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
Butoxors [25]
2 years ago
8

5th grade algebra. Pls help with these am offering brainliest + bonus points! :D

Mathematics
2 answers:
Gala2k [10]2 years ago
6 0

Answer:

3. 6 5. 3

Step-by-step explanation:

PEMDAS

3. 0.5 x (24) / 3 + 2

12/3 +2

4 + 2

6

5. (4 + 6/3) x 0.5

(4 + 2) x 0.5

6 x 0.5

3

polet [3.4K]2 years ago
6 0

Answer: number 3. is 6 and number 5. is 3

hope it helped

You might be interested in
Plz make the graph <br>(WILL MARK THE BEST ONE AS BRAINILIST)​
Natalija [7]

Answer:

x and y

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
If x^2+1/x^2=3 find the value of x^2/(x^2+1)^2<br> Express answer as a common fraction.<br> Thanks!!
timama [110]

x^2+\dfrac1{x^2}=3\implies x^4+1=3x^2\implies x^4-3x^2+1=0

By the quadratic formula,

x^2=\dfrac{3\pm\sqrt5}2\implies x^2+1=\dfrac{5\pm\sqrt5}2

Then

(x^2+1)^2=\dfrac{25\pm10\sqrt5+5}4=\dfrac{15\pm5\sqrt5}2

\implies\dfrac{x^2}{(x^2+1)^2}=\dfrac{\frac{3\pm\sqrt5}2}{\frac{15\pm5\sqrt5}2}=\dfrac{3\pm\sqrt5}{15\pm5\sqrt5}

Multiply numerator and denominator by the denominator's conjugate:

\dfrac{3\pm\sqrt5}{15\pm5\sqrt5}\cdot\dfrac{15\mp5\sqrt5}{15\mp5\sqrt5}=\dfrac{45\pm15\sqrt5\mp15\sqrt5-25}{15^2-(5\sqrt5)^2}=\dfrac{20}{100}=\dfrac15

3 0
3 years ago
the probability of a radar station detecting an enemy plane is 62%. if 50 stations are in use what is the probability of exactly
podryga [215]
This is binomial probability with n=50 and p=0.62.

We want binom(50,0.62,35).

One way to calculate this is to use a calculator with statistical functions.

My TI-83 Plus turned out the result 0.061.
7 0
3 years ago
Match the equations with their solutions over the interval [0, 2π].
nignag [31]

I solved this using a scientific calculator and in radians mode since the given x's is between 0 to 2π. After substitution, the correct pairs are:

cos(x)tan(x) – ½ = 0 → π/6 and 5π/6

cos(π/6)tan(π/6) – ½ = 0

cos(5π/6)tan(5π/6) – ½ = 0

 

sec(x)cot(x) + 2 = 0 → 7π/6 and 11π/6

sec(7π/6)cot(7π/6) + 2 = 0

sec(11π/6)cot(11π/6) + 2 = 0

 

sin(x)cot(x) + 1/sqrt2 = 0 → 3π/4 and 5π/4

sin(3π/4)cot(3π/4) + 1/sqrt2 = 0

sin(5π/4)cot(5π/4) + 1/sqrt2 = 0

 

csc(x)tan(x) – 2 = 0 → π/3 and 5π/3

csc(π/3)tan(π/3) – 2 = 0

csc(5π/3)tan(5π/3) – 2 = 0

5 0
3 years ago
Read 2 more answers
The area of the surface of a sphere is described by the formula S=4(3.14)r^2. The earth has a radius of 3960 miles and dry land
Stella [2.4K]

Answer: 57,512,581.63miles^2

Step-by-step explanation:

Substitute the value of the radius of the Earth into the formula given in the problem, where r is the radius, to obtain the surface area of the Earth:

S=4(3.14)r^2\\S=4(3.14)(3,960miles)^2\\S=196,960,896miles^2

The problem says that the dry land forms 29.2% of the Earth’s surface, therefore, multiply the surface area by \frac{29.2}{100}=0.292

Threfore, the area of dry land is the following:

S_{land}=(0.292)(196,960,896miles^2)=57,512,581.63miles^2

8 0
2 years ago
Other questions:
  • Kristin drew a triangle with tow congruent sides and one obtuse angle.whitch term accurately describes the triangle
    14·2 answers
  • Write and expression that represents the difference of 32 and n , multiplied by 10
    14·1 answer
  • Three fair coins are tossed. what is the probability that they are all heads if at least one coin is head,
    10·2 answers
  • The school carnival is divided into sections. The dunk tanks are in 1/10 of the carnival. Games are in 4/10 of the carnival. Stu
    11·2 answers
  • Help me please and thank you
    9·1 answer
  • Mr. Fernández packed 31 red apples and 41 green apples into a box for a customer. He packed 8 boxes like this. Mr. Fernández use
    13·1 answer
  • Sum of positive roots of the equation (x2 - 12x + 35) (x2 + 10x + 24) = 504 is
    13·1 answer
  • alan jogged 3^2 miles to school and then 2^2 after school each day for 5 days.Jennifer jogged a total of 45 miles .who jogged th
    10·1 answer
  • Is this right? and if not pls tell why but if I'm right tell why anyway​
    6·1 answer
  • How do you stand up straight to measure your height?​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!