3 years ago

Please help Solve the inequality. -1 < 2x + 5 < 4 [?] sxs H

Mathematics

1 answer:

ser-zykov [4K]3 years ago

3 0

Answer:

-1-5<2x+5-5<4-5

-6<2x<-1

-3<x<-1/2

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3 years ago

What is the height of a container if the volume is 56.52 in.³ in the radius is 1.5 inches

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3 years ago

Phyllis invested 50000 dollars, a portion earning a simple interest rate of 5 percent per year and the rest earning a rate of 7

Elodia [21]

Answer:

The amount invested at 5% was $39,000 and the amount invested at 7% was $11,000

Step-by-step explanation:

we know that

The simple interest formula is equal to

$I=P(rt)$

where

I is the Final Interest Value

P is the Principal amount of money to be invested

r is the rate of interest

t is Number of Time Periods

Let

x-----> the amount invested at 5%

50,000-x -----> the amount invested at 7%

$t=1\ year\\ I=\$2,720\\r_1=0.05\\r_2=0.07\\P_1=\$x\\P_2=\$(50,000-x)$

substitute in the formula above

$2,720=x(0.05*1)+(50,000-x)(0.07*1)$

solve for x

$2,720=0.05x+3,500-0.07x$

$0.07x-0.05x=3,500-2,720\\0.02x=780\\x=\$39,000$

$(50,000-x)=\$11,000$

therefore

The amount invested at 5% was $39,000 and the amount invested at 7% was $11,000

5 0

3 years ago

2(2x-1)-4(3x+1)=2 how to solve this

DiKsa [7]

If you need to find x. The answer is x=1/-2. Hope this helps!

7 0

3 years ago

How do you get 1.8 from<img src="https://tex.z-dn.net/?f=f%282%29%3D%5Cfrac%7B2%7D%7B1%2Be%5E%7B-%282%29%7D%20%7D" id="TexFormul

Nataliya [291]

Answer:

see explanation

Step-by-step explanation:

$\frac{2}{1+e^{-2} }$ ← evaluate $e^{-2}$ using calculator

= $\frac{2}{1+0.135}$

= $\frac{2}{1.135}$

= 1.762.....

≈ 1.8 ( to 1 dec. place )

4 0

2 years ago