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3 years ago

Full working out for this question please

Mathematics

1 answer:

kvv77 [185]3 years ago

3 0

Answer: B. t = 9.6tan(29°)

Step-by-step explanation:

Based on the fact:

$tan(x)=\frac{opposite}{adjacent}$

Set x = 29 and solve:

$\\\\tan(29)=\frac{t}{9.6} \\\\t=9.6*tan(29)$

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kenny6666 [7]

Answer:

Step-by-step explanation:

easy

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3 years ago

Which expression is equivalent to 5(4f+3)-2f

Ierofanga [76]

Answer:

f = 5/6

Step-by-step explanation:

5(4f + 3) - 2f

= 20f + 15 - 2f

= 18f + 15

18f = 15

f = 15/18

f = 5/6

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3 years ago

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Which of the following best describes the graph of the polynomial function below?

WARRIOR [948]

Answer:

A. The graph has two zeroes.

Step-by-step explanation:

A zero of a polynomial is a value of x that makes the polynomial equal to zero.

In other words, it is an x-intercept.

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3 years ago

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In triangle $ABC,$ point $D$ is on $\overline{AC}$ such that $AD = 3CD = 12$. If $\angle ABC = \angle BDA = 90^\circ$, then what

Neporo4naja [7]

Answer:

$BD=4\sqrt{3}\ units$

Step-by-step explanation:

we know that

$AD=12\ units$

$3CD=12$ ----> $CD=4\ units$

see the attached figure to better understand the problem

Triangles ABD and BCD are similar by AA Similarity Theorem

Remember that

If two figures are similar, then the ratio of its corresponding sides is proportional

$\frac{BD}{AD}=\frac{CD}{BD}$

substitute the given values

$\frac{BD}{12}=\frac{4}{BD}$

$BD^2=48$

$BD=\sqrt{48}\ units$

simplify

$BD=4\sqrt{3}\ units$

8 0

3 years ago

The equation

faust18 [17]

Answer:

best approximate is 78 F. to find x, count number of hours between 5 am and 2 pm (which is 9). Substitute 9 into the equation and solve. hope this helps!

Step-by-step explanation:

$y = - 0.37 {x}^{2} + 6.15x + 52.3 \\ y = - 0.37 ({9}^{2} ) + 6.15(9) + 52.3 \\ y = - 0.37(81) + 6.15(9) + 52.3 \\ y = - 29.97 + 55.35 + 52.3 \\ y = 77.68$

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3 years ago