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OverLord2011 [107]
4 years ago
11

Help!!!!!!!!! plz :)

Mathematics
2 answers:
liraira [26]4 years ago
3 0
A = 1/2(b1 + b2) h
46 = 1/2(8 + 15) h
92 = 23 h
h = 92/23
h = 4

Answer
A. 4 cm

Nataly [62]4 years ago
3 0
It’s A. 4 cm your answer
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Write the equation of a circle whose center is at the origin and contains the point (7,0)
arlik [135]

STEP 1: WORK OUT RADIUS

Radius= (square root)(7-0)^2+(0-0)^2

=(sqrt)49

therfore radius=7


This means that the equation of the circle will be x+y=49

3 0
4 years ago
50 points! Please help me
Inga [223]

Answer:

x = 8

y = 14

Step-by-step explanation:

2x + 6 = 4x - 10 (Corresponding angles so they're equal)

2x - 4x = -10 - 6

-2x = -16

x = 8

2x + 6 + 13y - 24 = 180 (Supplementary angles so they add up to 180)

2(8) + 6 + 13y - 24 = 180

16 + 6 + 13y - 24 = 180

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6 0
3 years ago
Nate and some friends go to the fair. Nate spends 12 of his money on rides. He then spends $12 on food. At the end of the day, N
hodyreva [135]

25$

Step-by-step explanation:

12+12= 24
Nate has one left

12+12+1=25

6 0
2 years ago
Differentiating Exponential functions In Exercise,find the derivative of the function. See Example 2 and 3.
Keith_Richards [23]

Answer: The derivative would be f'(x)=2(e^{2x}-e^{-2x})

Step-by-step explanation:

Since we have given that

f(x)=(e^x+e^{-x})^{\frac{4}{2}}\\\\f(x)=(e^x+e^{-x})^2

As we will use "Chain Rule"

and at last we will use the identity ''a^2-b^2=(a-b)(a+b)''

We need to find the derivative of the function:

f'(x)=2(e^x+e^{-x})(e^x-e^{-x})\\\\f'(x)=2(e^{2x}-e^{-2x})

Hence, the derivative would be

f'(x)=2(e^{2x}-e^{-2x})

6 0
4 years ago
Find the value of x..
REY [17]

Answer:

B x = 7

Step-by-step explanation:

You know based on the ratio that it's being scaled by 4 times because the one side 4 is 16 in the bigger pentagon.

So if you go the side that matches the one you need to solve, it's 2.5.

2.5 times 4 = 10 so that bigger pentagon side should equal 10.

The equation x-3 = 10

which means x is 7

8 0
3 years ago
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