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3 years ago

Will give brainliest to correct answer.

Mathematics

2 answers:

REY [17]3 years ago

5 0

The answer is 2x+3 good luck

ValentinkaMS [17]3 years ago

4 0

We can solve this using the infamous Pythagorean Theorem which states that the sum of the squares of the legs equals the squares of the hypotenuse (the longest side). Using this we would square 3 and $2 \sqrt{ x^{2} + 3x}$ and take the square root of their sum.

$3^{2} = 9
$
$(2 \sqrt{ x^{2} + 3x} )^{2} = 4( x^{2} + 3x) = 4 x^{2} + 12x$
$\sqrt{4 x^{2} + 12x + 9} = (2x + 3)$

Final Answer: c = 2x +3

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Can someone help me plz

galina1969 [7]

A= about 75 cents -- This is because you would figure out what 5% is equal to (.05). Then, you would do .05 x 14.90 to get the amount of sales tax you will be paying. By doing this you will get .745 which is approximately .75 which would become 75 cents

b= $15.65 -- For this one, you would do the cents (.75) plus the total (14.90) So you would do 14.90+.75 which = 15.65.

Hope this helped :)

4 0

3 years ago

Find all the missing sides and angles (picture attached)

wel

Answer:

$\boxed{x=73.74}$

$\boxed{y=16.26}$

$\boxed{z=25}$

Step-by-step explanation:

Hello there!

<u>Algebra 1</u>

The first thing we should find is the missing angle

Because this is a right triangle we can solve it using the Pythagorean Theorem

The Pythagorean theorem states that the sum of the two legs squared equal the hypotenuse squared

the formula... $a^2+b^2=c^2$ where a and b = legs and c = hypotenuse

we are given two legs so we plug in a and b and solve for c

$7^2+24^2=c^2\\7^2=49\\24^2=576\\576+49=625\\625=c^2\\\sqrt{c^2} =c\\\sqrt{625} =25\\c=25$

so we can conclude that the missing side length ( or z) equals 25

now to solve for the angles

<u>Trigonometry</u>

We can solve for y using sin

sin = opposite side divided by the hypotenuse

the opposite of y is 7 and the hypotenuse is 25

so we set up an equation $sin(y)=\frac{7}{25}$

now we solve for y

$\frac{7}{28} =.28\\arcsin(y)=y\\arcsin(.28)=16.26020471$

then we round to the nearest hundredth

so we can conclude that angle labeled y = 16.26

<u>basic geometry</u>

Remember all of the angles in a triangle add up to equal 180 so we can find x by subtract the known angles from 180

180 - 90 - 16.26 = 73.74 so we can conclude that x = 73.74

7 0

3 years ago

Need help due tmr :)

aliina [53]

A.) height(h), diameter Sphere(d) = 14.6 in., diameter Cylinder (l) = 11 in.

d^2 = h^2 + l^2
h^2 = d^2 - l^2
h^2 = 14.6^2 - 11^2
h^2 = 213.16 - 121
h^2 = 92.16
h = 9.6 in.

b.) V = (4/3)(pi)(r^3)
r = d/2 = 14.6/2 = 7.3 in.

V = (4/3)(pi)(7.3^3)
V = 518.6893pi in^3
V = 1629.5106 in^3
V = 1629.51 in^3

3 0

3 years ago

This is question is Estimate. 3245 dived 8 Choose 1 answer: A 4 b 40 c 400 d 4000

trapecia [35]

Answer:

<h3>The answer is option C.</h3>

Hope this helps you

4 0

4 years ago

Read 2 more answers

What is -4 = k - (-6) ?

antoniya [11.8K]