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notsponge [240]
3 years ago
14

If f(x)=2xsquared-10, find f(5) A.90 B.10 C.7.5 D.40

Mathematics
1 answer:
inessss [21]3 years ago
5 0

Answer:

D.40

Step-by-step explanation:

2(5)squared -10

2(25)-10

50-10=40

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Sadiq measured the dimensions of a 1 kg bag of sugar and found the length was 9.2 cm, the width was 6 cm and the height was 14.1
garik1379 [7]

Answer:

d=1.28\times 10^{-6}\ g/cm^3

Step-by-step explanation:

The mass of a bag of sugar, m = 1 kg = 0.001 g

Length of bag, l = 9.2 cm

Width of bag, b = 6 cm

Height of the bag, h = 14.1 cm

We need to find the density of the sugar bag.

Density = mass/volume

So,

d=\dfrac{0.001\ g}{9.2\times 6\times 14.1\ cm^3}\\\\d=1.28\times 10^{-6}\ g/cm^3

So, the density of the bag is 1.28\times 10^{-6}\ g/cm^3.

7 0
2 years ago
Which statements are true about a rectangular pyramid with a height of 9 centimeters and a base with the dimensions of 4
tigry1 [53]

Answer:

- The area of the base of the pyramid, B, is 24 cm

- A rectangular prism with the dimensions of 9 cm by 4 cm by 6 cm will have 3 times volume of this pyramid.

Step-by-step explanation:

Volume of a rectangular based pyramid = 1/3{Base area × Height}

Base Area = Length × Breadth

Volume = 1/3{(Length × Breadth) × Height}

Given a rectangular pyramid with a height of 9 centimeters and a base with the dimensions of 4

centimeters by 6 centimeters

Base Area = 4cm × 6cm

Base area = 24cm²

If Height =9cm

Volume of the pyramid = 1/3 × 24 × 9

Volume = 24 × 3

Volume of the pyramid = 72cm³

If the shape is a prism, the volume will be base area × height

= 24 × 9

= 216cm³

It can be seen that volume of rectangular prism = 3 × volume of rectangular pyramid.

6 0
3 years ago
Read 2 more answers
Assume that y varies with x. when y=6, x=2/3. what is x when y=12? NEED QUICK!!
liraira [26]

Answer:

4/3

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
What is 44 as a percentage of primes
Sholpan [36]
44 = 2^2 x 11
11+2= 13


13
-----
44                  = <span>0.29545454545</span>
4 0
3 years ago
Which ordered pairs make the inequality true?
tresset_1 [31]
Its the 2nd one becuase 2(-1)+2=0 witch is greater than -4.
3 0
3 years ago
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