Answer:
Substitute the value of the variable into the equation and simplify.
22
Step-by-step explanation:
Hope this helps! Have a good day! Can you please give me brainliest?
Help me with this question pls
When a number is decreased by -8 and the result is -20. What is the number? THANKS you for your help
Answer:
-12
Step-by-step explanation:
To decrease by -8 is to subtract, therefore x-8= -20. When you add 8 on both sides, the answer is -12.
What is the domain of this function?
(8,8)
(2, 19)
(0,9)
(-12, 19)
Answer:
The domain is -12, 0, 2, 8.
Step-by-step explanation:
The domain is the set of all possible x-values. The x-values are the first numbers in a point.
If the area of a triangle is 36 in.^2in.
2
and the base is 9 in., what is the height of the triangle?
A
72 in.
B
4 in.
C
8 in.
D
18 in.
Please help me if you get it
Answer:
4 sqrt 2
Step-by-step explanation:
Answer:
4 sqrt(2)
Step-by-step explanation:
This is a special triangle 45, 45, 90 therefore you just multiply the sides by sqrt(2) to find the hypotenuse so it will be 4 sqrt(2)
Another way to do it is by Pythagorean triangle which will still lead to 4 sqrt(2)
ABCD is a parallelogram. If side AB = 5x + 7, side BC = 8x - 12, and side CD = 7x - 9, find the value of x.
Answer:
8cm
Step-by-step explanation:
AB = CD
5x+7 = 7x-9
2x = 16
Find the missing terms 14.5_,_,18.4
What is the Slope of the line given the Linear Equation y=3x -1
Answer:
The slope is 3.
Step-by-step explanation:
In the line y=3x-1, the slope would be 3.
Graph the function. Then, identify the domain and range of the function.
f (x) = (x + 3)^1/2+ 1
Answer:x=5
Step-by-step explanation:
Answer:
Below.
Step-by-step explanation:
The graph will begin at the point (-3, -1) and will curve to the right, passing through the y axis at (0, (1 +√3)). It will slowly rise to the right.
Domain is [-3, ∞).
Range is [1, ∞).
PLEASE HELP!!!
I NEED THIS ASAP
Answer:
d. 132
Step-by-step explanation:
12 + 8 x 15
do 8 x 15 first because PEMDAS
12 + 120
132
A man sold a fan for Rs. 400. Find the cost price if he incurred a loss of 15%.
Answer:
Cost price of the fan is [tex]\text {Rs. 470.59}[/tex].
Step-by-step explanation:
Given: A man sold a fan for [tex]\text{Rs.}\:400[/tex]. He incurred a loss of [tex]15\%[/tex].
To find: The cost price of the fan
Solution:
We have,
Selling price, S.P., of the fan [tex]= \text{Rs.} 400[/tex]
Loss [tex]=15\%[/tex]
We know that [tex]\text {Loss\%}=\frac{\text{C.P.-S.P.}}{\text{C.P.}}\times100\%[/tex]
Now let the C.P. of the fan be [tex]\text{Rs.} \:x[/tex]
So, [tex]15=(\frac{x-400}{x})\times 100[/tex]
[tex]\implies 15x=100x-40000[/tex]
[tex]\implies 100x-15x=40000[/tex]
[tex]\implies 85x=40000[/tex]
[tex]\implies x=\frac{40000}{85}[/tex]
[tex]\implies x= 470.59[/tex]
Hence, the cost price of the fan is [tex]\text {Rs. 470.59}[/tex].
plz help asap i will give you brainlist
how do I find the area
Answer:
105cm2
Step-by-step explanation:
area= area f rectangle + area of trapezium
= (6x9)+( [tex]\frac{6+11}{2}[/tex]x6)
= 54+51
= 105 cm2
ANSWER ASAP PLS!!!!!
What value(s) of x will make x2 = 81 true?
A.3
B. 9 and −9
C. 40.5 and −40.5
D. 9
3. Find2/7-3/7 - 5/14
Answer:
-1/2 ignore this widjsnwnsisiahwndmd
Given that
P
=
x
−
y
.
Find
P
when:
x
=
−
12
and
y
=
−
19
Answer:
P=7
Step-by-step explanation:
P=x-y
=-12-(-19)
=-12+19
=7
Giving brainliest!!!!!!!!
Answer:
I'm not sure but I think it is A.
The number of Ava's coins is x. The number of Ava's coins is more than 15. so x is more than 15.
x > 15
Answer:
A
Step-by-step explanation:
Since Ava has more than X coins in her collection then 15 is the amount she used to have so
x> 15
canden buys 3.9 pounds of grapes that cost 1.80 per pound . Which expression can be used to find the total cost of the grapes
Answer:
3.9 x $1.80
Step-by-step explanation:
3.9 x $1.80
5. x2 +5x-4
Discriminate
Answer:
D = 41
Step-by-step explanation:
y = ax² + bx + c
The discriminant D = b² - 4ac tells the types of roots the equation has.
If D < 0 , then quadratic equation has no real roots, has two imaginary roots.
If D = 0 , then quadratic equation has one real root.
If D > 0 , then quadratic equation has two distinct real roots.
~~~~~~~~~~~~
x² + 5x - 4
a = 1, b = 5, c = - 4
D = 5² - 4(1)(- 4) = 25 + 16 = 41
help plz and have a good day
Rachel has 2/3 pound of snack mix. She eats 5/12 of the snack mix. How much of the snack mix did Rachel eat?
Answer: Racheal ate [tex]\dfrac{5}{18}[/tex] of the snack mix.
Step-by-step explanation:
Given : Rachel has [tex]\dfrac23[/tex] pound of snack mix..
If she ate [tex]\dfrac5{12}[/tex] of the snack mix.
Then, Quantity of snack mix eaten by Rachel = [tex]\dfrac5{12}\times\dfrac23[/tex]
[tex]=\dfrac56\times\dfrac13\\\\=\dfrac{5}{18}[/tex]
Hence, Racheal ate [tex]\dfrac{5}{18}[/tex] of the snack mix.
The figure below depicts a triangle formed by the labeled
vertices. If each vertex point of the triangle is multiplied
by what would be the area of the resulting triangle?
(Triangles, Book 2)
(3, 3)
0.0)
09
0 13.5
0 15
18
O 27
9514 1404 393
Answer:
(b) 13.5
Step-by-step explanation:
The upper vertex would be ...
3/2(3, 3) = (4.5, 4.5)
and the right vertex would be ...
3/2(4, 0) = (6, 0).
The base of the larger triangle would be 6, and its height would be 4.5. Then the area is ...
A = (1/2)bh
A = (1/2)(6)(4.5) = 13.5 . . . area of dilated triangle
Determine whether the representation is proportional. y = -9x
Answer:
Yes, they are
Step-by-step explanation:
y = -9x
Here y∝ x
Where -9 is constant of proportionality
If "y" increases by factor of 2, then "x" will also increases by factor of 2. Hence, y and x are " directly proportional" to each other.
PLEASE HELP!!! MATH WHIZZESSSS NEEDED!!! IT IS IN THE PITURE!!!
Answer
B. 3, 915, 700, 000
Step-by-step explanation:
You are correct.
3.9157E + 9 means that there are 9 digits after the decimal point.
An airplane descends 1.5 miles to an elevation of 6.05.Find the elevation of the plane befor its descent the intial elevation of the plane was blank miles
Answer:
7.55 miles
Step-by-step explanation:
Given that :
Distance of descent = 1.5 miles
New elevation point after descent = 6.05 miles
The initial elevation of the plane before descent will be :
New elevation point after descent + Distance of descent
(6.05 miles + 1.5 miles)
= 7.55 miles
Help I’m bad at math and need to get my grade up
Robin baked 702 cookies.He sold them in boxes of 18. After selling all of the boxes of cookies for the same amount each, he earned $136.50.what was the cost of one box of cookies
Answer:
cost of a box is $3.5
Step-by-step explanation:
given data
sold box = 18
earned = $136.50
solution
we consider here number of boxes of cookies is x
and
for we get Tyler sold cookies box so number of boxes we divide 702 cookies among 18 is
Tyler sold = [tex]\frac{702}{18}[/tex]
Tyler sold = 39 boxes
and
now we consider here y as cost of each box of cookies,
so for cost or sale price of the cookie boxes here we divided 136.50 dollars among 39 boxes
so
cost of each box = [tex]\frac{136.5}{39}[/tex]
cost of each box = 3.5
Thus, the cost of each box was 3.5
There is a new student in class and you have been asked to teach them everything you know about coordinate planes. **Write at least 3-5 complete sentences explaining coordinate planes.** Remember to include vocabulary, how to remember which coordinate goes first in an ordered pair, and how to plot points on the grid.There is a new student in class and you have been asked to teach them everything you know about coordinate planes. **Write at least 3-5 complete sentences explaining coordinate planes.** Remember to include vocabulary, how to remember which coordinate goes first in an ordered pair, and how to plot points on the grid.There is a new student in class and you have been asked to teach them everything you know about coordinate planes. **Write at least 3-5 complete sentences explaining coordinate planes.** Remember to include vocabulary, how to remember which coordinate goes first in an ordered pair, and how to plot points on the grid.
PLZZZZZZ HELP ME
Step-by-step explanation:
The coordinate plane is a two-dimension surface formed by two number lines. One number line is horizontal and is called the x-axis. The other number line is vertical number line and is called the y-axis. The two axes meet at a point called the origin. We can use the coordinate plane to graph points, lines
Write 5√4 using rational exponents.
Answer:
A. [tex] {5}^{ \frac{1}{4} } [/tex]
Step-by-step explanation:
[tex] \huge \sqrt[4]{5} = {5}^{ \frac{1}{4} } [/tex]
Clara found the product of 3 – 6y2 and y2 + 2. Her work is shown below.
(3 – 6y2)(y2 + 2) = 3(y2) + (–6y2)(2)
= 3y2 – 12y2
= –9y2
Is the student’s work correct?
Answer: No the students work is not correct. Because you are using distribution. Which means that 3 has to multiply the y2 and 2 not just the y2! And after you distribute it you need to simplify!
Step-by-step explanation:
Answer:
(3 – 6y²)(y² + 2) = - 6y⁴ - 9y² + 6
Step-by-step explanation:
Given the expression
3-6y² and y²+2
We have to find the product of 3-6y² and y²+2
Clara's Solution:
(3 – 6y²)(y² + 2) = 3(y²) + (–6y²)(2)
= 3y² – 12y²
= -9y²
NO!
The student's work is INCORRECT!
Clara did not imply the correct distribution of multiplying the terms in the first step.
Here is the correct solution:
(3 – 6y²)(y² + 2) = 3(y²) + (–6y²)(2) + (3)(2) + (–6y²)(y²)
= 3y² – 12y² + 6 - 6y⁴
= - 6y⁴ - 9y² + 6
Therefore,
(3 – 6y²)(y² + 2) = - 6y⁴ - 9y² + 6