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pishuonlain [190]
2 years ago
14

Evaluate -5 + 2 - 7 (-12) show work

Mathematics
2 answers:
Advocard [28]2 years ago
4 0

Answer:

81

Step-by-step explanation:

posledela2 years ago
3 0

Answer:

√25

log(1/2)

log(8)

Step-by-step explanation:

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kyra invested $400 at 3% for 3 years . lishshawn invested $500 at 4% for 2 years calculate who earn the most interest and how mu
eimsori [14]

Answer:

Okay, so a bit of math is involved, along with steps.

Step-by-step explanation:

Kyra invested $400 at 3% for 3 years. meaning 3% of $400 is 12. 400+12=

Year 1: $412

3% of 412=12.23+412=

Year 2: $424.23

3% of 424.23=12.7+423.23=

Year 3: $435.93

Kyra made $35.93 in investments.

Lishsawn invested $500 at 4% for 2 years. Meaning, 4% of $500 is 20. 500+20

Year 1: $520

4% of 520=20.8+520

Year 2: $540.8

Lishawn made $40.8 dollars in investments. Meaning that Lishawn made $4.87 more dollars

6 0
2 years ago
Solve the inequality –3v – 2v > 35 for v.
viva [34]

Answer:

-7 > v OR vice-versa [v < -7]

Step-by-step explanation:

Combine like-terms [-5v > 35], then divide by -5.

NOTE: Since you are dividing by a negative, reverse the sign.

3 0
3 years ago
Read 2 more answers
Which inequality is true? Use the number line to help
Nuetrik [128]

There is no image posted

6 0
2 years ago
Read 2 more answers
In ΔQRS, s = 2.3 inches, ∠S=51° and ∠Q=44°. Find the area of ΔQRS, to the nearest 10th of an square inch.
postnew [5]

Answer:

Area of ΔQRS = 2.3 square inches

Step-by-step explanation:

From the given information,

<S + <Q + <R = 180^{o}

51 + 44 + <R = 180^{o}

95 + <R = 180^{o}

<R = 180^{o} - 95

    = 85^{o}

<R = 85^{o}

Applying the Sine rule, we have;

\frac{q}{SinQ} = \frac{r}{SinR} = \frac{s}{SinS}

Using \frac{r}{SinR} = \frac{s}{SinS}

\frac{r}{Sin 85} = \frac{2.3}{Sin51}

r = \frac{2.3*Sin85}{sin51}

  = 2.9483

r = 2.9 inches

Also, \frac{q}{SinQ} = \frac{s}{SinS}

\frac{q}{Sin44} = \frac{2.3}{Sin51}

q = \frac{2.3*Sin44}{Sin51}

  = 2.0559

q = 2.0 inches

From Herons formula,

Area of a triangle = \sqrt{s(s-q)(s-r)(s-s)}

s = \frac{2.3 + 2.0 + 2.9}{2}

  = 3.6

Area of ΔQRS = \sqrt{3.6(3.6-2.0(3.6-2.9)(3.6-2.3)}

                        = 2.2895

Area of ΔQRS = 2.3 square inches

8 0
2 years ago
Read 2 more answers
PLEASE HELP ME, THIS IS DUE TODAY!!!
Ivan

Answer:

i think im late...

Step-by-step explanation:

4 0
2 years ago
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