Answer:
a= -40
Step-by-step explanation:
Answer:
a = - 40
Step-by-step explanation:
a+40=0
First way:
Transpose 40 to the other side (to isolate a) - when transposing signs change ( from positive to negative)
Second way:
Subtract both side what 40 (to cancel 40 and isolate a)
* you have to always isolate variables
40 percent in to fraction decmal
Answer:
0.4 hope this helps
Step-by-step explanation:
Answer:
Well 40 percent is 2/5 as a fraction and 2/5 as a decimal is 0.4
Step-by-step explanation:
A lamp pole with a height of 10 ft casts a shadow of 3 ft. What is the height of a building that casts a shadow of 15 ft at the same time?
Answer: it should be 20ft
Step-by-step explanation:
HELP ME!!
1. What is a variable?
2. Solve the following equations:
3x + 6 - X + 82 = 44
Show your work for the equations.
A variable is a letter that represents another number or thing.
Steps to solve:
3x + 6 - x + 82 = 44
~Combine like terms
2x + 88 = 44
~Subtract 88 to both sides
2x = -44
~Divide 2 to both sides
x = -22
Best of Luck!
Mum bought a litre of orange juice. She filled 5 glasses and had 1/5 of a litre left. How much was in each glass?
The area of the surface of the largest known star is about 1015 square miles. The area of the surface of the Earth is about 1011 square miles. How many times larger is the star's area?
Answer:
The surface area of the star is approximately 1.004 times larger than the earth's surface area
Step-by-step explanation:
To find the number of times b which the area of the star is larger than that of the earth, we will divide the area of the area of the star by the area of the earth.
Area of surface of star = 1015 square miles
Area of surface of the earth = 1011 square miles
∴ (Area of star) ÷ (Area of the earth)
= 1015 ÷ 1011 = 1.00395 times
Therefore the surface area of the star is approximately 1.004 times larger than the earth's surface area
what is 8+8-2X5-1+22 ????
Answer:
27
Step-by-step explanation:
8+8+(-2x5)-1+22
8+8+(-10)-1+22
16+22-11
27
What’s the right anwser?
the 3rd option
-8(x+13)=2(x-7)+4x
-8x - 104 = 2x - 14 + 4x
-8x - 104 = 2x + 4x - 14
-8x - 104 = 6x - 14
which point is the midpoint of AE
Point D is the midpoint of points A and E for the given number line.
What is a number line?A number line is a straight line containing numbers arranged at equal segments or periods throughout its duration.
A horizontal number line is the most common representation and can be extended infinitely in any direction.
Given the number lines with labeled points as A, B, C, D, and E.
The midpoint of AE is the mean of AE
Mean of AE ;
(A + E )/ 2 = (- 6 + 8) / 2
2 / 2 = 1 which is point D
Therefore "D" will be the midpoint of A and E.
Hence "Point D is the midpoint of points A and E for the given number line".
To learn more about the number line,
https://brainly.com/question/13189025
#SPJ2
Choose all of the expressions that are equal to −9. the opposite of nine −|9| |−9| −|−9| −(−9) the distance from zero to nine
Answer:
−|9| = -9
−|−9| = -9
Step-by-step explanation:
−|9| = -9
|−9| = 9
−|−9| = -9
−(−9) = 9
Which ordered pair is on the inverse of f(x)?
Answer: (-1,-2)
Step-by-step explanation: I just did it
Three copies of this rectangle were connected along a side to make a larger rectangle. What could the perimeter of the new rectangle be? Consider all possibilities.
Answer:
388in or 202in
Step-by-step explanation:
I decided to connect three copies of this rectangle, all along the right side of the rectangle in the picture above.
When this is done the new length along the bottom and top become 45×4=180.
Now to find the perimeter, 180+180+14+14=388in
Other possibility
Connect the three copies along the top.
Now we need to do 14×4=56, which is the new side length.
Now to find the perimeter, 56+56+45+45=202in
Pam bought a stereo for $700 and made 36 payments of $26.32. How much
did she pay in interest?
Best answer gets brainliest
Answer:
$247.52
Step-by-step explanation:
36 x 26.32 = 947.52
947.52 - 700= 247.52
select the statement that is false.
•variables represent unknown values.
• variables are placeholders in math expressions and equations.
• mathematical operations can be performed on variables.
• variables cannot be represented by the letter t.
Answer:
number 3 is incorrect the rest are correct
A __ is as polynomial with two terms.
Answer:
Bionominal
Step-by-step explanation:
Question:
A ____ is a polynominal with two terms.
Answer:
A Bionominal is a polynominal with two terms.
Bionominal is your answer.
Hope this helps!
I need the percentage of the shaded area.
Answer:
1.22
Step-by-step explanation:
Since there is one whole shaded. And 2 tens, and 2 ones. Its 1.22.
How would I solve this problem?
Answer:
(x+1)²=-1
Step-by-step explanation:
x²-7x=-9x-2
x²+2x+2=0
If you solved this using the quadratic formula, you’d end up with -1+i and -1-i.
but if you subtracted 1 from both sides, you’d have
x²+2x+1=-1
Which is:
(x+1)²=-1
Given f(x) = -4(6x - 5) + 60, what is the value of f(4)?
Answer:
[tex]f=-6x+20[/tex]
Step-by-step explanation:
Just solve f(4) = -4(6x - 5) + 60
plzz help me i need it ill mark you as brlanlest
Answer:
I believe that the answer is c or -9
Step-by-step explanation:
The quotient of 1/3 and 4/3
Answer:
1/ 4
Step-by-step explanation:
The question can also be written as [tex]\frac{1}{3} /\frac{4}{3}[/tex] .
Because it's division of fractions, you can multiply to find the answer by making 4/3 into 3/4. So
1/ 3 times 3/4 = 3/12 = 1/4
Answer:
if you're trying to find the quotient then the answer is: 4/9
if you're trying to add then the answer is: 5/3
if you're trying to divide then the answer is: 4/9
if you're trying to multiply then the answer is: 4/9
if you're trying to simplify then the answer is: 4/9
Step-by-step explanation:
Help me please!!!!!!!!
Answer:
The first part/question sounds like a Division problem because theirs 18 guests and each slice feeds 6 people. Therefore, Laura orders 3 boxes of Pizzas. But make sure you try Photomath,V3, or Khan Academy apps before you write down the answer to the first question.
find the width, height, and area of a 50 inch TV with a 16:9 aspect ratio
Answer:
50
Step-by-step explanation:
I need help please !!!!!
the cost of a yard string at eleven cents per inch
Answer:$1.32
Step-by-step explanation:
Name all rays ,point and line segment
Answer:
ratious and axuas
Step-by-step explanation:
Answer:
S & Q are points
R is a ray
SR & RQ are line segments
Step-by-step explanation:
3[-X + (2 x + 1)] = x - 1
X=?
Answer: -2
Step-by-step explanation: 2x/2 = -4/2
simplify 4+3(7+4 x 2)-100
Solve this
what is the answer to this equation -3-6x =9
Answer: la respuesta es -57
Step-by-step explanation:
Answer:
-57 and sorry if wrong
Step-by-step explanation:
Complete the description of the piecewise function graphed below. Use interval notation to indicate intervals.
Answer:
{ -2 if x ∈ -4 < x < -3
{ -5 if x ∈ -3 ≤ x < 2
[ 5 if x ∈ 2 ≤ x < 5
Step-by-step explanation:
From the graph, we have;
{ -2 if x ∈ -4 < x < -3
For the next inequality line at y = -5, we have;
1) The inequality line, starts with an open circle on the left at x = -3, which is equivalent to less than or equal to symbol, ≤ as -3 ≤ x because the point x =-3 is the left boundary. The inequality line extends to the point x = 2, where we have a closed circle (on the right), which is equivalent to a x ≤ 2 with the 2 on the right hand side because, the 2 is the right boundary of the inequality
2) The inequality can be summarized as starting from x = -3 extends to x = 2
3) As stated in point 1) the point x = 3, we have -3 ≤ x and at point x = 2, we have x ≤ 3 which can be combined as -3 ≤ x < 2, to give;
{ -5 if x ∈ -3 ≤ x < 2
For the next inequality line at y = 5, we have;
1) The inequality line, starts with an open circle on the left at x = 2, which is equivalent to less than or equal to symbol, ≤ as 2 ≤ x because the point x =2 is the left boundary. The inequality line extends to the right to reach point x = 5, where we have a closed circle (on the right), which is equivalent to a x ≤ 5 inequality, with the 5 on the right hand side because, the 5 is the right boundary of the inequality
2) The inequality can be summarized as starting from x = 2 extends to x = 5
3) As stated in point 1) the point x = 2, we have 2 ≤ x and at point x = 5, we have x ≤ 5 which can be combined as 2 ≤ x < 5, to give;
[ 5 if x ∈ 2 ≤ x < 5.
Answer:
1st box = [-4, -3]
2nd box = (-3, 2]
3rd box = (2, 5]
For f(x) = -2 we see that x is between -4 to -3 with closed endpoints.
So the interval will be [-4, -3].
For f(x) = -5 we see that x is between -3 to 2 with closed endpoint at 2 and open endpoints at -3.
So the interval will be (-3, 2].
For f(x) = 5 we see that x is between 2 to 5 with open endpoint at 2 and closed endpoint at 5.
So the interval will be (2, 5].
Learn more: https://brainly.com/question/16236436
Elisa swim laps in the pool. When she first started, she completed 10 laps in 25 minutes. Now she can finish 12 laps in 24 mins. By how many minutes has she improved her lap time?
Answer:
I think one minute
Step-by-step explanation:
she can now complete 2 laps in one minute
Can someone help me please
Step-by-step explanation:
kindly see attached picture
hope it helped you:)
Answer:
[tex]\sf \dfrac{{x}^{a \: (b - c)} }{ {x}^{b \: (a - c)} } \: \div \: \bigg \lgroup \dfrac{ {x}^{b} }{ {x}^{a} } \bigg \rgroup^{c} \: = \: 1[/tex]
[tex]\\[/tex]
Now,
[tex]\sf \dfrac{{x}^{ab \: - \: ac} }{ {x}^{ba \: - \: b c} } \: \div \: \bigg \lgroup \dfrac{ ({x}^{b} )}{( {x}^{a}) } \bigg \rgroup^{c} \: = \: 1[/tex]
[tex]\\[/tex]
[tex]\sf \dfrac{{x}^{ab \: - \: ac} }{ {x}^{ba \: - \: b c} } \: \div \: \dfrac{ {x}^{bc} }{{x}^{ac} } \: = \: 1[/tex]
[tex]\\[/tex]
We know that, When sign change from division to multiplication we should do reciprocal of next number.
Therefore we get,
[tex]\sf \dfrac{{x}^{ab \: - \: ac} }{ {x}^{ba \: - \: b c} } \: \times \: \dfrac{ {x}^{ac} }{{x}^{bc} } \: = \: 1[/tex]
[tex]\\[/tex]
[tex]\sf \dfrac{{x}^{ab \: - \: \cancel {ac }\: + \: \cancel{ac}} }{ {x}^{ba \: - \: \cancel{ b c} \: + \: \cancel{bc}} } \: = \: 1[/tex]
[tex]\\[/tex]
[tex]\sf \dfrac{{x} \: ^{ \cancel{ab}} }{ {x} \: ^{\cancel{ba}} } \: = \: 1[/tex]
[tex]\\[/tex]
[tex] \bigstar \: \: \underline{ \boxed{\sf x \: = \: 1}} \: \: \bigstar[/tex]
[tex]\\[/tex]
[tex] \huge\bf \dag \: \gray{RHS = LHS} \: \dag[/tex]
[tex]\\[/tex]
[tex]\large \star \: \tt Hence, Verified \: \star[/tex]