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soldi70 [24.7K]
3 years ago
9

Anyone know the answer to this?

Mathematics
1 answer:
EastWind [94]3 years ago
6 0
Answer:  -3 .
___________________
Explanation:
_________________________________

4x² - 8x - 60 = 0 ;
_______________________
DIvide ENTIRE EQUATION by "4"; 
__________________________________
  to get: 

x² - 2x - 15 = 0 ;
_________________
Now, factor the "left-hand side" :
___________________________________
 (x+3)(x-5) = 0  ;
________________________________
We have: x = -3, and x = 5 ;
___________________________________
 The smallest number is: -3 ; which is our answer.
____________________________________________
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What is the measure of ∠ABC
astraxan [27]

Answer:

B

Step-by-step explanation:

The measure of the chord- chord angle ABC is half the sum of the arcs intercepted by the angle and its vertical angle, that is

∠ ABC = 0.5( 82 + 44)° = 0.5 × 126° = 63° → B

4 0
3 years ago
PLEASE HELP ME PLEASE
SCORPION-xisa [38]
<h3>Step-by-step explanation:</h3><h3>(2/3)x - 2 = 7</h3>

(2/3)x = 7 + 2

(2/3)x = 9

2x = 9 × 3

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:. x = 13 1/2

7 0
3 years ago
What is the cross section shown below?
goldenfox [79]
<h3>Answer: Choice A) circle</h3>

Explanation:

Imagine that white rectangle as a blade that cuts the cylinder as the diagram shows. If you pull the top cylinder off and examine the bottom of that upper piece, then you'll see a circle forms. It's congruent to the circular face of the original cylinder. This is because the cutting plane is parallel to both base faces of the cylinder. Any sort of tilt will make an ellipse form. Keep in mind that any circle is an ellipse, but not vice versa.

Another example of a cross section: cut an orange along its center and notice that a circle (more or less) forms showing the inner part of the orange.

Yet another example of a cross section: Imagine an egyptian pyramid cut from the top most point on downward such that you vertically slice it in half. If you pull away one half, you should see a triangular cross section forms.

3 0
4 years ago
Read 2 more answers
Which statement about the value of x is true? x &gt; 38 x &lt; 39 x &lt; 77 x &gt; 103
grigory [225]

Answer:

Second one

Step-by-step explanation:

3 0
3 years ago
Help ASAP!!!<br> First to answer with a correct answer gets brain...
Llana [10]

Hey there!

First, let's multiply each side of the equation by 3 to get rid of the fraction \frac{2}{3}.

9 + 2x = \frac{6}{5}

Next we can multiply each side of the equation by 5 to get rid of the fraction \frac{6}{5}.

45 + 10x = 6

There's your answer!

Hope this helps!

6 0
4 years ago
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