Answer:
4.4 hours
Step-by-step explanation:
Which equation represents the line that passes through the points (1, 1) and
(-4, 7)?
A. 5x + 6y = 11
B. 6x + 5y = 11
C. 6x - 5y = -11
D. 5x - y = -11
PLEASE HELP
ILL GIVE YOU BRAINIEST
Answer:
Option (B)
Step-by-step explanation:
Let the equation of the line is,
y = mx + b
Here m = slope of the line
b = y-intercept
Slope of the line passing through two points [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex] is,
m = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]
Slope of the line which passes through the points (1, 1) and (-4, 7) will be,
m = [tex]\frac{7-1}{-4-1}[/tex]
= [tex]-\frac{6}{5}[/tex]
By substituting the value of m in the equation,
y = [tex]-\frac{6}{5}x+b[/tex]
Since, this line passes through (1, 1),
1 = [tex]-\frac{6}{5}(1)+b[/tex]
b = [tex]1+\frac{6}{5}[/tex]
= [tex]\frac{11}{5}[/tex]
Therefore, equation will be,
[tex]y=-\frac{6}{5}x+\frac{11}{5}[/tex]
5y = -6x + 11
6x + 5y = 11
Option B is the answer.
2х + Зу = 9
3х + 5y = 16
Elimination
x=-3, y=5
2х + Зу = 9
3х + 5y = 16
6x + 9y = 27
6x + 10y = 32
-y = -5
y = 5
2x + 3(5) = 9
2x = 9-15
2x = -6
x=-3
HELP ASAP!! Solve for x and y.
Answer:
Y=90
X=180
Step-by-step explanation:
75% of 164 is _____________
Answer: 123 IS
Step-by-step explanation:
Answer: 123
Step-by-step explanation:
Don’t know how to do it with out a calculator, but you press 75 the the green 2nd button a then the number 2. Then multiply by 164.
I need help please very appreciate it
Answer:
x = 18.6
Step-by-step explanation:
I’m not going to show step-by-step on how I solved it, but the image below shows a triangle calculator that solved it.
Hope this helps! :)
Meg is a veterinarian. She found that 25% of the 24 dogs she saw this week were boxers. Steve is also a veterinarian. He found that 8, or 50%, of the dogs he saw this week were boxers. Does each person need to find the part, the whole, or the percent?
Answer:
Percent
Step-by-step explanation:
lol I just got it right
Which equation is an increasing linear relationship?
y=-100x+150
y=100x-150
y= -10x
What's the difference between weather vanes and anemometers?
Answer:
The second one
Step-by-step explanation:
The largest cookie ever baked measured a radius if 51 feet. Witch of these is the closest to the area of the cookie
Answer:
8171.28
Step-by-step explanation:
Area of a circle formula-
A= (pi)(radius^2)
pi= 3.14
to answer THIS question
(3.14) * (51)^2
(3.14) * (2601)
= 8171.28
A while back, Shelby paid a car insurance premium of $3,980 per year. Now she pays 5% more. What does Shelby pay now?
Answer:
5,970
Step-by-step explanation:
3,980x.5+3,980
If x is 5, then 6x=??
Answer:
30
Step-by-step explanation:
since x=5, and it's 6x, it'd be the same as 5x6, or 6(5).
Answer:
I think it should equal 30
Step-by-step explanation:
If x is 5 it would be 6(5) so you multiply 6 and 5 which equals 30
(sorry if i'm wrong)
Find the equation of the line
Do you mean the measure?
1st person to answer will receive brainliest!!!!
Answer:
ok
Step-by-step explanation:
:D
I need Help please #24
Answer:
13
Step-by-step explanation:
13 because 13 times 14 is 182
6) Find the value of y. (pic below)
A. 90 degrees
B. 135 degrees
C. 45 degrees
D. 180 degrees
Answer:
the answer is c
Step-by-step explanation:
if it is a right triangle most of the time the 2 acute angles will most likely be 45 degrees
Answer:C.45 degrees
Step-by-step explanation:
135º+yº=180º
y=180º-135º
y=45º
(Help needed ASAP I’m confused ) Solve the equation by using the distributive property first
Answer:
x=0
Step-by-step explanation:
simplify: 15(x-3) over 15 ( srry i dont know how to make that a fraction.)
3(2x-3)= 3x-9
3x-9=6x-9
move all terms containing x to the left side of the equation
-3x-9=-9
move all terms not containing x to the right side of the equation
-3x=0
divide both sides by -3 and simplify if needed
x=0
( hope this helped.)
Solve the equation 2(3x + 7) + 5 = 49.
Answer:
x=5
Step-by-step explanation:
Answer:
5
Step-by-step explanation:
What does a function and a non-function mean?
Answer:
A function is a relation between domain and range such that each value in the domain corresponds to only one value in the range. Relations that are not functions violate this definition. They feature at least one value in the domain that corresponds to two or more values in the range.
Step-by-step explanation:
Find the distance between the points (6,7) and ( – 3, – 5)
Answer:
(9,12)
Step-by-step explanation:
How many solutions does 4-3x=-4+3x
Answer:
no
Step-by-step explanation:
The circumefreence of a circle is 37.8. What is the area of the circle? Use 3.14 for pie
Answer:
b
Step-by-step explanation:
circumference= 2πr
37.8cm = 2πr
r= 6 cm
Area= πr^2
area = 113cm^2
How do I solve for x
Answer:
1. x = 3
2. x = 8
3. x = 5
4. x = 8
Step-by-step explanation:
1. 18 = 6x
divide both sides by 6
x = 3
2. x + 7= 15
subtract 7 from both sides
x = 8
3. 2x - 2 = 8
add 2 to both sides
2x = 10
divide 10 by 2
x = 5
4. -1 + x = 7
add 1 to both sides
x = 8
If log25 ~ 2.3219,
evaluate log280.
Answer:
You need to write log_2 80 in terms of log_2 5 , such that:
log_2 80 = log_2 (8*10)
Using the properties of logarithms, you need to convert the logarithm of product in summation of logarithms, such that:
log_2 (8*10)= log_2 8 + log_2 10
Since log_2 10 = log_2 (2*5) , yields:
log_2 (8*10)= log_2 8 + log_2 (2*5)
log_2 (8*10)= log_2 8 + log_2 2 + log_2 5
You need to write 8 as power of 2, such that:
log_2 (8*10) = log_2 (2^3) + log_2 2 + log_2 5
Using the power property of logarithms, log_a b^c = c*log_a b yields:
log_2 (8*10) = 3log_2 2 + log_2 2 + log_2 5
Since log_2 2 = 1 yields:
log_2 (8*10) = 3 + 1 + 2.3219
log_2 (8*10) = 4 + 2.3219 => log_2 (8*10) = 6.3219
Hence, evaluating the given logarithm , using the indicated properties of logarithms, yields log_2 (8*10) = 6.3219 .
Step-by-step explanation:
The value of [tex]log_2{80}[/tex] if [tex]log_25 = 2.3219[/tex] is 6.3219.
What is a logarithm?The logarithm is exponentiation's opposite function in mathematics.
This indicates that the exponent to which b must be raised in order to obtain a number x is the logarithm of x to the base b. For instance, because 100 = 10², the logarithm of 100 in base 10 is 2, or log10 = 2.
Given, [tex]log_25 = 2.3219[/tex].
Now, To obtain the value of [tex]log_2{80}[/tex] we'll break it into suitable smaller parts.
Therefore,
[tex]log_2{80} = log_2({8\times10})[/tex].
[tex]log_2{80} = log_28 + log_210[/tex]
[tex]log_2{80} = log_28 + log_2({2\times5})[/tex].
[tex]log_2{80} = log_28 + log_22 + log_25[/tex].
[tex]log_2{80} = 3 + 1 + 2.3219[/tex].
[tex]log_2{80} = 6.3219[/tex].
learn more about logarithms here :
https://brainly.com/question/30085872
#SPJ2
Sales at an airport shop has increased by 25 transactions to a total of 400 transactions per day. What is the increased transaction percentage?
Answer:
6.66
Step-by-step explanation:
I need the answers bad
Answer:
m<1=72
m<2=72
m<4=72
Step-by-step explanation:
Write a conjecture that describes the pattern below.
3, 9, 27, 81...
Answer:
3 times 3 is 9
9 times 3 is 27
27 times 3 is 81
Step-by-step explanation:
Nine less than the product of 21 and a number
Answer:
21x - 9
Step-by-step explanation:
math
Guess my number between 1-5 and u will get brainliest
Answer:
3
Step-by-step explanation:
Answer:
1
Step-by-step explanation:
if m*n=-12 and m+n=11 what is m? what is n?
x^2+11x-12=(x+m)(x+n)
Answer:
i think its -10
Step-by-step explanation:
hope im not wrong
The length of a rectangle is 1 7/9in and its width is 3/4 of its length Find the area of this rectangle
Answer:
l = 16/9 inches and w = 3/4 * 16/9, which equals 4/3
Step-by-step explanation:
A=l*w
16/9 * 4/3 = 64/27 = 2 10/27 sq in