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3 years ago

WILL GIVE YOU THE BRAINLIST IF YOU ARE RIGHT!!! Is this true or false? This graph represents a proportional relationship.

Mathematics

2 answers:

makkiz [27]3 years ago

7 0

Yes it is true proportional relations on a graph have a straight line on it

butalik [34]3 years ago

6 0

I'll just tell yo this. If the graph has a STRAIGHT line going from 0. completely strait....going up then it is.

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Find the product -3,-4.-2.5

Assoli18 [71]

Answer:

$-30$

Step-by-step explanation:

$-3(-4)(-2.5)$

Apply rule $-(-a) = a$

$=-3*4*2.5$

Multiply the numbers: $3*4*2.5=30$

$=-30$

6 0

3 years ago

Taj had 15 books. He gave some of the books to his friends.

deff fn [24]

The answer is B six books, hope this helps!

7 0

3 years ago

Read 2 more answers

PLEASE HELPPPPPP<br> The perimeter is 50 ft and the length is 15 ft.<br> What's the width?

SVEN [57.7K]

Answer:

Step-by-step explanation:

I assume it's a rectangle, therefore:

P = 50

a = 15 ft

b = ?

P = 2a + 2b

50 = 2 * 15 + 2b

50 = 30 + 2b

2b = 50 - 30

2b = 20

b = 10

8 0

3 years ago

Show that if S1 and S2 are subsets of a vector space V such that S1 c S2 then span(S1) c span(S2). In particular, if S1 c S2 the

klemol [59]

Answer:

See proof below

Step-by-step explanation:

Assume that V is a vector space over the field F (take F=R,C if you prefer).

Let $x\in span(S_1)$ . Then, we can write x as a linear combination of elements of s1, that is, there exist $v_1,v_2,\cdots,v_k \in S_1$ and $a_1,a_2,\cdots,a_k\in F$ such that $x=a_1v_1+a_2v_2+\cdots+a_kv_k$ . Now, $S_1\subseteq S_2$ then for all $y\in S_1$ we have that $y\in S_2$ . In particular, taking $y=v_j$ with $j=1,2,\cdots,k$ we have that $v_j\in S_2$ . Then, x is a linear combination of vectors in S2, therefore $x\in span(S_2)$ . We conclude that $span(S_1)\subseteq span(S_2)$ .

If, additionally $S_2\subseteq S_1$ then reversing the roles of S1 and S2 in the previous proof, $span(S_2)\subseteq span(S_1)$ . Then $span(S_1)\subseteq span(S_2)\subseteq span(S_1)$ , therefore $span(S_1)=span(S_2)$ .

5 0

3 years ago

Can someone help me with this? Preferably with an explanation on how to actually figure this out. Thank you!

zhannawk [14.2K]

Answer:

2^-4, 1/16, (1/2)^4

There is a rule with exponents, if you are dividing two exponents you subtract the first exponent from the other to simplify it, also meaning it's equivalent.

So in this case 5-9 = 2^-4

The others were found by evaluation.

5 0

3 years ago