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3 years ago

Please help me so lost

Mathematics

1 answer:

Alex777 [14]3 years ago

6 0

Answer:

The answer is the first one - 8 square roots of 3

Step-by-step explanation:

Using formula is sufficient here.

In hexagon there are 6 same triangles.

You calculate the area of one of them by formula (1/2)*(2)*(4square root of 3/3)

You multiply that by 6 and simplify.

The answer is the first one - 8 square roots of 3

I hope I helped you and I will be happy If you mark my answer as brainliest.

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16/5 x 36/12 x 25/18

solmaris [256]

Answer

$\frac{16}{5}$ * $\frac{36}{12}$ * $\frac{25}{18}$ = $\frac{4}{1} *\frac{2}{3} *\frac{5}{1}=\frac{40}{3} =13\frac{1}{3}$

Step-by-step explanation:

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3 years ago

Select why this equation is true or false without adding.

Black_prince [1.1K]

Answer:

The answer is c.

Step-by-step explanation:

C is correctttttt!!

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3 years ago

A recipe for banana bread spread requires 3 cups of bananas for every 1 1/2 cups of sugar used. At this rate, how many cups shou

anyanavicka [17]

Answer:

We need 1 cup of sugar for 2 cups of bananas

Step-by-step explanation:

We can use proportions to solve this problem. Put bananas on the top and sugar on the bottom

3 cups 2 cups bananas

-------------- = ------------------

1 1/2 cups x cups sugar

Using cross products

3 *x = 2 * 1 1/2

Changing to decimals

3x = 2* 1.5

3x = 3

Divide by 3

3x/3 = 3/3

x=1

We need 1 cup of sugar for 2 cups of bananas

6 0

3 years ago

Read 2 more answers

(20+ m)X5<br> —————— =150 <br> 2<br> Pls help me

lesantik [10]

Answer:

Step-by-step explanation:

I hope you know the basics of algebra.

Divide becomes multiply. Add becomes subtract...

7 0

3 years ago

2. Given a quadrilateral with vertices (−1, 3), (1, 5), (5, 1), and (3,−1):

zlopas [31]

<h2>Explanation:</h2>

In every rectangle, the two diagonals have the same length. If a quadrilateral's diagonals have the same length, that doesn't mean it has to be a rectangle, but if a parallelogram's diagonals have the same length, then it's definitely a rectangle.

So first of all, let's prove this is a parallelogram. The basic definition of a parallelogram is that it is a quadrilateral where both pairs of opposite sides are parallel.

So let's name the vertices as:

$A(-1,3) \\ \\ B(1,5) \\ \\ C(5,1) \\ \\ D(3,-1)$

First pair of opposite sides:

<u>Slope:</u>

$\text{For AB}: \\ \\ m=\frac{5-3}{1-(-1)}=1 \\ \\ \\ \text{For CD}: \\ \\ m=\frac{1-(-1)}{5-3}=1 \\ \\ \\ \text{So AB and CD are parallel}$

Second pair of opposite sides:

<u>Slope:</u>

$\text{For BC}: \\ \\ m=\frac{1-5}{5-1}=-1 \\ \\ \\ \text{For AD}: \\ \\ m=\frac{-1-3}{3-(-1)}=-1 \\ \\ \\ \text{So BC and AD are parallel}$

So in fact this is a parallelogram. The other thing we need to prove is that the diagonals measure the same. Using distance formula:

$d=\sqrt{(y_{2}-y_{1})^2+(x_{2}-x_{1})^2} \\ \\ \\ Diagonal \ BD: \\ \\ d=\sqrt{(5-(-1))^2+(1-3)^2}=2\sqrt{10} \\ \\ \\ Diagonal \ AC: \\ \\ d=\sqrt{(3-1)^2+(-5-1)^2}=2\sqrt{10} \\ \\ \\$

So the diagonals measure the same, therefore this is a rectangle.

5 0

4 years ago