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3 years ago

What ratio in lengths describe a fourth?

Mathematics

1 answer:

ladessa [460]3 years ago

6 0

It’s E because that’s basically 1/4

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Math -8/7 + (-17/36)

svp [43]

Answer:

-162/252

Step-by-step explanation:

-8/7 + (-17/36)

-288+119/252

6 0

2 years ago

Suppose that scores on a test are normally distributed with a mean of 80 and a standard deviation of 8. Answer the questions bel

Studentka2010 [4]

Answer:

(a) 84.2

(b) 10.6

Step-by-step explanation:

To solve this questions we can use the standardization formula, where we know that if $X\sim N(\mu,\sigma^2)$ then $Z=\frac{X-\mu}{\sigma} \sim N(0,1)$

So for

(a) we know that the z score for the 70th percentile is 0.524, so using the normalization equation we have

$\frac{X-\mu}{\sigma}=0.524$

$X=0.524*8+80=84.192$

(b) We can procede as above and get

$P(X$

3 0

3 years ago

Read 2 more answers

Given that rectangle MNOP ~ rectangle STUV, what is the length of ¯¯¯¯¯¯ T U ?Rectangle M N O P is shown with segment N O labele

Sergeu [11.5K]

Answer:

$TU = 15$

Step-by-step explanation:

Given

$\square MNOP \simeq\ \square STUV$

$NO = 10$

$OP = 4$

$TU = x$

$UV = 6$

Required

Determine the length of TU (i.e. x)

Because both shapes are similar, then the following equivalent ratios exist:

$NO : OP = TU : UV$

Substitute values for NO, OP, TU and UV

$10 : 4 = x : 6$

Represent as fraction

$\frac{10 }{ 4 } = \frac{x }{ 6}$

Multiply both sides by 6

$6 * \frac{10 }{ 4 } = \frac{x }{ 6} * 6$

$6 * \frac{10 }{ 4 } = x$

$x = 6 * \frac{10 }{ 4 }$

$x = \frac{60 }{ 4 }$

$x = 15$

Hence:

$TU = 15$

7 0

3 years ago

Write in standard form 3+4i/2-6i

ziro4ka [17]

The answer would be 3-4i

4 0

3 years ago

You will need 50% of a packet of pasta to make a meal for 4 people. How

skelet666 [1.2K]

you would use 1.5 packets, but that requires 2 packets.

1 packet in total would feed 8 people, and half of another would feed an extra 4. 4+8 = 12.

7 0

3 years ago

Read 2 more answers