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3 years ago

13

PLS HELP ILL GIVE BRAINLY IF U DO. THIS IS MY LAST QUESTION!

1 answer:

olganol [36]3 years ago

3 0

Answer:

708

Step-by-step explanation:

Using trig we know that tan of an angle is equal to opposite/adjacent, using this we can conclude that tan(42)=top half of x/518 so we do tan(42)*518 to find the side of the top triangle and then do the same process for the bottom one but instead of using tan(42) you use tan(25)

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The triangles are similar, find y

wlad13 [49]

Answer:

y=3.6

Step-by-step explanation:

The scale factor is 3/2.4. So 4.5/y=3/2.4. y=3.6

5 0

3 years ago

Keep getting this wrong

Minchanka [31]

Remember that the y-intercept is where the function has a value of $x = 0$ and the x-intercept is where the function has a value of $y = 0$ . Thus, to find the x-intercept and y-intercept, we can substitute these values into the equation and solve for the other variable.

<u>x-intercept</u>

Since the x-intecept has a y-value of 0, we can substitute this into the function and solve for $x$ .

$0 = -2x - 3$

Set up

$3 = -2x$

Add 3 to both sides

$x = - \dfrac{3}{2}$

Divide both sides by -2

The x-value of the x-intercept is $-\frac{3}{2}$ and the y-value is 0, meaning that the x-intercept has coordinates $\boxed{(-\frac{3}{2}, 0)}$ .

<u>y-intercept</u>

Since the y-intercept has a x-value of 0, we can substitute this into the equation and solve for $y$ :

$y = -2(0) - 3$

Set up

$y = -3$

Multiply and simplify

The y-value of the y-intercept is -3, meaning that the y-intercept of the function is $\boxed{(0, -3)}$ .

4 0

3 years ago

Read 2 more answers

A chemist wants to mix a 10% acid solution with a 26% acid solution to obtain 16 liters of a 14% acid solution. How much of the

oee [108]

You should put a lot of the 26% as it is necessary

3 0

3 years ago

PLZ HELP!!!!!!!!!!!!!!!!

elena-14-01-66 [18.8K]

Answer:

$A=77.04\ in^2$

Step-by-step explanation:

we know that

The area of the shaded sections is equal to the area of the circle minus the area of the triangle

so

$A=\pi r^{2} -\frac{1}{2}(b)(h)$

where

$r=12/2=6\ in$ ----> the radius is half the diameter

$b=12\ in\\h=6\ in$

substitute

$A=(3.14)6^{2} -\frac{1}{2}(12)(6)$

$A=77.04\ in^2$

3 0

3 years ago

Read 2 more answers

Find the slope of the line passing through the points (-7, -4) and (8,8).

lozanna [386]

Answer:

<u>Hope its work for you</u>

Step-by-step explanation:

As we know that,

<h2>slope=m=(Y2-Y1)/(X2-X1) </h2>

As given values

take, (X1,Y1)=(-7,-4)

(X2-Y2)=(8,8)

hence X1=-7 , Y1= -4 , X2=8 , Y2= 8

putt the values in the above equation of slope we get ,

m=(8-(-4))/(8-(-7)

<h2><u>m=12/15 Ans</u></h2>

7 0

3 years ago

Read 2 more answers