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3 years ago

5

I need help on this problem

1 answer:

Nookie1986 [14]3 years ago

3 0

It’s c
-10, -9, -8

Sawarasenai kimi wa shojo na no!~ boku wa yarichin bicchi no osu dayo! ah~

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Two forces, one of 45 pounds and the other 50 pounds, act on the same object. The angle between the forces is 33°. Find the magn

bearhunter [10]

Answer:

The magnitude of the resultant force is: 27.40 pounds

Step-by-step explanation:

Given

$F_1 = 45$

$F_2 = 50$

$\theta = 33$

Required

The magnitude of the resultant vector

To do this, we apply cosine formula

$R^2 = F_1^2 + F_2^2 - 2 * F_1 * F_2 * \cos(\theta)$

This gives:

$R^2 = 45^2 + 50^2 - 2 * 45 * 50 * \cos(33)$

$R^2 = 2025+ 2500 - 4500* 0.8387$

$R^2 = 2025+ 2500 - 3774.15$

$R^2 = 750.85$

Take square roots of both sides

$R = \sqrt{750.85\\$

$R = 27.40$

7 0

3 years ago

Which expression is equivalent to (2r2+r - 1) – (3r2+48 - 5)?

BigorU [14]

Answer:

$-r^2-3r+4$

Step-by-step explanation:

The question is to simplify the expression $(2r^2+r-1)-(3r^2+4r-5)$

First, we can eliminate the 2nd parenthesis expression by changing signs of all the terms since there is a "-" sign in front. Then we add the "Like Terms". The process is shown below:

$(2r^2+r-1)-(3r^2+4r-5)\\=2r^2+r-1-3r^2-4r+5\\=-r^2-3r+4$

The first answer choices (has some typos) is correct. The correct answer is $-r^2-3r+4$

7 0

3 years ago

Paul spent $36.52 at a clothing store. He gave the cashier $40.02. How can the cashier give him the correct change with the

Olin [163]

Answer:

$3.50 (3 dollar bills, and either a half-dollar or 2 quarters)

Step-by-step explanation:

4 0

4 years ago

On a map, each centimeter represents 50 m.

PSYCHO15rus [73]

Tameka's claim is incorrect, because the actual area of the park is 15000 square meters.

The scale measurement of the area of the park is given as:

$1cm : 50m$

Square both sides of the ratio

$(1cm)^2 : (50m)^2$

$1cm^2 : 2500m^2$

Multiply both sides of the ratio by 6

$6 \times 1cm^2 : 6 \times 2500m^2$

Evaluate both factors

$6cm^2 : 15000m^2$

The above means that the actual area of the park is 15000 square meters.

Hence, Tameka's claim is incorrect

Read more about scale drawings at:

brainly.com/question/9011465

8 0

2 years ago

Kate jogged 3 3/4 miles on Saturday morning and 2 1/2 miles Saturday evening. How many miles did she jog on Saturday? (5 2/3 OR

klio [65]

The answer is 6 1/4, because if you making 1/2 = 2/4, 2 + 3 = 5, the 4 stays the same, so its 5 5/4, and to make it proper, you make it 6 1/4

6 0

3 years ago

Read 2 more answers