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Trava [24]
2 years ago
9

What does -$20 -$15 +$30 $2 Equal

Mathematics
1 answer:
ad-work [718]2 years ago
4 0

Answer:

-3

Step-by-step explanation:

-20-15+30+2

-35+32

-3

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S 61 – 9u = 10
Shkiper50 [21]

Answer:

Step-by-step explanation:

???

4 0
3 years ago
(7^0)^x = 1 what is x ?
Nataly_w [17]
7^0 = 1
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5 0
3 years ago
Please help me on this question. 20 points guaranteed!!
julsineya [31]

Answer:

A cylinder with a volume of 27\pi cubic inches and a height of 3 inches

Step-by-step explanation:

  • Volume of a cylinder = \pir²h
    (where r is the radius and h is the height)

Volume = 27\pi

Height = 3

⇒ 27\pi = 3\pir²

⇒ 9 = r²

⇒ r = √9 = 3

So height = radius

7 0
2 years ago
Brandon rode in a taxi that charges a flat fee of $2.25 and an additional $0.40 per mile of his trip. If he paid $6.80 for the c
r-ruslan [8.4K]

Answer:

11 \frac{3}{8} miles.

Step-by-step explanation:

To find how many miles Brandon rode, we can create an equation in slope-intercept form: y = mx + b

$2.25 is the flat fee, or the unchanging variable. This is our y-intercept, or b.

$0.40 is the changing variable, as it changes value depending on the amount of miles ridden. This is our slope, or m.

We know Brandon spent $6.80 on the cab ride. So, this is our y.

We get the equation: 6.80 = 0.40x + 2.25.

To solve, first subtract 2.25 from both sides of the equation:

6.80 - 2.25 = 0.40x + 2.25 - 2.25

We get: 4.55 = 0.40x

Now, just divide by 0.40 on both sides:

4.55 ÷ 0.40 = 0.40x ÷ 0.40

We get: 11.375 = x

So, Brandon rode for 11.375 miles. When converted to a mixed number, we get 11 \frac{3}{8} .

<em>I would appreciate brainliest, if not that's ok!</em>

6 0
2 years ago
Cos s=-2/5 and sin t=4/5, s and t are in quadrant II<br> find cos(s+t) and cos(s-t)
mojhsa [17]

Answer:

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•cos(s-t) = cos(s)cos(t) + sin(s)sin(t) = (-⅖).(-⅗) + (√21 /5).(⅘) = +6/25 + 4√21 /25 = (6+4√21)/25

cos(t) = ±√(1 - sin²(t)) → -√(1 - sin²(t)) = -√(1 - (⅘)²) = -⅗

sin(s) = ±√(1 - cos²(s)) → +√(1- cos²(s)) = +√(1 - (-⅖)²) = √21 /5

5 0
2 years ago
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