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dimaraw [331]
4 years ago
11

how do you do this? i don't need it solved i just don't know how to do it. i know the note on the side says how to but i'm still

confused

Mathematics
1 answer:
olchik [2.2K]4 years ago
5 0

Answer:

Perimeter of triangle J= 18.0 units (3 s.f.)

Perimeter of triangle K= 19.0 units (3 s.f.)

Step-by-step explanation:

The length of each side of the triangle can be found using the distance formula below:

\boxed{d=  \sqrt{(y1- y2)^{2} + (x1 - x2)^{2}  } }

Please see the attached pictures for full solution.

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The absolute value of 7<br><br>−12<br><br>is ​
MakcuM [25]

Answer:

7

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Tan 45°. tan² 30° tan 60° <br>slove it​
makvit [3.9K]

Answer:

\frac{\sqrt{3} }{3} or \frac{1}{\sqrt{3} }

Step-by-step explanation:

We can break the problem into three parts,

tan45 = sin(45)/cos(45)=\frac{\frac{\sqrt{2}}{2} }{\frac{\sqrt{2}}{2} } =1

tan^{2}30 =(tan30))^{2}=(sin30/cos30)^2=((1/2)/(\sqrt{3}/2))^2 =(1/\sqrt{3})^2

tan60=sin60/cos60=\frac{\sqrt{3}/2 }{1/2} =\sqrt{3}

Then, tan45*tan^230*tan60=1*(1/sqrt(3))^2*sqrt(3)=1/sqrt(3)=sqrt(3)/3

Therefore, the solution is sqrt(3)/3

4 0
2 years ago
Greg borrows $1975 at a simple interest rate of 5% for 3 years. Linda borrows $1975 at a simple interest rate of 4.5% for years.
weqwewe [10]

Answer:

Greg pays more interest than Linda

He pays $17.45 more

Step-by-step explanation:

Greg

P=$1975

R=5%=0.05

T=3 years

Simple interest=P×R×T

=$1975×0.05×3

=$296.25

Linda

P=$1975

r=4.5%=0.045

n=1

t=3

Linda's Interest is compounded once per period, so we this formula

Compound Interest =P(1+r)^t

=$1975(1+0.045)^3

=$1975(1.045)^3

=$1975(1.141166125)

=$2,253.80

Interest paid=$2,253.80-$1975

=$278.8

5 0
4 years ago
What would be the answer for this question. 1/2 x - 18 = 2
Goryan [66]

Answer:

x = 40

Step-by-step explanation:

1/2x - 18 = 2

1/2x = 2 + 18

1/2x = 20

x = 20 / 1/2

x = 20 * 2/1

x = 40

5 0
3 years ago
3 km<br> 2.8 km<br> what’s the area?
melamori03 [73]

Answer: 8.4 km squared

Step-by-step explanation:

3 x 2.8 = 8.4

5 0
4 years ago
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