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horsena [70]
2 years ago
8

Find angle, a.  Show the working mentioning the angle properties in each step.​

Mathematics
1 answer:
svetoff [14.1K]2 years ago
5 0

Answer:

a°=45°

Step-by-step explanation:

SOLUTION,

→a°=45°[ Being alternate angles]

→Hence,a°=45°

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At age 16, Estelle weighed 110lbs.
Cloud [144]

Answer:

Her weight is increase by 18 lbs over past five years and the slope is 3.6 lbs per year.

Step-by-step explanation:

Given information: Estelle weight is

At age 16 =  110 lbs

At age 21 = 128 ibs

Increase in her weight over the past 5 years is the difference of weight at age 21 and at age 16.

Increase in her weight over the past 5 years = 128 - 110 = 18

Her weight is increase by 18 lbs over past five years.

Let x=age and y=weight, then the weight function passes through the points (16,110) and (21,128).

If a line passes through two points (x_1,y_1) and (x_2,y_2),  then the slope of the line is

m=\frac{y_2-y_1}{x_2-x_1}

Using the above formula we get

m=\frac{128-110}{21-16}

m=\frac{18}{5}

m=3.6

Therefore the slope is 3.6 lbs per year.

7 0
3 years ago
Marko terzo please help
Ksivusya [100]

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8 0
3 years ago
PLS HELP MEE ASAP 1 MIN LEFT HELPP!!!!!!!!!
artcher [175]

Answer: BC = 5.83

Step-by-step explanation:

Luckily, the triangle is placed on the graph nicely so we can count the legs of the triangle:

AB = 5

AC = 3

BC = ?

To find BC, we can simply use the Pythagorean Theorem:

a^{2}+b^{2}=c^{2}

5^2 + 3^2 = c^2

25 + 9 = c^2

34 = c^2

Now square root to find c, or BC.

\sqrt{34}=\sqrt{c^{2} }

c = 5.83 (rounded by nearest hundredth)

4 0
3 years ago
Y-2x + 1<br> How to do it
patriot [66]

Answer:

It is in simplest form so you leave it like that

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
A certain marathon has had a wheelchair division since 1977. An interested fan wondered who is​ faster: the​ men's marathon winn
Dimas [21]

Answer:

A. The distribution of sample means of the differences will be approximately normal if there are at least 30 years of data in the sample​ and/or if the population of differences in winning times for all years is normal.

Step-by-step explanation:

In other to perform a valid paired test, one of the conditions required is that, data for both groups must be approximately normal. To attain normality, the population distribution for the groups must be normal or based on the central limit theorem, the sample size must be large enough, usually n > 30. Hence, once either of the two conditions are met, the paired sample will be valid.

8 0
3 years ago
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