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3 years ago

I need help- I’ll give brainlist if it’s right

Mathematics

2 answers:

Sav [38]3 years ago

5 0

Answer:

D. x > 4

Step-by-step explanation:

You have to do the opposite operations to get the variable on one side of the equation by itself.

4 - x + 4 = 8 - 4

x = 4

You only switch the comparison sign if you mutliply or divide by negative numbers when you do opposite operations to get the variable on one side of the equation by itself.

I hope this helps!

likoan [24]3 years ago

3 0

Answer:

D. x>[4]

Plzzzzz give me Brainliest!!!!!

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The length of a rectangle is shown below:

bazaltina [42]

Answer:

C(3, -3), D( -2, -3)

Step-by-step explanation:

The coordinates of A and B are:

A( -2, 3) and B(3, 3)

The distance AB is:

AB = 3 - (- 2) = 5 units

The rectangle wit the area of 30 units² should have the other dimension:

AC = BD = 30/5 = 6 units

Since D and C are below of the A and B, their coordinates will be same on x-axis but different on y-axis:

D = (-2, 3 - 6 = - 3) = (- 2, - 3)
C = (3, 3 - 6 = - 3) = (3, - 3)

Correct choice is B

3 0

3 years ago

Which is the inverse of the function f(x)=1/3x+5

jolli1 [7]

Answer:

f-¹(x) =(1-5x) /3x.

Step-by-step explanation:

f(x)=1/(3x+5)

Let y=1/(3x+5)

Exchanging x and y,

x=1/(3y+5)

3y+1=1/x

3y=1/x-5

3y=(1-5x) /x

y=(1-5x)/3x

f-¹(x) =(1-5x) /3x.

5 0

3 years ago

Read 2 more answers

Select the expressions that are equivalent to 7(7w).

Jet001 [13]

Answer:

answers are A and C

Step-by-step explanation:

they both will equal 49w

Please Brainliest will be much appreciated

3 0

3 years ago

Alessandro currently has $2,400 in his savings account. He saves $250 per month. Bea currently has $1,750 in her account. She sa

Flauer [41]

Bea has $550 more money than Alessandro after 12 months.
Explanation:
So let start with writing the equation for Alessandro money. So we know that the current amount in his/her bank account has $2,400 and she saves $250 per month. So the equation that best fit these terms is:
y
=
250
x
+
2
,
400
Bea has $1,750 in his/her bank account and saves $350 per month. So the equation that best fit these terms is:
y
=
350
x
+
1
,
750
So for x for both of these equations is 12. So let plug the number in
Alessandro:
y
=
250
(
12
)
+
2
,
400

y
=
3000
+
2400

y
=
$
5400
after 12 months
Bea:
y
=
350
(
12
)
+
1750

y
=
4200
+
1750

y
=
$
5950
after 12 months
So subtracting $5950 and 5400 gives us a $550

hope this helps :p

7 0

3 years ago

How do you solve the questions Plzzzzz I really need help

bixtya [17]

Answer:

The answers are given in step-by-step explanation

Step-by-step explanation:

In question 4,

Elina walked 12 miles then she walked 0.25 that distance.

We have to find the distance she walked

Distance=12+0.25 of that distance

= 12+0.25(12)