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3 years ago

7

What is the measure of ∠x?

1 answer:

Dima020 [189]3 years ago

6 0

The angle is a complementary angle so both angles add up to 90 degrees

Therefore set your equation equal to 90 to find angle of x

53+x=90

Subtract 53 from both sides

X= 37 degrees

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Forces with magnitudes of 2000 newtons and 900 newtons act on a machine part at angles of +30degrees and -45degrees respectively

mote1985 [20]

To get the resultant magnitude and direction of the forces we need to separate the force into its x and y components. For the x components it is the sum of 2000cos(30) and 900cos(45), which is 2368.4469 N. For the y components it will be the sum of 2000sin(30) and -900sin(45), the value for the second force is negative because it is pointing downwards, their sum would be 363.6038 N. The magnitude for the resultant force can be determined using the pythagorean theorem R=sqrt(2368.4469^2 + 363.6038^2) while its direction is found using tan^-1(363.6038/2368.4469). The final answer would be 2396.1946 N with an angle of 8.7279 degrees from the right side of x axis.

3 0

3 years ago

What combination of transformations is shown below?

malfutka [58]

Answer:

it's Reflected then translated

Step-by-step explanation:

3 0

3 years ago

One root of f(x)=x^3+10x^2-25-250 is x = –10. What are all the roots of the function? Use the Remainder Theorem. x = –25 or x =

Alex_Xolod [135]

Answer:

All zeros are

x=-10 , x=-5 , x=5

Step-by-step explanation:

we are given function as

$f(x)=x^3+10x^2-25x-250$

we are given one of zero is x=-10

we have to use Remainder theorem

we can find all possible factor of 250

$250=-5\times 5\times -10$

so, we will check zeros at x=-5 and x=5

At x=-5:

we can plug x=-5

$f(-5)=(-5)^3+10(-5)^2-25(-5)-250$

$f(-5)=-125+250-\left(-125\right)-250$

$f(-5)=0$

At x=5:

we can plug x=5

$f(5)=(5)^3+10(5)^2-25(5)-250$

$f(5)=125+250-\left(125\right)-250$

$f(5)=0$

So, other zeros are

x=-5 and x=5

All zeros are

x=-10 , x=-5 , x=5

6 0

3 years ago

Read 2 more answers

today each cookie costs 0.75 less than the normal price. pight now if you buy 7 of them it will only cost you 2.80 . writw an eq

lbvjy [14]

The normal price of each cookie is $1.15 derived from the equation, c =today price of each cookie + 0.75

<u>Solution:</u>

Given, Today each cookie costs 0.75 less than the normal price.

Right now if you buy 7 of them it will only cost you 2.80

We have to write an equation to determine the normal price of each cookie(c)

And, we are given that, today 7 cookies cost 2.80

Let the cost of one cookie today be “n”

Then we get,

Today 7 cookies ⇒ 2.8

Then, 1 cookie ⇒ n

By criss cross multiplication we get,

$\begin{array}{l}{7 \times n=2.8 \times 1} \\\\ {\rightarrow 7 n=2.8} \\\\ {\rightarrow n=0.4}\end{array}$

Which means that, each cookie costs $0.4 today

Now, we know that,

<em>normal price of each cookie, c = today price of each cookie + $ 0.75 </em>

c = 0.4 + 0.75

c= 1.15

Hence, the normal cost of each cookie is $1.15 derived from the equation, c = today price of each cookie + 0.75

3 0

3 years ago

I have an 88 in my math class, according to my teacher if I get a 75% on my final exam my grade will be 86. my final exam is wha

shusha [124]

Answer:

I think the answer is 30%

8 0

3 years ago

Read 2 more answers