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Tom [10]
4 years ago
11

Sandra has only Re 1 and Rs 2 coins with her. If the total number of coins that she has is 50 and

Mathematics
1 answer:
Ostrovityanka [42]4 years ago
3 0

I hope this helps you. Plz mark me as the brainliest.

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Albert receives $0.30 per pound for 1 to 49 pounds of glass bottles he recycles. He receives $0.40
Marina86 [1]

Answer:

Yes

Step-by-step explanation:

The amount of money Albert receives is described by the expression

y = \begin{cases}0.30x  & \quad \text{if } 0 \leq x \leq 49 \\0.40x & \quad \text{if } x > 50\\\end{cases}

The graph is shown below.

To determine if the relation is a function,  we can use the vertical line test:  

If a vertical line crosses the graph more than once in any location, the relation is not a function.

We see that at no place will a vertical line intersect the graph more than once.

The relation is a function.

3 0
4 years ago
Can anyone solve 9, 10, 11, 12, and 13 I'm stuck on those problems, I already solved 14, 15, and 16 on paper.
ddd [48]

Answer:

9. x>-4 or x≥1

10. a<2 or a≥-5

11. v≤7 or v≥-4

12. k≥5 or k<8

13. n>6.8 and n≤9

Step-by-step explanation:

9. -2x-7>1

-2x>8

x>-4

x-2≥-1

x≥1

10.a/-2 <-1

a<2

-4a+3≥23

-4a≥20

a≥-5

11. 6v+38≤-4

6v≤-42

v≤7

2(v+3)≥-2

2v+6≥-2

2v≥-8

v≥-4

12. 4(1-k)≥-16

4-4k≥-16

-4k≥-20

k≥5

7-6k<-41

-6k<-48

k<8

13. 10n-9>-59

10n>-68

n>6.8

n-6≤3

n≤9

4 0
2 years ago
X =x=x, equals <br> ^\circ <br> ∘<br> degrees
Andrej [43]

Step-by-step explanation:

x = 145°

we don't even need the upper parallel line with the 35° angle.

it is simply based on the fact that the angles on both sides of 2 intersecting lines have to be the same (just left-right mirrored).

3 0
2 years ago
Based only on the information given in the diagram, it is guaranteed that JKL ~ WXY.
Alika [10]

Answer:

Option A True

Step-by-step explanation:

we know that

The sum of the internal angles of  the triangle is equal to 180\°

<u>In the triangle JKL</u>

m∠L=180\°-90\°-27\°=63\°

so

The measurements of the angles of triangle JKL are 27\°-90\°-63\°

<u>In the triangle WXY</u>

m∠W=180\°-90\°-63\°=27\°

so

The measurements of the angles of triangle WXY are 27\°-90\°-63\°

therefore

Triangle JKL and triangle WXY are similar by AAA ( The AAA postulate states that if you can prove that all three angles of two triangles are congruent, you can prove the two triangles are similar)

6 0
3 years ago
Read 2 more answers
The 57th electron in an atom's electron configuration will be placed into which orbital? 5d 6d 4f 6p
cupoosta [38]
4F because when you go through the sequence that is what you get
7 0
3 years ago
Read 2 more answers
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