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Klio2033 [76]
3 years ago
12

7+8 is equal to what?

Mathematics
2 answers:
AURORKA [14]3 years ago
8 0

Answer:

15

Step-by-step explanation:

jekas [21]3 years ago
8 0

Answer:

15

Step-by-step explanation:

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In the figure below, ∆ABC is similar to ∆DBE. Given that BE=10cm, AB=3cm and BD=4cm. Find the length of BC.
frez [133]
Check the picture below

solve for CB

3 0
3 years ago
Help me please <br> !!!!!!!!!!!!!!!
DaniilM [7]
8 units

(This is how I get the answer)

5 0
3 years ago
Which equations are true for x = -2 and x = 2? Select two options
Flauer [41]

Answer:

A and C

Step-by-step explanation:

solving the equations

A

x² - 4 = 0 ( add 4 to both sides )

x² = 4 ( take square root of both sides )

x = ± \sqrt{4} = ± 2 ← required solution

B

x² = - 4 ← has no real solutions

C

4x² = 16 ( divide both sides by 4 )

x² = 4 ( take square root of both sides )

x = ± \sqrt{4} = ± 2 ← required solution

D

2(x - 2)² = 0 , then

x- 2 = 0 ( add 2 to both sides )

x = 2 ← not the required solution

5 0
2 years ago
Read 2 more answers
17/3 divided by 2/3 help please!:))
ludmilkaskok [199]

Answer:

0.94444444444

8 0
3 years ago
in a recent semester at a local university 520 students enrolled in both general chemistry and calculus 1. Of these students 88
IceJOKER [234]

Let Ch and C denote the events of a student receiving an A in <u>ch</u>emistry or <u>c</u>alculus, respectively. We're given that

P(Ch) = 88/520

P(C) = 76/520

P(Ch and C) = 31/520

and we want to find P(Ch or C).

Using the inclusion/exclusion principle, we have

P(Ch or C) = P(Ch) + P(C) - P(Ch and C)

P(Ch or C) = 88/520 + 76/520 - 31/520

P(Ch or C) = 133/520

6 0
3 years ago
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