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deff fn [24]
3 years ago
8

Help me pleaseeee :/

Mathematics
2 answers:
BartSMP [9]3 years ago
8 0
1.3+-2.4= -1.1 hope I helped :)
olchik [2.2K]3 years ago
8 0
I think the answer is :1.1
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Please help me now ​
aivan3 [116]

Answer:

Step-by-step explanation:

C:  Side-Angle-Side

5 0
3 years ago
A colony of bacteria is growing exponentially according to the function below, where t is in hours. About how many hours will it
Ivenika [448]
The function is:
B ( t ) = 4 * e^(0.8 t)
4 * e^(0.8 t) = 400
e^(0.8 t) = 400: 4
e^(0.8 t) = 100   / ln
ln e^(0.8 t) = ln 100  ( and since: ln e = 1 and ln e^x = x * ln e )
0.8 t = 4.6
t = 4.6 : 0.8 = 5.76 ≈ 6
Answer:
D ) 6 hours.
4 0
3 years ago
Find the missing dimension.
Alecsey [184]

Answer:

2 m

Step-by-step explanation:

Here the area and the lengths of the two parallel sides of this trapezoid are given:

A = 7m^2, b1 = 3 m and b2 = 4 m.  What's missing is the width of the trapezoid.

First we write out the formula for the area of a trapezoid:

       b1 + b2

A = --------------- * w, where w represents the width of the figure.

             2

We need to solve this for the width, w.  Multiplying both sides of the above equation by

     2

------------

b1 + b2

results in

 2A

------------ = w

b1 + b2

Substituting 7 m^2 for A, 3 m for b1 and 4 m for b2 results in

        2(7 m^2)           14 m^2

w = ------------------ = ---------------- = 2 m

        (3 + 4) m             7 m

The missing dimension is the width of the figure.  This width is 2 m.

4 0
3 years ago
What is the surface area of the rectangular pyramid shown? 59.5 cm2 63 cm2 75.5 cm2 99 cm2
arsen [322]

Answer:

Option D.

Step-by-step explanation:

In this question figure of pyramid is attached below the question .

Surface area of the rectangular pyramid :

Area of the Base = Length × Width

                            = 10 × 2 = 20 cm²

Area of Lateral #1 = \frac{1}{2}(P)(L)

                             = \frac{1}{2}(10\times6.3)

                             = 31.5 cm²

Area of Lateral #2 = \frac{1}{2}(8\times 2)

                               = \frac{16}{2}

                               = 8 cm²

Surface area of the pyramid = 20 + 2(31.5) + 2(8)

                                                = 20 + 63 + 16

                                                = 99 cm²

Surface area of the pyramid is 99 cm²

7 0
3 years ago
Read 2 more answers
jane works 40 hours per week. due to illness , jane worked 3/5 of her scheduled hours. how many hours did jane work last week?​
Hunter-Best [27]

Answer:

24

Step-by-step explanation:

40/1 * 3/5 = 120/5

120/5 simplified = 24

6 0
2 years ago
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