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
avanturin [10]
3 years ago
6

Pleaseee helppp

Mathematics
1 answer:
dybincka [34]3 years ago
8 0

Answer:

C

Step-by-step explanation:

all the options can give 9m+27 except C; 9m+12

You might be interested in
What is the sum of the first five terms of the geometric series 2 − 8 + 32 −
MrMuchimi

Answer:

∑ (n = 1 to 5) (2·(-4)^(n - 1))

S5 = 2·((-4)^5 - 1)/((-4) - 1) = 410


5 0
3 years ago
Isaac and Albert spot a hot air balloon flying at a low altitude. They decide to calculate its height by standing 400 feet apart
yarga [219]

Answer:

144 feet to nearest foot.

Step-by-step explanation:

Let the distance between Albert and the point on the ground that the balloon is directly above be x feet Then for Isaac the distance is 400 - x feet

So we have 2 right angled triangles and:

tan 62 = h/x

tan 48 = h / (400- x)         where h is the height of the balloon.

From the first equation x = h / tan 62 so plugging this into the second one:

tan 48 =  h /  ( 400 - h/tan 62)

h = 400 tan 48 - h tan 48 tan 62

h + h tan 48 tan 62 = 400 tan 48

h ( 1 + tan48 tan62) = 400 tan48

h = 400 tan 48 / (1 +  tan 48 tan 62)

= 143.8 feet.

4 0
3 years ago
Find the volume of a cone with a diameter of 12 m and a height of 5 m.
AnnZ [28]

Answer:

60\pi m³

Step-by-step explanation:

Use the cone volume formula, V = \pir²\frac{h}{3}

If the diameter is 12 m, the radius will be 6 m.

Plug in the height and radius into the formula, and solve:

V = \pir²\frac{h}{3}

V = \pi(6²)\frac{5}{y}

V = \pi(36)\frac{5}{3}

V = 60\pi

So, the volume of the cone is 60\pi m³

6 0
3 years ago
Read 2 more answers
Help me find the angle measure !
levacccp [35]

Answer:20 i think please mark brainliest

Step-by-step explanation:

4 0
3 years ago
Two square rooms have a total floor area of 89m2. One room is 3m longer each way than the other. Find the dimensions of the two
Rudiy27

Answer:

A

Step-by-step explanation:

Let the smaller room have an area of x^2

Let the larger room have an area of (x + 3)^2

(x+3) ^2 + x^2 = 89               Be careful not to make it 89^2.

x^2 + 6x + 9 + x^2 = 89        Expand the binomial squared

2x^2 + 6x + 9 - 89 = 0          Subtract 89 from both sides

2x^2 + 6x + 9 - 89 = 0          Combine

2x^2 + 6x - 90=0                  Divide by 2

x^2 + 3x - 45 = 0         This factors.

(x + 9)(x- 5) = 0

X + 9 gives nothing useful

x - 5 = 0

x = 5

x + 3 = 5+3 = 8

So the answer is A

3 0
3 years ago
Other questions:
  • Part 5:
    11·1 answer
  • Please help me on this.Im stuck on this question.Thanks! :)
    8·1 answer
  • Triangle PQR has vertices at the following coordinates : P(0,1) Q(3,2) R(5,-4) . Determine wether or not triangle PQR is a right
    14·1 answer
  • If 1 foot 12 inches, which expression can be used to find the
    14·2 answers
  • The measure of one acute angle of a right triangle is 12 more than 3 times the measure of the other acute angle. Find the measur
    14·1 answer
  • if an experiment consist of throwing a die and then drawing a letter at random from the English alphabet, how many points are th
    12·1 answer
  • How many combinations of 6 students can a teacher choose from 30 students
    14·2 answers
  • Match the term with the definition.
    14·1 answer
  • A rectangle measures 3cm by 4cm.What is the length of its diagonal ?
    11·1 answer
  • The sum of a number and 8 is 3 less than twice the number. Find the Number?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!