3 years ago

Need help with thise 2 question

Mathematics

1 answer:

Lynna [10]3 years ago

4 0

39/2÷3 i am pretty sure thats what you dp. you convert the mixed number into a fraction then divide it by three

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How do you write 6.359 × 10^-14 in standard form?

elixir [45]

$6.359*10^-^1^4$

Standard form:

$-6.359*10^-^1^4$

Since the exponent of the scientific notation is negative −14, move the decimal point 14 places to the left. 0.00000000000006359.

6 0

3 years ago

What is f(x)=14−0.5x? <br><br> solve for f(30)

UkoKoshka [18]

The function f(x) is a function of the variable x.

To solve the function for x = 30, just plug in 30 for x.

14 - 0.5(30) = -1

f(30) = -1

3 0

3 years ago

The lateral area of a cone is 555 \pi cm^2 and the radius is 15.1 what is the slant height?

pishuonlain [190]

We know that
[LA]=pi*r*l
where
LA is the lateral area of the cone
r is the radius
l is the slant height
l=LA/(pi*r)
r=15.1 cm
LA=555*pi cm²
l=(555*pi)/(pi*15.1)----> l=36.75 cm

the answer is
the slant height is 36.75 cm

7 0

3 years ago

Given that cos 63°≈ 0.454, enter the sine of a complementary angle.<br> sin

jek_recluse [69]

Answer:

$\cos(63^\circ)$ is the same as $\sin(27^\circ)$ by co-function identities

Step-by-step explanation:

Remember that complementary angles add up to 90°. The angle that i s complementary to 63° is 27°.

Also recall the co-function identities:

sin (90° – x) = cos x
cos (90° – x) = sin x

This means that $\cos(90^\circ-27^\circ)=\sin(27^\circ)\approx0.454$ .

4 0

2 years ago

there are 13 animals in the barn. some are chickens and some are pigs. there are 40 legs in all. how many of each animal are the

madreJ [45]

C=chicken
p=pigs
c+p=13~p=13-c (plug in)
2c+4p=40
2c+4(13-c)=40
2c+52-4c=40
-2c=-12
c=6
6+p=13
p=7
6 chickens
7 pigs

6 0

3 years ago

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