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3 years ago

PLEASE HELP! URGENT!

Mathematics

2 answers:

Anastaziya [24]3 years ago

8 0

Answer:

Step-by-step explanation:

dedylja [7]3 years ago

4 0

The largest positive value in domain is 2

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Claire invested $2,400 in an account paying an interest rate of 3.5% compounded monthly. Assuming no deposits or withdrawals are

nevsk [136]

Answer:

18 years (to the nearest year)

Step-by-step explanation:

Compound interest formula:

$A=P(1+\frac{r}{n})^{nt}$

where A is amount, P is principal, r is interest rate (decimal format), n is the number of times interest is compounded per unit 't', and t is time

Given:

A = 4490
P = 2400
r = 3.5% = 0.035
n = 12

$\implies 4490=2400(1+\frac{0.035}{12})^{12t}$

$\implies \dfrac{449}{240}=\left(\dfrac{2407}{2400}\right)^{12t}$

$\implies \ln\dfrac{449}{240}=\ln\left(\dfrac{2407}{2400}\right)^{12t}$

$\implies \ln\dfrac{449}{240}=12t\ln\left(\dfrac{2407}{2400}\right)$

$\implies t=\dfrac{\ln\dfrac{449}{240}}{12\ln\left(\dfrac{2407}{2400}\right)}$

$\implies t=17.92277136...$

Therefore, it would take 18 years (to the nearest year) for the account to reach $4,490

5 0

3 years ago

I need help with all problems pls. i don't know for the first one.

lara [203]

Answer: the first square has an area of 108 and the second square has an area of 60.

Step-by-step explanation:

12 x 9 =108

10x6= 60

5 0

3 years ago

Find the length of the missing side (nearest tenth). 15 in 11 in

Ganezh [65]

15^2 + 11^2=c^2
18. 6 in or 19 in

5 0

3 years ago

PLZ HELP ASAP. WILL GIVE BRAINLIEST!!!

Flauer [41]

ACD,DCE. 1 and 8, 6 and 7

6 0

3 years ago

11. Find the product: (50z + 20)(10z + 4) ( 1 ) 12. Find the product: (88a + 80)(8a + 8) ( 1 ) 13. Find the product: (40y + zy)(

Vika [28.1K]

Answer:

11. $500z^{2} +400z+80$

12. $704a^2 + 1344a + 640$

13. $160y^2 + 44zy^2 + z^2y^2$

Step-by-step explanation:

11. $(50z + 20)(10z + 4) = ?$

Using Formula:

$(a+b) (c+d) = a(c+d)+b(c+d)$

$50z(10z+4) + 20(10z + 4) = \\\Rightarrow 500z^{2} + 200 z+200z+80\\\Rightarrow 500z^{2} +400z+80$

12. $(88a + 80)(8a + 8) = ?$

Using Formula:

$(a+b) (c+d) = a(c+d)+b(c+d)$

$\Rightarrow 88a(8a+8) + 80(8a + 8)\\\Rightarrow 704a^2 + 704a + 640a + 640\\\Rightarrow 704a^2 + 1344a + 640$

13. $(40y + zy)(4y + zy) = ?$

Using Formula:

$(a+b) (c+d) = a(c+d)+b(c+d)$

$\Rightarrow 40y(4y + zy) + zy(4y + zy)\\\Rightarrow 160y^2 + 40zy^2 + 4y^2z + z^2y^2\\\Rightarrow 160y^2 + 44zy^2 + z^2y^2\\$

7 0

3 years ago