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3 years ago

Please help me I would really appreciate it

Mathematics

1 answer:

ElenaW [278]3 years ago

8 0

I don't know bebidas held shield vegeioenebeuvejeidbd. 363783901625

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Help on these precalc problems 14-20

Nadya [2.5K]

15) factor out cos: cos(x)(sin(x)+1)=0
Now this is true when either cos(x)=0 (x=pi/2 and 3pi/2)
Or when sin(x)=-1 (x=3pi/2)
So it's solutions are pi/2 and 3pi/2

7 0

3 years ago

The answers to this question cousin

podryga [215]

If R is between Q and S then QR+RS=QS

given
QR=x+4
RS=3x-1
and QS=27

x+4+3x-1=27
combine like terms
4x+3=27
minus 3 both sides
4x=24
divide both sides by 4
x=6

sub back
QR=x+4
QR=6+4
QR=10

RS=3x-1
RS=3(6)-1
RS=18-1
RS=17

x=6
QR=10
RS=17

3 0

3 years ago

it takes 1/2 of a gallon of paint 1/3 of the wall. How Many gallons of paint will it take to paint the entire wall. helppp me as

Sidana [21]

1/3 of the wall takes 1/2 gallon paint.

3(1/3 wall) takes 3(1/2 paint)

1 wall takes 3/2 paint

Answer: 1 $\frac{1}{2}$ gallons paint

7 0

3 years ago

Question Help When purchasing bulk orders of batteries, a toy manufacturer uses this acceptance sampling plan: Randomly select a

S_A_V [24]

Answer:

Step-by-step explanation:

Here X no of defective batteries is binomial with p = 1% = 0.01

q = 1-p=0.99

(Because each battery is independent and there are only two outcomes)

Prob that shipment is accepted is for n =36, $P(X\leq 2)$

=P(x=0,1,2)

= $\Sigma^2_0 36Cr (0.01)^r (0.99)^{36-r}$

= 0.9944

8 0

3 years ago

Read 2 more answers

Select the correct function.

erma4kov [3.2K]

Check the picture below.

so let's use those two points the line passes through to get its slope.

$\bf (\stackrel{x_1}{2}~,~\stackrel{y_1}{0})\qquad (\stackrel{x_2}{4}~,~\stackrel{y_2}{-12}) \\\\\\ slope = m\implies \cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{-12-0}{4-2}\implies \cfrac{-12}{2}\implies -6$

8 0

3 years ago