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2 years ago

Write the equation of a line in point slope form that passes through the points (-8.-3) and (2,2) need help

Mathematics

1 answer:

slava [35]2 years ago

7 0

Y+3=1/2•(x+8) (point slope form)
should be correct

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2 kitchen assistants can prepare 10 kg of vegetables in 60 minutes. How long would it take 15 assistants to prepare the same amo

Sonbull [250]

Then just one of them takes 2h.
<span>If you have 25 assistants, the time is 25 times less: 2/25 hours = 4.8 mins = 4 min and 48 sec.</span>

4 0

2 years ago

What is the other square root of 119 + 120i?

MakcuM [25]

Answer:

$\sqrt{119+120 i}=\pm (12.24+i 4.90)$

Step-by-step explanation:

Given

z = 119 + 120 i

Let $\sqrt{119+120 i}=p+iq$

Squaring both sides

$119+120 i=p^2-q^2+2ipq$

Comparing real and imaginary part

Re(LHS)=Re(RHS)

$119=p^2-q^2$ ...........................(1)

comparing Im(LHS)=Im(RHS)

120=2pq

$q=\frac{60}{p}$

Substitute q in 1

$119=p^2-(\frac{60}{p})^2$

$p^4-119p^2-(68)^2=0$

Let $x=p^2$

$x^2-119x-4624=0$

$x=\dfrac{119\pm \sqrt{119^2+4\times 4624}}{2}$

$x=\frac{119\pm 180.71}{2}$

we take only Positive value because $p^2=x$

x=149.85

$p^2=149.85$

thus $p=\pm 12.24$

$q=\pm 4.90$

thus,

$\sqrt{119+120 i}=\pm (12.24+i 4.90)$

8 0

2 years ago

Can somebody help me ??

fiasKO [112]

Answer: C

Step-by-step explanation:

$Formula: V=\pi r^2h$

We do not have the radius, but we do have the diameter. A diameter is twice the radius, therefore we can divide the diameter by 2 in order to obtain the radius.

$\frac{d}{2}=\frac{12}{2} =6$

Plug this info into the formula.

$V=\pi r^2h\\V=\pi (6)^2(7)\\V=\pi 36*7\\V=252\pi in^3$

4 0

2 years ago

Im confused someone solve for me! helppp

densk [106]

Answer:

A=4 b=3c=2 d=1

Step-by-step explanation:

3 0

2 years ago

V125BC [204]

80 minutes because 8•10=80

8 0

3 years ago

Read 2 more answers

Write the equation of a line in point slope form that passes through the points (-8.-3) and (2,2) need help ​

Write the equation of a line in point slope form that passes through the points (-8.-3) and (2,2) need help