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3 years ago

Helps please this is due soon

Mathematics

1 answer:

Alinara [238K]3 years ago

4 0

4 not sure how to explain tho

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A cyclist rides 14 miles in 47 minutes.<br><br>What is the speed of the cyclist in miles per hour

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Step-by-step explanation:

20miles per hour HAVE A GOOD DAY

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3 years ago

Which of the following are solutions to the equation below?

scoundrel [369]

Answer:

The correct options for the solution values are:

$x=2\sqrt{2}-5$

$x=-2\sqrt{2}-5$

Step-by-step explanation:

Given the expression

$x^2+10x+25=8$

Subtract 25 from both sides

$x^2+10x+25-25=8-25$

Simplify

$x^2+10x=-17$

Add 25 or 5² to both sides

$x^2+10x+5^2=8$

$x^2+10x+5^2=\left(x+5\right)^2$

so the expression becomes

$\left(x+5\right)^2=8$

$\mathrm{For\:}f^2\left(x\right)=a\mathrm{\:the\:solutions\:are\:}f\left(x\right)=\sqrt{a},\:-\sqrt{a}$

solve

$x+5=\sqrt{8}$

Subtract 5 from both sides

$x+5-5=2\sqrt{2}-5$

$x=2\sqrt{2}-5$

solve

$x+5=-\sqrt{8}$

Subtract 5 from both sides

$x+5-5=-2\sqrt{2}-5$

$x=-2\sqrt{2}-5$

Therefore, the solution to the equation

$x=2\sqrt{2}-5,\:x=-2\sqrt{2}-5$

Hence, the correct options for the solution values are:

$x=2\sqrt{2}-5$

$x=-2\sqrt{2}-5$

6 0

3 years ago

The LCM of two numbers is 48. The number one in the ratio 2:3. Then Sum of the numbers is:

Oksi-84 [34.3K]

Answer:

Step-by-step explanation:

Let the numbers be 2x and 3x

Then their L.C.M. = 6x

BUT also their LCM=48

6x=48

x=48/6

x=8

So,

First number=2x=2x8=16

Second number=3x=3x8=24

The numbers are 16 and 24.

Hence required sum =(16+24)=40

So none of the options are correct

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3 years ago

Blitzkrieg is the term used to describe Germany's?

Andreyy89

“lightning” warfare with tanks used to end a fight swiftly.

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4 years ago

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Help please with these two !!!! pleaseeeee

Sladkaya [172]

Answer:

1- Opposite

2- Adjacent

Step-by-step explanation:

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