Answer:
d) 87
Step-by-step explanation:
to solve this lets set up the equation
[tex]\frac{85+70+98+x}{4} =85\\\frac{253+x}{4} =85[/tex]
then we multiply 4 on both sides
253+x=340
and subtract 253 on both sides
x=87
to double check take the averages
(87+85+70+98)/4=85
find the hcf of 52 and 117 and express it in the form of 52x + 117y
The radius of a circle is 7.2 cm. Find the circumference to the nearest tenth.
please help !
Answer: 45.24
Step-by-step explanation:
hii this is complete the shape will give brainliest
Answer:
d
Step-by-step explanation:
CAFDYahi Sahi answer hai bhai
y = -3x + 4
y = 3x - 2
graph
Answer:
Look at the graph bellow
Step-by-step explanation:
use the slope and y-intercept to graph.
I NEED THIS ANSWERED QUICKKKK
Answer:
2/4=4/8
Step-by-step explanation:
you do 2×2=4 and 4×2=8. You multiply both denominators by 2.
A flagpole casts a shadow 15 feet long. Brad is 6 feet tall. If Brad casts a 4.5ft shadow, how tall is the flag pole? (Will mark brainliest!!)
Need help quick pls 10 points
Answer:
[tex] \boxed{ \tt{x = \frac{45}{5} = 9}}[/tex]
In order to become a member of the library all star members club there is a $40 signup fee and a $2 monthly fee
Answer:
do you need an equation? if so it would be 2x+40
Step-by-step explanation:
1) Identify the percent of change as an increase or a decrease and find the percent of change. 50 meals to 75 meals.
Answer:
increase of 50%
Step-by-step explanation:
its increasing cuz 75 is more than 50 and its 50% cuz 75-50 is 25 so you know it increased by 25 meals so you need to find what percent 25 is of 50 and 25 is 50% of 50
Answer:
50%
Step-by-step explanation:
half of 50 is the same as 50% of 50
so...
25 = 50% of 50
therefore...
50 + 25 is the same as 50 + 50%
hope this helps
y=46(1.034) x growth or decay
Answer:
growth
Step-by-step explanation:
1.034 < 1 means the number will get larger
Answer:
Step-by-step explanation:
Since the ratio or rate is greater than one this is an exponential growth function
Select the correct answer.
A machining company needs to manufacture more than 20 fixtures in a day. The company uses five identical machines to make the fixtures. If each machine produces x fixtures, which inequality represents this situation?
A.
5x > 20
B.
5x < 20
C.
5x > 20 + 5
D.
5x < 20 + 5
Answer:
I thinks its D.
Step-by-step explanation:
A = {multiples of 3 between 20 and 32} B = {odd numbers between 20 and 32} C = {even numbers between 20 and 32} list the members of A - B list the members of A - C
Step-by-step explanation:
We have to list the elements present in each set.
A = {multiples of 3 between 20 and 32}
A = {21, 24, 27, 30}
B = {odd numbers between 20 and 32}
B = {21, 23, 25, 27, 29}
C = {even numbers between 20 and 32}
C = {20, 22, 24, 26, 28, 30, 32}
a) list the members of A ∪ B
This means to select the elements of sets A and B
A ∪ B = {21, 23, 24, 25, 27, 29, 30}
b) list the members of A ∩ C
This means to only pick the elements that are present in both A and B
A ∩ C = {24, 30}
Help with this it’s due today! Will mark brainliest
Answer:
1.25*
2.6.36
3.556.90
4.23*
5.5342yd
6.3490km
pls make sure mark me brainly❤️❤️
What is the reflection rule that maps the triangle to its image?
P(8,4), Q(-6,5), R(4,5) and P (8,-12), Q'(-6,-13), R'(4,-13)
WILL MARK BRAINLIEST!!!
If angle ABC has a measure of 4a+10 degrees, and angle CBD had a measure of 6a degrees, then what is the value of A? Find the measurement of angle ABC. SHOW YOUR WORK!
9514 1404 393
Answer:
a = 17∠ABC = 78°Step-by-step explanation:
The marked angles form a linear pair, so have a sum of 180°.
(4a +10) +(6a) = 180
10a = 170 . . . . . . . . . . subtract 10
a = 17 . . . . . . . . . . . . . divide by 10
__
Then the measure of angle ABC is ...
∠ABC = 4a +10 = 4(17) +10 = 68 +10 . . . . . substitute 17 for 'a'
∠ABC = 78°
HELP ME ASAP !!!!!!!*
Answer:
d is correct i think
Step-by-step explanation:
My brain aint working
The function y=h(x) is defined as follows:
h (x) ={x^2 for x<0 ,3-x for 0≤x<1, x^3 for 1≤x≤3, 5 for x>3
h(1)= and h(4)=
Answer:
h(1) = 1
h(4) = 5
Step-by-step explanation:
Since 1 is in the interval 1 ≤ x ≤ 3, you must substitute 1 into the expression [tex]x^{3}[/tex]
So, h(1) = [tex]1^{3}[/tex] = 1
Since 4 is in the interval x > 3, and all values of x > 3 gives an output of 5, then h(4) = 5
A fundraiser at the school raises 617.50. they sent 58.45 to local charities what percent of the money went to charities pls help ASAP
Step-by-step explanation:
you do 58.45 / 617.50 × 100 = 9.46%
hope this helps you
What is the cosine of angle P?
The cosine is the ratio of the base and hypotenuse. Then the value of the cosine of angle P will be q / r.
What is trigonometry?The connection between the lengths and angles of a triangular shape is the subject of trigonometry.
The right-angle triangle PRQ is given in which angle R is a right angle.
Then the value of the cosine of angle P will be
The cosine is the ratio of the base and hypotenuse.
Then we have
cos P = q / r
More about the trigonometry link is given below.
https://brainly.com/question/22698523
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The slope is -8. The point
(3, 12) lies on the line. What is the equation for each linear
Multiply. Write in simplest form. Help pls!! Tell me the answer no decimals needed just a fraction and simplified!! 2 3/5 x 3 7/8
Answer:
10 3/40
Step-by-step explanation: hope i helped
The person who can come up with a good caption for either photo gets brainliest
Plz don't joke This is for school
Answer:
One hour’s sleep before midnight is worth three after.
Answer: You may laugh or whatever but for that london one
Step-by-step explanation:
A beautiful city of night.
en un gimnasio pusieron 27 filas de sillas . en cada fila pusieron 48 sillas , cuantas sillas se pusieron en el gimnasio?
Answer:
1296
Step-by-step explanation:
Answer:
what i dont understand the word
PLEASE HELP (3^6 y^-5)^2
Answer:
Step-by-step explanation:
need this one 3.97x62.4
Answer:
247.728
Step-by-step explanation:
(3.97)(62.4)
=247.728
A triangle with Side lengths a units, b units, and c units is shown.
WHICH EQUATION IS TRUE FOR THE TRIANGLE?
A- Sin (55°)=a/c
B- Cos(55°)=c/b
C- Cos(55°)=a/b
D- Tan(55°)=c/a
Will give brainliest!
Option A is the correct answer because the ratio between the opposite side and the hypotenuse side is correct.
Triangle :
A right-angled triangle is a triangle, that has one of its interior angles equal to 90 degrees or any one angle is a right angle. Therefore, this triangle is also called the right triangle or 90-degree triangle. The right triangle plays an important role in trigonometry. Let us learn more about this triangle in this article.
A triangle with Side lengths a unit, b units, and c units.
"Opposite" is opposite to the angle θ
"Adjacent" is adjacent (next to) to the angle θ
"Hypotenuse" is the long one
A)
Sin 55 = a/c
Sin θ = opposite / hypotenuse
Option A ) is correct Sin 55 = a/c
B)
Cos(55°)=c/b
Cos θ = Adjacent / hypotenuse
Cos 55 = c/ b is not equal to the Adjacent / hypotenuse
Option B) is not a correct answer because the ratio is between Adjacent and Hypotenuse.
C)
Cos(55°)=a/b
Cos θ = Adjacent / hypotenuse
Cos 55 = a/ b is not equal to the Adjacent / hypotenuse
Option C) is not a correct answer because the ratio is between Adjacent and Hypotenuse.
D)
Tan(55°)=c/a
Tan θ = Opposite / Adjacent
Tan 55 = c/a is not equal to the Opposite / Adjacent
Option D) is not a correct answer because the ratio is between Opposite and Adjacent.
Learn more about Trignometry : brainly.com/question/22986150
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The vertex of a parabola is (-1, -8) and the zeros are (-5, 3) Determine the equation of the parabola in standard and factored form
Answer:
Part A
The equation of the parabola in standard form is f(x) = 0.5·x² + x - 7.5
Part B
The equation of the parabola in factored form is f(x) = 0.5·(x + 5)·(x - 3)
Step-by-step explanation:
The coordinates of the vertex of the parabola, (h, k) = (-1, -8)
The zeros of the parabola = -5, 3
Part A
The quadratic equation representing the parabola can be written as follows;
y = a·(x - h)² + k
The standard form of the equation is f(x) = a·x² + b·x + c
k = c - b²/(4·a)
h = -b/(2·a)
c = k + a·h² = -8 + a
From the zeros of the parabola, we have;
f(-5) = a × (-5)² + b×(-5) + c = 25·a - 5·b + c = 0
f(3) = a × (3)² + b×(3) + c = 9·a + 3·b + c = 0
Therefore, we have;
25·a - 5·b + c = 0...(1)
9·a + 3·b + c = 0...(2)
From which we have;
25·a - 5·b + c = 25·a - 5·b - 8 + a = 26·a - 5·b - 8 = 0
9·a + 3·b + c = 9·a + 3·b - 8 + a = 10·a + 3·b - 8 = 0
We then have;
26·a - 5·b = 8...(3)
10·a + 3·b = 8...(4)
Making 'b', the subject of both equations (3) and (4), equating the values, we find the value of 'a' as follows;
From equation (3), we have;
26·a - 5·b = 8
∴ b = (26·a - 8)/5
From equation (4), we have;
10·a + 3·b = 8
∴ b = (8 - 10·a)/3
From b = b, by transitive property, we have;
(26·a - 8)/5 = (8 - 10·a)/3
3 × (26·a - 8) = 5 × (8 - 10·a)
78·a - 24 = 40 - 50·a
∴ 128·a = 64
a = 64/128 = 1/2 = 0.5
a = 0.5
∴ b = (26·a - 8)/5 = (26 × 0.5 - 8)/5 = (13 - 8)/5 = 1
b = 1
c = -8 + a
∴ c = -8 + 0.5 = -7.5
c = -7.5
The equation of the parabola in standard form is therefore presented as follows;
f(x) = 0.5·x² + x - 7.5
Part B
The equation of the parabola in factored form is given as follows;
With the aid of a graphing calculator, we have;
f(x) = 0.5·x² + x - 7.5 = 0.5×(x² + 2·x - 15) = 0.5·(x + 5)·(x - 3)
The equation of the parabola in factored form is f(x) = 0.5·(x + 5)·(x - 3)
Find the missing angles?
Answer:
100°
Step-by-step explanation:
Since x and the 100 degree angle which is highlighted in blue are vertical to each other, they are parallel to each other as it is vertically opposite angles.
If they are parallel, it means
Angle highlighted in blue = 100°
x = 100°
pls help will give brainliest
Answer:
Step-by-step explanation:
-6(3) + 2(2) =-14x=3
y=2
-2(7) - 2(2) = -10x=7
y=2
Mary is spending money at the average rate of $5 per day. After 14 days she has $68 left. The amount left depends on the number of days that have passed. write an equation for the situation
A. Y-68=-5(x-14) B. Y+68=5(x+14) C. Y+68=-5(x-14) D. Y+68=5(x-14)
Answer:
Step-by-step explanation:
Michael C is correct, but you were asking about the "point slope" form
y - y1 = m(x-x1)
As Michael stated, the slope intercept form will be y = -3x + b
since the amount decreases by $3 per day...
Our slope is -3 so m=-3
We have a point (x1,y1) = (14, 68)
y-68 = -3(x-14)
y-68 = -3x + 42
y = -3x + 110