4 years ago

Perform the indicated operation.

Mathematics

1 answer:

rewona [7]4 years ago

6 0

Answer:

your answer should be 7 1/24

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Let vector u = (a, b) and vector v = (c, d). If the vectors are located as shown in the graph, then

AlekseyPX

We have the following vectors:
u = (a, b)
v = (c, d)
We observe that the vectors form an angle of 90 degrees.
Therefore, the product u.v is equal to zero.
We have then:
u.v = (a, b). (c, d) = 0
u.v = ac + bd = 0
ac = -bd
Answer:
B) ac = -bd

6 0

3 years ago

El angulo de elevacion del sol es de 29°12'35''. Calcular la longitud de la sombra proyectada por un hombre de 1,75m de estatura

Bingel [31]

Respuesta:

3,59 metros

Explicación paso a paso:

Conversión del ángulo de elevación a grados;

29 ° 12 '35 "

= 29 ° + 12 '/ 60 + 35 "/ 3600

= 29,20972 °

Resolviendo el triángulo de solución adjunto:

La longitud de la sombra se puede obtener utilizando la relación trigonométrica;

Sin θ = opuesto / hipoteno

Sin 29.20972 = 1.75 / sombra

Sombra = 1.75 / Sin 29.20972

Longitud de la sombra = 3,59 m

3 0

3 years ago

Two fifths of the students in your class are in Band. Of these, one fourth play the saxophone. What fraction of your class plays

ozzi

The fractions of the class is 1/4 because 1/4+1/5=2/5 and 2/5 of the class is in band.

5 0

3 years ago

Read 2 more answers

I need to find the surface of the figure

ikadub [295]

360!!!!!!!!!!!!!!!!!!!!

3 0

3 years ago

Read 2 more answers

The product of -7 and a number is no more than -63

victus00 [196]

There are quite a few
- -7x1 = -7
- -7x2 = -14
- -7x3 = -21
- -7x4 = -28
- -7x5 = -35
- -7x6 = -42
- -7x7 = -49
- -7x8 = -56
and finally -7x9= -63
Hope it helps :)
Puffin

3 0

3 years ago