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
Phantasy [73]
3 years ago
9

please help with maths !

Mathematics
2 answers:
Margarita [4]3 years ago
8 0

Answer:

use Pythagoras theorem for this question because this is a right angled triangle

Anna11 [10]3 years ago
4 0

Answer:

4.91

Step-by-step explanation:

trying to find adjacent, you know the angle and hypotenuse, so use the CAH equation

cos(51) x 7.8 = 4.91 (3 s.f.)

You might be interested in
Escribe una ecuación de la recta que pasa por el punto (5, –8) con pendiente 5.
Nana76 [90]

Considerando la expresión de una ecuación lineal, la ecuación de la recta que pasa por el punto (5, –8) con pendiente 5 es y= 5x - 33.

<h3>Ecuación lineal</h3>

Una ecuación lineal o línea se puede expresar en la forma y = mx + b

donde

  • x y son coordenadas de un punto.
  • m es la pendiente.
  • b es la ordenada al origen y representa la coordenada del punto donde la línea cruza el eje y.

La ecuación lineal se puede expresar también mediante la ecuación punto-pendiente de la recta, que se plantea si se conoce la pendiente de la recta y cualquiera de sus puntos. Con ello queda determinada la recta, conociendo la pendiente  “m” y un punto  (x1, y1) dado:

y - y1= m(x -x1)

<h3>Ecuación de la recta en este caso</h3>

En este caso, la recta que pasa por el punto (5, –8) con pendiente 5.

Reemplazando en la ecuación punto-pendiente de la recta:

y - (-8)= 5(x -5)

Resolviendo:

y + 8= 5(x -5)

Aplicando propiedad distributiva:

y + 8= 5x - 5×5

y + 8= 5x - 25

Aislando la variable "y":

y= 5x - 25 - 8

<u><em>y= 5x - 33</em></u>

Finalmente, la ecuación de la recta que pasa por el punto (5, –8) con pendiente 5 es y= 5x - 33.

Aprende más sobre ecuación de una recta:

brainly.com/question/25243069

brainly.com/question/19260315

brainly.com/question/24766917

#SPJ1

4 0
1 year ago
Which of the following is equivalent to 25 7/2?
pickupchik [31]

Answer:

{25}^{ \frac{7}{2} }  =  \sqrt[2]{ {25}^{7} }  =  \sqrt{ {25}^{7} }  \\

4 0
3 years ago
Read 2 more answers
If the triangles are congruent, then X=?
steposvetlana [31]

Answer:

Hi there!

The correct answer to this question is: x=3

Step-by-step explanation:

because these two triangles are similar, that means the hypotenuse are similar. which means you can set the sides equal to each other like this:

13 = 4x + 1   minus one on both sides and you should get 4x = 12 and then divide 4 on both sides and you should finally get x = 3

7 0
3 years ago
The cost of sending an overnight package from Kansas City to Miami is $23.50 for a package weighing up to but not including 1
Dimas [21]

Answer:

For every pound that the package weight increases, the price of sending it increases by $3.80.

Step-by-step explanation:

The coefficient 3.80 multiplies the variable x (package weight), so if x is 1 pound the cost increase $3.80, if x is 2 pound the cost increase 2*3.80 = $7.6, and so on.  Generally speaking, for every pound that the package weight increases the cost increases by $3.80.

4 0
3 years ago
Read 2 more answers
Cos (a + 60 ) + Cos (a-60)​
Nadusha1986 [10]

Answer:

the answer is 0.9988747935

hope that works!!

8 0
2 years ago
Other questions:
  • 3 2/3 = 2 + N/3 solve for N
    11·1 answer
  • -2x – 4 &lt; 3x + 21<br> Solve the inequality
    12·1 answer
  • Arrange the given numbers in descending order 4/5,0.09,4,9,2/4
    11·2 answers
  • What is the solution to the equation 3.6m − 2.7 = −1.8m?
    15·2 answers
  • On Monday, 230 students were supposed to go on a trip to the zoo but 22 did not have permission slips. 5 buses were filled and 8
    5·2 answers
  • Harriet calculated 27 divided 4 = 6.75 how can you find 270 divided 4 without dividing
    10·1 answer
  • The sum of four consecutive whole numbers is 94.what is the largest numbers?
    10·1 answer
  • Can you pls help me with these questions?<br> I'm giving brainliest ^^
    12·2 answers
  • X/2-1=3 what is X PLEASE HELPPPPPPPPPPP
    10·2 answers
  • Dennis drew the line of best fit on the scatter plot shown below:
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!