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3 years ago

What is the slope of this graph? a. 4 b. -4 c. -1/4 d. 1/4

Mathematics

1 answer:

kykrilka [37]3 years ago

6 0

The answer is -4 i just did the test

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Help me............................

nevsk [136]

19. A
20. C
21. C
22. B
23. B
24. C

4 0

2 years ago

Need help!! You can buy 10 yogurts for $6.50. How much would it cost for nine yogurts!?

ahrayia [7]

To solve this problem, you should find the rate ---> cost per yogurt (cost/yogurt)

$6.50/10 yogurts = $0.65/yogurt

It costs $0.65 per yogurt, so you can multiply 9 by $0.65 to find the total cost of 9 yogurt.

9(0.65) = $5.85

6 0

2 years ago

From the top of a vertical cliff 50 m high, the angle of depression of an object that is level with the base of the cliff is 70°

Svetlanka [38]

Answer:

The distance of the object from the base of cliff is 18.24 meters

Step-by-step explanation:

Given as :

The height of the vertical cliff = h = 50 meters

The distance of the object from the base of cliff = x meters

Let The angle of depression of object that level with cliff base = Ф = 70°

<u>Now, from figure</u>

Tan angle = $\dfrac{\textrm perpendicular}{\textrm base}$

I.e TanФ = $\dfrac{\textrm AB}{\textrm OA}$

Or, TanФ = $\dfrac{\textrm h}{\textrm x}$

Or, Tan 70° = $\dfrac{\textrm 50 meters}{\textrm x meters}$

Or, 2.74 = $\dfrac{\textrm 50}{\textrm x}$

∴ x = $\dfrac{\textrm 50}{\textrm 2.74}$

I,e x = 18.24 meters

So, The distance of the object from the base of cliff = x = 18.24 meters

Hence,The distance of the object from the base of cliff is 18.24 meters Answer

5 0

3 years ago

The radioactive substance uranium-240 has a half-life of 14 hours. The amount

k0ka [10]

<h2>Answer:</h2>

See analyris

<h2>Step-by-step explanation:</h2>

$Hlug\ in\ the\ value\ of \left.\ t.\right\}$

$The\ infital\ ampunt\ in\ the\ sample:$

$t=0_{-1}\ \ \ \ \ f(t)=39\omega\bullet(\frac{1}{2})^\frac{0}{14}$

$=3900\ g.$

$Ater\ bo\ busis.$

$t=6,\ \ \ \ \ A(t)=2900\times(\frac{1}{2})^\frac{60}{14}$

$=3900\times(\frac{1}{2})^\frac{30}{7}$

$\approx 209.$

<em>I hope this helps you</em>

6 0

2 years ago

What is the length of a diagonal of a rectangle 9m long and 5m wide?

Zarrin [17]

Pythagorean Theorem: a^2 + b^2 = c^2

(5)^2 + (9)^2 = c^2
25 + 81 = c^2
106 = c^2
c = square root of 106

Length of a diagonal of a rectangle is square root of 106.

8 0

3 years ago