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3 years ago

Find the missing value of X and Y.

Mathematics

1 answer:

Aneli [31]3 years ago

7 0

Answer:

x = y = $\sqrt{45}$

Step-by-step explanation:

$x^{2} + y^{2} = 30^{2} \\x = y \\90 = \sqrt{45} + \sqrt{45} \\\\$ = 90

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Kevin usually walks 30km at x km/h for his walkathon training. If he increases his speed by another 1 km/h, he can complete the

Naily [24]

Answer:

x = 5km/h

Step-by-step explanation:

If he walks 5km/h, he would reach 30km in 6hrs. However, if he walks 1km/hr faster which is 6km/h, he wouls reach 30km in 5hrs. This meaning he can complete the same distance 1 hour faster. Hope this helps you. Follow me for faster replies. And smash that Thank you button.❤

7 0

3 years ago

The volume of the cylinder is V=1/3r^2h, where r is the radius and h is the height. if the radius of a cylinder is 3 inches and

Makovka662 [10]

Answer:

75 inches

Step-by-step explanation:

with this we use change of subject

V=1/3

Pie=3.14

radius =3

height =8

so therefore

V=1/3 ×3.14×3×3×8

V=75.36

8 0

3 years ago

Once I get it wrong, I can’t redo the same question again and I have to go onto the next question. I only have 5 questions but i

iris [78.8K]

Answer:

$\Huge\boxed{29.3}$

Step-by-step explanation:

Hello There!

<u>Remember The Trigonometric Ratios</u>

Sin = opposite divided by hypotenuse

Cos = adjacent divided by hypotenuse

Tan = opposite divided by adjacent

We need to find the measure of angle X given the opposite side length and hypotenuse

Opposite and hypotenuse correspond with sine so we are going to use sine to solve for x

We create an equation: $sin(x)=\frac{43}{88} \\$

$\frac{43}{88} =.4886363636\\sin(x)=.4886363636$

Now we want to get rid of the sin

To do so we take the inverse of sin (which would be arcsin) and apply it to each side

$arcsin^-^1(sinX)=x\\arcsin^-^1(.4886363636)=29.25099306$

finally we round to the nearest tenth

we're left with x = 29.3

7 0

3 years ago

Read 2 more answers

What is the slope of the line that has an x-intercept at x=12 and a y-intercept at y=−20?

steposvetlana [31]

Answer:

The slope is 5/3

Step-by-step explanation:

(12,0)

(0,-20)

Changes in y is -20-0=-20

Changes in x is 0-12=-12

Rise(y) over run(x) = -20/-12

-5/-3

5/3

4 0

3 years ago

Indicate the equation of the line, in standard form, that passes through (2, -4) and has a slope of 3/5. Enter your answer into

Papessa [141]

keeping in mind that standard form for a linear equation means

• all coefficients must be integers, no fractions

• only the constant on the right-hand-side

• all variables on the left-hand-side, sorted

• "x" must not have a negative coefficient

$\bf (\stackrel{x_1}{2}~,~\stackrel{y_1}{-4})~\hspace{10em} \stackrel{slope}{m}\implies \cfrac{3}{5} \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{(-4)}=\stackrel{m}{\cfrac{3}{5}}(x-\stackrel{x_1}{2})\implies y+4=\cfrac{3}{5}x-\cfrac{6}{5}$

$\bf \stackrel{\textit{multiplying both sides by }\stackrel{LCD}{5}}{5(y+4)=5\left( \cfrac{3}{5}x-\cfrac{6}{5} \right)}\implies 5y+20=3x-6\implies 5y=3x-26 \\\\\\ -3x+5y=-26\implies 3x-5y=26$

6 0

4 years ago