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2 years ago

does anyone no how to do this question on math very hard plz explain how to get the answer will mark brailiest 5 star and thx

Mathematics

1 answer:

MrRa [10]2 years ago

5 0

Answer:

Answer is B

Step-by-step explanation:

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PLEASE HELP AND SHOW WORK I RLLY NEED TO PASS

Alex787 [66]

40×4×4=640

b=20 h=4

using formula:

1/2×base×height

1/2×20×4=40

its says scale by factor 4:

b=80 h=16

using formula:

1/2×base×height

1/2×80×16=640

answer------>>>>640cm^2

8 0

3 years ago

Pls Help me with this answer

snow_lady [41]

Answer:

a. 5

b. -3

Step-by-step explanation:

a. (5*(8^1/3 + 27^1/3)^3)^1/4

= ((40^1/3 + 135^1/3)^3)^1/4

≈ ((3.42 + 5.13)^3)^1/4

≈ (8.55^3)^1/4

≈ 625^4

= 5

b. 64^-1/3*(64^1/3 - 64^2/3)

= 0.25*(4 - 16)

= 1/4 or 0.25 *-12

= -12*1 / 4

= -12/4

= -3

Hope this helped :3

8 0

3 years ago

You have prizes to reveal! Go to your game board. X

Delicious77 [7]

B. cdb ....angle cdb is adjacent to angle adb because they have a common side (line db)

8 0

3 years ago

Read 2 more answers

Write anwsers as fractions using / as fraction bar and write the greater value first

puteri [66]

Answer:

Final answer is $\frac{3}{2}$ or $\frac{1}{2}$ .

Step-by-step explanation:

Given equation is $\log_x\left(8x-3\right)-\log_x\left(4\right)=2$

Now we need to solve that equation for x.

$\log_x\left(8x-3\right)-\log_x\left(4\right)=2$

Apply formula $\log_c\left(A\right)-\log_c\left(B\right)=\log_c\left(\frac{A}{B}\right)$

$\log_x\left(\frac{8x-3}{4}\right)=2$

Apply formula $\log_c\left(A\right)=b \Rightarrow c^b=A$

$x^2=\frac{8x-3}{4}$

$4x^2=8x-3$

$4x^2-8x+3=0$

$4x^2-2x-6x+3=0$

$2x(2x-1)-3(2x-1)=0$

$(2x-3)(2x-1)=0$

$2x-3=0$ or $2x-1=0$

$2x=3$ or $2x=1$

$x=\frac{3}{2}$ or $x=\frac{1}{2}$

Hence final answer is $\frac{3}{2}$ or $\frac{1}{2}$ .

6 0

3 years ago

CAN SOMEONE PLEASE HELP ME WITH THIS ILL GIVE YOU BRAINLY IF YOU GET IT RIGHT ALSO PLEASE EXPLAIN HOW YOU GOT THE ANSWER!!!!

Mars2501 [29]

D. 1/3 i think haha lol

4 0

2 years ago