20 POINTS! Please help, best answer will recessive brainliest answer points as well as 5 stars and a thank you. :)

Mathematics

1 answer:

Vitek1552 [10]2 years ago

6 0

Answer:

3): 14

Step-by-step explanation:

The problem states that ABC and DEF are similar. Therefore, dsue to similar triangles, we have 7x/7=4/x, so x^2=4. Therefore, x=2 (because x cannot be negative). Therefore, AB = 7x = 7*2=14

You might be interested in

Simplify and leave your answer in index form

velikii [3]

Answer:8a^7

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

Timothy is re-arranging his marble collection.he has five identical blue marbles,five identical green marbles and three identica

romanna [79]

Based on the scenario, the case must be filled like this :

blue/green/black x blue/ green/black x blue/green/black x random x random

Different ways he can arrange it :

3 x 5!/(2!x2!) + 3x <span>5!/3!
</span>
90 + 60

= 150 ways

hope this helps

7 0

2 years ago

Read 2 more answers

Which of the following equations is equivalent to y = lnx?

harkovskaia [24]

Step-by-step explanation:

e^ln x - ln xy is equal to (a) y (b) 1/y (c) x (d) 1/x (e) none of these Which of the following equations is equivalent to the equation y = 5^x? (a) y = ln(5x) (b) y = e^5 ln x (c) y = e^x ln 5 (d) y = x ln 5 (e) none of these When $400 is invested in an account that earns 7.5% annualinterest, compounded quarterly, the accumulated value after 5 years (to the nearest cent) is (a) $581.99 (b) $579.98 (c) $574.25 (d) $550.00 (e) none of these

4 0

2 years ago

In the picture PLEASE HELP

Debora [2.8K]

I believe it's not a function because the input (x) 4 has two outputs(y), 2 and 8.

5 0

2 years ago

What is the surface area of a cone when the slant height is 6 mm and the diameter is 4 mm?

Anna [14]

Diameter of cone = d = 4mm
So,
Radius of cone = r = 2mm
Slant Height = l = 6mm
Surface Area = A = ?

The formula for the surface area of cone is:

$A= \pi r(r+l)$

Using the values, we get:

$A= \pi (2)(2+6)=16 \pi$ mm²

Therefore, the surface area of the cone with diameter 4mm and slant height of 6mm will be 16π mm²

8 0

3 years ago