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3 years ago

What is the value of the expression?

Mathematics

2 answers:

julia-pushkina [17]3 years ago

6 0

$0.2(34−2)+0.5 = 6.9$

Degger [83]3 years ago

5 0

Answer:

It is 0.25

Step-by-step explanation:

Took the quiz

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Find the value of x and the perimeter of the following shapes:

ratelena [41]

Answer:

x=2, perimeter=14

Step-by-step explanation:

Finding x

(x+1)(x+2)

x^2+2x+x+2=12

x^2+3x-10

x^2-2x+5x-10

x(x-2)5(x-2)

(x+5)(x-2)

x=-5

x=2

Length or Width should be a positve number.

x=2

Perimeter:

3+3+4+4=14

5 0

3 years ago

Find the perimeter of the figure. Show all work (formulas, plugged in values, math calculations) for full credit. PLEASE HELP DO

Aleksandr-060686 [28]

Answer:

Step-by-step explanation:

Semicircle:

diameter = length of the rectangle = 25 cm

Half circumference = πd/2

= 3.14 * 25/2 = 39.25 cm

Perimeter of the figure = 39.25 + 20 + 25 + 20

= 104.25 cm

4 0

3 years ago

Read 2 more answers

What is the surface area of a cylinder in 9in,7in, and 5in ?

lapo4ka [179]

50 I can’t even explain

4 0

3 years ago

Pls solve this question

just olya [345]

Answer:

${( \sqrt{ {x}^{ - 3} }) }^{5} = ({( {x}^{ - 3}) }^{ \frac{1}{2} } ) ^{5} \\ \\ = {x}^{ - 3 \times \frac{1}{2} \times 5} = {x}^{ - \frac{15}{2} } = \frac{1}{ {x}^{ \frac{15}{2} } }$

<em><u>Or ;</u></em>

${( \sqrt{ {x}^{ - 3} } )}^{5} = {( \sqrt{ \frac{1}{ {x}^{3} }} })^{5} = ( { \frac{ \sqrt{1} }{ \sqrt{ {x}^{3} } } })^{5} \\ \\ = ( { \frac{1}{ \sqrt{x} \sqrt{ {x}^{2} } } })^{5} = ({ \frac{1}{ x\sqrt{x} }})^{5} \\ \\ = ( \frac{ {(1)}^{5} }{ {x}^{5} ( \sqrt{x} )^{5} } ) = \frac{1}{ {x}^{5} \times {x}^{ \frac{1}{2} \times 5 } } \\ \\ = \frac{1}{ {x}^{5} \times {x}^{ \frac{5}{2} } } = \frac{1}{ {x}^{5} \sqrt{ {x}^{5} } } \\ \\ = \frac{1}{ {x}^{5} \sqrt{ {x}^{4} {x}^{1} } } = \frac{1}{ {x}^{5} \sqrt{x} \sqrt{( { {x}^{2} })^{2} } } \\ \\ = \frac{1}{ {x}^{5} {x}^{2} \sqrt{x} } = \frac{1}{ {x}^{7} \sqrt{x} } = \frac{ \sqrt{x} }{ {x}^{8} }$

3 0

2 years ago

The probability that Brock scores a penalty kick is 3/10. If he shoots 50 penalty kicks, how many "goals" can Brock expect to ma

Tema [17]

Answer:

15/50

Step-by-step explanation:

1'st step : Multiply the numerator and the denominator by 5 so that the denominator could get the number 50

3x5/10x5= 15/50

therefore, Brock could score 15/50 penalty kicks because 15/50 is equivalent to 3/10

4 0

3 years ago