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Umnica [9.8K]
3 years ago
8

I need help with 4 and 5 please

Mathematics
1 answer:
Tamiku [17]3 years ago
3 0

Answer:

C

Step-by-step explanation:

to find 4, you use the equation a^{2}+b^{2}=c^{2} where the c= hypotenuse, which is the slant of the triangle. Then you width and length can by put as a and b. This gives you 15^{2}+4^{2} = s^{2}. Then you solve for s which end up being 15.5.

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Marta wants to purchase charms for her necklace. Each charm cost $1.59. She wants to spend no more than $20 for the charms. Whic
Svetllana [295]

Which inequality represents this situation ?

1.59×n < 20

How many charms can Marta purchase ?

20 : 1.59 = 12 (+$0.92)

5 0
3 years ago
What is the value of
vitfil [10]

Answer:

Can you please write a logical question

4 0
3 years ago
What is the value of y when -5 =<br> = y - 7?<br> 9<br> a. -7<br> b.-11<br> C. -38<br> d. -52
weqwewe [10]

Answer:

2

Step-by-step explanation:

You have to cancel the -7 so you would add +7 to each side.

-7+7=0, -5+7= 2

y=2

Although this isn't an answer choice. Did you mistype something?

8 0
3 years ago
What is the perimeter of a rectangle with sides 2/3x+10 and 1/3x+5
gogolik [260]

Answer:

The perimeter of the rectangle  is 2x+ 30

Step-by-step explanation:

Sides of the rectangle are 2/3x+10 and 1/3x+5

Now, Perimeter of the Rectangle = 2(Length + Breadth)

Here, sum of the sides = (\frac{2}{3}x + 10 )  + (\frac{1}{3}x + 5 )  = (\frac{2}{3}x +\frac{1}{3}x  )  + ( 10+ 5 )

adding like terms with like terms, we get

(\frac{2x + x}{3})  + 15 = \frac{3x}{3}  + 15

Hence, Sum = (x + 15)

Now,  2(Length + Breadth)  = 2(x+15) = 2x + 30

hence, the perimeter of the rectangle  = 2x+ 30

8 0
3 years ago
A triangle with side lengths 13, 30, and 42 is a right triangle. True or False?​
kaheart [24]

Answer:

False

Step-by-step explanation:

42^2-30^2-13^2=695

695 ≠ 0

4 0
3 years ago
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