Answer:
The equation Alejandra should write to represent the new line should be
y-3 = 2(x-10)
Step-by-step explanation:
The equation Alejandra wrote for the line her teacher sketched is
y-3 = 1/5 (x-10).
This can be related to the equation of a line in point slope form. The equation of line in point slope form
is
y - y₁ = m (x - x₁)
Where (x₁, y₁) is a point on line
and m is the slope of the line.
Hence, for the equation Alejandra wrote
The line went through point (3,10) and the slope of the line is 1/5.
Now, from the question
The teacher changed the line so it had a slope of 2, but still went through the same point. That is, the line still went through point (3,10).
In the new line the teacher sketched, the values of x₁ and y₁ remain the same but the value of the slope (m) has changed.
The slope of the new line is 2, that is, m =2.
Therefore,
The equation that represents the new line is
y-3 = 2(x-10)
Hence, the equation Alejandra should write to represent the new line should be y-3 = 2(x-10).
Combine these radicals!
Answer:
-4√5
Step-by-step explanation:
-√ 5 can be written as -1√ 5.
from there it is simple subtraction of the radicles
-1-3=-4 therefore, -1√ 5 - 3√ 5=- 4√ 5
can this problem be solved?
Answer:
The discriminant is -23
The equation has 0 real solution
Step-by-step explanation:
The discriminant of the quadratic equation ax² + b x + c = 0 is Δ = b² - 4ac
If Δ > 0, then the equation has two different real solutionsIf Δ = 0, then the equation has one real solutionIf Δ < 0, then the equation has no real solutionsLet us use the rule above to solve the question
∵ x² - x + 6 = 0
∴ a = 1, b = -1 and c = 6
∵ Δ = b² - 4ac
∴ Δ = (-1)² - 4(1)(6)
∴ Δ = 1 - 24
∴ Δ = -23
∴ The discriminant is -23
∵ -23 < 0
∴ Δ < 0
∴ The equation has no real solutions
∴ The equation has 0 real solution
What is (-1,2) rotated 90 degrees clockwise
Answer: 2, 1
Step-by-step explanation:
Whenever you rotate a point on a graph 90 degrees you go from (x,y) to (y,-x)
so -1, 2 goes to 2, 1
help me pleaseeee because i don’t understand at all.
Answer:
H
Step-by-step explanation:
A pair of earrings costs $50. Kohl’s is having a 15% off sale. How much will the customer save? PLSSSS HELP ME ILL GIVE BRAINLY TO WHO HELP ME PLS ITS URGENT!!!!!
Answer:
customer saves $7.50
Step-by-step explanation:
10% = $5
5%= $2.50
therefore 15% = $7.50
Answer:
the customer saves $7.50
Step-by-step explanation:
Trust me its right :)
What’s the answer to (10 - 2)3 + 18
Answer:
42
Step-by-step explanation:
Step 1:
( 10 - 2 ) 3 + 18 Equation
Step 2:
8 ( 3 ) + 18 Subtract Parentheses
Step 3:
24 + 18 Multiply
Answer:
42
Hope This Helps :)
original price: $20.00. It was marked up 25%. What is the new selling price?
Answer:
$25
Step-by-step explanation
Multiply $20 by 0.25 (which is 25% as a decimal)
$20 x 0.25 = $5
Add $5 to $20 which makes the answer $25
I reallly need help
Plllllllsssssssss........
Step-by-step explanation:
answer is b
6x-18y=198
Maria's fish tank has 16 liters of water in it. She plans to add 6 liters per minute until the tank has more than 64 liters. What are the possible numbers of minutes Maria could add water?
Answer:
8 minutes
Step-by-step explanation:
T-Shirts R Us advertises shirts as shown below.
3 white shirts and 2 black shirts are 10 dollars per shirt.
Which quantities in the advertisement represent a unit rate?
3 white shirts to 2 black shirts
2 black shirts for every 5 shirts
$10 per shirt
$50 per shirt
Answer:
$10 per shirt
$50 per shirt
Step-by-step explanation:
A unit rate is price per some number of items. $ per shirt is a price for one item, thus these are unit rates.
Answer
$10 per shirt so C or 3
Step-by-step explanation:
A scale drawing of an office space uses a scale of 2 in. : 3 yd. The scale drawing has an area of 12 square inches. What is the area of the actual office space?
Answer: The area of the actual office space = 18 sq. yards
Step-by-step explanation:
Formula : Image length = Scale factor x original length
Given: A scale drawing of an office space uses a scale of 2 in. : 3 yd.
i.e. scale factor = [tex]\dfrac23[/tex]
The scale drawing has an area of 12 square inches.
i.e. [tex]\text{12 sq. inches}=\dfrac23\times\text{area of the actual office space }[/tex]
[tex]\Rightarrow\ \text{Area of actual office space}=\dfrac{3}{2}\times12=18\text{ sq. yards}[/tex]
Hence, the area of the actual office space = 18 sq. yards
Given: line A is parallel to line B. What is the measure of angle 1?
Angle 1 = (x - 13)
Angle 2 = (6x + 18)
Answer:
19.2
Step-by-step explanation:
choose the equation that represents the graph below:
-23-x=x-5 one solution infinite solution or no solution?
Answer:
one solution
Step-by-step explanation:
-2x=18
x=-9
f(n)=2n + 4 find the inveres
Answer:
y = 1/2x - 2 OR f(n)= 1/2n - 2
Step-by-step explanation:
Start by rewriting with X and Y just for ease:
Swap X and Y's places
Solve for Y
y = 2x+4
x = 2y+ 4
x - 4 = 2y
1/2x - 2 = y
According to Teo's bread recipe, he should bake the bread at ° for 30 minutes. His oven measures temperature in °F. To what temperature, in °, should he set his oven? Rewrite the formula C= 59 F-32 to find the Fahrenheit temperature that is equal to °C.
Answer:
[tex]F = \frac{9}{5}(C + 32)[/tex]
Step-by-step explanation:
Given
[tex]C = \frac{5}{9}F - 32[/tex]
First, we need to solve for F
[tex]C = \frac{5}{9}F - 32[/tex]
Add 32 to both sides
[tex]C + 32 = \frac{5}{9}F - 32 + 32[/tex]
[tex]C + 32 = \frac{5}{9}F[/tex]
Multiply both sides by [tex]\frac{9}{5}[/tex]
[tex]\frac{9}{5} * (C + 32) = \frac{5}{9}F * \frac{9}{5}[/tex]
[tex]\frac{9}{5} * (C + 32) = F[/tex]
[tex]F = \frac{9}{5} * (C + 32)[/tex]
[tex]F = \frac{9}{5}(C + 32)[/tex]
Next, is to determine the temperature in degrees Fahrenheit
However, this is not stated the degree Celsius equivalent is not stated in your question.
So, I'll assume a value for it.
Assume that C = 23
Substitute 23 for C in [tex]F = \frac{9}{5}(C + 32)[/tex]
[tex]F = \frac{9}{5}(23+ 32)[/tex]
[tex]F = \frac{9}{5}(55}[/tex]
[tex]F = 9 * 11[/tex]
[tex]F = 99[/tex]
What is an equation of the line that passes through the points (-3, -1)(and (-4, -4)? Put your answer in fully reduced form.
Answer:
y=3x+8
Step-by-step explanation:
m=3
y-(-1)=3(x-(-3))
y+1=3x+9
y=3x+8
The equation of the line passes through the point (-3, -1)(and (-4, -4) is y=3x+8.
What is an equation of the line?An equation of the line is defined as a linear equation having a degree of one. The equation of the line contains two variables x and y. And the third parameter is the slope of the line which represents the elevation of the line.
The general form of the equation of the line:-
y = mx + c
m = slope
c = y-intercept
Slope = ( y₂ - y₁ ) / ( x₂ - x₁ )
Given that line passes through the points (-3, -1)(and (-4, -4)
The slope will be calculated as,
Slope = ( y₂ - y₁ ) / ( x₂ - x₁ )
Slope = ( -4 + 1 ) / ( -4 + 3 )
Slope = 3
The y-intercept is calculated as,
y = 3x + c
-1 = 3 x -3 + c
c = 8
The equation of the line will be,
y=3x+8
To know more about an equation of the line follow
https://brainly.com/question/18831322
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evaluate the following equations for the given value.
1. y=4x+1 when, x=0
2.y=x-3 when x= -6
3.y=7x-44,when x=5
Answer:
It's 555-2y=3x for 1.
2. 4x=334-6
3. 5*2333x-4y3=1
Step-by-step explanation:
Clarissa wants to see Luke Bryan in concert. Tickets cost $54.50 each. She has already saved $25 and is going to save $5 per week from her allowance. The inequality 25 + 5w ≥ 54.50 can be used to determine the number of weeks, w, Clarissa will need to save in order to be able to have at least enough money buy a ticket to the concert. Which statement about the number of weeks that Clarissa has saved is true?
Answer:
The minimum number of weeks Clarissa needs to save is 6 weeks.
Step-by-step explanation:
Clarisaa wants to go to the concert with the luke bryan
Ticket cost=$54.50
Inequality= 25+5w[tex]\geq[/tex] 54.50
upon solving the inequality we get
5w [tex]\geq[/tex] 54.50-25
5w [tex]\geq[/tex] 29.5
w [tex]\geq[/tex] 5.9 = 6weeks approximately
so The minimum number of weeks clarissa needs to save is 6 weeks
Is 80/10 equal to -8
Answer: No
Step-by-step explanation: Two positives divided never make a negative
Answer:
No, 80/10 turned into a whole number is 8, not -8.
Step-by-step explanation:
To get a whole (1), you need to have 10/10. Since we have 10/10 8 times (80/10) this means we get a whole number of 8, not -8. Therefore, its false. 80/10 is NOT equal to -8
How can you figure out the next number in the pattern below
Answer:
14
Step-by-step explanation: 29-1=28 28-2=26 26-3=23 23-4=19 19-5=14
i hope that helps
what is the greatest common factor of 13 and 39 please help quick
Answer:
13
Step-by-step explanation:
Answer:13 is the greatest common factor
Step-by-step explanation:
PLEASE HELP WILL AWARD BRAINLIEST IF GOOD EXPLANATION THANK YOU
x varies directly with y and inversely with [tex]z^{2}[/tex]. If x = 3 and y = 12 when z = 2, find y when x = 1 and z = 4.
Answer:
16
Step-by-step explanation:
x∞y/z²
x=ky/z²(where k is the constant)
3=12/2²k
3=12/4k
3=3k
3÷3=k
therefore k=1
x=1y/z²
making y the subject
xz²=y
1(4²)=y
1×16=y
16=y
Question 7 (1 point)
An item on the sale rack at a local supermarket was marked $3.42. The original price of the item was $4.75.
What was the percent of the discount?
Answer:
: Marked price of dinner set = $480. Discount = 18% of $480 = 0.18 × 480 = $86.40.
| Must include: 7Step-by-step explanation:
Answer:
Step-by-step explanation:
The real answer would 28%
least to greatest 4/5,-1.4, 0.75, -21/3,21%
Answer: -1.4, -21/3, 4/5, 21%
Step-by-step explanation:
what is 64.44 rounded to the nearest one?
Answer:
64.4
Step-by-step explanation:
Because the nearest one is the 4 in 0.4 and 4 isn't enough to make it a 5
Please help I’m really stuck
PLEASE! I NEED MAJOR HELP!!
Select the equation that is in Standard Form:
1.) 9x + 5y = 8
2.)9y = 5x + 8
3.)y = 9r + 5
Answer:
3.
Step-by-step explanation:
standard form: y=mx+b
Find the inverse g(x) of f(x) = 3x - 2.
Answer:no
Step-by-step explanation:
What’s 0.3 divided by 900
Answer:
3.3333333333333333333333. . . (3.3 rounded to the nearest tenth)
Step-by-step explanation: