All categories

3 years ago

Help I don’t know the answer

Mathematics

1 answer:

labwork [276]3 years ago

7 0

Answer:

128.4 units.

Step-by-step explanation:

We need to set up ratios to do this problem.

Because both trapezoids are similar, we know that all corresponding sides are similar.

$\frac{42}{35} = \frac{x}{107}$

Simplify.

$4,494 = 35x$

Divide both sides by 35.

$x = 128.4$

You might be interested in

(can i have a little help?) Find the ratio that is equivalent to 3:8. A. 8:11 B. 5:8 C. 6:16 D. 8:10

Serggg [28]

Answer:

6 : 16, 12 : 32 and 18 : 48.

Step-by-step explanation:

4 0

4 years ago

Read 2 more answers

Find ab if the coordinates of a are (3, 5 ( and b are (-3, -3) a- 8 b- 6 c- 12 d- 10

strojnjashka [21]

If you use the distance formula you get 10.

6 0

3 years ago

1/3+1/3x+8/3=-1/3(6x+11)

ivann1987 [24]

Answer:

x=-20/7 or -2.857

Step-by-step explanation:

bring like terms together in each side of the = side

then work the out

3 0

3 years ago

What is the value of n?

algol [13]

Answer:

Step-by-step explanation:

5 0

3 years ago

X² - 6x + 4 = 0 solve and show work. ...?

ycow [4]

The answer is 3 + √5 and 3 - √5.

This is quadratic equation: x² - 6x + 4 = 0
The general quadratic equation is ax² + bx + c = 0
Our equation can be rewritten: 1x² + (-6)x + 4 = 0
So, in our equation we have: a = 1, b = -6, c = 4

Now, x can be calculated using the formula: $x_{1,2}= \frac{-b+/- \sqrt{ b^{2}-4ac } }{2a}$
$x_{1,2} =\frac{-(-6)+/- \sqrt{ (-6)^{2}-4*1*4 } }{2*1} = \frac{6+/- \sqrt{36-16} }{2} = \frac{6+/- \sqrt{20} }{2} =\frac{6+/- \sqrt{4*5} }{2}= \\ 
=\frac{6+/- \sqrt{4}* \sqrt{5} }{2} =\frac{2*3+/- 2\sqrt{5} }{2}= \frac{2(3+/- \sqrt{5}) }{2} =3+/- \sqrt{5}$

From here:
$x_{1} =3+ \sqrt{5} \\ 
x_{2} =3- \sqrt{5}$

6 0

4 years ago