1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Makovka662 [10]
3 years ago
14

PLS HELP MEE ASAP 1 MIN LEFT HELPP!!!!!!!!!

Mathematics
1 answer:
artcher [175]3 years ago
4 0

Answer: BC = 5.83

Step-by-step explanation:

Luckily, the triangle is placed on the graph nicely so we can count the legs of the triangle:

AB = 5

AC = 3

BC = ?

To find BC, we can simply use the Pythagorean Theorem:

a^{2}+b^{2}=c^{2}

5^2 + 3^2 = c^2

25 + 9 = c^2

34 = c^2

Now square root to find c, or BC.

\sqrt{34}=\sqrt{c^{2} }

c = 5.83 (rounded by nearest hundredth)

You might be interested in
A rectangle has a length of 4 meters. The width is 2 meters more than the length. Work out the area.
Genrish500 [490]

Answer:

24 m^2

Step-by-step explanation:

Given data

Length= 4 meters

Width= 2+4= 6 meters

We know that the expression for the area of a rectangle is given as

A= Lenght* Width

A= 4*6

A= 24m^2

Hence the area is 24 m^2

8 0
3 years ago
Suppose a researcher is interested in determining if there is a relationship between low birth weight and pediatric pneumonia. I
MissTica

Answer:

He will need 4 newborns in the sample to be 95% confident.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.9}{2} = 0.05

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.05 = 0.95, so z = 1.645

Now, find the margin of error M as such

M = z*\sqrt{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the length of the sample.

So:

646 = 1.645*\frac{746}{\sqrt{n}}

646\sqrt{n} = 1227.17

\sqrt{n} = 1.90

\sqrt{n}^{2} = (1.90)^{2}

n = 3.61

He will need 4 newborns in the sample to be 95% confident.

7 0
3 years ago
F=<br> 4m + 3<br> m – 1<br> make m the subject
PSYCHO15rus [73]

Answer:

m = \frac{f+1}{7}

Step-by-step explanation:

f = 4m + 3m -1

f = 7m - 1

<em>Adding 1 to both sides</em>

f+1 = 7m

<em>Dividing both sides by 7</em>

m = \frac{f+1}{7}

6 0
3 years ago
Read 2 more answers
What is the answer to this problem in math everyone seems to have a different answer 3-3x6+2=
Phantasy [73]
3 - 18 + 2
= -13

you should do this question by order of operations.
BODMAS
brackets then division then multiplication then addition then subtraction
8 0
4 years ago
Read 2 more answers
What factors of 32 add up to -12
irakobra [83]

Answer: -8 and -4

This is something you do through trial and error. Making a list or a table like shown below might help.

8 0
3 years ago
Other questions:
  • What is the length of DE?
    6·1 answer
  • Which shows the repeated multiplication for 9³?
    15·2 answers
  • What is the volume of the prism?
    6·2 answers
  • Frankos pizza is selling their pizza 35% cheaper than usal if there are if a pizza normally cost $12.00 how much is it now
    12·2 answers
  • Triangle ABC has side length of 8 inches 12 inches and 15 inches which of the following could be the side lengths of a triangle
    8·1 answer
  • How to find area of this kite?
    5·1 answer
  • The first person to answer this will get brainliest so good luck :D
    7·2 answers
  • Based on the graph, what is the solution to the system of equations below?<br><br> Plz help
    9·1 answer
  • Karla's jewelry box is shaped like a rectangular prism. The bottom surface of the box has an area of 65 square inches. The heigh
    10·1 answer
  • brianna’s cars traveled 106 miles on 3/6 of a tank of gas how far will she be able to go on a full tank of gas ?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!