MATHEMATICS HIGH SCHOOL

Evaluate d/2 + c/3 for c = 6 and d = 10

a) 10
b) 16/5
c) 7
d) 6

Answers

Answer 1
Answer: d/2 + c/3

10/2 + 6/3

5+6/3

=5+2

=7

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HELP ME PLS one bottle of shampoo costs 6 dollars for 8 Oz a second bottle costs 4 dollars for 5oz of shampoo wich has a lower unit rate and how much lower

Answers

Answer:

The 8 oz has lower unit rate, it's lower by .2.

Step-by-step explanation:

8 oz divided by $6 = $1.333 for 1 oz  ---- (round to 1.3)

6 oz divided by $4 = $1.5 for 1 oz

What is the square root of 16

Answers

Answer:

the square root of 16 is 4

Step-by-step explanation:

What is the meaning of the unknown factor or quotient

Answers


The quotient is the answer to a division problem.

Simplify.
26 + (–3) ∙ (–8)
a. –184
b. –2
c. 2
d. 50

Answers

=>26 + (-3) × (-8)=>26 + 24=>50So the answer is option D (50)....Hope it helps!!!

Work out 5/8 of 10 litres

Answers

5/8 of 10 litres is 6.25 litre
because 5/8=0,625
0,625 * 10 = 6,25 :))

Please help me!!!! So confused

Answers


Question:

The area of the kite is 48 cm². What are the lengths of the diagonals PR and QS?

________


Solution:

You can split the kite into two isosceles triangles:   PSR and PQR.

Assume that both diagonals intersect each other at the point O.


•   Area of the triangle PSR:

           m(PR) · m(OS)
A₁  =  ————————
                     2

           (x + x) · x
A₁  =  ——————
                  2


           2x · x
A₁  =  ————
              2


A₁ = x²        (i)


•   Area of the triangle PQR:

            m(PR) · m(PQ)
A₂  =  ————————
                     2

           (x + x) · 2x
A₂  =  ——————
                  2

           2x · 2x
A₂  =  ————
               2

           4x²
A₂  =  ———
             2


A₂ = 2x²        (ii)


So the total area of the kite is

A = A₁ + A₂ = 48


Then,

x² + 2x² = 48

3x² = 48

            48
x²  =  ———
            3

x² = 16

x = √16

x = 4 cm


•   Length of the diagonal PR:

m(PR) = x + x

m(PR) = 2x

m(PR) = 2 · 4

m(PR) = 8 cm


•   Length of the diagonal SQ:

m(SQ) = x + 2x

m(SQ) = 3x

m(SQ) = 3 · 4

m(SQ) = 12 cm


I hope this helps. =)


Tags:  polygon area triangle plane geometry
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