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CaHeK987 [17]
3 years ago
7

Find the product: (-9)(-4)

Mathematics
1 answer:
nadya68 [22]3 years ago
3 0

Answer:

36

Step-by-step explanation:

-9*-4=36

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Your parents put $500 into an account paying 7 percent interest for you when you were ten. ten years later they tell you that yo
dsp73
The answer is $983.58
8 0
3 years ago
Read 2 more answers
For a school fundraiser students are selling snack bags and candy bars to raise money on Wednesday the students or 23 snack bags
meriva

Answer:

$1.75

Step-by-step explanation:

The selling for each candy bar may be determined by  a set of linear equations. This pair of linear equations may be solved simultaneously by using the elimination method. This will involve ensuring that the coefficient of one of the unknown variables is the same in both equations.

It may be solved by substitution in that one of the variable is made the subject of the equation and the result is substituted into the second equation .

Let the cost of a snack bag be s and that of a candy bar be c, then if on Wednesday the students or 23 snack bags and 36 candy bars that raised $114.75 on Thursday the seventh so 37 snack bags and 36 candy bars that raised $146.25

23s + 36c = 114.75

37s + 36c = 146.25

14s = 31.5

s = $2.25

23(2.25) + 36c = 114.75

36c = 114.75 - 51.75

36c = 63

c = 63/36

= $1.75

3 0
3 years ago
X/9 > 9 is the question and the answer is 81 but Iḿ not sure how my teacher got the answer 81
Oliga [24]

Answer:

81 < x

Step-by-step explanation:

\frac{x}{9} > 9 → x > 9 \times 9 → x > 81

* The above answer is written in reverse, which is the exact same result.

I am joyous to assist you anytime.

5 0
3 years ago
Prove the trig identity: (tanx/1+secx)+(1+secx/tanx)=2cscx
lakkis [162]
=[(sinx/cosx)/(1+1/cosx)] + [(1+1/cosx)/(sinx/cosx)]

=[(sinx/cosx)/(cosx+1/cosx)]+[(cosx+1/cosx)/(sinx/cosx)]

= [sinx/(cosx+1)] + [(cosx+1)/sinx]

= [sin^2x+(cosx+1)^2] / [sinx (cosx+1)]

= [2+2cosx] / [sinx(cosx+1)]

=[2(cosx+1)] / [sinx (cosx+1)]

= 2/sinx

= 2 cscx

(I think this will be helpful for you. if you can see the picture, it has more detail in it.)

7 0
3 years ago
If 50 one-cent coins were stacked on top of
Sedbober [7]

To make 8 inch tall column approximately 61 coins required.

Given,

Total one cent coins stacked on top of each other in a column = 50

Height of column = 378 inches

Approximate height of one coin = ( 50 / 378)

                                                    = 0.132 inches

To make an 8 inches tall stack No of coins required will be:

Number of coins required  = ( total height / height of one coin )

                   = ( 8 / 0.132 )

                   = 60.60

                    ≅ 61 coins

To make 8 inch tall column approximately 61 coins required.

Learn more about coins here: brainly.com/question/11677207

#SPJ4

7 0
1 year ago
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