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Nady [450]
3 years ago
10

What is the area of this triangle? A=bh/2

Mathematics
1 answer:
Anna007 [38]3 years ago
3 0

Answer:

b=5 h=12 so therefore the equation is (5x12)/2

Step-by-step explanation:

the answer is 30 m

pls mark brainliest (it is the crown)

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Solving equation r^2+5r=-4
shusha [124]

r^2+5r=-4\\\\r^2+5r+4=0\\\\r^2+r+4r+4=0\\\\r(r+1)+4(r+1)=0\\\\(r+4)(r+1)=0\\\\r=-4 \vee r=-1

3 0
4 years ago
Given D,E, and F are collinear points, E is between D and F,
Vladimir [108]

Answer:

<h3>72 units</h3>

Step-by-step explanation:

Given D,E, and F are collinear points and E is between D and F, then the expression DE + EF = DF.... 1 is true

If DE is six times the length of EF, then;

DE = 6DF

DF = DE/6 .....2

Substitute equation 2 into 1;

DE + EF = DF

DE + DE/6 = DF

find the LCM

(6DE+DE)/6 = DF

cross multiply

6DE+DE = 6DF

7DE = 6DF

Given DF = 84units

7DE = 6(84)

7DE = 504

Divide both sides by 7

7DE/7 = 504/7

DE = 72

Hence  the length of segment DE is 72units

6 0
4 years ago
Place the correct coefficients<br> x²y³ +<br> in the difference.<br> xy² +<br> y
antiseptic1488 [7]

The difference between the two polynomials is 11x²3y³ - 4xy².

<h3>What is the Difference between the Polynomials?</h3>

The difference between two polynomials is the result you get by subtracting one from the other.

Thus:

= (4x²2y³ + 2xy² – 2y) – (–7x²y³ + 6xy² – 2y)

= 4x²2y³ + 2xy² – 2y + 7x²y³ - 6xy² + 2y

= 11x²3y³ - 4xy²

Learn more about polynomials on:

brainly.com/question/2833285

#SPJ1

8 0
3 years ago
Factor the expressions and write the equivalent expression<br>1) 20h-5<br>2)15r+35<br>3)-4p+10
MrRa [10]

Answer:

1) 5 ( 4h - 1 )

2) 5 ( 3r + 7 )

3) 2( -2p +5 )

Step-by-step explanation:

For no. 1 you have to find a <u>common factor (</u>a number that divides into both 20 and 5) which is 5 because 20 divided by 5 is 4 and 5 divided by 5 is 1. so you have to do 20h divided by 5 which is 4h (don't forget the h ! ) and you do -5 divided by 1 which is -1. Remember when you do any multiplying or dividing questions with negatives and positives :

minus + minus = minus  (-5*-6 = -30)

positive + positive = positive (5*6 = 30)        * equals multiplacation by the way

minus + positive = minus (-5*6 = -30)

positive + minus = minus (5*-6 = -30)

hope this helped xx

8 0
3 years ago
<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B7%7D%7B8%7D%20%20%5Ctimes%20%20%5Cfrac%7B2%7D%7B4%7D%20%20%3D%20" id="TexFormula1
disa [49]

Answer:

7/16

Step-by-step explanation:

\dfrac78 \times \dfrac24=\dfrac{7 \times 2}{8 \times 4}=\dfrac{14}{32}=\dfrac{7}{16}

4 0
3 years ago
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