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3 years ago

10+10+10+10-10-10-10-10-10-10-10-10-10-10-9

Mathematics

2 answers:

anastassius [24]3 years ago

7 0

Answer:

Step-by-step explanation:

ki77a [65]3 years ago

4 0

Answer:

-69

Step-by-step explanation:

40-100-9

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Write two numbers that multiply to the value on top and add to the<br> value on bottom.

Airida [17]

I think the answer is 2 and -15. Because 2 times - 15 is -30 and 2 and -15 can be added to -1.

4 0

3 years ago

I will give brainliest, if it is right, and you are the first person to answer.

sertanlavr [38]

Answer:47.25

Step-by-step explanation: it is 10.5 x the 4.5

7 0

3 years ago

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What's the reciprocal of 5/18 please help :/

Alex_Xolod [135]

Answer:

Reciprocal of 5/18 is 18/5.

5/18 x 18/5 = 90/90

= 1

8 0

3 years ago

Read 2 more answers

1. Divide 6x^4 + 2x^3 – 6x^2 – 14x – 1 by 3x + 1 by using synthetic division or long division. Show all

iris [78.8K]

      2x^3 - 2x - 4

3x + 1 6x^4 + 2x^3 - 6x^2 - 14x - 1
      6x^4 + 2x^3

       -6x^2 - 14x - 1
   -6x^2 - 2x

   -12x - 1
   -12x - 4

   3

3x + 1 is not a factor of the dividend because, dividing the dividend with 3x + 1 gives a remainder.

5 0

4 years ago

A ball is thrown directly up in the air from a height of 5 feet with an initial velocity of 60 ft/s. Ignoring air resistance, ho

Mice21 [21]

Answer:

3.8 seconds

Step-by-step explanation:

Given equation

$h= -16t^2 + 60t + 5$

When the ball hits the ground then height is 0

So we replace h with 0 and solve for t

$0= -16t^2 + 60t + 5$

a= -16 , b= 60 and c= 5

Apply quadratic formula to solve for t

$t=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

= $\frac{-60+\sqrt{60^2-4\left(-16\right)\cdot \:5}}{2\left(-16\right)}[/tex[tex]=\frac{-60+-\sqrt{3920}}{-32}$

$=\frac{-60+-28\sqrt{5}}{-32}$

$=\frac{4(-15+-7\sqrt{5})}{-32}$

$=\frac{(-15+-7\sqrt{5})}{-8}$

Now make two fractions and solve for x

t= $-\frac{7\sqrt{5}-15}{8}$ =-0.0815

t= $\frac{7\sqrt{5}+15}{8}$ =3.83

So answer is 3.8 seconds

4 0

3 years ago