Anthony needs some kitchen

Mathematics

1 answer:

Kay [80]3 years ago

7 0

$142.56 cuz you add the total which is 90+42=132
Then add 132 + 8% equals 142.56

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Help me please ill mark brainliest please be correct

Vedmedyk [2.9K]

The answer to this is 5

8 0

3 years ago

I need help with this If you help me we can talk ;)

nlexa [21]

Answer:

The answers are given below.

Step-by-step explanation:

a) The range for Y - axis should be $ 12,000 to $ 19,500 while taking $ 500 denoting a unit length on the Y - axis. So, it will be in the scale ratio of ,

500 : 1 .

b)The step-size of the Y-axis can be taken to be 5 units per step, i. e., the marks are to be set at, 0 unit, 5 unit, 10 unit etc.

c) The range for X-axis should be, 0 to 10 years taking '0' mark on the base year which is the year, 10 years before from now and 1 year should be denoted by a unit length of X - axis. So, it will be in the scale ratio of 1 : 1 .

d)The step-size of the X-axis can be taken to be 2 units per step, i. e., the marks are to be set at 0 unit, 2 unit, 4 unit etc.

7 0

3 years ago

In RST, RS = 7, RT = 10, and ST = 8. Which angle of RST has the smallest measure? A T BCANNT BE DETERMINDED C R D S

Scrat [10]

Answer:

Correct answer is option A. T

Step-by-step explanation:

Given that

In a $\triangle RST$ , RS = 7, RT = 10, and ST = 8.

To find:

Smallest angle = ?

Solution:

We can use cosine rule here to find the angle.

Formula for cosine rule:

$cos B = \dfrac{a^{2}+c^{2}-b^{2}}{2ac}$

Where

a is the side opposite to $\angle A$

b is the side opposite to $\angle B$

c is the side opposite to $\angle C$

Using the cosine rule:

$cos T = \dfrac{ST^{2}+RT^{2}-RS^{2}}{2\times ST \times RT}\\\Rightarrow cos T = \dfrac{8^{2}+10^{2}-7^{2}}{2\times 8 \times 10}\\\Rightarrow cos T = \dfrac{64+100-49}{160}\\\Rightarrow cos T = \dfrac{115}{160}\\\Rightarrow \angle T = cos^{-1}(0.71875)\\\Rightarrow \angle T = 44.05^\circ$

Now, let us use Sine rule to find other angles:

$\dfrac{a}{sinA} = \dfrac{b}{sinB} = \dfrac{c}{sinC}$

$\dfrac{RS}{sinT} = \dfrac{ST}{sinR} = \dfrac{RT}{sinS}\\\Rightarrow \dfrac{7}{sin44.05} = \dfrac{8}{sinR} = \dfrac{10}{sinS}\\\Rightarrow \dfrac{7}{0.695} = \dfrac{8}{sinR} = \dfrac{10}{sinS}\\\Rightarrow sin R = \dfrac{8 \times 0.695}{7}\\\Rightarrow R = 52.58^\circ$