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3 years ago

I need help finding the missing lengths

Mathematics

2 answers:

patriot [66]3 years ago

6 0

Answer:

what missing lengths il try to help. the answer is 5/2

Step-by-step explanation:

nataly862011 [7]3 years ago

3 0

Answer:

Step-by-step explanation:

this missing is watch a video about it

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Need help with geometry homework

KIM [24]

A regular n-gon has n lines of symmetry

The angle of rotational symmetry for regular n-gon is 360 / n degrees.

8 0

3 years ago

Ill mark brainliest, question is attached

Brut [27]

Answer:

v = 9

Step-by-step explanation:

6(v + 3) = 72

6v + 18 = 72

6v = 54

v = 9

7 0

3 years ago

Read 2 more answers

Operations with rational expressions

Scorpion4ik [409]

$$\frac{50-2 w^{2}}{3 w^{2}+9 w-30} \cdot \frac{w^{2}+5 w-14}{6 w-30}=-\frac{w+7}{9}$

Solution:

Given expression:

$$\frac{50-2 w^{2}}{3 w^{2}+9 w-30} \cdot \frac{w^{2}+5 w-14}{6 w-30}$

To solve the given expression:

First simplify: $\frac{50-2 w^{2}}{3 w^{2}+9 w-30}$

$$\frac{50-2 w^{2}}{3 w^{2}+9 w-30}=-\frac{2(w+5)(w-5)}{3(w-2)(w+5)}$

Cancel the common factor (w + 5).

$$=-\frac{2(w-5)}{3(w-2)}$

Now substitute this in the given expression.

$$\frac{50-2 w^{2}}{3 w^{2}+9 w-30} \cdot \frac{w^{2}+5 w-14}{6 w-30}=-\frac{2(w-5)}{3(w-2)} \cdot \frac{w^{2}+5 w-14}{6 w-30}$

Multiply the fractions $\frac{a}{b} \cdot \frac{c}{d}=\frac{a \cdot c}{b \cdot d}$

$$=-\frac{2(w-5)\left(w^{2}+5 w-14\right)}{3(w-2)(6 w-30)}$

Factor the denominator $3(w-2)(6 w-30) =18(w-2)(w-5)$

$$=-\frac{2(w-5)\left(w^{2}+5 w-14\right)}{18(w-2)(w-5)}$

Cancel the common factor 2(w – 5).

$$=-\frac{w^{2}+5 w-14}{9(w-2)}$

Factor the numerator $w^{2}+5 w-14=(w-2)(w+7)$

$$=-\frac{(w-2)(w+7)}{9(w-2)}$

Cancel the common factor (w – 2).

$$=-\frac{w+7}{9}$

$$\frac{50-2 w^{2}}{3 w^{2}+9 w-30} \cdot \frac{w^{2}+5 w-14}{6 w-30}=-\frac{w+7}{9}$

3 0

3 years ago

The formula for the area of the triangle is A = 1/2bh.

Natalka [10]

The answer would be 100m^2=1/2(22)(10)

8 0

3 years ago

-1 3/5 divided by -2/3

Aleonysh [2.5K]

Answer: 2 2/5

Step-by-step explanation:

-1 3/5= -8/5

-8/5*3/-2= 8/5*3/2=24/10=12/5=2 2/5

3 0

3 years ago

I need help finding the missing lengths​

I need help finding the missing lengths