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3 years ago

Will give brainliest

Mathematics

1 answer:

Vlada [557]3 years ago

6 0

Answer:

lenght = 2x + 3

breadth = x - 1

perimeter = 40

Now,

perimeter = 2(l+b)

40= 2( 2x + 3 + x - 1)

40= 2(3x - 2)

40 = 6x- 4

40+4 =6x

44/6 =x

x = 7.33

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Pleaaseee help, i need the answer asap! (WILL GIVE BRAINLIEST!!)

Setler79 [48]

Answer:

Step-by-step explanation:

Substituting the ordered pairs into the equation. 3x - y/4 = 11

For (3,-8)

3 * 3 - (-8)/4

9- (-2) = 11

For (4, 4)

3 * 4 - 4/4

12 - 1 = 11

Both ordered pairs equals to 11, therefore, they're both solutions to the equation.

8 0

3 years ago

Cassandra assigns values to some of the measures of triangle ABC. If angle A measures 30°, a = 6, and b = 18, which is true?

Anna [14]

Answer:

The triangle does not exist because sin(A)/a can not be equal to sin(B)/b

Step-by-step explanation:

we know that

step 1

Find the measure of angle B

Applying the law of sines

$\frac{sin(A)}{a}=\frac{sin(B)}{b}$

we have

$A=30\°$

$sin(30\°)=1/2$

$a=6\ units$

$b=18\ units$

substitute

$\frac{(1/2)}{6}=\frac{sin(B)}{18}$

$\frac{1}{12}=\frac{sin(B)}{18}$

$sin(B)=\frac{18}{12}$

$sin(B)=\frac{3}{2}=1.5$

Remember that the value of sine can not be greater than 1

therefore

The triangle does not exist because sin(A)/a can not be equal to sin(B)/b

8 0

3 years ago

Select the solution(s) of the original equation. (x + 4)2 – 3(x + 4) – 3 = 0

zzz [600]

Answer:

x = ± √3 = ± 1.7321

x = 1

x = -1

Step-by-step explanation:

If it correct can you give me Brainliest plz

6 0

3 years ago

Determine if the triangle is Right, Acute or Obtuse.

Lyrx [107]

Answer:

I think the right answer is: Acute

8 0

3 years ago

Read 2 more answers

2 Proofs. Don't forget to mark the

noname [10]

Answer:

Statement #1. JK is congruent to LK, JM is congruent to LM

Reason #1. Given

Statement #2. KM=KM

Reason #2. Reflexive property of equality

Statement #3. Triangle KMJ is congruent to triangle KML

Reason #3. Side, Side, Side triangle congruency theorem.

Statement #4. <J is congruent to <L

Reason #4. Corresponding angles of congruent triangles are congruent.

Step-by-step explanation:

8 0

3 years ago