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lana66690 [7]
2 years ago
14

Will choose brainlist

Mathematics
1 answer:
Gekata [30.6K]2 years ago
4 0

Answer: 0.01429

Step-by-step explanation:

1.429 x 10^{-2}

Now 10^{-2} is just 1/100 or 0.01, because 10^2 is 100

Now we can multiply 1.429 by 0.01 which is 1.429 x 0.01

Or the easy way, we can just place the decimal two places to the left because the power is -2, so 2 places to the left. Moving the decimal to the left makes the number smaller.

So, take 1.492 and move its decimal 2 places to the left

We get 0.01429

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Hector is flying a kite. He has let out 86 feet
Kaylis [27]

Answer:

Hector's kite is 61.84 feet from the ground.

Step-by-step explanation:

The angle of elevation of the kite is 42°15’30” when converted to decimals, it is 42.258333^{0} ≅ 42.26^{0}

Let the height of the kite to the horizontal of angle of elevation be represented as x. Applying the trigonometric function to the sketch of Hector's kite,

Sin θ = \frac{opposite}{hypotenus}

Sin 42.26^{0} = \frac{x}{86}

⇒ x = 86 x Sin 42.26^{0}

      = 86 x 0.6725

     = 57.835

x ≅ 57.84 feet

The height of Hector's kite from the ground = x + 4

                                    = 57.84 + 4

                                   = 61.84 feet

7 0
3 years ago
F(x)=-5x. g(x)=8x^2-5x-9. Find: (f*g) (x)
Troyanec [42]
F(x) = -5x
g(x) = 8x² - 5x - 9

(f×g)(x) = ?
= ((-5x)(8x²-5x-9))
= -40x³ + 25x² + 45x → The answer Opsi D
5 0
3 years ago
Gabriel went to the grocery store and bought bottles of soda and bottles of juice. Each bottle of soda has 35 grams of sugar and
kupik [55]

Answer:

9 bottles of soda and 7 bottles of juice

Step-by-step explanation:

Let x be the number of bottles of soda purchased and y be the number of bottles of juice purchased.

1. Gabriel purchased 2 more bottles of soda than bottles of juice, then

x=y+2

2. Each bottle of soda has 35 grams of sugar, then there are 35x g of sugar in x bottles of soda.

Each bottle of juice has 10 grams of sugar, then there are 10y g of sugar in y bottles of juice.

In total, there are 35x+10y g of sugar.

All bottles collectively contain 385 grams of sugar, thus

35x+10y=385

3. Solve the system of two equations:

\left\{\begin{array}{l}x=y+2\\ \\35x+10y=385\end{array}\right.

Substitute the first equation into the second equation:

35(y+2)+10y=385\\ \\35y+70+10y=385\\ \\35y+10y=385-70\\ \\45y=315\\ \\y=7\\ \\x=7+2=9

7 0
3 years ago
Read 2 more answers
Montega and Luisa are rewritting the scale 1 inch=2 feet in a:b form. who is right?​
vitfil [10]

The correct representation of the scale is 1 inch:2 feet

<h3>What are scale ratios?</h3>

Scale ratios are used to show the relationship between quantities of different measurements

The scale is given as:

1 inch = 2 feet

Represent the above scale, as ratio

Ratio = 1\ inch:2\ feet

Hence, the correct representation of the scale is 1 inch:2 feet

Read more about scales at:

brainly.com/question/24579126

6 0
2 years ago
Find three prime numbers that add up to another prime number.
Illusion [34]
5+7+11=23
3+11+53=67
3+11+61=71
 are some examples
3 0
3 years ago
Read 2 more answers
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