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svet-max [94.6K]
3 years ago
13

Solve each equation by factoring.

Mathematics
1 answer:
NemiM [27]3 years ago
5 0
I am thinking of -38
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It is recommended that people have 1 gram of calcium each day. How many milligrams of calcium is that?
user100 [1]

Answer:

1,000

Step-by-step explanation:

1,000 miligrams is 1 gram hope this helps god bless

8 0
2 years ago
What is the missing step in the given proof?
Anon25 [30]
<span>Statement: ∠7 and ∠8 are supplementary.
Reason: Linear Pair Theorem</span>
8 0
3 years ago
Read 2 more answers
Can someone pls help me solve this question!!!!!!!
KiRa [710]

Total of 90 fish:

c + p = 90

Charlie gave 1/4 c to Peter.  Now

Charlie has c - (1/4) c

Peter has p + (1/4) c

Peter gave 2/5 of his to Charlie. Now

Peter has p + (1/4) c - 2/5( p + (1/4) c )

Charlie has c - (1/4) c + 2/5( p + (1/4) c )

And then they had equal number:

c - (1/4) c + 2/5( p + (1/4) c ) = p + (1/4) c - 2/5( p + (1/4) c )

Let's do the easy subtractions then multiply by 20 to clear the fractions,

(3/4) c + 2/5( p + (1/4) c ) = 3/5( p + (1/4) c )

15c + 8p + 2c = 12p + 3c

14c = 4p

7c = 2p

c + p = 90

2c + 2p = 180

2c + 7c = 180

9c = 180

c = 20

p = 70

Answer: Charlie started with 20, Peter with 70

Check:

Initially C:20, P:70

1/4(20)=5 to P

C:15, P:75

(2/5) 75 = 30 to C

C:45, P45

Good


3 0
3 years ago
Which answers I should have to answer
Nana76 [90]

Given:

The table of point scored in 5 games.

After game 6, the mean number of points scored per game is 9.

To find:

The points scored by Maya in game 6.

Solution:

Let x be the points scored by Maya in game 6. Then sum of scores in all 6 games is:

Sum=8+12+10+6+14+x

Sum=50+x

We know that, the formula for mean is:

\text{Mean}=\dfrac{\text{Sum of all observations}}{\text{Total number of observations}}

So, the mean number of points scored per game is:

\text{Mean}=\dfrac{50+x}{6}

It is given that the mean number of points scored per game is 9.

\dfrac{50+x}{6}=9

50+x=9\times 6

x=54-50

x=4

Therefore, the correct option is A.

6 0
3 years ago
Which expressions are equivalent to the polynomial -12x^2-19x-5
evablogger [386]

\bf (2x^2-11x-9)-(14x^2+8x-4)\implies (2x^2-11x-9)-14x^2-8x-4 \\\\\\ 2x^2-14x^2-11x-8x-9-4\implies -12x^2-19x-5~~\checkmark \\\\[-0.35em] ~\dotfill\\\\ 2(x-1)-3(4x^2+7x+1)\implies 2x-2-12x^2-21x-3 \\\\\\ -12x^2+2x-21x-2-3\implies -12x^2-19x-5~~\checkmark \\\\[-0.35em] ~\dotfill\\\\ 3(x-5)-2(6x^2+9x+5)\implies 3x-15-12x^2-18x-10 \\\\\\ -12x^2+3x-18x-15-10\implies -12x^2-15x-25~~\bigotimes \\\\[-0.35em] ~\dotfill\\\\ (4x^2-13x-7)-(16x^2+9x-5)\implies 4x^2-13x-7-16x^2-9x+5

\bf 4x^2-16x^2-13x-9x-7+5\implies -12x^2-22x-2~~\bigotimes \\\\[-0.35em] ~\dotfill\\\\ (-16x^2+10x-3)+(4x^2-29x-2)\implies -16x^2+10x-3+4x^2-29x-2 \\\\\\ -16x^2+4x^2+10x-29x-3-2\implies -12x^2-19x-5~~\checkmark \\\\[-0.35em] ~\dotfill\\\\ (-15x^2+9x-10)+(3x^2-10x-5)\implies -15x^2+9x-10+3x^2-10x-5 \\\\\\ -15x^2+3x^2+9x-10x-10-5\implies -12x^2-x-15~~\bigotimes

7 0
2 years ago
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