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2 years ago

Helppp helping my sister

Mathematics

1 answer:

Nataly_w [17]2 years ago

3 0

WHATjdhdhddiudxbdnshxjdie

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What’s the correct graph ?

maks197457 [2]

Answer:

The correct graph is graph E.

Step-by-step explanation:

We can tell this because we know the graph must stay below 3. So any graph over 3 gets thrown out. We also know that it must not go further down than -3. This is because any number over -3 as an input, when taking an absolute value, would be greater than 3.

Graph E shows numbers that are all less than 3 and greater than -3.

8 0

3 years ago

Find the length of the shorter leg of a right triangle with the longer leg is 9 feet more than the shorter leg the hypotenuse is

Jobisdone [24]

Answer:

Length of Shorter leg = 27 feet

Length of Longer leg = 36 feet

Length of Hypotenuse = 45 feet

Step-by-step explanation:

Given:

Let,

Length of Shorter leg = x,

According to the given condition we have

∴ Length of Longer leg = x + 9 feet

∴ Length of Hypotenuse = 2x - 9 feet

To Find:

Length of Shorter leg = ?

Solution:

Now In Right Angle Triangle, By Pythagoras theorem we have

$(\textrm{Hypotenuse})^{2} = (\textrm{Shorter leg})^{2}+(\textrm{Longer leg})^{2}$

substituting the given values we get

$(2x-9)^{2} = (x)^{2}+(x+9)^{2}\\$

By using Identity (A ± B)² = A² ± 2AB +B² we get

$4x^{2} -36x+81=x^{2} +(x^{2} +18x+81)\\\\4x^{2} -2x^{2} -36x-18x=81-81\\\\2x^{2} -54x=0\\2x(x-27)=0\\2x=0 or x-27=0\\\therefore x\ cannot\ be \ zero\\\therefore x = 27 \feet$

Substituting x=27 we get

∴ Length of Longer leg = x + 9 =27 +9 = 36 feet

∴ Length of Hypotenuse = 2x - 9 = 2×27 -9 = 45 feet

7 0

3 years ago

Marissa painted 1/2 of her bedroom and 3/4 ton an hour at this rate how long would it take her to paint the entire room A. 3/ 8

Nikitich [7]

Answer:

A. 3/8 of an hour

Step-by-step explanation:

if she is not a slacker

7 0

2 years ago

8th grade algebra question

Nonamiya [84]

Answer:

x-int : 6, y-int : 9

Step-by-step explanation:

Hope this helps :)

Let me know if you want a full explanation

6 0

2 years ago

Which ratio is equivalent to the ratio 2:5? a. 6:15 b. 5:2 c. 5:8 d. 4:7

Alex_Xolod [135]

The answer is A) 6:15, because if you divide both numbers by three, it'll give you 2:5

4 0

2 years ago

Read 2 more answers