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2 years ago

HELP!!!!!!!!!!!!!!!!!!!!

Mathematics

1 answer:

Gnesinka [82]2 years ago

7 0

Answer:

Step-by-step explanation: set the two equations equal to each other. 5-2x=-4x+9 and you'd get x=2. insert 2 into the expression, and you'd get 1. to find the perimeter, a triangle has 3 sides. 1+1+1 =3

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25. The temperature was -7°F. During the

Alja [10]

Answer:

Step-by-step explanation:

6-(-7)=13

4 0

2 years ago

Write 0.5% as a decimal.

Pavlova-9 [17]

0.5% = 0.005
0.5% = 1/200

6 0

2 years ago

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twinlakes on the shelf of a covenience store lose their fresh tastines over time. we say that the taste quality is 1 when the tw

Zolol [24]

Answer:

The graph is shown below.

The time to make the taste to half is 4.265 s.

Step-by-step explanation:

Given:

Initial value of the taste is, $Q_0=1$

Therefore, the quality of taste over time 't' is given as:

$Q(t)=Q_0(0.85)^t\\Q(t)=1(0.85)^t$

Now, when the taste reduces to half, $Q=0.5$

Therefore,

$0.5=1(0.85)^t$

Taking natural log on both the sides, we get:

$\ln(0.5)=\ln(0.85)^t\\\ln(0.5)=t\ln(0.85)\\t=\frac{ln(0.5)}{\ln(0.85)}=4.265\ s$

Therefore, the time to make the taste to half is 4.265 s.

4 0

2 years ago

3.1 - 3.9n - 2n + 6 = I know it's a simple question I just keep forgetting how to do things.

Sliva [168]

Answer:

-5.9n+9.1

Step-by-step explanation:

3.1 - 3.9n - 2n + 6=

Combind like terms

Step 1: -3.9 - 2n=-5.9n

Step 2: 6 + 3.1=9.1

Combine:

-5.9n+9.1

3 0

2 years ago

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Find the length of the line segment whose endpoints are (-5,6) and (6,6)

umka21 [38]

Answer: 11 units

Step-by-step explanation:

Use the distance formula: $\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2} }$

$(x_{1}, y_{1})=(-5, 6)\\(x_{2}, y_{2})=(6, 6)\\\\\sqrt{(6-(-5)^{2}+(6-6)^{2}} =\sqrt{(11)^{2}+(0)^{2}} =\sqrt{121+0}=\sqrt{121}=11$

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2 years ago