Solve for the variable in 7/28=25/x

Vera_Pavlovna [14]

Answer:

x=6,-4

Step-by-step explanation:

Ok so we know the 2 angles are congruent so you need to set them equal to each other. x^2+5x=7x+24. Then get the x's together so you subtract by 7x to get x^2-2x=24. You would then get 24 on the other side so subtract by 24 to get x^2-2x-24. You then would need to factor the equation out. The factored form would be (x-6)(x+4). Then set it equal to 0 to get 6 and -4.

7 0

3 years ago

Plz help I’ll give Brainly

MrRissso [65]

Answer:

[i] Area of Juan's garden:

Soln,

length(l)=16

width(w)=12

area(a)=?

Now,

a=l×w

=16×12

=192

[ii] Area of Matthew's garden:

Soln,

length(l)=18

width(w)=21

area(a)=?

Now,

a=l×w

=18×21

=378

So,the area ofJuan's garden=192

And

the area of Matthew's garden=378

7 0

3 years ago

Can you please help me with these three for my timed test I have rn. And maybe show your work too please!! Thank you :)

lina2011 [118]

Answer:

HI ITS NOT AB BECUSAEW SHE IS NOT HERE TODAY

Step-by-step explanation:

5 0

4 years ago

How do you subtract fractions

olya-2409 [2.1K]

Answer:

make the denominators ( bottom number ) the same and whatever u do to that do to the top

Step-by-step explanation:

e.g ½ - ⅓

make the common denominator 6

to get from 2 to 6 u times by 3 so it wud be 3/6

and then to get from 3 to 6 u times by 2 so do the same to the numerator (top number) so u get 2/6

3/6 take away 2/6 is 1/6

:)

7 0

3 years ago

Read 2 more answers

A circle has a radius of length r. If you mark off the an arc on the circle of length 3r, what is the measurement of the angle t

prisoha [69]

Answer:

is 171.8 degrees

Step-by-step explanation:

Length of arc subtended by any angle $\alpha$ with a radius r is given by $\alpha *r$ .

For example

to calculate length of circumference

angle subtended by whole circle is 2 $\pi$

Therefore length of circumference is $2\pi *r$

Similarly we can see that for semicircle angle at center is $\pi$

hence length of arc is $\pi r$

____________________________________________

Given in the problem length of arc = 3r

radius= r

let the value of angle be $\alpha$

Plug in the value of length of arc in formula to calculate length of arc we have

3r = $\alpha* r$

$\alpha$ = 3r/r = 3

This value of angle subtended is in radian, we need to convert radian into degrees.

_____________________________________

We know that $\pi$ is equivalent to 180 degrees.

Also value of $\pi$ is 3.14

hence 3.14 radian= 180 degrees

=>3.14/3.14 = 180/3.14 ----degrees dividing both side with 3.14

=> 1 radian = 57.325 degrees

=> 1*3 radian = 57.325 * 3 degrees( multiplying both side with 3 as we need to find value of 3 radian into degrees

=> 3 radian = 171.8 degrees.

the measurement of the angle that subtended by the arc is 171.8 degrees or in radian 3 radian

7 0

3 years ago