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Hunter-Best [27]
3 years ago
5

What is the area of the triangle?45 in45 in​

Mathematics
1 answer:
alexandr402 [8]3 years ago
8 0

Answer:

742.5 \: in. {}^{2}

Step-by-step explanation:

Area Of Triangle

=  \frac{1}{2}  \times base \times height \\

h = 33in.

b = 45 in.

\frac{1}{2}  \times 45 \times 33 \\  \\  \frac{1}{2}  \times 135 \times 11 \\  \\  \frac{1}{2}  \times148 5

742.5 \: in \:  {}^{2}

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coldgirl [10]
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3/1[1/3(12x-24)=16]

12x-24=48
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4 0
3 years ago
Suppose y varies directly as x and y=21 when x=7. which is an equation relating x and y
astra-53 [7]
Y varies directly as x: y=kx, k is a constant.
when x=7, y=21, so we know k=3
therefore, the equation is y=3x
8 0
4 years ago
I understand some of this but this ones got me stumped i tried pemdas but im still lost
Mandarinka [93]
Just replace x with its given value:

9x^{2}-4x-3~~~~\text{where }x=-2\\ \\ \\ 9\cdot (-2)^{2}-4\cdot (-2)-3\\ \\ =9\cdot 4+8-3\\ \\ =36+8-3\\ \\ =41
6 0
3 years ago
Solve the simultaneous equations <br>2p- 3q= 4<br>3p + 2q= 9​
Rzqust [24]

Answer:

q = 6/13, p = 35/13

Step-by-step explanation:

3p + 2q = 9

2p - 3q = 4

_________ (subtract the two equation from each other.)

p + 5q = 5

p = 5 - 5q

2(5 - 5q) - 3q = 4 (substitute value of p into equation)

10 - 10q - 3q = 4

10 - 13q = 4

-13q = -6

<u>q = 6/13</u>

3p + 2(6/13) = 9 (substitute value of q into equation)

3p + 12/13 = 9

3p = 105/13

<u>p = 35/13</u>

<u />

8 0
3 years ago
What is the value of k?<br> k = 28<br> k = 29<br> k = 31<br> k = 42
julia-pushkina [17]

Answer:

k=29

Step-by-step explanation:

we know that

-------> by supplementary angles

Solve for k

Combine like terms in the left side

Substract  both sides

Divide by  both sides

   

therefore

the answer is the option

B

 

6 0
3 years ago
Read 2 more answers
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