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3 years ago

What is weight of 1.57 kgs to 5.61 kgs

Mathematics

2 answers:

inna [77]3 years ago

7 0

All you do is divide 1.57kgs and 5.61kgs

and the answer to that would be 3

sergiy2304 [10]3 years ago

5 0

4.04 k g s is the answer for your question

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A/-8+15greater than 23

Ilia_Sergeevich [38]

Answer: $a$

Step-by-step explanation:

$\frac{a}{-8}+15>23$

Subtract 15 from both sides.

$\frac{a}{-8}+15-15>23-15\\\frac{a}{-8} >8$

Multiply by -8 to isolate a.

NOTE: When you multiply or divide by negative numbers, the inequality sign flips.

$-8*\frac{a}{-8}>8*-8$

$a$

8 0

4 years ago

Given: △FKL, FK=a

LuckyWell [14K]

Answer:

$FL= \frac{a (\sqrt{3} + 1)}{\sqrt{2} }$

Step-by-step explanation:

As given in figure 1 below:

FK = a, m∠F = 45° and m∠L = 30°

Construction: Draw an altitude KE from point K on FL.

Now, In ΔFEK,

FE = EK (Sides opposite to equal angles of a triangle)

Let FE = EK = x

Now, using pythagoras In ΔFEK,

$(FK)^{2} = (FE)^{2} + (KE)^{2}$

$(a)^{2} = (x)^{2} + (x)^{2}$

$(a)^{2} = 2x^{2}$

$x = \sqrt \frac{a^{2} }{2} = \frac{a}{\sqrt{2} }$

∴ FE = EK = $\frac{a}{\sqrt{2} }$

Now in ΔEKL, EK = $\frac{a}{\sqrt{2} }$

Using trigonometry ratio,

TanФ = Altitude\ Base

$Tan \theta = \frac{KE}{EL}$

Tan 30° = $\frac{a/\sqrt{2} }{EL}$

$\frac{1}{\sqrt{3} } = \frac{a}{\sqrt{2} EL}$

$EL = \frac{\sqrt{3}a}{\sqrt{2} }$

Now FL = FE + EL

FE = $\frac{a}{\sqrt{2} }$ and $EL = \frac{\sqrt{3}a}{\sqrt{2} }$

∴ $FL = \frac{a}{\sqrt{2} } + \frac{\sqrt{3}a }{\sqrt{2} } = \frac{a (\sqrt{3} + 1)}{\sqrt{2} }$

4 0

4 years ago

Suppose cos(a)=4/5. use the trig identity sin^2(a)+cos^2(a)=1 to find sin(a) in quadrant IV.

natima [27]

Answer:

sin a = -3/5

Step-by-step explanation:

sin^2(a)+cos^2(a)=1

sin^2(a)+ (4/5)^2 = 1

sin^2(a) = 1 - 16/25 = 9/25

sin a = 3/5 ( in Quadrant 1)

In quadrat IV the sine is negative

so sin a = -3/5

7 0

2 years ago

HELP ME PLEASE SOMEBODY

In-s [12.5K]

$\huge\boxed{Solution=B,(3,2)}$

5 0

3 years ago

What is 3.5, 3 2/5, 3 3/8 from least to greatest

pantera1 [17]

We know that 3.5 is also 3 1/2, and that 3 2/5 and 3 3/8 are both less than 3 1/2.

3.5 must be the greatest.

To convert a fraction to a decimal, divide the numerator by the denominator.

So, 3 2/5 is 3.4, and 3 3/8 is 3.375.

The order is 3 3/8, 3 2/5, and 3.5.

6 0

3 years ago