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BigorU [14]
3 years ago
10

Find the value of given expression

7D%20%7D%20" id="TexFormula1" title=" \sqrt{21 \times \frac{1}{21} } " alt=" \sqrt{21 \times \frac{1}{21} } " align="absmiddle" class="latex-formula">
​
Mathematics
2 answers:
Naddika [18.5K]3 years ago
7 0

Answer:

√{21×1/21}=√1=1 is your answer

adoni [48]3 years ago
4 0

Answer:

1

Step-by-step explanation:

Evaluate the interior of the square root first and work your way outwards:

\sqrt{21*\frac{1}{21}} =\sqrt{\frac{21}{21}} =\sqrt{1} =1

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Find the correct error |10| = -10
Sunny_sXe [5.5K]

Answer:

The answer cannot be a negative number because those lines around the ten is how far away it is from 0 (its absolute value)

Step-by-step explanation:

7 0
3 years ago
Un proyectil se dispara con una velocidad inicial de 450 pies/ seg y con un angulo de elevacion de 30° sobre la horizontal, calc
MAXImum [283]

<span>A projectile is fired with an initial velocity of 450 ft / sec and with an elevation angle of 30 ° above the horizontal, calculate a) its position and speed after 8s,
The position after 8 seconds will be as follows
horizontal distance:
x=V</span>×t
x=450×8
=3600 ft

 b) the maximum height reached will be given by:
H=[v² sin²θ]/2g
Plugging in the values we get:
H=[450²×sin²30]/(2×10)
H=2,531.25 ft

7 0
3 years ago
Read 2 more answers
1) Factorise 3x^2 + 5x + 2<br> 2) Hence, solve x^2 + 5x + 2
I am Lyosha [343]

Answer: (x+1)(3x+2) , i only got the answer for the first question, sorry!

Step-by-step explanation:

- factorise using AC method

AC= 3 x 2 = 6

find 2 numbers that add to give 5 and multiply to give 6 (3 and 2)

- put them as x in the equation to replace 5x

3x^2 + 2x + 3x + 2

- split the equation in half and expand each side

3x^2+2x | 3x+2

x(3x+2)+1(3x+2)

- put the numbers outside the brackets into a separate bracket

= (x+1)(3x+2)

7 0
2 years ago
Last year Lenny had an annual earned income of $58,475. He also had passive income of $1,255, and capital gains of $2,350. What
Lelechka [254]

<u>Answer:</u>  d. $62,080

<u>Step-by-step explanation:</u>

<u></u>

The capital gain is the profit earned from an investment whereas the passive income is the income generated by very minimal daily efforts.

Given: Annual income earned by Lenny = \$58,475

Passive income =  \$1,255

Capital gain =  \$2,350

Now,  \text{Total gross income =Annual income+Passive income+Capital gain}

=\$58,475+\$1,255+\$2,350=\$62,080

Hence, Lenny's total gross income for the year = $62,080

4 0
3 years ago
Read 2 more answers
What’s the area of the trapezoid ?
WITCHER [35]

Answer:

300

Step-by-step explanation:

find the area of each individual triangle and then add

54+54+96+96=300

5 0
4 years ago
Read 2 more answers
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