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rewona [7]
4 years ago
12

- 2/5 x -1 1/4 please help thank you

Mathematics
1 answer:
Tanya [424]4 years ago
8 0
The answer is 11/10 or 1.1. 
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A square pyramid has a slant height of 15 cm. A side length of the base is 20 cm. What is the surface area of the pyramid? Enter
nevsk [136]

Answer:

1000 cm2

Step-by-step explanation:

Pretty sure

4 0
3 years ago
5. What is the area of a trapezoid with the following measurements? Base 1=15
zaharov [31]

Answer:

129.5 cm²

Step-by-step explanation:

The area (A) of a trapezoid is calculated as

A = \frac{1}{2} h(a + b)

where h is the height and a, b the parallel bases

Here h = 7, a = 15 and b = 22 , thus

A = \frac{1}{2} × 7 × (15 + 22)

   = 0.5 × 7 × 37

   = 129.5

3 0
4 years ago
Are the bases of a trapezoid perpendicular?
melomori [17]
For a shape to be perpendicular it must intersect and have right angles at 90 degrees. Trapezoids do not have this but acute and obtuse angles at their intersections. So the answer is no, the bases are not perpendicular. <span />
4 0
4 years ago
Read 2 more answers
A smart phone plan has a monthly base fee that includes 5 gigabytes of data. An overage charge is applied when the data usage ex
Flura [38]

Answer:

B The cost, in dollars, for each additional gigabyte used.

Step-by-step explanation:

C = 59 + 15(g − 5)

when g=5, C=59 where it is the monthly cost

when g=6, c=59 +15, interpret that each additional gigabyte used will increase the cost for 15

4 0
3 years ago
Read 2 more answers
A new mixture of​ self-tanning &amp; moisturizing lotions for everyday use is being developed. This mixture is made by mixing 70
vazorg [7]
For each ounce of the product, let
x = ounces of moisturizing lotion used,
y  = ounces of self-tanning lotion used.

The sum of the two lotions per ounce is equal to one ounce. Therefore
x + y = 1             (1)

Moisturizing lotion costs $0.70 per ounce. 
Self-tanning lotion costs $22 per ounce.

Because the product costs $1.30 per ounce. Therefore
0.70x + 22y = 1.30        (2)

From (1), obtain
y = 1 - x                       (3)

Substitute (3) into (2).
0.70x + 22(1 - x) = 1.30
0.70x - 22x + 22 = 1.30
-21.3x = -20.7
x = 0.9718 ounces
From (3), obtain
y = 1 - 0.9718 = 0.0282 ounces.

A batch of the product is 700 ounces. Therefore the amount of self-tanning lotion used is
700*y = 700*0.0282 = 19.74 ounces

Answer: 19.74 ounces

8 0
4 years ago
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