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3 years ago

In the talent show, 6 students plan to sing, 7 students plan to dance, and 2 students plan to

Mathematics

2 answers:

kumpel [21]3 years ago

7 0

Answer:

Rick is correct

Step-by-step explanation:

Ludmilka [50]3 years ago

6 0

Answer:

Rick is correct because there are 6 students that plan to sing and there are only 2 students that plan to tell jokes so the ratio is 6 to 2

Step-by-step explanation:

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What is the axis of symmetry for f(x) = −5x2 − 20x − 10

Tasya [4]

For this case we have the following function:
 $f(x) = -5x^2 - 20x - 10
$
 To find the axis of symmetry, the first thing to do is to derive the function.
We have then:
 $f '(x) = -10x - 20 
$
 Equaling zero we have:
 $-10x - 20 = 0 
$
 We clear the value of x.
We have then:
 $-10x = 20 

x = -20/10 

x = -2 
$
 Answer:
The axis of symmetry is given by:
x = -2

6 0

3 years ago

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(PLEASE ANSWER!) Elena went to a store where you can scoop your own popcorn and buy as

ehidna [41]

1) 73.7
2) 66
3)55
4)77

7 0

4 years ago

A research center poll showed that % of people believe that it is morally wrong to not report all income on tax returns. What is

nataly862011 [7]

Question:

A research center poll showed that 78% of people believe that it is morally wrong to not report all income on tax returns. What is the probability that someone does not have this belief?

The probability that someone does not believe that it is morally wrong to not report all income on tax returns is . (Type an integer or a decimal.)

Answer:

$q = 0.22$

Step-by-step explanation:

Given

Let p represent the given proportion

p = 78%

Required

Determine the probability that someone holds a contrary belief

Start by converting the given proportion to decimal

$p = 78\%$

$p = \frac{78}{100}$

$p = 0.78$

In probability, the sum of opposite probability is equal to 1

Represent the probability that someone holds a contrary belief with q

So;

$p + q = 1$

Make q the subject of formula

$q = 1 - p$

Substitute 0.78 for p

$q = 1 - 0.78$

$q = 0.22$

Hence, the probability that someone does not believe is 0.22

4 0

3 years ago

A number is decreased by 3 and then the result is doubled. if the new result is 6 more than half the original number, what is th

Blizzard [7]

The answer is: " 8 " .
________________________________
Explanation:
________________________________
Let "x" represent the "original number".

2(x - 3) = 6 + (1/2)x ; Solve for "x" ;
______________________________________
Multiple the ENTIRE EQUATION (both sides) by "2" ; to get rid of the fraction:

2*{2(x - 3) = 6 + (1/2)x} ;

to get:

4(x - 3) = 12 + x ;
___________________________
Let us expand the "left-hand side" of the equation:
_____________________________________________
Note the "distributive property of multiplication" :
_____________________________________________
a(b - c) = ab - ac ;

a(b +c) = ab + ac ;
______________________________________________
So; "4(x - 3)" = 4*x - 4*3 = 4x - 12 ;
______________________________________________
Rewrite the equation:
_______________________________________________
4x - 12 = 12 + x ;

Subtract "x" from EACH side of the equation; and Add "12" to EACH SIDE OF THE EQUATION;
______________________________________________
4x - 12 - x + 12 = 12 + x - x + 12 ;

to get:
______________________________________________
3x = 24 ;
_____________________________________________
Now, divide EACH side of the equation by "3" ; to isolate "x" on one side of the equation; and to solve for "x" ;
_____________________________________________
3x/3 = 24/3 ;
_____________________________________________
x = 8 .
_____________________________________________

6 0

4 years ago

Make this into a slope-intersect form x + 7y = -8

GREYUIT [131]

Answer:

Slope: -1

x-intercept: (-7, 0)

y-intercept: (0, -7)

Explanation:

−

Step-by-step explanation:

I DONT KNOW I JUST HAVE DONE THIS LOL

8 0

3 years ago

Read 2 more answers