Answer: 4.2*w + 7*x + 5.4
Step-by-step explanation:
Here we need to remember how the product of different signs works, here is the rule:
(+)*(+) = (+)
(+)*(-) = (-)
(-)*(+) = (-)
(-)*(-) = (+)
Now we want to distribute the negative sign in the equation:
"-(-4.2w-7x-5.4)"
We can write this as:
-(-4.2w-7x-5.4) = (-1)*(-4.2w-7x-5.4)
Now we can distribute the "-1"
Then we get:
(-1)*(-4.2w) + (-1)*(-7x) + (-1)*(-5.4)
We have 3 cases where we need to use the "(-)*(-) = (+)" rule, then we get:
(-1)*(-4.2w) + (-1)*(-7x) + (-1)*(-5.4) = 4.2*w + 7*x + 5.4
How many solutions does this system have?
3
y = x-5
-3x+4y=-20
Answer:
x=0 and y=-5
Step-by-step explanation:
hope this helps!
High-definition televisions have an aspect ratio of 16: 9. The following answer choices are television screen sizes rounded to the nearest inch. Which could be a High-definition television?
Answer:
18.5 in approx
Step-by-step explanation:
Given data
aspect ratio of 16: 9
L= 16in
W= 9 in
We want to find the diagonal of the TV
applying Pythagoras theorem
d^2= l^2+w^2
d^2= 16^2+ 9^2
d^2=256+81
d^2= 337
d= √337
d= 18.35 in
Hence the tv is 18.5 in approx
Can you divide any number by zero?
Answer:
well basically no so i say no
Step-by-step explanation:
you can but you wouldn't get a answer because you would only get the same answer so..
Answer:
When we try to divide by zero, things stop making sense
Step-by-step explanation:
You rent an apartment that costs $800 per month during the first year, but the rent is set to go up $170 per year. What would be the monthly rent during the 8th year of living in the apartment?
The monthly rent during the 8th year of living in the apartment will be $2160.
What is the linear system?A linear system is one in which the parameter in the equation has a degree of one. It might have one, two, or even more variables.
You rent an apartment that costs $800 per month during the first year, but the rent is set to go up by $170 per year.
Then the monthly rent during the 8th year of living in the apartment will be
Let y be the monthly rent and x be the number of years.
Then we have
y = 170x + 800
The rent after 8 years, then the rent will be
y = 170 × 8 + 800
y = 1360 + 800
y = $ 2160
Thus. the monthly rent during the 8th year of living in the apartment will be $ 2160.
More about the linear system link is given below.
https://brainly.com/question/20379472
#SPJ1
question. 2. 8 is what percent of 5?
Answer:
56
Step-by-step explanation:
Solution for 2.8 is what percent of 5:
2.8:5*100 =
(2.8*100):5 =
280:5 = 56
Answer: 160%
Step-by-step explanation:
The recipe uses 1/2 cup of sugar for 1 cup of flour...how much flour should there be if there is 2 cups of sugar? *
Answer:
4 cups
Step-by-step explanation:
2 divided by 1/2 is 4 so there are 4 half cups of sugar.
Since the sugar is multiplied by 4 you have to multiply the flour by 4.
1*4=4
Help please? :) I need some help !!!!!!!!!
Answer:
i gotchu step sis u need help with them laundry's
Step-by-step explanation:
Answer:
Answer:
answer is 8
Step-by-step explanation:
put the equations equal to each other
then simplify
it is bcz of a angle type of parallel lines
corresponding angle
Step-by-step explanation:
The equation d = 3t represents the relationship between the distance in inches that a snail is from a certain rock and the time in minutes
Answer:
so would it be 3x 3 times pepepeppopo checkk
Help me plzzzz I’m literally failing
Answer:
10.5.....................
Answer:
6
Step-by-step explanation:
trapezoid HJGF is 2.5 times more that trapizoid CBAD, so divide the 15 by 2.5 and get 6.
Help plz I will give brainliest that’s what they say right
Answer: A
Step-by-step explanation:
(f+g)x
4x - 9 + 12x +7
4x +12x - 9 +7
16x - 2
answer - (f+g)x = 16x -2
I need help asap!!! Please explain and I will give brainliest!!
Answer:
DF ≅ AC
Step-by-step explanation:
To prove that the triangles are congruent by AAS, we need a side from each triangle to be congruent to the other, correspondingly. So, if AC ≅ DF, we could prove the triangle's congruency by AAS. In the answer choices, the only answer that works is DF ≅ AC.
20 divided by c write an algebraic expression for the word expression
Step-by-step explanation:
The algebraic expression is
20
----
c
or
20/c
A square has side length represented by X +4 inches write an expression to represent the area. Express your answer as a trinomial.
Answer:
[tex]A=(x^2+16+8x)\ \text{inches}^2[/tex]
Step-by-step explanation:
Given that,
The side length of a square, l = (x+4) inches
We need to find an expression to represent the area of the square.
The area of a square is given by :
[tex]A=\text{side}^2[/tex]
So,
[tex]A=(x+4)^2\\\\A=(x^2+16+8x)\ \text{inches}^2[/tex]
So, the area of the square is [tex](x^2+16+8x)\ \text{inches}^2[/tex].
8.
Look at this figure.
It has one triangle and one rectangle. True or false?
True
False
Checkin
skip
Answer:
true
Step-by-step explanation:
the triangle is on top of the rectangle
Answer:
ture because it has one of each
Step-by-step explanation:
so like that
Mary has 20 biscuits in a tin there are 11 plain biscuits 7chocolate biscuits 2 currant biscuits sue takes at random 2 biscuits from the tin work out the probability that the 2 biscuits were not the same type?
I need help pls step by step i will really appreciate pls also l will mark you the brainly if you did !
Answer:
1. 2
2.3[tex]\sqrt{5}[/tex]
3.8[tex]\sqrt{6}[/tex]
4.2.5[tex]\sqrt{10}[/tex]
Step-by-step explanation:
Remember that [tex]\frac{\sqrt{a}}{\sqrt{b}}[/tex]=[tex]\sqrt{\frac{a}{b} }[/tex], and [tex]\frac{a}{\sqrt{b}}[/tex]=[tex]\frac{a}{\sqrt{b}}[/tex]*[tex]\frac{\sqrt{b}}{\sqrt{b}}[/tex]=[tex]\frac{a\sqrt{b}}{b}[/tex]
1. [tex]\frac{\sqrt{48}}{\sqrt{12} }[/tex]= [tex]\sqrt{\frac{48}{12} }[/tex]=[tex]\sqrt{4}[/tex]=2
2. [tex]\frac{15}{\sqrt{5} }[/tex]=[tex]\frac{15}{\sqrt{5} }[/tex]*[tex]\frac{\sqrt{5}}{\sqrt{5} }[/tex]=[tex]\frac{15\sqrt{5} }{5}}[/tex]=3[tex]\sqrt{5}[/tex]
3. [tex]\frac{48}{\sqrt{6}}[/tex]= [tex]\frac{48}{\sqrt{6}}[/tex]* [tex]\frac{\sqrt{6}}{\sqrt{6}}[/tex]= [tex]\frac{48\sqrt{6}}{6}[/tex]=8[tex]\sqrt{6}[/tex]
4. [tex]\frac{25}{\sqrt{10}}[/tex]=[tex]\frac{25}{\sqrt{10}}[/tex]*[tex]\frac{\sqrt{10}}{\sqrt{10}}[/tex]=[tex]\frac{25\sqrt{10}}{10}[/tex]=2.5[tex]\sqrt{10}[/tex]
please help me
!!!!!!!!!!!!!
Answer:
Hey y = 16
sorry can't find x and z
please I am struggling really bad help me
HELP!PLS ANSWER THIS BY TODAY AND TMR
Write a story to represent 15 divided by 19 solve the equation in a complete story
Next when your done what multiplication equation shows that your division is correct
Pls answer this I will give a brainly to the best!
what is the answer to this question
Answer:
it would be c. 5 1/4
Step-by-step explanation:
help please i need the answer asap
Answer:
Option 2
Step-by-step explanation:
Answer:
Graph 2
Step-by-step explanation:
exponential growth means that the line is increasing
Arrange the values in order from least to greatest.
34%
.23
18/25
Answer:
.23, 34%, 18/25
Step-by-step explanation:
34% = 0.34 (2)
.23 = 0.23 (1)
18/25 = 0.72 (3)
Can someone help me with this please
I’ll mark as brainliest
PLEASE HELP U GUYS THIS IS CONFUSINGGG
Work out m and c for the line:
y = 2x
for the parallelogram find the value of x,y,and z
Answer:
X = 119, Y = 61, Z = 119
Step-by-step explanation:
These are supplementary angles and equal 180.
180 - 61 = 119
Opposite angles are congruent
5 is not more than x
Answer:
well we don't don't know...because x is unknown
Answer:
There no problem but 5<=x in equation form
Step-by-step explanation:
That way because x can either be five or higher
Determine the average rate of change from x = 0 to x = 4
Answer:
I'm super bad at math sowy!!!
Step-by-step explanation:
\(T T)/
1.Find Each of the following angle measures. Round your answer to the nearest degree. Show your work in the space below
Please help meeeeee
Answer:
a. m<DAB = 36°
b. m<B = 54°
c. m<C = 74°
Step-by-step explanation:
a. m<DAB = m<CAB + m<CAD
m<DAB = 20° + 16° (substitution)
m<DAB = 36°
b. m<B = 180° - (90° + m<DAB)
m<B = 180° - (90° + 36°) (substitution)
m<B = 54°
c. m<C = 180° - (90° + m<CAD)
m<C = 180° - (90° + 16°) (substitution)
m<C = 74°
An item has an original price of $45, it is discounted 25%. What is the new price?
25% off $45 is $33.75