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4 years ago

Can you please try to help me out :(

Mathematics

2 answers:

irina [24]4 years ago

6 0

Answer:

the first answer is Port cities.

Step-by-step explanation:

KengaRu [80]4 years ago

3 0

Boston and New Orleans were port cities because they were based near water - and the establishment of the thirteen colonies. It wasn’t nationalism because that was associated with the Spanish.

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A farmhouse shelters 11 goats and ducks.Altogether,there are 34 legs.How many of each animal are there?

Art [367]

There are 4 ducks and 4.5 goats

6 0

3 years ago

Point e,d, and h are the midpoints of the sides of the triangle TUV. UV = 80, TV=100, and HD = 80

antiseptic1488 [7]

Answer:

Step-by-step explanation:

We will use to midsegment theorem to solve this question.

Midsegment theorem,

Segment joining the midpoints of two sides of a triangle, is parallel and and measure the half of the the third side.

7). HE is the midsegment.

HE = $\frac{1}{2}(VU)$

= $\frac{1}{2}\times (80)$

= 40

8). ED = $\frac{1}{2}\times (TV)$

= $\frac{1}{2}(100)$

= 50

9). HD = $\frac{1}{2}(TU)$

TU = 2(HD)

= 2(80)

= 160

10). TE = $\frac{1}{2}(TU)$

= $\frac{1}{2}\times 160$

= 80

4 0

3 years ago

A tire manufacturer is interested in testing the fuel economy for two different tread patterns. Tires of each tread type are dri

Minchanka [31]

Using the t-distribution, it is found that the 99% confidence interval for the difference is (0.058, 3.462).

We are given the standard deviation for the samples, hence, the t-distribution is used to solve this question.

The standard errors are given by:

$s_A = \frac{1.79}{\sqrt{18}} = 0.4219$

$s_B = \frac{1.95}{\sqrt{18}} = 0.4596$

For the distribution of differences, the mean and the standard error are given by:

$\overline{x} = \mu_A - \mu_B = 23.95 - 22.19 = 1.76$

$s = \sqrt{0.4219^2 + 0.4596^2} = 0.6239$

The interval is given by:

$\overline{x} \pm ts$

The critical value for a two-tailed 99% confidence interval with 18 + 18 - 2 = 34 df is t = 2.7284.

Then:

$\overline{x} - ts = 1.76 - 2.7284(0.6239) = 0.058$

$\overline{x} + ts = 1.76 + 2.7284(0.6239) = 3.462$

The 99% confidence interval for the difference is (0.058, 3.462).

For more on the t-distribution, you can check brainly.com/question/16162795

3 0

3 years ago

A fence is shown on a blueprint and has a sides of leg the 17cm,18cm,18cm and 19cm.If themail scale on the blueprintis2cm:7cm,wh

Phoenix [80]

Ok so 2cm on the blueprint is actually 7cm in real life
2:7=1:3.5
for every cm on the map, it is 3.5 times that in real life

so total legnths
17 times 3.5+18 times 3.5+18 times 3.5+19 times 3.5=
59.5+63+63+66.5=
252

answer is 252cm

7 0

4 years ago

Read 2 more answers

-20-20+15 Help pleaseeee

Irina-Kira [14]

Answer:

-25

Step-by-step explanation:

hope this helps

4 0

3 years ago

Read 2 more answers