3 years ago

Giving 45 points! I need help!

Mathematics

1 answer:

Monica [59]3 years ago

8 0

where is the question?

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A triangle has a perimeter of 18 inches. If one side has length 8 inches, find the length of the shortest side if the other leng

aalyn [17]

$a,b,c-\ sides\ of\ triangle\\\\a+b+c=18\ inches\\\\a=8inch\\\\\frac{b}{c}=\frac{2}{3}\\\\3b=2c\ \ --->b=\frac{2c}{3}\\\\8+\frac{2c}{3}+c=18\ |*3\\\\24+2c+3c=54\\\\5c=54-24\\\\5c=30\\\\c=\frac{30}{5}=6\\\\Length\ of\ shorter\ side\ is\ equal\ to\ 6\ inches.$

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3 years ago

(x+4) (x+7) find product

nataly862011 [7]

Answer:

x2+11x+28

Step-by-step explanation:

Thus, (x+7)(x+4) multiplies out to x2+4x+7x+28, which can be simplified to

x2+11x+28

6 0

3 years ago

Read 2 more answers

I'll give brainliest -4n(5n+6)-5(3+3n)

motikmotik

Answer:

-20n^2-39n-15

Step-by-step explanation:

8 0

2 years ago

What should i do now please help me

m_a_m_a [10]

Answer:

x=24

Step-by-step explanation:

Here, you need to make proportion and find x.

12:16=18:x

We multiply 12 by x and 16 by 18:

12x=288

Divide by 12 both sides :

x=24

6 0

3 years ago

Find the indicated area under the curve of the standard normal distribution; then convert it to a percentage and fill in the bl

galben [10]

Answer:

95%

Step-by-step explanation:

About 95% of the area is within two standard deviation in standard normal distribution. This can be explained by finding the probability within 2 standard deviation using standard normal distribution.

P(z1<Z<z2)=P(-2<Z<2)

P(-2<Z<2)=P(-2<Z<0)+P(0<Z<2)

P(-2<Z<2)=0.4772+0.4772

P(-2<Z<2)=0.9544

Thus, About 95% of the area is between z2 and z2

4 0

3 years ago