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3 years ago

Expand (2x+5)give answer plz

Mathematics

1 answer:

emmasim [6.3K]3 years ago

7 0

Answer:

2(x+5)

not sure but this is what I got

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Solve for X X= ? (Round to the nearest hundredth)

Nataly_w [17]

Answer:

Step-by-step explanation:

bc 21 is the ultamate number for kool kids

4 0

3 years ago

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The surface area of the right rectangular prism with dimensions shown is 160 cm2 the figure is not to scale. what is the height

ivanzaharov [21]

80 centimeteeerrrssss

6 0

3 years ago

M is directly proportional to r^3

Oliga [24]

Answer:

r=6

Step-by-step explanation:

Proportions

We know M is directly proportional to $r^3$

This can be written as

$M=kr^3$

Where k is the constant of proportionality which will be determined knowing that when r = 4, M= 160. Substituting in the equation above:

$160=k\cdot 4^3$

$160=k\cdot 64$

Solving for k:

$k=\frac{160}{64}=2.5$

The equation is:

$M=2.5\cdot r^3$

Now find r when M=540:

$540=2.5\cdot r^3$

Dividing by 2.5:

$216=r^3$

Taking cube roots:

$r=\sqrt[3]{216}$

r=6

3 0

3 years ago

Pleaseee help please!!! Picture is above :(

ololo11 [35]

Answer:

The correct option is D) 11.4

Step-by-step explanation:

Given points are A(5,7) and B(-2,-2)

The distance between two points is given by

L= $\sqrt{(X2-X1)^{2}+{(Y2-Y1)^{2}}$

To find the distance between A(5,7) and B(-2,-2)

L= $\sqrt{(X2-X1)^{2}+{(Y2-Y1)^{2}}$

L= $\sqrt{((-2)-5)^{2}+{((-2)-7)^{2}}$

L= $\sqrt{(-7)^{2}+{(-9)^{2}}$

L= $\sqrt{49+81}$

L=11.4

Thus,

The correct option is D) 11.4

8 0

4 years ago

What is the area of the semicircle in square feet (use 3.14 for π.) helpp due in 21 minutes

Elden [556K]

Answer:

14.13

Step-by-step explanation:

use the radius, 3 squared

so 3 x 3 = 9

9 x 3.14 = 28.26

28.26 / 2 ( because it is a semicircle) = 14.13

7 0

3 years ago

Expand (2x+5)give answer plz​

Expand (2x+5)give answer plz