1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
GrogVix [38]
3 years ago
6

Ashley bought some books for $3 each received a discount of $6 off of her total purchase.She spent $45 after the discount.HOw ma

ny books did she but.Write an equation that could be used to answer
Mathematics
1 answer:
Bezzdna [24]3 years ago
4 0

Let x equal the number of books bought.

45 = 3x - 6

(This is the answer because $45 is the total price, each book is $3, and $6 is discounted from the actual price.)

You might be interested in
An experiment was conducted to determine the effect of children participating in a given meal preparation on calorie intake for
Shtirlitz [24]

Answer:

Step-by-step explanation: see attachment below

7 0
3 years ago
Read 2 more answers
Help please ! thank u
KonstantinChe [14]

Given:

In triangle ABC,m\angle A=138^\circ,c=19,a=29.

To find:

The m\angle C.

Solution:

According to the law of sines:

\dfrac{\sin A}{a}=\dfrac{\sin B}{b}=\dfrac{\sin C}{c}

Taking \dfrac{\sin A}{a}=\dfrac{\sin C}{c}, we get

\dfrac{\sin 138^\circ}{29}=\dfrac{\sin C}{19}

\dfrac{0.66913}{29}\times 19=\sin C

0.4383959=\sin C

Taking sin inverse on both sides, we get

\sin{-1}0.4383959=C

26.001577^\circ=C

C\approx 26^\circ

Therefore, the correct option is b.

6 0
3 years ago
Find the limit. limx→−6 √4x+45
Simora [160]
If
lim \: x -> - 6 \: \: (\sqrt{4x + 45} ) \\
= \sqrt{21}

Just replace x for (-6)
8 0
3 years ago
Assume V and W are​ finite-dimensional vector spaces and T is a linear transformation from V to​ W, T: Upper V right arrow Upper
scZoUnD [109]

Answer:

Thus for the vectors v_1, v_2, v_p there are scalars c_1, c_2, c_p not all zeros, such that c_1v_1 +c_2v_2+... +c_pv_p = 0. It means that the vectors v_1, v_2, v_p are linearly dependent in contradiction with the fact that the vectors form a basis for H. So the assumption that T(v_1), T(v_2),..., T(v_p) are linearly dependent is false, proving the required.  

Step-by-step explanation:

Let B = {v_1 ,v_2,..., v_p} be a basis of H, that is dim H = p and for any v ∈ H there are scalars c_1 , c_2, c_p, such that v = c_1*v_1 + c_2*v_2 +....+ C_p*V_p It follows that  

T(v) = T(c_1*v_1 + c_2v_2 + ••• + c_pV_p) = c_1T(v_1) +c_2T(v_2) + c_pT(v_p)

so T(H) is spanned by p vectors T(v_1),T(v_2), T(v_p). It is enough to prove that these vectors are linearly independent. It will imply that the vectors form a basis of T(H), and thus dim T(H) = p = dim H.  

Assume in contrary that T(v_1 ), T(v_2), T(v_p) are linearly dependent, that is there are scalars c_1, c_2, c_p not all zeros, such that  

c_1T(v_1) + c_2T(v_2) +.... + c_pT(v_p) = 0

T(c_1v_1) + T(c_2v_2) +.... + T(c_pv_p) = 0

T(c_1v_1+ c_2v_2 ... c_pv_p) = 0  

But also T(0) = 0 and since T is one-to-one, it follows that c_1v_1 + c_2v_2 +.... + c_pv_p = O.

Thus for the vectors v_1, v_2, v_p there are scalars c_1, c_2, c_p not all zeros, such that c_1v_1 +c_2v_2+... +c_pv_p = 0. It means that the vectors v_1, v_2, v_p are linearly dependent in contradiction with the fact that the vectors form a basis for H. So the assumption that T(v_1), T(v_2),..., T(v_p) are linearly dependent is false, proving the required.  

8 0
2 years ago
Please answer this question picture shown !!
Naddik [55]
The answer is choice D because the expression 6x^3+x^2-3 is the same as 6x^3+1x^2+0x+(-3). Notice the coefficients are 6, 1, 0, -3

The expression x-7 is in the form x-k where k = 7. This is the test root which is placed outside of the synthetic division bar as shown in choice D.
4 0
3 years ago
Other questions:
  • Find the slope between points (4, 6) and (-2, 6).
    14·1 answer
  • Please help! 3 Questions please show how you solved the problem
    9·1 answer
  • Paulo works at the United Nations. He researched what percent of the world's population lives on each continent. He surveys a sa
    6·1 answer
  • The explicit formula for a sequence is
    14·1 answer
  • A rug had a name of 2 feet and a total area of 10 feet what is the width of the rug
    12·2 answers
  • Type the number to the left of the rational number in the box to the point it represents on the number line.
    13·1 answer
  • What is the coefficient of x in 4x/5 a)1/5 b.5 c.4/5 d.4 e.-0.8
    8·2 answers
  • Which statement about the graph is true? On a coordinate plane, a line goes through points (0, 2), (2, 3), (4, 4), (6, 5). The g
    14·2 answers
  • What is the product (7x10^-5) (5x10^-8)
    9·1 answer
  • 2(2t+4)=3/4(24−8t) please help
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!