All categories

3 years ago

PLEASEEEE HELPPP MEEE WITHHH THISS QUESTIONN PLEASEEE!!!! I NEED A GREAT EXPLANATION PLEASEE!!!!

Mathematics

1 answer:

ipn [44]3 years ago

4 0

The diagonal of a rhombus divides it into two congruent isosceles triangles.

So ∠CBD ≅ ∠CDB

∠CBD + ∠CDB + 68 = 180

2∠CBD = 180 - 68 = 112

∠CBD = 56

We also have

∠BDE + ∠E + ∠DBE = 180

∠DBE = 180 - 73 - 36 = 71

∠EBC = ∠EBD - ∠CBD = 71 - 56 = 15

Answer: ∠EBC = 15 degrees

You might be interested in

I need some one to do this fast!!!

Kruka [31]

It’s 8 u cross multiply 7 and 1 then 1 and 56 and then divide 56 by 7

7 0

2 years ago

A culture started with 5000 bacteria after 5 hours it grew to 6500 bacteria predict how many bacteria will be present after 16 h

postnew [5]

Answer:

After 16 hours bacterial count will be 11600.

Step-by-step explanation:

Bacterial growth is always an exponential growth in a given culture.So the formula for the growth will be

Final counts of bacteria = Initial counts × $(rate of growth)^{time}$

Given from first part Initial counts = 5000

Final counts= 6500 and time of growth = 5 hours

Then we will get the value of rate of growth of bacteria from the bacteria

⇒ 6500 = 5000× $(rate)^{5}$

$(rate)^{5}= \frac{6500}{5000} = 1.3$

$Rate = \sqrt[5]{1.3} = 1.05$

Now again to get the value of bacteria after 16 hours

Final Count = 5000× $(1.05)^{16}$

= 5000×2.32

= 11600

7 0

3 years ago

Joe solved this problem on a math test. 5/6 - 1/4 = 7/8

Travka [436]

Answer:

This is incorrect, the correct answer is 7/12

Step-by-step explanation:

5 0

2 years ago

Is 5(b+3) equivalent to 3(b+5)?

Viktor [21]

Answer:

No, because using the distributive property, you would get 5b+15 and 3b+15. The number of b you have is different.

5 0

3 years ago

Read 2 more answers

Factoring Quadratic Expressions:<br> 5p^2 - p - 18

Dennis_Churaev [7]

$5 p^{2} -p-18$

$5 p^{2}-10p+9p-18$

$5p(p-2)+9(p-2)$

$(p-2)(5p+9)$

3 0

2 years ago