Ask question

Ask question

All categories

3 years ago

14

A trapezoid has an area of 400 square millimeters. The bases are 14 and 36 millimeters. What is the height of the trapezoid?

2 answers:

Salsk061 [2.6K]3 years ago

5 0

400=h(14+36)
400=h50
400=50h
400/50
H=8

inysia [295]3 years ago

3 0

14+36+h=400
50+h=400
-50 -50
---------------------
h=350mm

You might be interested in

What is the highest common factor of 1,296 and 960???????????

kenny6666 [7]

The highest common factor is 48.

7 0

3 years ago

Read 2 more answers

Which is the equation of the line with slope 3 that contains point (-1, 5)?

sattari [20]

$\bf (\stackrel{x_1}{-1}~,~\stackrel{y_1}{5})~\hspace{10em} slope = m\implies 3 \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-5=3[x-(-1)] \\\\\\ y-5=3(x+1)\implies y-5=3x+3\implies y=3x+8$

5 0

3 years ago

A the fraction one half kilogram of flour is packed equally into 8 bags. How much flour is in each bag

marissa [1.9K]

Answer:

0.0625 kg per bag

or 1/16th of a kilogram per bag

Step-by-step explanation:

You'd need to divide the total amount the the number of sections.

In this case, it'd be 0.5 kg/8 bags, resulting in 0.0625 kg of flour per bag.

I hope this helps!

6 0

3 years ago

Please help with this

ycow [4]

Eg is half the length of ac

7 0

3 years ago

Read 2 more answers

3. Suppose you are testing H0 : µ = 20 vs H1 : µ > 20. The sample is large (n = 71) and the variance, σ 2 , is known. (a) Fin

LUCKY_DIMON [66]

Answer:

We reject the null hypothesis.

Step-by-step explanation:

We are given the following information in the question:

Sample size, n = 71

Population variance is known.

Level of significance, α = 0.08

$z_{\text{stat}} = 1.56$

The null and alternate hypothesis are:

$H_{0}: \mu = 20\\H_A: \mu > 20$

We use one-tailed z test to perform this hypothesis.

Formula:

$z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} } = 1.56$

Now, $z_{critical} \text{ at 0.08 level of significance } = 1.41$

Since,

$z_{stat} > z_{critical}$

We fail to accept the null hypothesis and reject it and accept the alternate hypothesis.

7 0

3 years ago