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4 years ago

Can i get some help thanks

Mathematics

1 answer:

inna [77]4 years ago

7 0

Answer:

9300 maybe

Step-by-step explanation:

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Which expressions are equivalent to 64'? Check all that apply. 034 028

umka21 [38]

Answer:

oop hi

Step-by-step explanation:

6 0

3 years ago

Given: AACD is isosceles with angle D as the vertex angle. B is the midpoint of AC. AB= x + 5, BC= 2x - 3, and CD = 2x + 6. Find

Marina86 [1]

Answer:

70 units

Step-by-step explanation:

Given triangle ACD

AB = BC
CD = 2x + 6
AB = x + 5
BC = 2x - 3
P = ?

Perimeter is sum of the side lengths:

P = AD + CD + AC

AD = CD because D is vertex and the triangle is isosceles

AC = AB + BC because B is midpoint of AC

Then P is:

P = 2(2x + 6) + (x + 5) + (2x -3) = 4x + 12 + x + 5 + 2x - 3 = 7x + 14

Find the value of x from the AB = BC:

x + 5 = 2x - 3
2x - x = 5 + 3
x = 8

Then find the value of P:

P = 7*8 + 14 = 56 + 14 = 70 units

3 0

3 years ago

When money is spent on goods and services, those who receive the money also spend some of it. The people receiving some of the t

Bad White [126]

Solution :

If $S_n$ is the total spending generated after n transactions, then $a_n$ is the spending generated during the n-th transaction. Since the government spends D dollars, then $a_1$ = D.

Then the second person will receive D dollars and spend $D_c$ dollars. Therefore, $a_2=D_c$ . The next person will receive $D_c$ dollars, which means they are spending $a_3 = (D_c)c = Dc^2$ dollars. Therefore,

$a_1 = D$

$a_2=D_c$

$a_3 = Dc^2$

$a_4 = (Dc^2)c= Dc^3$

....

$a_n=Dc^{n-1}$

∴ $S_n=a_1+a_2+a_3+....+a_n$

$S_n = D+Dc+Dc^2+Dc^3+...+Dc^{n-1}$

$S_n= D(1+c+c^2+...+c^{n-1})$

$S-n=D . \frac{1-c^n}{1-c}$

5 0

3 years ago

Let f(x)=4x^2-2 f(t+1)

dusya [7]

Answer:

$f(x) = 4 {x}^{2} - 2 \\ f(t + 1) = 4 {(t + 1)}^{2} - 2 \\ = 4( t + 1)(t + 1) - 2 \\ = 4( {t}^{2} + 2t + 1) - 2 \\ = 4 {t}^{2} + 8t + 4 - 2 \\ = 4 {t}^{2} + 8t + 2$

I hope I helped you^_^

4 0

3 years ago

Leora is finding the length of a horizontal line segment on a coordinate grid She subtracted the x coordinates and got

Natalka [10]

Answer:

Take the absolute value of -17.5

Step-by-step explanation:

6 0

3 years ago

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