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dimulka [17.4K]
2 years ago
15

How many solutions does the following equation have? 7(y+3)=5y+8 A No solutions B Exactly one solution C Infinitely many solutio

ns
Mathematics
2 answers:
pickupchik [31]2 years ago
8 0

Answer:

Answer is B

Step-by-step explanation:

7y+21=5y+8

2y=-13

y= -6.5

iragen [17]2 years ago
3 0

Answer:

C

Step-by-step explanation:

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What is equivalent to -23-(26)=x
ANTONII [103]
I’m not sure if this is what your looking for but x = -49
4 0
2 years ago
A box contains 10 balls, of which 3 are red, 2 are yellow, and 5 are blue. Five balls are randomly selected with replacement. Ca
VLD [36.1K]

Answer:

The required probability is 0.1.

Step-by-step explanation:

red balls = 3

yellow balls =  2

blue balls = 5

Selected balls = 5

Number of elemnets in sample space = 10 C 5 = 1260

Ways to choose 1 red ball and 4 other colours =  (3 C 1 ) x (7 C 4) = 105

Ways to choose 5 balls of other colours = 7 C 5 = 21

So, the probability is

\frac{105}{1260} + \frac {21}{1260}\\\\\frac{126}{1260}=0.1  

8 0
3 years ago
How many solutions does the system of equations have?
SIZIF [17.4K]
The answer is d) none because substituting -1/4x + 5/3 for y in the first equation gives 3x - 3x + 5/3 = 20 so 5/3 = 20 which is not true. 
8 0
3 years ago
which of the following answer choices describes all the transformation found in the cubic function f(x)=-(x+2)3-5
Alona [7]
The cubic function is f(x) = x^3

You need to perform three transformations to the cubic function to obtain
f(x) = - (x + 2)^3 - 5.

Those transfformations are:

1) Shift f(x) = x^3,  2 units leftward to obtain f(x) = (x + 2)^3

2) reflect f(x) = (x + 2)^3 across the x-axis to obtain f(x) = - (x + 2)^3

3) shift f(x) = - ( x + 2) ^3, 5 units downward to obtain f(x) = - (x + 2)^3 - 5
8 0
3 years ago
Using what you know about angles and triangles, what is the measure of angle 6?
zvonat [6]
∠4 = 90  (verticallyopposite)
∠2 = 68 (verticallyopposite)

∠6 = ∠2 + ∠4 (exterior angles = sum of opposite angles)

∠6 = 68 + 90 = 158°

Answer: 158°
7 0
2 years ago
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