All categories

3 years ago

1. Quadrilateral ABCD has AB = x+3 and CD= 5x –7. What is the length of x

Mathematics

1 answer:

Leviafan [203]3 years ago

4 0

Answer:

x = 2.5

Step-by-step explanation:

since it's a parallelogram, AB = CD so:

x + 3 = 5x - 7

subtract x from each side of the equation:

3 = 4x - 7

add 7 to each side:

4x = 10

divide both sides by 4:

x = 2.5

You might be interested in

If someone used 100 beads to make a necklace. What decimal number would 3 beads represent

AURORKA [14]

Answer:0.03

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Sophie is buying fabric to make items for a craft fair. The table shows some combinations of how much of each color fabric she m

marishachu [46]

Answer:

Step-by-step explanation:

u add up that then u get the answet

7 0

3 years ago

How do I factor (x^2 + 1)^1/2 +2(x^2 + 1)^1/2

professor190 [17]

$(x^{2} + 1)^{ \frac{1}{2}} + 2((x^{2} + 1)^{ -\frac{1}{2}}) \\\\ Take \ out \ (x^{2} + 1)^{ \frac{1}{2}} \ like \ so: \\\\ (x^{2} + 1)^{ \frac{1}{2}}(1 + 2(x^{2} + 1)^{ -1}) \\\\ = (x^{2} + 1)^{ \frac{1}{2}}(1 + \frac{2}{(x^{2} \ + \ 1)}) \\\\ = (x^{2} + 1)^{ \frac{1}{2}}(\frac{2 \ + \ (x^{2} \ + \ 1)}{(x^{2} \ + \ 1)}) \\\\ = (x^{2} + 1)^{ \frac{1}{2}}(\frac{(x^{2} \ + \ 3)}{(x^{2} \ + \ 1)}) \\\\ = \frac{(x^{2} \ + \ 1)^{ \frac{1}{2}}(x^{2} \ + \ 3)}{(x^{2} \ + \ 1)} \\\\$
This is what I would think to do with such an expression;
It should be alright to leave it as it is on the last line as this should be its simplest form;
But, you could write it out as:
$\frac{(x^{2} \ + \ 3)}{(x^{2} \ + \ 1)^{ \frac{1}{2}}} \\\\
= \frac{(x^{2} \ + \ 3)}{ \sqrt{(x^{2} \ + \ 1)}}$

5 0

3 years ago

A gas occupies 1.00 L at standard temperature. What is the volume at 606 K?

tino4ka555 [31]

Answer:

the volume at 606k is 2.22....the third one

Step-by-step explanation:

v1=1.00 t1=273 v2=? t2=606

v1/t1=v2/t2

1.00/273=v2/606

1.00×606=273v2

606=273v2

606/273=v2

2.21 L=v2

3 0

3 years ago

Which of the following expressions is not equivalent to the others?

Mumz [18]

Answer:

Im going to guess the second one

Step-by-step explanation:

It's the only one that does not have more than one negative fraction.

6 0

3 years ago

Read 2 more answers