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sergejj [24]
3 years ago
13

Tulong po please pang grade 7 po​

Mathematics
2 answers:
Nat2105 [25]3 years ago
5 0

1.)

13 + 29

Add the numbers

<h3>Answer: 42</h3>

2.)

- 6 + 18

Keep the sign of the number with the larger <u>absolute value</u><u> </u>and subtract the smaller absolute value from the larger

+ (18) - 6

Subtract the numbers

<h3>Answer: 12</h3>

3.)

14 + ( - 8)

When there is an + in front of an expression in parentheses, the expression remains the same

14 - 8

Subtract the numbers

<h3>Answer: 6</h3>

4.)

- 11 + ( - 41)

When there is an + in front of an expression in parentheses, the expression remains the same

- 11 - 41

Calculate the difference

<h3>Answer: -52</h3>

5.)

- 51 + 51

The sum of two <u>opposites</u> equal 0

<h3>Answer: 0</h3>

<h2><em>The Other Answer Is In The Comment</em></h2>
sveta [45]3 years ago
3 0

Answer:

15+7+(-2)=22-2=20 hunx

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PLEASE HELP QUICK, I NEED IT
just olya [345]
We take the equation <span>d = -16t^2+12t</span> and subtract d from both sides to get
                                         0<span> = -16t^2+12t - d
We apply the quadratic formula to solve for t. With a = -16, b = 12, c = -d, we have
                                         t = [ -(12) </span><span>± √( 12^2 - 4(-16)(-d) ) ] / [2 * -16]</span>
                                           = [- 12 ± √(144-64d) ] / (-32)
                                           = [- 12 ± √16(9-4d)] / (-32)
                                           = [- 12 ± 4√(9-4d)] / (-32)
                                           = 3/8 ±√(9-4d) / 8
The answer to your question is t = 3/8 ±√(9-4d) / 8
5 0
4 years ago
Read 2 more answers
Mathematics question help
Nat2105 [25]

Distance Formula: \sqrt{(x_{2} - x_{1})^2 + (y_{2} - y_{1})^2}

Point 1: (9,0)

Point 2: (5,-8)

D = sqrt[ (5 - 9)^2 + (-8 - 0)^2 ]

D = sqrt[ (-4)^2 + (-8)^2 ]

D = sqrt[ 16 + 64]

D = sqrt(80)

Hope this helps!

4 0
3 years ago
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The length of a rectangle is 3 times the width. If the perimeter is to be greater than 56 meter. What are the lossible values fo
lidiya [134]

Answer:

w > 7

Step-by-step explanation:

L = 3w

2L + 2w > 56

sub for L

2(3w) + 2w > 56

6w + 2w > 56

8w > 56

w > 7


Check: L = 3(8)

L = 24

2(24) + 2(8) > 56

48 + 16 > 56

64 > 56

7 0
3 years ago
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a woodworker wants to cut a board that is 8.225 feet long into 5 equal pieces. How long will each of the boards be?​
jok3333 [9.3K]

Answer:

1.645 feet

Step-by-step explanation:

To solve this you must divide the total length by 5. 8.225/5=1.645. Each board will be 1.645 feet long

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3 years ago
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Melissa collects data on her college graduating class. She finds out that of her classmates, 60% have brown hair, 20% have blue
Viefleur [7K]

Answer:

your answer is 0.75

Step-by-step explanation:

7 0
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