frac{a}{5} \\ \frac{1}{ \sqrt{2} } = \frac{a}{5} \\ a = \frac{5}{ \sqrt{2} } \\ \\ \\ \\ \sin(45) = \frac{b}{5} \\ b = \frac{5}{ \sqrt{2} } [/tex]
I hope I helped you^_^
please help me out, please and thank you
Answer:
x=1°.
see the IMAGE FOR SOLUTION
A rectangular swimming pool has length 15w - 1 feet and width 9w + 2 feet. Find the perimeter of the pool.
Answer:
48w +2
Step-by-step explanation:
Perimeter of a rectangle=2( length+width)
=2(15w-1+9w+2)
=2(24w+1)
=48w+2
Mrs. Helton is making gift bags as prizes for her math classes. She has 30 little bags of Hershey Kisses and 15 Blow Pops. What is the greatest number of gift bags she can make if all gift bags are the same, and she does not want any left over?
Answer:
3
Step-by-step explanation:
I LOVE CANDY hope it helps 45/3 is hte gretaets factor the answer is 3.. i think
Answer:
45 gift bags.
Step-by-step explanation:
take 30 and divide it by 15. your answer is 2. 2 hk bags and 1 blow pop is equal to 3. so you would multiply 3 by 15 to get your conclusion
Write a slope-intercept equation for a line passing through the point (5,-5) that is parallel to the line x = -2. Then write a second equation for a line passing through the point (5,-5) that is perpendicular to the line x=-2.
Answer:
1. y=-2x+5
2. y=1/2x-7.5
Step-by-step explanation:
you plug in the cordinates for the y intercept and you already have the slope.
y=mx+b
m= slope which is -2
When you subtract two positive integers is the result always a positive integer
Sai vì số Nguyên dương nhỏ trừ số nguyên dương lớn bằng số nguyên âm
tan theta is equal to 2- cos theta find the value of sin theta
Answer:
sqrt(2)/2
Step-by-step explanation:
Given tan(x)=2-cot(x), find sin(x).
Rewrite in terms of sine and cosine:
sin(x)/cos(x)=2-cos(x)/sin(x)
Multiply both sides by cos(x)sin(x):
sin^2(x)=2sin(x)cos(x)-cos^2(x)
Rewrite cos^2(x) using the identity sin^2(x)+cos^2(x)=1:
sin^2(x)=2sin(x)cos(x)-(1-sin^2(x))
Distribute:
sin^2(x)=2sin(x)cos(x)-1+sin^2(x)
Subtracting sin^2(x) on both sides:
0=2sin(x)cos(x)-1
Add 1 on both sides:
1=2sin(x)cos(x)
Use identity sin(2x)=2sin(x)cos(x) to rewrite right:
1=sin(2x)
Since sin(pi/2)=1, then 2x=pi/2.
Dividing both sides by 2 gives x=pi/4.
So sin(pi/4)=sqrt(2)/2
A can do a piece of work in 3 days and B in 6 days andShyam in 12 days.In how many days will they finish it when both work at it.
Answer:
Step-by-step explanation:
= 1/3 + 1/6 + 1/12 (LCM 12)
= 4/12 + 2/6 + 1/12
= 6/12
= 1/2
Therefore 1/2 = 2 days
They will all work together and finish the job in 2 days
please click thanks and mark brainliest if you like :)
Form a formula based on the following situation
a) The sum of x and 2y is 14
Answer:
x + 2y = 14
Step-by-step explanation:
That’s the answer
Please help!!!.......thx
Step-by-step explanation:
sin and tan are the only ones with p positive valued
m + 7 is equal to -10
Answer:
m=-17
Step-by-step explanation:
-10-7=-17
Answer:
-17
Step-by-step explanation:
you firstly have to write the equation how it is in numerals which is
m+7=-10
then you have to group the like terms
m=-10-7
m=-17
I hope this helps
PLS HELP! Given the angles in the diagram below, what is m<2
Emília ganhou 350 reais de sua avó. Com esse dinheiro, ela comprou um sapato, e uma roupa que custou o dobro do preço do sapato. Os 200 reais que sobraram foram depositados por Emília em sua conta poupança.
Qual é a equação eu permite determinar o preço x, em reais, que Emília pagou por esse sapato?
A) x + 2× = 350
B) x + 2× 200 = 350
C) x + (x + 2) + 200 = 350
D) x + ײ + 200 = 350
I'LL GIVE BRAINLIEST !!! FASTER
Answer:
Option A
Step-by-step explanation:
angle a and angle are equal since the vertical lines are parallel and horizontal lines are not and a, b, c are corresponding angles
Question 31 (Essay Worth 5 points)
The position of an object at time t is given by s(t) = 1 - 12t. Find the instantaneous velocity at t = 2 by finding the derivative.
Answer:
-12
Step-by-step explanation:
ds/dt = d/dt ( 1-12 t)
ds/dt = -12
When t=2
ds/dt = -12
the study of the organization and collection of data is know as?
Answer:
investigation isanswer
please help me !! :)
one number is 4 less than 3 times another number. If their sum is increased by five,the result is 25. Find both the numbers.
Answer:
6 and 14
Step-by-step explanation:
let the second number=x
the first number=3x-4
(x+3x-4)+5=25
4x-4+5=25
4x+1=25
4x=25-1
4x=24
x=6
Since x is the first number,the first number is 6
second number=3•6-4
=18-4=14
Find the future sum of a present value of $2,000 deposited in a bank at 5% interested for 8 years, compounded continuously (F=Pert). Round answer to the nearest dollar. Use 2.718 for e.
I'll give a brainliest
Answer:
$2983.65
Step-by-step explanation:
A = $2000[tex]e^{8*.05}[/tex] =
pls help and explain. I will give brainliest
Answer:
4 2/3 hours
Step-by-step explanation:
There are 7 days in a week
2/3 of an hour per day * 7 days
2/3 *7 = 14/3 hours
Changing to a mixed number
4 2/3 hours
Answer:
4.667
Step-by-step explanation:
2/3*7=4.667 (if you need decimal notation)
If you need a mixed number:
4+2/3:-)
I hope this helps!
[tex]- RosalindCordelia[/tex]
HELPPP PLZZZZ DUE SOON
Answer:
3rd option
Step-by-step explanation:
Given T is the midpoint of SU , then
ST = TU , that is
9x = 4x + 25 ( subtract 4x from both sides )
5x = 25 ( divide both sides by 5 )
x = 5
Then
ST = 9x = 9 × 5 = 45
What is the value of |6x| - |- 2y| if x = - 3 and y= 5?
Answer:
8
Step-by-step explanation:
|6x| - |- 2y|
Let x = -3 and y = 5
|6*-3| - |- 2*5|
|-18| - |-10|
Taking the absolute values
18 - 10
8
solve this it attached
[tex]\\ \sf\longmapsto \dfrac{15}{k}[/tex]
k=3Put the value
[tex]\\ \sf\longmapsto \dfrac{15}{3}[/tex]
[tex]\\ \sf\longmapsto 5[/tex]
[tex]\large\bf{\orange{ \implies}} \tt \: \frac{15}{k} \\ [/tex]
Value of k is 3
[tex]\large\bf{\purple{ \implies}} \tt \: \cancel\frac{15}{3} \: = \: 5 \: \\ [/tex]
Question 19
How much sales tax will be paid on an iPhone costing $1289.00 and a 4.6% tax rate?
Answer:
59.294
Step-by-step explanation:
$1289×4.6/100
59.294