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3 years ago

Without graphing, tell if the coordinate (5,3) is a solution to

Mathematics

1 answer:

uranmaximum [27]3 years ago

5 0

Tru because she say that siry

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Kim is reading a book with 380 pages. She read 20 pages each day until she reached Part 2 of the book. Part 2 of the book is 160

d1i1m1o1n [39]

If you divide 380 by 20, you get 19. To check this, multiply 20 x 19 to see 380. Hope this helps :D

6 0

3 years ago

Read 2 more answers

Find the value of b. Round your answer to the nearest tenth.

marissa [1.9K]

Answer:

Side CA = 7.8

Step-by-step explanation:

<u>Given:</u>

Acute angled $\triangle ABC$ .

$\angle B =40^\circ$

AB = 10

BC = 12

We can use cosine rule here to find the side AC = b

<em>Formula for cosine rule: </em>

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

Where

a is the side opposite to $\angle A$

b is the side opposite to $\angle B$

c is the side opposite to $\angle C$

$cos 40 = \dfrac{12^{2}+10^{2}-b^{2}}{2\times 12\times 10}\\\Rightarrow cos 40 = \dfrac{144+100-b^{2}}{240}\\\Rightarrow 0.77 = \dfrac{244-b^{2}}{240}\\\Rightarrow 244-b^{2} = 0.77 \times 240\\\Rightarrow 244-b^{2} = 183.85\\\Rightarrow 244-183.85 = b^{2}\\\Rightarrow b^2 = 60.15\\\Rightarrow b = 7.76$

To the nearest tenth <em>b = 7.8</em>

8 0

3 years ago

Help me please I'm stuck

Licemer1 [7]

Answer:

I think its C

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

NO LINKS OR ASSESSMENT!!!<br><br>Part 1: Domain and Range of Graphs<br>

lora16 [44]

Domain is the set of input values
Range is the set of output value
Function is passes the vertical line test

<u>Domain:</u>

- 5 < x < 5 or x ∈ (-5, 5)

<u>Range:</u>

-5 < y < 5 or y ∈ (-5, 5)

<u>Function:</u>

YES - passes the vertical line test

<u>Domain:</u>

- 5 < x ≤ 5 or x∈ (-5, 5]

<u>Range:</u>

-3 < y ≤ 2 or y ∈ (-3, 2]

<u>Function:</u>

YES - passes the vertical line test

<u>Domain:</u>

- 5 < x < 3 or x∈ (-5, 3)

<u>Range:</u>

0 < y < 4 or y ∈ (0, 4)

<u>Function:</u>

N0- doesn't pass the vertical line test

6 0

2 years ago

beks73 [17]

A, 71-32 is equal to 39
C, 85-46 is also equal to 39

3 0

1 year ago