3 years ago

What do I do and how do I do it ???

Mathematics

1 answer:

Nataly_w [17]3 years ago

4 0

Answer:

Step-by-step explanation:

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The square of a number decreased by ten times the number is negative nine.

Free_Kalibri [48]

Answer:

9 OR 1

Step-by-step explanation:

Let the number be x

x² - 10x = -9

x² - 10x + 9=0

a=1

b=-10

c=9

Solve using the quadratic formula

x =9 or 1

7 0

3 years ago

Read 2 more answers

What is 1/10 + 50/100?

erastovalidia [21]

Answer:

$\large\boxed{\dfrac{3}{5}=0.6}$

Step-by-step explanation:

$\bold{METHOD\ 1:}\\\\\dfrac{1}{10}+\dfrac{50}{100}=\dfrac{1}{10}+\dfrac{50\!\!\!\!\diagup}{100\!\!\!\!\diagup}=\dfrac{1}{10}+\dfrac{5}{10}=\dfrac{1+5}{10}=\dfrac{6}{10}=\dfrac{6:2}{10:2}=\dfrac{3}{5}\\\\\bold{METHOD\ 2:}\\\\\text{Convert the fractions to decimal:}\\\\\dfrac{1}{10}=0.1\\\\\dfrac{50}{100}=0.50=0.5\\\\\dfrac{1}{10}+\dfrac{50}{100}=0.1+0.5=0.6$

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4 years ago

Is 3/5 mile closer than 1/2 mile

Romashka [77]

Yes to both, and for future help, if you find a common denominator(the bottom one) by multiplication and one is higher, boom you have your answer.

6 0

4 years ago

the width of a rectangle is 3 less than twice the length, x. If the area of the rectangle is 43 square feet, which equation can

Mama L [17]

Answer:

x(2x-3)=43

Step-by-step explanation:

width: 2x-3

length: x

area=length*width

43=x(2x-3)

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3 years ago

mrs gannon is having her class make winter decorations using pine cones. If each decoration needs 11 pine cones and mrs gannon h

olya-2409 [2.1K]

11 • 18 = 198. Mrs. Gannon should need 198 pine cones

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3 years ago

What do I do and how do I do it ???​

What do I do and how do I do it ???