3 years ago

Determine how many shapes weigh 5 grams? [a]

Mathematics

1 answer:

Zielflug [23.3K]3 years ago

7 0

Answer:

Step-by-step explanation:

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2x= -10 what is x??????

Reptile [31]

The correct answer is X = -5

5 0

3 years ago

If the original quantity is 10 and the new quantity is 14 , what is the percent increase?

Sonbull [250]

Answer:

40%

Step-by-step explanation:

14 - 10 = 4

4/10 = 0.4

0.4 x 100% = 40%

4 0

2 years ago

Test scores: Scores on a statistics exam had a mean of 75 with a standard deviation of 5. Scores on a calculus exam had a mean o

beks73 [17]

Answer:

CV for statistics exam = 15%

CV for calculus exam = 19%

Since the CV for calculus exam is higher, it has a greater spread relative to the mean than the statistics exam.

Step-by-step explanation:

To find coefficient variation we use the formula:

CV = (SD/mean) * 100

CV for the statistics exam:

where; SD= 5

mean= 75

CV = ( 5/75) *100

= 0.15 or 15%

CV for calculus exam

SD = 11

Mean= 58

CV= (11 /58) * 100

= 0.19 or 19%

8 0

3 years ago

Josh currently bench presses 150lbs. He increases that amount by 10% a month for 3 months. About how much can he bench press now

Jlenok [28]

195 lbs.
150✖️.10=15
15✖️3=45
150+45=195

5 0

3 years ago

tina solved a quadratic equation and found the solution to be -3/2 and 6 which of the following is equivalent to the quadratic e

Bond [772]

Answer:

$x^2-\dfrac{9}{2}x-9=0$

Step-by-step explanation:

The solutions of a quadratic equation are :

x = -3/2 and x = 6

or we can write it as :

$x+\dfrac{3}{2}=0\ and\ x-6=0\\\\(x+\dfrac{3}{2})(x-6)=0$

Multiplying both values,

$(x+\dfrac{3}{2})(x-6)=0\\\\x^2-6x+\dfrac{3}{2}x-9=0\\\\x^2-\dfrac{9}{2}x-9=0$

Hence, the required quadratic equation is $x^2-\dfrac{9}{2}x-9=0$ .

7 0

3 years ago