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Helen [10]
3 years ago
5

Pls answer 13 points!! :)

Mathematics
2 answers:
maw [93]3 years ago
5 0

Answer:

140 lb.

Step-by-step explanation:

Brrunno [24]3 years ago
5 0

Answer:

140 pounds

Step-by-step explanation:

75% of 80 is 60

100% of 80 is 80

80+60 = 140

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I) Construct a triangle PQR such that |PQ|=8cm,{RPQ=90°{PQR=30°.Measure |RQ|​
scoray [572]

Answer:

6.93 cm

Step-by-step explanation:

You have a right triangle (90°), so you do as follow:

If I understand correctly, you are looking for the hypotenuse so

cos(30) = \frac{PQ}{QR} = \frac{8 cm}{QR}

That is equal to QR = cos(30)*8 cm = 6.928 cm

5 0
3 years ago
PLEASE HELP
AnnZ [28]

Answer: 7

Step-by-step explanation:

1. multiply both sides by -6 so the -6 on the right side could cancel out and the left side would be -6:  1= a-13/-6 ==> -6=a-13

2. add both sides by 13 so -13 on the right side could cancel out and the left side would be -6+13: -6=a-13 ==> -6+13=a-13+13

3. you know -6+13 equals 7 right? so the answer is a=7

5 0
3 years ago
Read 2 more answers
4<br> Simplify.<br> Rewrite the expression in the form b".<br> 610<br> 66<br> -
m_a_m_a [10]

Applying the division rule of exponents, 6^10/6^6 can be rewritten in the form of b^n as: 6^10/6^6 =  6^4.

<h3>What is the Division Rule of Exponents?</h3>

The division rule of exponents state that if we have a numerator and a denominator with the same base, the quotient will be the base, while we subtract the exponent value of the denominator from the exponent value of the numerator.

For example, if we have, a³/a², the division rule of exponents states that:

a^(3 - 2) = a^1 = a.

Given the expression, 6^10/6^6, we can rewrite the expression in the form of b^n by applying the division rule of exponents as shown below:

6^10/6^6 = 6^(10 - 6)

6^10/6^6 =  6^4

In conclusion, applying the division rule of exponents, 6^10/6^6 can be rewritten in the form of b^n as: 6^10/6^6 =  6^4.

Learn more about the division rule of exponents on:

brainly.com/question/2263967

#SPJ1

4 0
2 years ago
How do I solve these 3 equations ?
Arlecino [84]

Step-by-step explanation:

  • blue one ====> 3x+16 =9x+4 ( alternate angles)

>9x-3x=16-4

>6x=12

>x=2.

  • white one ====> 10x-2=9x+5 (corresponding angle)

>10x-9x=5+2

>x=7.

  • green one ====>8x+10=6x+30(vertically opposite angle)

>8x-6x=30-10

>2x=20

>x=10.

hope this helps you.

7 0
2 years ago
1-(-18)=?<br> Plz explain I'm confused
Ann [662]
1-(-18)= 19 
sense the subtract and negative cancel out, look at it as a plus sign between 1 and 18 so 1+18=19 
4 0
3 years ago
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