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3 years ago

HELP!!!!PLZ!!!ASAP!!!

Mathematics

2 answers:

gladu [14]3 years ago

8 0

I think its 143 because its congruent right

zubka84 [21]3 years ago

7 0

That answer would be 143

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Which tool would be best to solve this problem?

hjlf

Step-by-step explanation:

Cosine Ratio is the best tool to solve this problem.

cos38°=x/8

x =8*cos38°

x = 8*0.79

x = 6.32

5 0

3 years ago

Someone pls help, its on trig ratios.

Mars2501 [29]

Answer:

$BC=12.8,\\AC=15.1$

Step-by-step explanation:

In right triangles only, the tangent of an angle is equal to its opposite side divided by its adjacent side.

Therefore, we have the following equation:

$\tan 58^{\circ}=\frac{BC}{8}$

Solving, we get:

$BC=8\tan 58^{\circ}\approx \boxed{12.8}$

Also in right triangles only, the cosine of an angle is equal to its adjacent side divided by the hypotenuse of the triangle.

$\cos 58^{\circ}=\frac{8}{AC},\\AC=\frac{8}{\cos 58^{\circ}},\\AC\approx \boxed{15.1}$

We can also use the Pythagorean theorem now that we've found BC. However, if you choose to do so, make sure you don't use a rounded value for BC, as that could cause a notable deviation in your final answer.

Using the Pythagorean theorem to verify our answers:

$8^2+(8\tan 58^{\circ})^2=\left(\frac{8}{\cos 58^{\circ}}\right)^2\:\checkmark$

6 0

3 years ago

This question is kinda confusing I need help

Marizza181 [45]

Answer:

D) p³ + 2; when p = 3 the number of plants is 29.

Step-by-step explanation:

Illiana cubed (³) the number of original plants, p, in the garden. Then, she added 2 more plants. We will use n for the number of total plants.

So, the equation should be p³ + 2. Substitute our value for p into the equation and solve.

p³ + 2 = n

3³ + 2 = n

27 + 2 = n

29 = n

There are 29 total plants.

The answer, then, is the last option, p³ + 2; when p = 3 the number of plants is 29.

Good luck ^^

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3 years ago

Adrian spends 35% of her paycheck on her bills. If her last check was for $927, how much did Adrian have left after paying her b

dlinn [17]

It would be 602.55 after all her bills are paid

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3 years ago

Read 2 more answers

A jar contains 25 coins worth $3.05. If the jar contains only nickels and quarters, how

Andrei [34K]

9 quarters = $2.25; and 16 nickels= $0.80.
9 quarters plus 16 nickels is 25 coins and $2.25 + $0.80 = $3.05

6 0

3 years ago