All categories

4 years ago

Please help quick due tomorrow

Mathematics

1 answer:

ollegr [7]4 years ago

8 0

Answer:

Step-by-step explanation:

You might be interested in

Calling all mathemeticians

MAVERICK [17]

Wouldn’t be a,or d. I would honestly say B..

4 0

4 years ago

Read 2 more answers

Solve the simultaneous equations C^2+d^2=5 and 3c+4d=2

Naily [24]

If 3c+4d=2 then c=(2-4d)/3
And if you put that into the other equation
${\frac{2 - 4d}{3}}^{2} + {d}^{2} = 5$
Then you multiply everything by 3, getting

${(2 - 4d)}^{2} + 3 {d}^{2} = 15$
And then

$2 - 4d + \sqrt{3} d = \sqrt{15}$
Leaving
$d( \sqrt{3} - 4) = \sqrt{15} - 2$
I dont have a calc with me right now but you just pot this into the calculator:
$d = \frac{ \sqrt{15} - 2 }{ \sqrt{3} - 4}$
And when you get the number you insert it into the nest eqation to get c

$c = \frac{2 - 4d}{3}$
So basically

$c = \frac{2 - 4 \frac{ \sqrt{15} - 2}{ \sqrt{3} - 4} }{3}$

6 0

3 years ago

Read 2 more answers

What percent less than $500 is $200? Pls help fast

ss7ja [257]

Answer:

60% less

Step-by-step explanation:

its simple really.

7 0

3 years ago

Read 2 more answers

Plwees help:)

KATRIN_1 [288]

Answer:

Step-by-step explanation:

10 miles in 80 minutes = 1 mile in x minutes

10/80 = 1/x

10x = 80

x = 80/10

x= 8 miles per minute <===

======================

14 lbs rice for $ 8 = 1 lb rice for x $

14/8 = 1/x

14x = 8

x = 8/14

x = 0.57 per lb <=== thats 57 cents per lb

5 0

3 years ago

Write each of the following expressions as a powers of 2: (4·25)÷(23· 1/16 )

WITCHER [35]

(4 · 2^5) ÷ (2^3 · 1/16 )

= (2^2 · 2^5) ÷ (2^3 · 2^-4 )

= (2^7) ÷ (2^-1)

= 2^8

6 0

3 years ago