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3 years ago

Estimate 137,638 to the nearest whole number

Mathematics

1 answer:

Tamiku [17]3 years ago

6 0

The answer would be 140,000 :)

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No. 27. Ignore the language. I'm indonesian n i'm trying to learn english using brainly usa

kakasveta [241]

((1+(sqrt)x+4+4)x1/3)etc?

6 0

2 years ago

BRAINLIEST, URGENT

stira [4]

Answer:

12.5 m

Step-by-step explanation:

1st drop 50 m

2nd drop 50/2 = 25 m

3rd drop 25/2 = 12.5 m

4 0

2 years ago

Use elimination method to solve 5x+y=-10 7x-3y=-36

k0ka [10]

$5x+y=-10\\ \\ 7x-3y=-36$

Let's multiply the first equation by 3. (As you can see y's coefficient in the first one is 1 and in the second one is -3 , we will multiply the first equation by 3 so when we add the equations their sum will be 0)

$3\cdot (5x+y)=3\cdot -10\\ \\ 15x+3y=-30$

Now let's add this new equation and our second equation.

$7x-3y=-36\\ \\ 15x+3y=-30\\ \\ (15x+3y)+(7x-3y)=(-30)+(-36)\\ \\ 15x+7x+3y-3y=-30-36\\ \\ 22x=-66\\ \\ x=\frac { -66 }{ 22 } \\ \\ x=-3$

We found x=-3

Now let's plug x's value in one of the equations to find y's value.

$x=-3\\ \\ 5x+y=-10\\ \\ 5\cdot -3+y=-10\\ \\ -15+y=-10\\ \\ y=-10+15\\ \\ y=5$

So we found y=5

Solution ;

(-3, 5)

7 0

3 years ago

Question explains itself in the picture.

borishaifa [10]

Answer:

30 cm

Step-by-step explanation:

Area of a triangle formula:

A = 0.5bh

Given:

b = 12

c = 5

Work:

A = 0.5bh

A = 0.5(12)(5)

A = 6(5)

A = 30

4 0

2 years ago

Write the quadratic equation whose roots are 4 and 5, and whose leading coefficient is 4.

Umnica [9.8K]

Answer:

Answer: 4x² - 9x + 20 

Step-by-step explanation:

• General quadratic equation:

${ \rm{ {x}^{2} - (sum \: of \: roots)x + (product \: of \: roots) }}$

• sum of roots → 4 + 5 = 9

• product of roots → 4 × 5 = 20

• substitute:

${ \boxed{ \rm{4 {x}^{2} - 9x + 20 }}}$

3 0

2 years ago