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hram777 [196]
2 years ago
14

Help help help hemp grko

Mathematics
1 answer:
Yuliya22 [10]2 years ago
5 0

Answer:

12

Step-by-step explanation:

x-4=2(x+8)/5

let's do my favorite strategy: distributive property!

x-4=(2x+16)/5

Now we can simplify.

x-4=(2/5)x+16/5

Let's solve for x!

Subtract 2/5 from both sides

3/5)x=36/5

Now multiply both sides by 5/3, the reciprocal.

You would get 12 as x!

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A student says that the algebraic expression 5 x 7 can also be written as 5 7x. is the student correct? explain.
ohaa [14]
Nahhhh
So basically WHERE DID THE x COME FROM anyway ??? 
5 * 7 = 35
but
IT DOES NOT EQUAL TO
57x
It might be true depending on what the x value is, but you dont know what the x value is so ... 
8 0
3 years ago
What is the distance between (-2,2) and (2,-1) on coordinate plane
lawyer [7]

Answer:

d=\sqrt(x2-x1)^{2}  + (y2-y1)^{2}

Step-by-step explanation:

1- Identify the x and  the y

x1= -2

x2=2

y1= 2

y2= -1

2-

2- solve the equation:

d=\sqrt\(2-(-2))^{2}  + ((-1)-2)^{2}

d= \sqrt(4)^{2}        + (-3)^{2}

= \sqrt16        + 9

= \sqrt25

d=5 answer

6 0
3 years ago
If 3£A and 3€B, then which of the following statements is not true?
WITCHER [35]
The answer is C. 3 is an element of A n B
8 0
2 years ago
Circle O is shown. 2 tangents intersect at a point outside of the circle which is labeled Satellite. The angle formed is 20 degr
TiliK225 [7]

Answer:

The arc measure, x, that the satellite can see is 160°

Step-by-step explanation:

Given that the two tangents intersect at a point outside the with circle center O

The angle formed between between the two tangent = 20°

The first arc formed is measured as x°, which is the arc opposite the point where the two tangents meet = The arc the satellite can see

The angle x is given by the relationship;

x = 2 × (90 - v/2)

Where;

v = The angle formed at the point where the two tangent meet = 20°

Therefore;

x = 2 × (90 - 20/2) =  2 × (90 - 10) =  2 × 80  = 160°

The arc measure, x, that the satellite can see = 160°.

3 0
2 years ago
Read 2 more answers
A spherical balloon has a 34-in. diameter when it is fully inflated. Half of the air is let out of the balloon. Assume that the
jeka57 [31]

Answer:

a. 20,579.52 cubic inches

b.10,289.76  cubic inches.

c. 13.49 inches

Step-by-step explanation:

Hi, to answer this question we have to calculate the volume of a sphere:

Volume of a sphere: 4/3 π r³

Since diameter (d) = 2 radius (r)

Replacing with the value given:

34 =2r

34/2=r

r= 17 in

Back with the volume formula:

V = 4/3 π r³

V =4/3 π (17)³

V = 20,579.52 cubic inches

The volume of the half-inflated balloon is equal to the volume of the sphere divided by 2.

20,579.52/2 = 10,289.76  cubic inches.

To find the radius of the half-inflated balloon we have to apply again the volume formula and substitute v=10,289.76

10,289.76= 4/3 π r³

Solving for r

10,289.76/ (4/3 π)= r³

2,456.5 = r³

∛2,456.5 = r

r = 13.49 inches

7 0
3 years ago
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