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3 years ago

Pls help I will mark brainlist if correct!! :) choose an answer for part A and B

Mathematics

1 answer:

salantis [7]3 years ago

6 0

Answer:

Part A:

Your answer is D, 20 so you got that correct nice job!

Part B:

I believe it is either D, 4 or A, 1. I believe it is D though so you should choose that. The reason is because there is 4 that are 7 1/4 inches.

Brainliest is very much appreciated.

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-8=-9 + √2x - 1 find a h and k

gavmur [86]

Answer:

x=2?

Step-by-step explanation:

3 0

2 years ago

In trapezoid ABCD with legs AB and CD , diagonals BD ∩ AC =M so that BM:MD=1:4. Find AAMD, ACMD, and AACD if the area of AABM=8

bazaltina [42]

Answer:

Area of triangle AMD is 32 square inches.

Area of triangle CMD is 8 square inches.

Area of triangle ACD is 40 square inches.

Step-by-step explanation:

In trapezoid ABCD with legs AB and CD.

Diagonal BD and AC intersect at M so that BM:MD=1:4

We are given ar(ABM)=8 in²

Ratio of area of two triangle is equal to ratio of their base.

$\dfrac{ar(ABM)}{ar(AMD)}=\dfrac{BM}{MD}$

$\dfrac{8}{ar(AMD)}=\dfrac{1}{4}$

$ar(AMD)=32\text{ in}^2$

Thus, Area of triangle AMD is 32 square inches.

If two triangles lie on same base and same parallel line then their area is equal.

$\therefore ar(ABD)=ar(ACD)$

$ar(ACD)=ar(ACD)=ar(AMD)+ar(ABM)$

$ar(ACD)=8+32\Rightarrow 40\text{ in}^2$

Thus, Area of triangle ACD is 40 square inches.

$ar(CMD)=ar(ACD)-ar(AMD)$

$ar(CMD)=40-32\Rightarrow 8\text{ in}^2$

Thus, Area of triangle CMD is 8 square inches.

5 0

3 years ago

Evaluate -3x-2(3-x)+14

Nookie1986 [14]

Perform the indicated operations in the order specified by PEMDAS (Order of Operations rules):

-3x - 2(3) - 2(-x) + 14. Multiply first, in two places:

-3x - 6 + 2x + 14 Combine like terms:

8 - x Answer

4 0

3 years ago

Read 2 more answers

Solve the equation 10^(4x−1)=2^5. Round your answer to the nearest hundredth HELPPP!!

77julia77 [94]

You can use the website “Wolfrum Alpha” for answers, it’s great and I use it for math all the time. Also could you please get me brainliest?

8 0

3 years ago

Write in y=mx+b form

MA_775_DIABLO [31]

Answer:

y = -2/3x

Step-by-step explanation:

To write in y=mx+b form, you need the y-intercept (b) and the slope (m).

The y-intercept is the point the line crosses the y-axis. This line crosses the y-axis of (0, 0). This makes the y-intercept equal to 0.

The slope is the rise of the line over the run of the line. Pick two points from the line. It doesn't matter which ones, you will get the right answer regardless.

I picked (0, 0) and (-3, 2). Subtract the x-values from each other, and subtract the y-values from each other.

-3 - 0 = -3 (x)

2 - 0 = 2 (y)

Divide the y by the x to find the slope.

2/-3 = -2/3

Plug in the slope and y-intercept into the equation.

y = mx + b

y = -2/3x + 0

y = -2/3x

6 0

3 years ago