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3 years ago

Please I need help on this

Mathematics

2 answers:

Stolb23 [73]3 years ago

5 0

Answer:

8.4

Step-by-step explanation:

50 ÷ 25 = 2

(2)2 x 7 x 0.3

4 x 2.1

= 8.4

OlgaM077 [116]3 years ago

5 0

Answer:

9.5

Step-by-step explanation:

$(50/25)^2*2+5*0.3\\(2)^2*2+5*0.3\\4*2+5*0.3\\8+1.5\\9.5$

To solve this you need to use PEMDAS (Parentheses, Exponent, Multiplication, Division, Addition, Subtraction).

PEMDAS is the order in which you need to do the problem. First, do the work within the parentheses. Then, do as the exponent require. After that, multiply as stated. After all of this, you add in the end.

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Which phrase best describes f(x), graphed on the coordinate plane below?

Sphinxa [80]

answer.next time out the graph

Step-by-step explanation:

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4 years ago

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A small plane and a large plane are 6.8km from each other, at the same altitude (height). From an observation tower, the two air

Lemur [1.5K]

Answer:

7.9km

Step-by-step explanation:

(a)See attached for the diagram representing this situation.

(b)

In Triangle ABC

$\text{Using Law of Sines}\\\dfrac{\sin A}{a}=\dfrac{\sin C}{c} \\\dfrac{\sin A}{5.2}=\dfrac{\sin 58^\circ}{6.8} \\\sin A=5.2 \times \dfrac{\sin 58^\circ}{6.8}\\A=\arcsin (5.2 \times \dfrac{\sin 58^\circ}{6.8})\\A=40.43^\circ$

Next, we determine the value of Angle B.

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Finally, we find b.

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4 years ago

The weight of a baby measured in pounds doubles. Does its weight measured in kilograms also double? Explain your answer.?

kvv77 [185]

bearing in mind that 1Kg ≈ 2.2lbs.

so, if a baby is say 2.2lbs, and then it doubles in weight, to 4.4lbs.

well, we know when the baby was 2.2lbs it was exactly 1Kg, but when it went up to 4.4lbs, is it 2Kgs? well, yes, 2Kgs = 2.2 + 2.2 or 2(2.2).

so, multiplying the lbs value by some factor, will retain the Kg:lbs ratio.

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3 years ago

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grin007 [14]

$\bf \sqrt{\cfrac{100}{144}}~~
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144=12\cdot 12\\
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MAVERICK [17]

The answer is 27 1/2.

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