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3 years ago

Solve.10.8 - (-6.4) ×3

Mathematics

2 answers:

Artist 52 [7]3 years ago

4 0

Answer:

51.6

Step-by-step explanation:

10.8 - -6.4 is 17.2

17.2 x 3 is 51.6

gayaneshka [121]3 years ago

4 0

Answer:

Step-by-step explanation:

PEMDAS

Multiply -6.4 × 3 = -19.2

New equation: 10.8 - (-19.2)

the subtraction symbols cancel each other to addition

new equation: 10.8 + 19.2 = 30

the picture is from M A T H W A Y for reassurance

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3x + 1

VMariaS [17]

Answer:

The length of XY is 32

Step-by-step explanation:

Notice that you have a bisector segment (that divides the segment XY into two equal parts.

since these parts are equal, they must satisfy:

3 x + 1 = 8 x - 24

so, let's solve for x, grouping terms with x on the right of the equal sign, and numerical terms on the left:

1 + 24 = 8 x - 3 x

25 = 5 x

then x = 25/5 = 5

then,now you can find the length of XY as the addition of both parts:

3 x + 1 + 8 x - 24 = 3 (5) +1 + 8 (5) - 24 = 16 + 16 = 32

3 0

3 years ago

Learning the basics 6.23 suppose you select one value from a uniform distribution with a=0and b=10.what is the probability that

IgorC [24]

The area under the graph of the continuous uniform distribution is 1.
a. The probability that the value will be between 5 and 7 is the area between 5 and 7.
$P(5 \ \textless \ x \ \textless \ 7) = \frac{2}{10} = \frac{1}{5}$
b. The probability that the value will be between 2 and 3 is the are between 2 and 3.
$P(2 \ \textless \ x \ \textless \ 3)=\frac{1}{10}$
c. The mean is given by:
$\mu=\frac{a+b}{2}=\frac{0+10}{2}=5$
d. The variance is given by:
$\sigma^2}=\frac{1}{12}(b-a)^{2}=\frac{1}{12}(10)^{2}=8.3333$
The standard deviation is:
$\sqrt{\sigma} = \sqrt{8.3333} =2.887$

5 0

3 years ago

Find an equation of the line with the given slope that passes through the given point Write the equation in the form Ax + By = C

guajiro [1.7K]

Answer:

$8x + y = - 52$

Step-by-step explanation:

m= -8

p (-6,-4)

Formula for equation of a logbook passing through to points:

$y - y1 = m(x - x1)$
where y1= -4 and x1= -6
$y - ( - 4) = - 8(x - ( - 6)) \\ y + 4 = - 8(x + 6) \\ y + 4 = - 8x - 48 \\ 8x + y = - 52$

8 0

2 years ago

Solve for a 6(a+3)=18+6a

Dominik [7]

Expand

(6a + 18 = 18 + 6a)

Cancel 6a on both sides

(18 = 18)

Since both sides are equal, there are infinitely many solutions.

4 0

3 years ago

What happens to the volume of a sphere when its radius is doubled?

Alik [6]

Vsphere=(4/3)pir^3

when we replace r with 2r

newvsphere=(4/3)pi(2r)^3
newvsphere=(4/3)pi8r^3
newvsphere=8((4/3)pir^3)
newvsphere=8(vsphere)
it's volume is multipliied by 8

that is choice C, because 2^3=8, it's vollume is 8 times original voluem

answer is C

5 0

3 years ago

Solve.10.8 - (-6.4) ×3​

Solve.10.8 - (-6.4) ×3