3 years ago

I need help please

Mathematics

1 answer:

allochka39001 [22]3 years ago

7 0

The answer is B :)))))))

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(3,4)(4,-3)(7,4)(3,8)

aalyn [17]

Answer:

Answer is below

Step-by-step explanation:

$34(4-3)(74)(38)\\=95608$

So therefore your answer is 95608

6 0

4 years ago

The test to detect the presence of the hepatitis B virus is 97% accurate for a person who has the disease and 99% accurate for a

Hoochie [10]

The probability tests to detect the presence of hepatitis B:
P (presence)= 0.97 (true) 0.03 (false)
P (absence)= 0.99 (true) 0.01 (false)

P(infected)=0.0055
P(not infected)= 0.9945

To have an incorrect result:
P[infected and false from P(presence)] + P[not infected and false from P(absence)]

=0.0055*0.03+0.9945*0.01= 0.01011

The answer is 0.01011

3 0

3 years ago

3(x + 3) + 10

Sphinxa [80]

Answer:

b-3x+19

Step-by-step explanation:

you have to open the bracket so 3*x=3x

3*3=9

therefore;3x+9+10=3x+19

7 0

3 years ago

Read 2 more answers

In the diagram, the length of segment BC is 23 units,

SIZIF [17.4K]

Answer:

The length of segment DC 33 units.

Step-by-step explanation:

Given:

The length of segment BC is 23 units.

To find:

Length of segment DC=?

Solution:

AB = 2x + 7

From the figure ,AB = BC

2x + 7 = 23

2x = 23 - 7

2x = 16

x = 8

In the Δ ABD and ΔCBD

(1) AB = BC(As given in the figure.)

(2) ∠DBA = ∠DBC = 90°

(3) BD = BD(Common side of both the triangle.)

Thus by using SAS congurence property .

Δ ABD ≅ ΔCBD

Thus AD = DC(Corresponding sides of the congurent triangle.)

Thus AD = 4x + 1

Substituting x = 8

AD = $4 \times 8 + 1$

AD = 32 + 1

AD = 33 unit

Thus AD = DC = 33 unit

5 0

3 years ago

Read 2 more answers

a function can be classified as one-to-one correspondence, one-to-many correspondence and many-to-one correspondence.

r-ruslan [8.4K]

What in the world lol

3 0

3 years ago

I need help please ​

I need help please