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3 years ago

First to answer gets brainliest

Mathematics

2 answers:

Grace [21]3 years ago

8 0

Answer: 14
Square both sides, getting you
2x-3=25
Add 3 to both sides
2x=28
Divide both sides by 2
x=14

Artyom0805 [142]3 years ago

5 0

To remove the square root get square on both sides.
Square root 2x-3^2=5^2
Remove the square root by cancelling the square and square root.
2x-3=25
2x=25+3
X=28/2
X=14

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Please someone answer for this question

Maslowich

First one is 5/3
Second one is: 5
Third one is: 15

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3 years ago

Read 2 more answers

Write the explicit rule for the arithmetic sequence

blagie [28]

Given that:
a1=27, an=(an-1)+4
the second term will be:
a2=a1+4
a2=27+4=31
The explicit formula for arithmetic sequence is given by:
an=a+(n-1)d
where:
a= first term
d=common difference
n=nth term
from the information given:
a=27
d=31-27=4
thus the explicit formula will be:
an=27+(n-1)4
an=27+4n-4
an=23+4n

Answer: an=23+4n

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3 years ago

3. At a bargain store, Jamal bought 2 items that each cost the same amount. Isaiah bought 3 items that each cost the same amount

coldgirl [10]

Answer:

$6.75 and $4.50

Step-by-step explanation:

a) Jamal spent:

Isaiah spent:

3 (x - 2.25)

The equation is:

2x = 3(x - 2.25)

b) Solving the equation

2x = 3x - 6.75
3x - 2x = 6.75
x = 6.75

c) Jamal's items cost

$6.75 each

Isaiah's items cost

$6.75 - $2.25 = $4.50 each

7 0

3 years ago

There are 6 green marbles, 11

algol13

Step-by-step explanation:

green: 6/4

red: 7/4

this is all i know

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3 years ago

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Basile [38]

Answer:

Step-by-step explanation:

You can't ever let this go negative. At least not at the grade you are in.

It can be 0.

So the domain must start at x = 7

sqrt(5*7 - 35) = sqrt(0) = 0

x can have any value (including 7) between 7 and infinity. If you choose a number less than 7 (like 6) the square root will go negative and that's not to be done.

So the interval is

7 ≤ x < ∞

4 0

3 years ago