If x + 3 = 3x - 1 what is the value of x-1 ?
(hint: solve the first equation and Then substitute into the 2nd expression)
Answer: x=2.5, and x-1=1.5
Step-by-step explanation:
x + 3 = 3x - 1
(-x)= 3 = 2x - 1
(÷2) = 1.5 = x - 1
(+1)= 2.5 = x
What is the slope of 8,2 & 8,4
Answer:
infinity
Step-by-step explanation:
No fr it is that i even double checked by looking it up
Draw the original figure if a scale factor of 3/2 was applied to the original figure to create this scaled copy: PLS HELP THIS IS DO IN 20 MINUTES
Rembrandt framed his masterpiece. The painting by itself is a rectangle with length 20 \text{ cm}20 cm 20, start text, space, c, m, end text and width 16 \text{ cm}16 cm 16, start text, space, c, m, end text. The painting and frame together form a larger rectangle with length 25 \text{ cm}25 cm 25, start text, space, c, m, end text and width 20 \text{ cm}20 cm 20, start text, space, c, m, end text. Find the area of the frame.
Answer:
180cm²
Step-by-step explanation:
Area of the frame = area of the frame+ painting - area of painting.
Area of a rectangle = Length × Width
Area of the painting = 20cm×16cm
Area of the painting = 320cm²
Area of the paint+ frame = 25cm×20cm
Area of the paint+ frame = 500cm²
Area of the frame = 500cm²-320cm²
Area of the frame = 180cm²
Hence the area of the frame is 180cm²
Lisa runs between 5 and 7 miles per day. It takes Lisa 10 minutes to run one mile. What is a reasonable amount of time that Lisa
spends running every day?
Answer:
50-70 minutes
Step-by-step explanation:
Evaluate the function for the indicated values of x.
function
f(−10) =
f(2) =
f(−5) =
f(−1) =
f(8) =
Answer:
-19
4
-9
1
-5
the last person got the last one wrong
A function assigns the value of each element of one set to the other specific element of another set. The value of f(8) is 5.
What is a Function?A function assigns the value of each element of one set to the other specific element of another set.
The function that is given is mentioned below. Now, the value of the function can be found as shown below.
A.) f(-10)=?
When the value x is -10, it will lie in the first category of the function, therefore, the function for this value of x will be,
[tex]f(x) = 2x+1\\\\f(-10) = 2(-10)+1\\\\f(-10) = -20+1 = -19[/tex]
B.) f(2) = ?
When the value x is 2, it will lie in the second category of the function, therefore, the function for this value of x will be,
[tex]f(x) = x^2\\\\f(2) = 2^2 = 4[/tex]
C.) f(-5)=?
When the value x is -5, it will lie in the first category of the function, therefore, the function for this value of x will be,
[tex]f(x) = 2x+1\\\\f(-5) = 2(-5)+1\\\\f(-5) = -10+1 = -9[/tex]
D.) f(-1)=?
When the value x is -1, it will lie in the second category of the function, therefore, the function for this value of x will be,
[tex]f(x) = x^2\\\\f(-1) = (-1)^2 = 1[/tex]
E.) f(8)=?
When the value x is 8, it will lie in the third category of the function, therefore, the function for this value of x will be,
[tex]f(x) = x-3\\\\f(8) = 8-3 = 5[/tex]
Learn more about Function:
https://brainly.com/question/5245372
#SPJ2
what expression is equivalent
6(3+6x)
Answer:
i think maybe 6*9x
Step-by-step explanation:
Step-by-step explanation:
So this is how it works
The bracket represents times. So, you have to times 6 to 3 and also 6x
Next, write down the values after times it. You will get 18+36x
NOTE: This is for expansion only
For factorisationBring the x to your right and bring the numbers to your left. Then calculate the value and that's your answer
Hope this is correct and helpful
HAVE A GOOD DAY!
Need help with this question
the first is 1 and the second is -4
Complete the sentence.
A regular pentagon and a regular hexagon can intersect in
a line
a ray
a line segment
a rectangle
Submit
Answer:
A line segment
Step-by-step explanation:
Its a two step equation x−17/3=−3
Answer:
x=8/3
hope this is right
help please with this question
Answer:
b. x - 2y = 4
Step-by-step explanation:
The two points on the graph are (0, -2) and (4, 0).
Find slope:
m = (y₂ - y₁) / (x₂ - x₁)
= (0 - (-2)) / (4 - 0)
= 2 / 4
= 1 / 2
Find y intercept using anyone of the points above:
y = mx + b
-2 = 1/2(0) + b
b = -2
Use m and b to make equation of line:
y = mx + b
y = 1/2x - 2
Possible answers:
a. 4x - 2y = 4
-2y = -4x + 4
y = 2x - 2
b. x - 2y = 4
-2y = -x + 4
y = 1/2x - 2
c. -2x + 4y = -4
4y = + 2x - 4
y = 1/2x - 1
Only choice b equals the equation of line above.
please help me with this.
Answer:
i think it is 130DE because you will use a protractor
Find the vertex and vertex form of
the following:
f(x) = x^2 - 8x+9
Answer:
(4,-7)
Step-by-step explanation:
Rewrite in vertex form and use this form to find the vertex ( h,k ) .
Anyone have an answer?
Answer:
39
Step-by-step explanation:
i need help on this q ^^^
I think your answer would be 64, if im wrong, im sorry! Hope this helps! :D
Given that ∠A≅∠B, Gavin conjectured that ∠A and ∠B are complementary angles.
Which statement is a counterexample to Gavin 's conjecture?
m∠A=10° and m∠B=15°
m∠A=45° and m∠B=45°
m∠A=30° and m∠B=60°
m∠A=25° and m∠B=25°
What evidence is there that a chemical reaction is taking place in the cold pack?
A)
change in odor
B)
change in color
0)
formation of gas
D)
temperature change
Find The Value Of X.
Answer:
x= 46°
Step-by-step explanation:
Please see the attached picture for the full solution.
Brody invested $220 in an account paying an interest rate of 3.6% compounded
annually. Assuming no deposits or withdrawals are made, how much money, to the
nearest ten dollars, would be in the account after 17 years?
Answer:
400
Step-by-step explanation:
Delta
The amount after 17 years is $400
How to determine the amount after 17 years?The given parameters are:
Principal, P = $220Rate, r = 3.6%Time, t = 17 yearsThe interest rate is compounded annually;
So, the amount after t years is:
A = P *(1 + r)^t
This gives
A = 220 * (1 + 3.6%)^17
Evaluate
A = 401.36
To the nearest ten dollars, we have:
A = 400
Hence, the amount after 17 years is $400
Read more about compound interest at:
https://brainly.com/question/24924853
Is 2x+5=10 an example of an expression? Why or why not? If not, what would you call it instead?
Answer:
No; equation
Step-by-step explanation:
2x+5 = 10 is not an expression rather it's an equation because it has an equal sign. An expression is a number, a variable, or a combination of numbers and variables and operation symbols. An equation is made up of two expressions connected by an equal sign.
Step-by-step explanation:
mnnchddhxgijzdzjdzfjdzurizfzifzirzzfizdi
A bag of snack mix weighs 12 ounces. A serving size is 3/4
ounce. Each serving has 120 calories.
Answer:
16 servings and 1920 calories in 1 snack bag
Step-by-step explanation:
12 ounces divided by 3/4 = 16 servings
120 calories/servings x 16 servings = 1920 calories in 1 snack bag
Plz help fast I’ll mark Brainiest. Don’t answer just for points.
Sum of interior angles in quadlateral (trapezoid) is 360 degrees.
[tex]5y+2+8y+73+2y=360[/tex].
Simplify by collecting y terms and subtracting 73 on the other side.
[tex]15y+75=360\implies y=285/15=\boxed{19}[/tex].
Hope this helps.
Please help. I dont know how to do this
Answer:
y=3x+3
Step-by-step explanation:
3 is the slope, up 3 and right 1
3 is the y intercept
(√5+√17i)(√5-√17i)=? (give answer in standard a+bi form)
Answer:
22
Step-by-step explanation:
Given
([tex]\sqrt{5}[/tex] + [tex]\sqrt{17}[/tex] i )([tex]\sqrt{5}[/tex] - [tex]\sqrt{17}[/tex] i ) ← expand factors using FOIL
= ([tex]\sqrt{5}[/tex] )² - ([tex]\sqrt{17}[/tex] )² i² ← i² = - 1
= 5 - 17(- 1)
= 5 + 17
= 22
what is 5 to the 3 power time 8.9 divided by 2.5
Answer:
1,780
Step-by-step explanation:
5 to the 3 power= 500
500 x 8.9= 4450
4450 divided by 2.5= 1780
Answer:
450
Step-by-step explanation:
First, make it into an equation, then solve using the order of operations
Hope this helps :-)
Linda has a part-time job at the school. She makes between 44.00 and $51.00 a dayWhich is a reasonable estimate of the amount of money that Linda makes for working 6 days?
Answer:
$285
Step-by-step explanation:
The mode of 44 and 51 is 47.50 and 47.50 x 6 equals 285
and what is the correct expression? help please
1
What is the length of a
segment when the
coordinates of its endpoints
are (-4, 5) and (-6, 9)?
a) 5V2 units
b) 2V5 units
c) V2 units
d) 5
e) 10 units
V5 units
What is the missing statement for step 5?
m2 SQV = m_SQT
Om SQV + m2VQT = 180°
Om SQV + m2SQT = m_VQT
m
Answer:
m∠SQV + m∠VQT = 180°
Step-by-step explanation:
right on test.
Kyla alternates between walking and jogging on an 11-mile trail. Her walking speed is 4 mi/h, and her jogging speed is 6 mi/h. Kyla takes 2 hours to go from the beginning to the end of the trail. Write and solve an equation to find the distance Kyla walked and the distance she jogged.
Answer:
Kyla walked 2 miles and jogged 9 miles
Step-by-step explanation:
Let the distance Kyla walked be x
and the distance Kyla jogged be y
Since the trail is 11-mile long, then
x + y = 11
Now, from the question,
Her walking speed is 4 mi/h and her jogging speed is 6 mi/h
Let the time spent to walk be t₁ and the time spent to jog be t₂
From
Distance = Speed × Time
Then, the distance walked x is
x = 4 mi/h × t₁
and the distance jogged y is
y = 6 mi/h × t₂
From the question, Kyla takes 2 hours to go from the beginning to the end of the trail, that is
t₁ + t₂ = 2 hours
∴t₁ = 2 - t₂
Since
x + y = 11, then we can write that
(4 mi/h × t₁) + (6 mi/h × t₂) = 11
But t₁ = 2 - t₂
Then,
(4 mi/h × t₁) + (6 mi/h × t₂) = 11; becomes
(4 mi/h × (2 - t₂)) + (6 mi/h × t₂) = 11
8 - 4t₂ + 6t₂ = 11
2t₂ = 11 - 8
2t₂ = 3
t₂ = 3/2
t₂ = 1.5 hours
This is the time spent to jog
Then, from t₁ = 2 - t₂
t₁ = 2 - 1.5
t₁ = 0.5 hour
This is the time spent to walk
Now, For the distance Kyla walked, x
x = 4 mi/h × t₁
x = 4 mi/h × 0.5
x = 2 miles
Hence, she walked 2 miles
and for the distance Kyla jogged, y
y = 6 mi/h × t₂
y = 6 mi/h × 1.5
y = 9 miles
Hence, she jogged 9 miles