Answer:
4[tex]\sqrt{10}[/tex]
Step-by-step explanation:
m/8 = 20/m
cross-multiply:
m² = 160
m = [tex]\sqrt{160}[/tex] = [tex]\sqrt{16}[/tex] · [tex]\sqrt{10}[/tex] = 4[tex]\sqrt{10}[/tex]
ILL GIVE BRAINIEST
HELP PLEASE
Answer:
0.125 ?
Step-by-step explanation:
A right triangle has side lengths 8 ,15 , 17 and as shown below.
Use these lengths to find TanA, sinA,cosA
Answer:
3
Step-by-step explanation:
If I multiply the number by 4 and then subtract 1, I get the same answer and then add 9
*The number is x
Write it as an equation.
Answer:
12 .
Step-by-step explanation:
12
Can someone help me please I am losing my mind
Answer:
5-x
Step-by-step explanation:
you will simplify the eq. it will be (x+8)-(x+8)(x-4)
taking (x+8) as common(1-x+4)
(x+8)(5-x)
Please helpppp I’ll make you the brainiest
Answer: D) f(z) = 7 to the power of 2.
i need urgent help with this
Answer:
Problem 1:
Width of the larger version = 2.99 in.
Problem 2:
Friday = 5⅞ miles
Step-by-step explanation:
Problem 1:
Since the cell-phones are similar in shape and the width and length of both are proportional, therefore:
Width of the bigger phone/Width of the smaller phone = length of the bigger phone/length of the smaller phone
Width of smaller phone = 2.6 in.
Length of smaller phone = 5.4 in.
Width of bigger phone = x = ? in.
Length of bigger phone = 6.21 in.
Therefore:
6.21/5.4 = x/2.6
Cross multiply
5.4 × x = 2.6 × 6.21
5.4x = 16.146
Divide both sides by 5.4
x = 16.146/5.4
x = 2.99
Width of the larger version = 2.99 in.
Problem 2:
Jen's goal for the 5 days = 22 miles
The number of miles she ran Mon to Thursday was given.
To meet her goal, let's find the number of miles she has to run to meet her goal.
Thus:
Number of miles to run on Friday = 22 - (4¾ + 5⅛ + 0 + 6¼)
Change to improper fraction
= 22 - (19/4 + 41/8 + 0 + 25/4)
= 22 - ((38 + 41 + 0 + 50)/8)
= 22 - 129/8
= (176 - 129)/8
= 47/8
= 5⅞ miles
Leo wants to determine the average number of texts middle school students send in a day. Since all middle school students are enrolled in history, he randomly surveyed 4 students from each of Mr. Barnes’s eighth-grade history classes. Ms. Lopez and Mrs. Frank also teach eighth-grade history. What should Leo do to ensure his sample is representative of all middle school students?
Answer:
D. He should survey all the students in all the history classes to make sure he collects enough data.
Step-by-step explanation:
correct on edge 2021
The sum of three consecutive integers is 9. What is the equation that represents the scenario?
a.n + (n + 1) + (n + 2) = 9
b.n – (n + 1) – (n + 2) = 9
c.n + (n – 1) + (n – 2) = 9
d.n=9
Answer:
a is correct ................
What is the formula for prism
Answer:
The formula for the volume of a triangular prism is:
V=(l)(w)(h)
Where l is the length of the triangle, w is the width of the triangle, and h is the height of the prism
The formula for the volume of a prism is V=Bh , where B is the base area and h is the height. The base of the prism is a rectangle. The length of the rectangle is 9 cm and the width is 7 cm.
Please mark as brainliest if answer is right
Have a great day, be safe and healthy
Thank u
XD
what is the value of x? i need the work for it as well thank you so much!
Answer:
x=19
Step-by-step explanation:
okay so all those angles there are pretty simple. because of the vertical angles theorem, the angles that go across from each other are equal to each other. On a thing like this those intersections are congruent. So knowing this we can assume that (6x+4)=118. so if you solve the basic algebra for that (you can use mathpapa or smt if you really need the work for that) then it comes out as x=19 which you can check.
6x+4=118
subtract 4 from both sides
6x=114
divide by 6 on both sides
x=19
Hope this helps!
1. Bill wants to buy coffee for his class at the LePhooPhoo Coffee Shop. He needs to buy 30 cups of coffee. The large coffees cost $4 and the medium coffees cost $3. If he spends $102 on coffee, how many of each size coffee did he buy?
Answer:
large = 12
medium = 18
Step-by-step explanation:
L + M = 30 => L = 30-M
4L+3M =102
substitute : L with M
=> 4(30-M)+3M =102
120-4M+3M = 102
- M = 102-120
-M = -18
=========> M = 18, L = 12
If the center of a circle is at
(5,-3) and its radius is 4, complete
its equation:
(x – [? ])2+(y - [ ])2= []
Answer:
[tex](x - 5)^2 + (y - (-3))^2 = 16[/tex]
Answer:
(x - 5)² + (y + 3)² = 16
Step-by-step explanation:
(x - h)² + (y - k)² = r²
(h, k) is the center = (5, -3)
r is the radius = 4
r² = 4² = 16
Help me with this pls
Answer:
b^-6
Step-by-step explanation:
(b^-2) / (b^4) = b^(-2 - 4)
Step-by-step explanation:
b¯²/bpower 4
So we can write 1/b²bpower 4
So therefore 1/bpower 6
Solve the quadratic by factoring.
x2- 20x + 38= -9x + 8
if {a \index{n}} be an Arithmetic sequence , calculate \frac{1}{a1a2} + \frac{1}{a2a3} +...+ \frac{1}{a39a40}
Given:
[tex]a_n[/tex] is an arithmetic sequence.
To find:
The value of [tex]\dfrac{1}{a_1a_2}+\dfrac{1}{a_2a_3}+...+\dfrac{1}{a_{39}a_{40}}[/tex].
Solution:
We have,
[tex]\dfrac{1}{a_1a_2}+\dfrac{1}{a_2a_3}+...+\dfrac{1}{a_{39}a_{40}}[/tex]
It can be written as:
[tex]=\dfrac{d}{d}\left[\dfrac{1}{a_1a_2}+\dfrac{1}{a_2a_3}+...+\dfrac{1}{a_{39}a_{40}}\right][/tex]
[tex]=\dfrac{1}{d}\left[\dfrac{d}{a_1a_2}+\dfrac{d}{a_2a_3}+...+\dfrac{d}{a_{39}a_{40}}\right][/tex]
[tex]=\dfrac{1}{d}\left[\dfrac{a_2-a_1}{a_1a_2}+\dfrac{a_3-a_2}{a_2a_3}+...+\dfrac{a_{40}-a_{39}}{a_{39}a_{40}}\right][/tex]
[tex]=\dfrac{1}{d}\left[\dfrac{1}{a_1}-\dfrac{1}{a_2}+\dfrac{1}{a_2}-\dfrac{1}{a_3}+....+\dfrac{1}{a_{39}}-\dfrac{1}{a_{40}}\right][/tex]
[tex]=\dfrac{1}{d}\left[\dfrac{1}{a_1}-\dfrac{1}{a_{40}}\right][/tex]
[tex]=\dfrac{1}{d}\left[\dfrac{a_{40}-a_1}{a_1a_{40}}\right][/tex]
[tex]=\dfrac{1}{d}\left[\dfrac{a_1+(40-1)d-a_1}{a_1a_{40}}\right][/tex] [tex][\because a_n=a_1+(n-1)d][/tex]
[tex]=\dfrac{1}{d}\left[\dfrac{39d}{a_1a_{40}}\right][/tex]
[tex]=\dfrac{39}{a_1a_{40}}[/tex]
Therefore, the value of given expression is [tex]\dfrac{39}{a_1a_{40}}[/tex].
Plz help will mark brainliest plz show work!!
Answer:
C 19.2
Step-by-step explanation:
Corresponding parts have the same proportion
x/24 = 20.8/26
multiply both sides by 24
x = 20.8/26 * 24
x = 19.2
Answer:
C
Step-by-step explanation:
Since the triangles are similar then the ratios of corresponding sides are equal, that is
[tex]\frac{AC}{DF}[/tex] = [tex]\frac{AB}{DE}[/tex] , substitute values
[tex]\frac{x}{24}[/tex] = [tex]\frac{20.8}{26}[/tex] ( cross- multiply )
26x = 499.2 ( divide both sides by 26 )
x = 19.2 → C
Pls anyoneee I need help with this problem
Janet had 42 marbles. ⅚ of them were blue. The rest were red. How many marbles were blue?
Answer:
35 marbles were blue
Step-by-step explanation:
42/6 = 7
7 x 5 = 35
can someone help me??
Answer:
8) 10 15/16 ft³
9) 20 5/6 ft³
Step-by-step explanation:
Volume of a rectangular prism is
l * b * h,
Question 8
We're given the area
Area = l * b
So we substitute the area for length and breadth.
Volume = Area * height
Volume = 4 3/8 * 2 1/2
Volume = 35/8 * 5/2
Volume = 175/16
Volume = 10 15/16 ft³
Question 9
Volume = 5 * 1 2/3 * 2 1/2
Volume = 5 * 5/3 * 5/2
Volume = 5 * 25/6
Volume = 125/6
Volume = 20 5/6 ft³
HELP ME OUT GUYS!!!! Question is in the screenshot below.
Answer:
87.55 [tex]cm^2[/tex]
Step-by-step explanation:
2. A(an) ______________of a prism is a perpendicular segment that joins the planes of the bases. (The height h is the length of one.)
Answer:
A(an) altitude of a prism is a perpendicular segment that joins the planes of the bases. (The height h is the length of one.)
Step-by-step explanation:
AN ALTITUDE - An altitude of a triangle is a line segment that passes through a vertex and is perpendicular to (i.e. forms a right angle with) the base line (the side opposite the vertex). The expanded base of the altitude is the line that contains the opposing side. The foot of the altitude is the point where the extended base meets the altitude. The area of a triangle can be calculated using altitudes: one half of the product of an altitude's length and its base's length equals the triangle's area. As a result, the longest altitude is perpendicular to the triangle's shortest side. Through trigonometric functions, the heights are also connected to the triangle's sides.
Hence , the answer is an altitude .
please help me asap i’ll give you a thanks and 10 points
Jake throws a stone off a bridge into the river. The stones height in meters above the water is based on the time in seconds after jake threw the stone. The quadratic equation y=-5^2+10x+15 represents the scenario
Answer:
The stone will hit the water after 3 seconds
Step-by-step explanation:
Given
[tex]y = -5x^2 + 10x +15[/tex]
Required
At what time will the stone enter the water
When the stone enters the water;
[tex]y = 0[/tex]
So, we have:
[tex]-5x^2 + 10x +15 = 0[/tex]
Divide through by -5
[tex]x^2 -2x -3 = 0[/tex]
Expand
[tex]x^2 +x -3x -3 = 0[/tex]
Factorize
[tex]x(x +1) -3(x +1) = 0[/tex]
Factor out x + 1
[tex](x -3) (x +1) = 0[/tex]
Solve for x
[tex]x - 3 = 0\ or\ x + 1 = 0[/tex]
[tex]x = 3\ or\ x = -1[/tex]
x (time) cannot be negative.
So:
[tex]x = 3[/tex]
PLEASE HELP ME WITH THIS ALGEBRA PROBLEM!!
Answer:
Solution given.
centre (h,k):(-6,1)
radius (r)=2
we have
equation of a circle is:
(x-h)²+(y-k)²=r²
(x+6)²+(y-1)²=2²
(x+6)²+(y-1)²=4 is a required equation of a circle.
HELP PLEASE!!!
The speed limit on the highway is no more than 55 mph. Which graph represents all of the possible speeds that break the speed limit on the highway?
helppp I’m not good with this stuff lol
Answer:
that is you my question is wrong for me
Fill in the blanks. Then, choose the property of addition you used.
_ + 3 = 3 + 7 is it: associated property, commutative property, or identity property?
0 + _ = 5 is it: associated property, commutative property, or identity property?
2 + (6 + 8) =(2 + 6)+ _ is it: associated property, commutative property, or identity property?
can someone please help me?
Answer:
_7 + 3 = 3 + 7 : commutative property,[if something is added or subtracted]
0 +5 _ = 5 is it: identity property.[if 0 is added or subtracted]
2 + (6 + 8) =(2 + 6)+ _8 associated property
[if added or multiplied]
I need help ASAP
For which function and interval can the extreme value theorem be applied?
f (x) = StartFraction x Over (x minus 6) squared EndFraction over the interval [3, 5]
f (x) = StartFraction negative 5 Over 2 (x minus 7) cubed EndFraction over the interval (6, 8)
f(x) = 4 tan(πx) over the interval [0, 1]
f(x) = 3ex + 1 over the interval (1, 3)
Answer:
A) f(x)=x/(x-6)^2 over the interval [3, 5]
Step-by-step explanation:
got it right on edge :) good luck!
Answer:
A
Step-by-step explanation:
got it on edge!!
The calculator command normalcdf returns the _______ that a randomly selected value falls in a given reigon of a normal probability
Answer:
The percentage of area under a continous probability curve from negative infinity to x.
Step-by-step explanation:
The normalcdf means the normal cumulative density function, it can be accessed from the TI Calculators from the DIST section which also includes the normalcdf, invNorm, tpdf and other distribution functions.
The syntax is as follows :
normalcdf (lower bound, upper bound, mean, standard deviation)
Hence, to Obtian the probability that a value is between a and b, with mean, x and standard deviation, s
The normalcdf is written as normalcdf(a, b, x, s)
PLEASE ANSWER STRAIGHT AWAY
Answer:
The 4 packe is better value.
Answer:
The 4 pack has better value.
Step-by-step explanation:
To find the toilet roll price, divide by the number of rolls.
2.04 ÷ 4 = 0.51
4.68 ÷ 9 = 0.52
0.52 > 0.51
So, the 4 pack has better value.
Have a wonderful day! :)