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3 years ago

Please help and explain. I am very confused and frustrated.

Mathematics

1 answer:

GREYUIT [131]3 years ago

7 0

Answer:

2/10

Step-by-step explanation:

..................

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A rectangular price tag has a perimeter of 28 centimeters. Its area is 40 square centimeters.

kirill [66]

Answer:

10 x 4

Step-by-step explanation:

what factors are there for 40?

1, 2, 5, 8, 10, 20, 40

A rectangle has 2 equal long sides and 2 equal short sides. The area is the short times the long.

10 plus 10 and 4 plus 4 equals 28. 4 x 10 equals 40.

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3 years ago

Which equation represents the following word problem?

vovikov84 [41]

Answer:

its the last one

Step-by-step explanation:

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3 years ago

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Greatfull in advance :)

nydimaria [60]

Answer:

160 m

Step-by-step explanation:

For the 15-deg angle, h is the opposite leg.

The hypotenuse is 628 m.

The trigonometry ratio that relates the opposite leg and the hypotenuse is the sine.

sin A = opp/hyp

$\sin 15^\circ = \dfrac{h}{628~m}$

$h = 628~m \times \sin 15^\circ$

$h = 162.54~m$

Rounded to 2 significant figures:

h = 160 m

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3 years ago

Can someone please help!! (Simplifying exponential equations)

Snezhnost [94]

Seems we undistributed the $( \frac{5}{2} )^x$

remember
$x^{a+b}=(x^a)(x^b)$
factor out $( \frac{5}{2} )^x$ from each term on the left side
$1( \frac{5}{2} )^x+( \frac{5}{2} )^3( \frac{5}{2} )^x=A( \frac{5}{2} )^x$
undistribute $( \frac{5}{2} )^x$
$( \frac{5}{2} )^x(1+( \frac{5}{2} )^3)=A( \frac{5}{2} )^x$
divide both sides by $( \frac{5}{2} )^x$
$1+( \frac{5}{2} )^3=A$

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4 years ago

How many milligrams are equal to 42 grams?

Lisa [10]

Answer:

42,000

Step-by-step explanation:

1 gram = 1000 milligram

So, multiply.

42 × 1000 = 42,000

Have a great day!

5 0

3 years ago

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