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3 years ago

247: 10^2 and 247*10^2 what is the different about the two answers

Mathematics

1 answer:

CaHeK987 [17]3 years ago

5 0

Um the 2nd one has a star

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If f(x)=3x-2 find f-1 (13)

SOVA2 [1]

Answer:

Firstly

f(x)=3x-2=y then

Interchanging x and y we get

x=3y-2

x+2=3y

y=(x+2)/3

f-1(x)=(x+2)/3

f-1(13)=(13+2)/3

f-1(13)=5

3 0

3 years ago

Find the area of this parallelogram?

Jet001 [13]

So, the area of a parallelogram is the base times the height or

$a = b \times h$

a being area

b being base

h being height

the height is 8 cm and the base is 15 cm

(remember: the heght should be perpendicular to the base)

so we plug in 8 for h and 15 for b to get

$a = 15 \times 8$

and 15 × 8 = (10 × 8) + (5 × 8) = 80 + 40 =120

So the answer is 120

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3 years ago

Help?? Select Congruent or Not Congruent for each pair of triangles.

jeyben [28]

see if this helps

definitions

congruent

1.in agreement or harmony

"institutional and departmental objectives are largely congruent"

2. identical in form; coinciding exactly when superimposed.

6 0

3 years ago

What passes through (-2,5) and (3,9)

Harlamova29_29 [7]

Use maaaathhhhwwwaaayyy

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3 years ago

ONE HUNDRED POINTS

Over [174]

Answer:

See Below.

Step-by-step explanation:

We are given that ∠A = ∠D, and we want to prove that ΔACB ~ ΔDCE.

Statements: Reasons:

$1) \text{ $\angle A=\angle D$}$ $\text{Given}$

$2) \text{ }\angle BCA=\angle ECD$ $\text{Vertical Angles Are Congruent}$

$3) \text{ } \Delta ACB \sim \Delta DCE$ $\text{AA (Angle-Angle) Similarity}$

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3 years ago

Read 2 more answers