3 years ago

Choose the triangle that seems to be congruent to the given one.

Mathematics

1 answer:

arsen [322]3 years ago

6 0

AFB, the sides are similar

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X<br>81** *34*=246<br><img src="https://tex.z-dn.net/?f=81x%20%2B%201%20%2B%203%7B4x%20%7D%20%3D%20246" id="TexFormula1" title="

anzhelika [568]

Answer:

$x=\frac{1}{4}$

Step-by-step explanation:

$81^{x+1}+3^{4x}=246$

$81=3^4$

Rewrite equation: $3^{4\left(x+1\right)}+3^{4x}=246$

$3^{4\left(x+1\right)}=3^{4x}\times 3^4$

$3^{4x}\times 3^4+3^{4x}=246$

Factor out $3^{4x}$ :

$3^{4x}\left(3^4+1\right)=246$

Divide both sides by $(3^4+1)$ :

$\frac{3^{4x}\left(3^4+1\right)}{3^4+1}=\frac{246}{3^4+1}$

$3^{4x}=\frac{246}{3^4+1}$

$3^{4x}=\frac{246}{82}$

$3^{4x}=3$

Anything to the power of 1 is itself. Hence,

$4x=1\\$

$x=\frac{1}{4}$

3 0

3 years ago

1/1×3+1/2×4+1/3×5 +...+1/18×20=<br><br>Please, help me. ❣️

Sedaia [141]

Answer:3.1944

Step-by-step explanation:

(1÷1×3)+1÷(2×4)+1÷(3×5)+1÷(18×20)

6 0

3 years ago

Sarah spent a total of $7.25 on 8 apples and a packet of grapes. If a packet of grapes cost $2.85, how much did each apple cost?

Novosadov [1.4K]

$0.55 Cents per apple
Hope this helps

7 0

3 years ago

SOMEBODY PLEASE HELP ASAP!!! WILL GIVE BRAINLIEST

Lana71 [14]

Answer:

a- 130, 130, and 50

b- 7 and 10

7 0

3 years ago

Read 2 more answers

Find the difference between (x+7) & (3x+4)

ELEN [110]

(x + 7) - (3x + 4)=
x + 7 - 3x - 4 =
-2x + 3

4 0

3 years ago