Answer:
A
Step-by-step explanation:
Charlie bought a $3 kids meal so 28-3 is 25. Since he wants to buy sandwiches for 5 people, he'll have to divide 25 / 5 which is 5. So $5 or less.
The perimeter of the scalene triangle is 54.6 cm.
A scalene triangle where all sides are different lengths. The base of the triangle, labeled 3 a, is three times that of the shortest side, a. The other side is labeled b.
Which equation can be used to find the value of b if side a measures 8.7 cm?
8.7 plus b equals 54.6
17.4 plus b equals 54.6
26.1 plus b equals 54.6
34.8 plus b equals 54.6
Answer:
8.7 plus b equals 54.6
Step-by-step explanation:
4(8.7) + b = 54.6.
b = 19.8 cm.
The sum of the sides = the perimeter = 3a + a + b = 54.6.
Now a = 8.7, so:
3(8.7) + 8.7 + b = 54.6
4(8.7) + b = 54.6.
b = 54.6 - 4(8.7)
b = 19.8.
Answer: D.) 34.8 + b = 54.6
Step-by-step explanation: i hope this helps :)
The initial point of a⃗ is (−2,4), and its terminal point is (−5,−2). What is the value of ‖a⃗ ‖? Give your answer as a simplified radical.
Answer:
[tex]3\sqrt{5}.[/tex]
Step-by-step explanation:
It is given that the initial point of [tex]\vec{a}[/tex] is (-2,4) and terminal point is (-5,-2). So, [tex]\vec{a}[/tex] is defined as
[tex]\vec{a}=(-5-(-2))\hat{i}+(-2-4)\hat{j}[/tex]
[tex]\vec{a}=(-5+2)\hat{i}+(-2-4)\hat{j}[/tex]
[tex]\vec{a}=-3\hat{i}-6\hat{j}[/tex]
The magnitude of [tex]\vec{v}=a\hat{i}+b\hat{j}[/tex] is
[tex]|\vec{v}|=\sqrt{a^2+b^2}[/tex]
The magnitude of [tex]\vec{a}[/tex] is
[tex]|\vec{a}|=\sqrt{(-3)^2+(-6)^2}[/tex]
[tex]|\vec{a}|=\sqrt{9+36}[/tex]
[tex]|\vec{a}|=\sqrt{45}[/tex]
[tex]|\vec{a}|=3\sqrt{5}[/tex]
Modulus of magnitude is
[tex]||\vec{a}||=|3\sqrt{5}|=3\sqrt{5}[/tex]
So, the magnitude of [tex]\vec{a}[/tex] is [tex]3\sqrt{5}.[/tex]
help please, what is sum of the geometric series E6(4)k-1
Answer:
2,046Step-by-step explanation:
[tex]\sum\limits_{k=1}^{5}6\left(4\right)^{k-1}=6\left(4\right)^{1-1}+6\left(4\right)^{2-1}+6\left(4\right)^{3-1}+6\left(4\right)^{4-1}+6\left(4\right)^{5-1}=\\\\\\=6\cdot4^0+6\cdot4^1+6\cdot4^2+6\cdot4^3+6\cdot4^4=6+24+96+384+1536=\\\\=2,046[/tex]
or:
is geometric series: [tex]S_n=\dfrac{a_1(1-q^n)}{1-q}[/tex]
[tex]a_n=a_1\cdot q^{n-1}\quad\implies\quad\begin{cases}a_1=6\\q=4\\n=5\end{cases}[/tex]
so:
[tex]\sum\limits_{k=1}^{5}6\left(4\right)^{k-1}=S_5=\dfrac{6(1-4^5)}{1-4}=\dfrac{6(1-1,024)}{-3}=-2(-1,023)=2,046[/tex]
Answer:
B
Step-by-step explanation:
Edge2021
Solve for x:
11(x+2)+3(x+4)=34
Answer:
x=0
Step-by-step explanation:
first remove parentheses 11x + 22 + 3x +12 =34
then cancel equal terms 14x + 34 = 34
divide both sides by 14 14x = 0
solution x = 0
The length of a rectangle is 9 inches longer than the width. If the area is 205 square inches, find the
rectangle's dimensions. Round your answers to the nearest tenth of an inch.
Answer:
L=19.5in w=10.5in
Step-by-step explanation:
Draw a rectangle. If the length is 9 inches longer than its width, we can write the width as "w" and the length as the width + 9
Area is (width)(Length) = (width)(width+9)
W
----------
| |
| |
| | L = w+9
| |
| |
-----------
A = (w+3)(w)
A = w2 + 9w = 205.
(Problem states that area is 205 sq in)
Need to solve this quadratic equation
w2 + 9y - 205 = 0
Factor:
(w - 10.51) (w + 19.51) = 0
So
w - 10.51 = 0. or. w + 19.51 = 0
Solve these and get
w = 10.51. or. w = -19.51
Only one that makes sense in real life is the positive one.
So the dimensions are
Width = 10.51 inches
Length = 19.51 inches
Two sides of a triangle have lengths of 5 and 9. Which inequalities
represent the possible lengths for the third side, x? *
Answer:
4 < x < 14
Step-by-step explanation:
The third side is between the difference and the sum of the other two sides
9-5 < x < 9+5
4 < x < 14
:,))) what is the volume of the pyramid?
Answer: 1188
Step-by-step explanation: Multiply each volume.
Which expression does not represent "the sum of n and 6"? n + 6 6 n 6 + n
Answer:
Step-by-step explanation:
6n because 6n it's 6 times n
______________________________
Hey!!
Answer: 6n
6n does not represent "the sum of n and 6"
6n represents "the product of n and 6"
Hope it helps..
Good luck on your assignment
___________________________
Find the length of the hypotenuse in each right triangle. Round to the nearest tenth, if necessary
12.1 ft
14.7 ft
245 ft
15.7 ft
Plz help me it’s emergency
Answer:
idk
Step-by-step explanation:
1/4 can also be written as .25
1 divided by 4 is .25
114 times .25 = answer
154 times .25 = answer
One number is six times another number. Their difference is 35. What are the two numbers?
Answer:
The numbers are 7 and 42
Step-by-step explanation:
Let x and y be the numbers
x = 6y
x-y = 35
Substitute the first equation into the second equation
6y -y = 35
Combine like terms
5y = 35
Divide by 5
5y/5 = 35/5
y = 7
Now find x
x = 6*y
x = 6*7
x = 42
Answer:
The two numbers are 42 and 7.
Step-by-step explanation:
6x-x=35
5x=35
x=7
6(7)=42
7=7
Which is the graph of y?
Replace x with a number and solve for y. Plot the points out on a graph.
See the attached picture.
Rotate the image.
please help asap C: :D
Answer:
$997
Step-by-step explanation:
Base Salary: $150 (given)
Additional information on everything he sells: 14%
He sells $6050.00 last week, so then his commision would be 14% of the $6050.
x = 150 + ( 0.14 x 6050 )
OR
14/100 x 6050
would equal: $847
Total pay for last week would equal base salary and the additional pay.
$150 + $847
= $997
His total pay for last week would equal $997.
Hope helps! - Stargaze
let z - 2 be an odd integer, is z+1 odd or even? explain
Answer:
Even
Step-by-step explanation:
If z-2 is an odd integer, that means z itself is an odd integer because very other integer is odd. Next, an odd integer + 1 is always an even integer. Therefore, z + 1 is an even integer.
Which of the following exponential functions represents the graph below?
Answer:
C
Step-by-step explanation:
So you should be looking for the right function.
Remember that any number to the power of 0 is by definition 1.
3 * 1 = 3
In the graph you see point (0,3), so what you do is to check for each function if f(0)=3.
So if you substitute x= 0 the result should be 3.
3 * 1 = 3
The two functions that comply with that, are the ones in answers B or C.
In the graph you can also see point (1,6). So if you substitute x= 1 the result should be 6.
The only function that complies with that is in answer C.
jose runs 3 mikes in 28 minutes. At the same rate, how many miles would he run in 42 minutes?
Answer:
[tex]4.5 \: miles[/tex]
Step-by-step explanation:
[tex]3 \: miles \: in \: 28 \: minutes.[/tex]
[tex]x \: miles \: in \: 42 \: minutes.[/tex]
[tex]28x=42 \times 3[/tex]
[tex]28x=126[/tex]
[tex]\frac{28x}{28}=\frac{126}{28}[/tex]
[tex]x=\frac{9}{2}[/tex]
Answer:
[tex]4.5 \: \: miles \\ [/tex]
Step-by-step explanation:
[tex]3 \: \: miles = 28 \: \: min \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: x \: \: \: = 42 \: min[/tex]
use cross multiplication
[tex]42 \times 3 = 28 \times x \\ 12 6 = 28x \\ \frac{126}{28} = \frac{28x}{28} \\ x = 4.5 \: \: miles[/tex]
The line y=15x Intersex the quadratic function y=15x^2 at two points. what are the coordinates of the two points of intersection?
Answer:
D
Step-by-step explanation:
we can set up the equation as 15x = 15x^2
factoring we get
15x(x-1) = 0
So the solutions are when x are 0 and 1
this gives the coordinates
(0,0) and (1,15)
Find two consecutive whole numbers that square root 58 lies between.
Answer:
7 and 8
Step-by-step explanation:
the square root is 7.6
so it lies between 7 and 8
Two whole numbers that lie between √58 are 7 & 8
What are whole numbers?Whole numbers are a set of numbers including all natural numbers and 0. They are a part of real numbers that do not include fractions, decimals, or negative numbers. Counting numbers are also considered as whole numbers.
Given here, √58 =7.6517
Thus two whole numbers that are consecutive and √58 lies in between these two numbers are 7 & 8
Hence, Two whole numbers that lie between √58 are 7 & 8
Learn more about whole numbers here:
https://brainly.com/question/29766862
#SPJ2
Please help quickly
Answer:
2x + 3
Step-by-step explanation:
Given
(x² + 7x + 1) + (- x² - 5x + 2) ← remove parenthesis
= x² + 7x + 1 - x² - 5x + 2 ← collect like terms
= 2x + 3
Answer:
2x+3
Step-by-step explanation:
use the data from the table to create a scatter plot. plot al the data points from the table.
Answer:
Place a point at
8,4
5,7
6,5
10,4
2,11
4,7
3,9
1,13
1,11
3,12
4,2
7,2
5,24
9,3
5,5
Step-by-step explanation:
Answer:
Put points on
8,4
5,7
6,5
10,4
2,11
4,7
3,9
1,13
1,11
3,12
4,2
7,2
5,24
9,3
5,5
Step-by-step explanation:
A car salesman recorded the number of people who purchased a new car and the car's color. He then created the following bar graph:
Which of the following statements best compares the heights of the bars of the bar graph?
There are more people who purchased a red car than white and black cars combined.
There are more people who purchased a silver car than white and black cars combined.
There are twice as many people who purchased a red car than a black car.
There are 3 times as many people who purchased a black car than a silver car.
Answer:
There are twice as many people who purchased a red car than a black car.
What is the difference between (8y-7) and (1-3y)
Hint: Difference is another way to say subtraction.
A) work out (8 x 10^-3) x (2 x 10^-4). Give your answer in standard form.
B) work out (6 x 10^2) ÷ (3 x 10^-5). Give your answer in standard form.
Step-by-step explanation:
[tex]A) \\ (8 \times {10}^{ - 3} ) \times (2 \times {10}^{ - 4} ) \\ = 8 \times 2 \times {10}^{ - 3} \times {10}^{ - 4} \\ = 16 \times {10}^{ - 3 - 4} \\ = 16 \times {10}^{ - 7} \\ = 1.6 \times {10}^{ - 6} \\ \\ B) \\ (6 \times {10}^{ 2} ) \div (3\times {10}^{ - 5} ) \\ \\ = \frac{6 \times {10}^{ 2}}{3\times {10}^{ - 5}} \\ \\ = \frac{2\times {10}^{ 2}}{ {10}^{ - 5}} \\ \\ = 2 \times {10}^{ 2 + 5} \\ \\ = 2 \times {10}^{7} \\ [/tex]
If f(x) = 2(x)2 + 5 /(x+2)
Answer:
7.07
Step-by-step explanation:
f(x) = 2(x)^2 + 5 sqrt(x+2)
Let x= 0
f(x) = 2(0)^2 + 5 sqrt(0+2)
= 2*0 + 5 sqrt(2)
= 0 + 5 sqrt(2)
= 5 sqrt(2)
= 7.07106
To the nearest hundredth
= 7.07
Solve the equation.
r^4/7=16
Answer:
use the indices formula
Help pleaseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
Answer:
x=36
Step-by-step explanation:
3x+2x=180 (because they're supplementary angles)
5x=180
x=36
Help ASAp will give brainliest!!!!!!!
Answer:
x = 51
Step-by-step explanation:
2x + 4 + x + 23 = 180
3x + 27 = 180
3x = 153
x = 51
Answer:
Step-by-step explanation:
Because the lines are intersecting they are equal to 180. Therefore...
(x+23) + (2x+4) = 180
3x + 27 = 180
3x = 153
x = 51
Martina read that approximately 10% of all people are left-handed. She wants to design a
simulation to approximate the probability of selecting exactly 2 right-handed people when 3
people are randomly selected.
Part A
In the simulation, Martina has a spinner with sections of equal size. One section is labeled "L"
(left) and the rest of the sections are labeled "R" (right).
For this simulation to be as accurate as possible, what is the total number of
sections that the spinner should have?
Answer:
15%
Step-by-step explanation:
2. Janice is buying paint to paint her new apartment. The store sells paint in one-gallon cans. How accurate does her estimate
need to be for the amount of paint needed?
Answer:
its 60-10+x why, because she bought the dress with $60 and she received $10 dollars back. We don't know the variable.
Q. Write the slope-intercept form of the equation of a line using the given graph.
