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maks197457 [2]
3 years ago
12

If ABCD \cong≅ EFGH, select the answer choice that has the correct tick marks for corresponding sides

Mathematics
1 answer:
Fiesta28 [93]3 years ago
4 0

Answer:

AB and EF;

BC and FG;

CD and GH;

DA and HE

<em />

Step-by-step explanation:

Given

ABCD  \cong EFGH

Required

Select correct option for corresponding sides

No options were given. So, I will just list out the corresponding sides.

ABCD  \cong EFGH implies that:

A \cong     E

B \cong     F

C \cong     G

D \cong     H

So, the corresponding sides are:

<em>AB and EF; BC and FG; CD and GH; DA and HE</em>

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Solve the following simultaneous equations 2x+5y=0 and 3x-4y=23
Elodia [21]

Answer:

x = 5, y = -2

Step-by-step explanation:

2x + 5y = 0 --- Equation 1

Equation 1×3: <u>6x</u> + 15y = 0 --- Equation 2

3x - 4y = 23 --- Equation 3

Equation 3×2: <u>6x</u> - 8y = 46 --- Equation 3

<em>We will be eliminating 6x from Equation 2. </em>

Equation 3-2: 6x - 8y - 6x - 15y = 46-0

-23y = 46

y = 46 ÷ -23

<u>y = -2 </u>

Substitute y = -2 into Equation 1:

2x + 5y = 0

2x + 5(-2) = 0

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3 years ago
If f(x) = 3x2 - 2x + 5, find f(-2)<br> A) -27 <br> B) -11 <br> C) -3 <br> D) 21
Digiron [165]

Answer:

D

Step-by-step explanation:

You have to be careful that you treat 21 as special. It is the only positive number. As you do the problem, keep an eye on 21.

f(-2) = 3x^2 - 2x + 5                Put -2 wherever you see an x

f(-2) = 3(-2)^2 - 2(-2) + 5         Calculate the first term.    

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f(-2) = 12 + 4 + 5                     Combine

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7 0
3 years ago
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Answer:

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7 0
3 years ago
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stepan [7]
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3 years ago
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Sophie [7]

Answer:

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Step-by-step explanation:

mean 35 sd 5

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30 is 1 sd to the left.

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It has 95% within 2 sd or 47.5% on one side

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