Answer:
See answer below
Step-by-step explanation:
In this case, this is just sum, substraction and divisions using the properties or the signus. This is just basic operations using the negative and positive numbers.
To do this easily you just have to remember the following:
1. Numbers with same sign, must be summed and put the sign that have either number.
2. Numbers with different sign, must be substracted and then put the sign of the highest number.
3. If you have a multiplication or division:
- Same signs multiplied or dividied (Either positive or negative), result always positive.
- Different signs multiplied or dividied (positive and negative), result always negative.
Following this simple rules, you'll be able to solve almost any exercise of this.
Now, according to the rules above, let's solve the exercises:
A. (-13) + (-7)
In this case, you have two negative numbers, and one positive sign between them. Apply the 3rd rule. The negative sign remains and then:
-13 - 7
Now 1st rule applied, sum the numbers and let the same sign:
-13 - 7 = -20.
B. (-15) - (-15) = 0.
Applying 3rd rule and then 2nd rule, we have a subtration of -15 + 15.
C. (2) * (-13) = -26
Applying the 3rd rule, we have positive and negative, result always negative.
D. (-44) / 11 = -4
3rd rule applied.
E. (-3) + (-5) + 8 + 25 = 31
Applied 3rd and 1st rule.
I don't understand the f, but you can use the rules here and get the final answer of that one.
Hope this helps
i need help please with this
Answer:
BC
Step-by-step explanation:
b) Work out 4 =
5
Give your answer as a mixed number in its simplest form.
Answer:
Step-by-step
explain your question more please.
hii please help! :) i’ll give brainliest
Answer:
125
Step-by-step explanation:
hope this helps :) have a nice day !!
165 Divided by 1,000
Answer:
0.165
Step-by-step explanation:
Answer:
0.165
Step-by-step explanation:
Help me with this please ...
Answer:
3n-2
Step-by-step explanation:
i just got done doing that test lol
Please help! image is below
Explanation = brainliest
Answer:
x=67.5ft
Step-by-step explanation:
similarity and congruence
the length of one side of the bigger triangle divided by the length of the similar side of the smaller triangle
equate the unknown ratio with a known ratio
71.5/49.5=97.5/x
x=(97.5 x 49.5)/71.5
x=67.5 ft
PLEASE HELPPPP EASY 10 POINTS
Answer:
y=x+5
Step-by-step explanation:
Answer:
Step-by-step explanation:
Will give random brainliest if 10 users comment or answer and put #brainliest
Answer:
#brainliest
Step-by-step explanation:
tghfue7hbjdj I o
Answer:
HEY
#brainliest
Step-by-step explanation:
Which equation could be used to find the measure of one acute angle in the right triangle shown below?
B
12
7.
оа
12
sin -
Ob
tan A=
Ос
cos A-
1/2
Od
tan A - 17/22
Answer:b
Step-by-step explanation:
Answer:7/12
Step-by-step explanation:
tanA = opposite/adjacent = 7/12
Students from Oak Middle School and Lake Middle School are holding a car wash to raise money for charity. The expression 70 +60 represents the amount Oak Middle School raises. The
expression By + 30 represents the amount Lake Middle School raises. Which expression shows the total amount the two schools raise?
15x90
Soxy90
O 7x+By90
15190
The expression that shows the total amount the two schools raise is 7x + 8y + 90.
What is an expression?It should be noted that an expression is simply used to show the relationship between the variables that are used.
From the information, the expression 7x +60 represents the amount Oak Middle School raises and the expression 8y + 30 represents the amount Lake Middle School raises.
Therefore, the total amount will be:
= 7x + 60 + 8y + 30
= 7x + 8y + 90
The total amount is 7x + 8y + 90.
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What will be the perimeter and the area of the rectangle below if it is enlarged using a scale factor of 6.5? (5 points)
A rectangle is shown. The length of the rectangle is labeled as 8 cm, and the width is labeled as 6 cm.
Perimeter = 54 cm, area = 181.25 cm2
Perimeter = 54 cm, area = 2,028 cm2
Perimeter = 182 cm, area = 2,028 cm2
Perimeter = 182 cm, area = 181.25 cm2
Answer:
Perimeter = 182 cm, area = 2,028 cm2
Step-by-step explanation:
original perimeter=2*(8+6)+28 cm
original area=8*6= 48 cm²
You would have to do the old length and width times the scale factor
Multiply both of the width's
8 * 6.5 = 52 cm
scale factor: 6 * 6.5 = 39 cm
To get perimeter = 2(length + width)
2(52+39)=182 cm.
So you would have to do length(52 cm) * width(39 cm)
To get 2028 cm^2
the third one
Step-by-step explanation:
Because I’m right
Maya has 54 cubic feet in her garden she already has 4.5 cublc feet of soil .Soil bags have 1.5 how many bags should maya purchace.
Answer: 33
Step-by-step explanation:
The cubic feet needed is 54 and she already has 4.5 cubic feet of soil. This mean that she will need 49.5 more.
= 54 - 4.5
= 49.5
Since each soil bag has 1.5, the number of soil bags needed will be:
= 49.5 / 1.5.
= 33
Therefore, she'll need 33 bags
A cube has a surface area of 150
cm squared. Find the side length of the cube in cm.
Answer:
Step-by-step explanation:
6 faces have an area of 150 cm^2
1 face has an area of 150/6 = 25 cm^2
The formula for the area of one face of a cube = s^2 which is the length of a side squared.
s^2 = 25
sqrt(s^2) = sqrt(25)
s = 5
22 miles in 20 minutes 38 miles in 30 minutes
Answer:
22 miles in 20 minute, would be 1.4 miles per minute
While 38 miles in 30 minutes would be 1.266.. miles per minute
Step-by-step explanation:
I have no idea what the question may be
Answer: I think its 38 miles in 30 minutes
Factor the trinomial below.Thanks
Answer:
A. (3x+2)(3x+2)
Step-by-step explanation:
(3x+2)(3x+2)= 9x^2+12x+4
Need help ASAP!!!plz
Answer:
The answer is D
Step-by-step explanation:
One box of nails weighs 3.4 pounds and another box weighs 5.2 pounds. How much more does the heavier box weigh?
Answer:
1.8 pounds
Step-by-step explanation:
Jim invests $1240 at a 3.6 interest rate in an account that is compounded quarterly. What is the value of the account after 6 years
Answer:
$1507.84
Step-by-step explanation:
First, converting R percent to r a decimal
r = R/100 = 3.6%/100 = 0.036 per year,
then, solving our equation
I = 1240 × 0.036 × 6 = 267.84
I = $ 267.84
The simple interest accumulated
on a principal of $ 1,240.00
at a rate of 3.6% per year
for 6 years is $ 267.84.
Select all the expressions that are equivalent to 24x + 12.
2(12x + 6)
–6(–4x – 2)
–3(8x – 4)
12(1 + 2x)
–4(–6 – 3x)
Answer:
2(12x + 6)
-6(-4x - 2)
12(1 + 2x)
The expressions that are equivalent to 24x + 12 are:
2(12x + 6)
-6(-4x - 2)
12(1 + 2x)
Let's go through each expression and simplify them to determine if they are equivalent to 24x + 12.
2(12x + 6):
We can use the distributive property to simplify this expression:
2 * 12x + 2 * 6 = 24x + 12
This expression is equivalent to 24x + 12.
–6(–4x – 2):
Again, using the distributive property, we simplify:
–6 * –4x + –6 * –2 = 24x + 12
This expression is equivalent to 24x + 12.
–3(8x – 4):
Once again, applying the distributive property:
–3 * 8x + –3 * –4 = –24x + 12
This expression is not equivalent to 24x + 12.
12(1 + 2x):
Using the distributive property:
12 * 1 + 12 * 2x = 12 + 24x = 24x + 12
This expression is equivalent to 24x + 12.
–4(–6 – 3x):
Applying the distributive property:
–4 * –6 + –4 * –3x = 24 + 12x = 12x + 24
This expression is not equivalent to 24x + 12.
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3pts 7.) Clare is cycling at a speed of 12 miles per hour. If she starts at a position chosen as zero, what will her position be after 45 minutes?
9514 1404 393
Answer:
9 miles
Step-by-step explanation:
Of course, 45 min = 45/60 hours = 3/4 hours.
__
The relationship between time, speed, and distance is ...
distance = speed · time
distance = (12 mi/h) · (3/4 h) = 9 mi
Her position will be 9 miles from 0 after 3/4 hour.
Please help I needed it badly
Answer:
The answer is C trust me I did this
18. Complete the table below.
PLZ HELP ME A
Answer:
6/10 | 60% | 0.60
¾ | 75% | .75
23/100 | 23% | .23
⅛ | 12.5% | .125
9/50 | 18% | .18
⅔ | 67% | .67
10.
A plane that carries mail makes a round trip each day from Chicago to New York. It makes 1 intermediate stop on the way to New York and 1 intermediate stop on the way back to Chicago. Suppose you make a graph of the altitude of the plane for one day, with time on the horizontal axis and altitude on the vertical axis. How many times will the graph touch the horizontal axis?
A. 5
B. 4
C. 7
D. 2
Answer:
C. 7
Step-by-step explanation:
The graph that is drawn here shows the altitude as a function of time. When the plane takes off from Chicago, the graph will start from the horizontal axis.
Next, when the plane takes 3 intermediate stops, altitude will touch the horizontal axis 3 times.
Next, when the plane lands in New York the altitude will touch the horizontal axis.
Next, when plane takes off from New York and takes an intermediate stop, altitude will touch horizontal axis.
Lastly the altitude will touch the axis when plane lands back in Chicago.
So, cumulatively the altitude will touch the horizontal axis seven times.
How many buses do you need for 600 people if each bus holds 65 people?
Answer:
You would need 10 buses
Step-by-step explanation:
To find the amount of buses needed, you just divide the total amount of people, and the capacity of each bus.
600/65
This would get you 9.23076923077, but obviously you can't have .23076923077 of a bus and you can't leave people behind. This means you would have to round the number up to 10
Answer:
10
Step-by-step explanation:
how would you factor 12b^4+3b^2
Answer:
3b²(4b²+1)
Step-by-step explanation:
You can factor out a 3b²
3b²(4b²+1)
Answer:
Hey friend, need some help if you factor 3b^2 out of 12b^4+3b^2, in other words, 3b^2 (4b^2 + 1)
Show your work:
3b^2 (3b^2 / 12b^4) + (3b^2 / 3b^2)
PLZ give 5 stars, heart, and brainlyest
How can you get 24 by using 1, 1/2, 3 and 6 (one each) with simple mathematical operations?
Answer:
(3+1)X 6
Step-by-step explanation:
that means 4x6
answer this! i’ll give brainliest
Answer:
-0.6, -1/4, 0.3, 1/2
Step-by-step explanation:
Give me brainliest.
Answer:
-0.6, -1/4, 0.3, 1/2
Step-by-step explanation:
Need help, you know the deal lol
Answer:
É correto afirmar: *
1 ponto
a) O tempo profano é o tempo cronológico, pois não está associado ao sagrado, ao religioso. Trata-se do tempo que é medido por meio de vários instrumentos.
b) O tempo profano é o tempo mítico, primordial, o tempo da origem das coisas.
c) O tempo não tem relação com o sagrado. O sagrado somente tem relação com o espaço.
d) Para as religiões não há diferenças entre tempo sagrado e tempo profano.
2. Sobre temporalidade sagrada é correto afirmar: *
1 ponto
a) As festas sagradas não estão ligadas à temporalidade sagrada, afinal têm somente como objetivo o entretenimento dos fiéis.
b) A cronologia Budista inicia-se a partir da saída do profeta Muhammad da cidade de Meca.
c) O calendário cristão gregoriano inicia a contagem dos dias a partir da ressurreição de Jesus Cristo.
d) Rituais e Festas Sagradas são importantes para que as pessoas rememorem e revivam os acontecimentos sagrados, atualizando, desse modo, sua fé, sua devoção e seu comprometimento com a religião.
Outro:b
Plz help i will give the first person with the correct answer branliest (show work)
What is the solution to the linear system show above?
Answer:
Step-by-step explanation:
The solution is the point where the lines intersect, (0,-5)