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Vinil7 [7]
3 years ago
11

9 POINTS!!!

Mathematics
1 answer:
denpristay [2]3 years ago
6 0
14.49.

To get ST is the square root of the product of QT and RT, so the square root of
30 x 7 == the square root of 210.
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Point B is on line segment AC. Given AB = 3x, BC =4x+8 and AC = 5x + 10, determine the numerical length of AC
Vlada [557]

Answer:

15

Step-by-step explanation:

determine the numerical length of AC

We know that Ac is equaled to ab and bc because they are the segements between ac  

                3x                                4x+8

A-----------------------------B----------------------------------C

|<----------------------------5x+10 --------------------------->|

AB + BC = AC

solving for x

3x + 4X + 8 = 5X + 10

3x+4x-5x= 10-8

2x=2

x=1

Now sub that in for ac

AC= 5x +10

AC= 5(1) +10

AC= 5 +10

AC = 15

3 0
2 years ago
The variable y is directly proportional to the variable x. If y = 32 when x = 20, what is the value of x when y = 40?
elena55 [62]

Answer:

The Correct option is C ) 25

Therefore the value of x is 25 when y =40.

Step-by-step explanation:

Given:

Variable 'y' is directly proportional to the variable 'x'.

\therefore y=kx     ......Direct Variation

Where,

k = Constant of proportionality

To Find:

value of x = ? when y = 40

Solution:

First we need to find Constant of proportionality

When x = 20 and y = 32

Substituting the values we get

32=k\times 20\\k=\dfrac{32}{20}=1.6\\\\k=1.6

Now when k =1.6 , y = 40 then x will be

40=1.6\times x\\\\x=\dfrac{40}{1.6}=25\\\\x=25

Therefore the value of x is 25 when y =40.

6 0
3 years ago
Round 3160.9903 to the nearest tenths place
motikmotik
The tenths place is right after the decimal point. So, 3160.9903 can be 3160.9.
5 0
3 years ago
Read 2 more answers
Marcelino bought balloons to sell at lunches to raise money for charity
Arada [10]

Answer:

<u>Marcelino will have $7.50: his costs are more than his profits. </u>

Step-by-step explanation:

22.50 + 7.50 + 15.00

In total Marcelino spent $45 to make these balloons.

He wants to sell each balloon for $1.25.

If he sells the 30 balloons he bought for $1.25 he will make:

30 * 1.25 = $37.50... okay he made some money, BUT he spent $45 dollars for the items.

45 - 37.50 = $7.50, Marcelino made no profit... he still needs to make $7.50 to pay off his own costs.

4 0
3 years ago
Read 2 more answers
What is the tangent ratio of angle KJL?
ivann1987 [24]

Answer: (1)

Step-by-step explanation:

Using the properties of a 30 60 90 triangle, we get that ML=24sqrt3 and JM=24.

This means that the tangent is 24sqrt3 / 24.

7 0
2 years ago
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