3 years ago

Can anyone help me with this?

Mathematics

1 answer:

matrenka [14]3 years ago

5 0

Answer:

$\sqrt{7}$

Step-by-step explanation:

Given

4 $\sqrt{7}$ - 10 $\sqrt{7}$ + 7 $\sqrt{7}$ ( add the coefficients of the terms )

= (4 - 10 + 7) $\sqrt{7}$

= 1 $\sqrt{7}$

= $\sqrt{7}$

You might be interested in

What two numbers multiply to 20 and add up to 9

prohojiy [21]

Answer:

5 and 4

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

The mass of 5 m' of copper is 44 800 kg. Work out<br> the density of copper.

solniwko [45]

Here bro this should help

8 0

3 years ago

The length of a rectangle is 4 times its width. The perimeter of the rectangle is 50 cm long. What is the area of the rectangle?

Eduardwww [97]

The answer would be 100

3 0

2 years ago

What is the area of the following circle?

zhannawk [14.2K]

Answer:

38.47 m2

Step-by-step explanation:

Area = 3.5 x 3.5 x 3.14

Area = 12.25 x 3.14

Area = 38.465 --> 38.47m2

Hope that helps!

3 0

3 years ago

Read 2 more answers

Find the value of each variable. Write an<br> equation then solve showing ALL the work<br> A2x+10°

AveGali [126]

Answer:

x = 25

Step-by-step explanation:

The three straight lines in the sides of the triangle means that ALL 3 SIDES ARE EQUAL.

This is an equilateral triangle. So all 3 angles are equal.

We know sum of 3 angles in a triangle is 180. Since 3 of the angles are equal, each angle is:

180/3 = 60

The top angle is given as "2x + 10", thus we can say "2x + 10" is equal to 60 degrees. Now we equate and solve for x:

$2x+10=60\\2x=60-10\\2x=50\\x=\frac{50}{2}\\x=25$

The value of x is 25

4 0

3 years ago