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slavikrds [6]
3 years ago
15

Find the area of the figure. Round to the nearest tenth if necessary.

Mathematics
2 answers:
marin [14]3 years ago
8 0

Answer:

165

Step-by-step explanation:

The formula for finding the area of a trapezoid is (a+b)/2*h

a= longer side

b= shorter side

h=height

Filling in the values:

(21+12)/2*10

21+12=33

33/2=16.5

16.5*10= 165

The area of the trapezoid is 165

rewona [7]3 years ago
6 0
I am pretty sure the answer is 2,520.
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10 +4m when m = -2<br> i really need help on this lol
Leviafan [203]
<h2><u>ANSWER</u></h2>

2

Step-by-step explanation:

10+4m

=> 10+4(-2)

=> 10-8

=> 2

5 0
3 years ago
Read 2 more answers
Evaluate 1/2a^-4b^2 for a=-2 and b=4<br> A) 2<br> B) 1/2<br> C)3<br> D)4
shepuryov [24]

Answer:

The answer to your question is: letter B) 1/2

Step-by-step explanation:

Data

a = -2

b = 4

Equation

(1/2)a⁻⁴b²

Substitution

= (1/2)(-2)⁻⁴(4)²

= (1/2) (1 /2⁴)(4)²

= 1/2 (1/16) (16)

= 16 / 32

= 1 / 2

5 0
3 years ago
How many x-intercepts does the graph of y = 2x^2 + 5x +9 have?
Pepsi [2]

Answer:

2

Step-by-step explanation:

y = 0 at the point where the function intersects x-axis. Thus, yiou have to put

                                              2x2 + x - 10 = 0

and solve the equation. It is better to factor the quadratic expression, which gives us

                                             2x2 + x - 10 = (2x+5)(x-2) = 0

We have 2x +5 = 0     and x-2 = 0. Thus, the intercepts are x = -5/2 = - 2.5    and x = 2.

Read more on Brainly.com - brainly.com/question/12158546#readmore

7 0
3 years ago
-3x(4+(-7)) in distributive property
Liula [17]
Answer: 9

explanation:
4+(-7)= -3
next, you multiply -3 and -3 which is 9 as the two negatives cancel out
8 0
3 years ago
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