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3 years ago

evaluate x+u when x=4/5 and y=1/3. write you answer as a fration or number in simplest from. the value of the espresso os_.

Mathematics

1 answer:

borishaifa [10]3 years ago

6 0

X+y
4/5+1/3
4/5*3/3=12/15
1/3*5/5=5/15
12/15+5/15=17/15= 1 2/15

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In right △ABC , the right angle is at C, m∠A=30∘ , and AC=5√ 5 units.

Makovka662 [10]

Answer:

5 $\sqrt{15}$ +5 $\sqrt{5}$

Step-by-step explanation:

The core uses the value of the Pythagorean theorem and special angles.

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3 years ago

Solve for y, give the slope and y intercept 5y=20, -y + 3=15x, y +1/3x=17

qaws [65]

$5y=20$ Equation

$y=4$ Divide by 5 on both sides

$5(4)=20$ Plug in for y

$20=20$ Simplify

y=4
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$^{-}y+3=15x$ Equation

$^{-}y=15x-3$ Subtract 3 from both sides

$y=-15x+3$ Divide both sides by -1

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$15x-3+3=15x$ Distribute -1 into the parenthesis

$15x=15x$ Further simplified

y= -15x+3
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$y+ \frac{1}{3}x=17$ Equation

$y=^{-}\frac{1}{3}x+17$ Subtract 1/3x from both sides

$(^{-}\frac{1}{3}x+17 )+\frac{1}{3}x =17$ plug in for y

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8 0

3 years ago

Sales tax is calculated as a percentage of the sales price. If sales tax is 5%, what is the sales tax on clothing that costs $17

Ostrovityanka [42]

Hey! So first you'd convert the 5% to a decimal. Which would be 0.05. Then, multiply the original cost (170) by the decimal (0.05). You would get 8.5. Subtract that number from the original cost and you get $161.50 as the final answer.

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3 years ago

Read 2 more answers

Multiply and simplify: (8b+2)(8b−2)

romanna [79]

Answer : 64b^2 - 4

Hope that helps. If you need me to explain how I got my answer I will provide a picture.

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4 years ago

If $-2 < x \le 3,$ then find all possible values of $5x + 1.$ Give your answer in interval notation.

kotegsom [21]

Answer: $(-9, 16]$

This is the interval from -9 to 16. Exclude -9 but include 16.

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Work Shown:

The idea is to multiply all sides by 5, then add 1 to all sides

$-2 < x \le 3$

$5(-2) < 5x \le 5(3)$

$-10 < 5x \le 15$

$-10+1 < 5x+1 \le 15+1$

$-9 < 5x+1 \le 16$

This converts to the interval notation $(-9, 16]$

note: a curved parenthesis means "do not include this value in the solution set"; while a square bracket has us include the value. So we exclude -9 and include 16.

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3 years ago