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2 years ago

Plssssssssssssssssssssssssssss

Mathematics

2 answers:

pychu [463]2 years ago

6 0

The answer is D)2275

yawa3891 [41]2 years ago

5 0

Answer:

D) 2275

Step-by-step explanation:

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Tamia is collecting boxes to help her friend move. She found a box that is 8 ft wide, 2 ft high, and 4 ft long how much space wo

Arada [10]

Answer: $64\ ft^3$

Step-by-step explanation:

Given

The dimension of the box is

$\text{width w=}8\ ft\\\text{height h=}2\ ft\\\text{length l=}4\ ft$

Space occupied by the box is equal to its volume i.e.

$\Rightarrow V=l\times b\times h\\\Rightarrow V=4\times 8\times 2\\\Rightarrow V=64\ ft^3$

The volume of the box is $64\ ft^3$ .

4 0

2 years ago

Two forces with magnitudes of 150 and 75 pounds act on an object at angles of 30° and 150°, respectively. Find the direction and

Anastaziya [24]

The problem is modelled in the first picture shown below

To work out the resultant vector, we modelled the vectors 150N and 75N as triangle AOB is shown in the second picture with AB as the resultant vector.

We use the cosine rule to work out the length AB
$AB^{2}= 75^{2}+ 150^{2}-(2*75*150*cos(60))$
$AB^{2} =28125-11250$
$AB^{2}=16875$
$AB= \sqrt{16875} =130$ (nearest whole number)

The third picture shows the full diagram of the vectors

To work out the direction of the resultant vector, we use the sin rule to find the size of angle A and angle B

Angle A
$\frac{130}{sin(60)}= \frac{75}{sin(A)}$
$130sin(A)=75sin(60)$
$sin(A)= \frac{75sin(60)}{130}$
$sin(A)=0.4996300406$
$A= sin^{-1}(0.4996300406)$
$A=30$ (rounded to nearest whole number)

Angle B
$B=180-60-30=90$

Direction is 60° toward negative x-axis

Answer: Magnitude 130N and direction 60° toward negative x-axis

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3 years ago

The Sanchez family is planning a party. They want to budget spending $25 per guest. They already spent $200 on supplies and will

OverLord2011 [107]

Answer:

Step-by-step explanation:

20×25 = 500

20 guest

25 dollars per guest

75s+200= 500

75s = 300

S = 4

They can afford to buy 4 cases of snacks and stay within their budget.

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2 years ago

-20y+6(4y-10) Module 1 study guide

klasskru [66]

-20+24y-60
\ /
\ /
4y-60

7 0

3 years ago

Solve the inequality –3v – 2v > 35 for v.

viva [34]

Answer:

-7 > v OR vice-versa [v < -7]

Step-by-step explanation:

Combine like-terms [-5v > 35], then divide by -5.

NOTE: Since you are dividing by a negative, reverse the sign.

3 0

3 years ago

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