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VMariaS [17]
3 years ago
9

Solve the equation for y. Type out your steps to solve this problem as you are showing your work:

Mathematics
2 answers:
Nadya [2.5K]3 years ago
8 0

Answer:

-13/2

Step-by-step explanation:

7(y+3)=5y+8

7y+21=5y+8

7y-5y+21=8

2y+21=8

2y=8-21

2y=-13

y=-13/2

posledela3 years ago
4 0

Answer:

y = -6.5

Step-by-step explanation:

simplify: 7y+21=5y+8

put like-terms together and simplify: 2y=-13

(like-terms: 7y-5y=8-21)

divide both sides by 2: y=-6.5

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Match the ordered pairs so that the relation defined by the set of ordered pairs does not represent a function.
prisoha [69]
From what I understand about the problem, I think you have to match them so that the x values are the same.  For two coordinate points to be on the same function, every x has to have its own y.  Since we're trying to <em>not </em>make a function, we should deliberately match the x values.

(2,3) (2,2)
(-5,2) (-5,1)
(6,-5) (6,5)
(-1,0) (-1,6)

I'm not sure where the (0,3) belongs.
5 0
4 years ago
An expression is shown. 4.8 x 2 + 3.2, what is the value of the expression?
madreJ [45]
Answer is 23
Explanation is that 4.8 equals 11.5 in trigenomes, so 11.5 times 2 is 23. Happy to help :)
3 0
3 years ago
Read 2 more answers
Pythagorean
nata0808 [166]

Answer:

5√3 ft

Step-by-step explanation:

If the ladder is 10ft tall, then that represents the hypotenuse. If the foot of our ladder is 5ft away from the wall, that is a side length that we know. Using the Pythagorean Theorem, a²+b²=c², where a and b are side lengths of a right triangle, and c is the hypotenuse, we can solve for the missing side length:

a²+b²=c²

(5)²+b²=(10)²

25+b²=100

b²=75

b=√75

b=5√3

So the ladder will reach a height of 5√3 ft.

7 0
3 years ago
In a 30°-60°-90° triangle, the length of the hypotenuse is 30. Find the length of the longer leg.
Assoli18 [71]
<span>In a 30-60-90  triangle the side opposite the 30 degree angle is half the length of the hypotenuse. 
The shorter leg is </span>the side opposite the 30 degree angle, therefore
the shorter leg = 30/2 = 15

<span>By the Pythagorean theorem
</span><span>the longer leg = </span>√(30² - 15²) = √(900-225) = √675 = 15√3 ≈ 25.98 units
6 0
4 years ago
PLEASE HELP !! I'LL GIVE YOU BRAINLIEST !!
Marizza181 [45]
Sorry but, there’s nothing attached so I can not help you.
3 0
3 years ago
Read 2 more answers
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