Find the value for x

Mathematics

1 answer:

Lerok [7]2 years ago

7 0

43= 2x-7 43+7=50 50/2=25 X=25

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Multiply. (2x2 – 3x)(3x2 + 2x - 1)

exis [7]

Answer:

$-6x^{2}$ –7x + 20

Step-by-step explanation:

(2x2 – 3x)(3x2 + 2x – 1)

(4 – 3x)(2x + 5)

(4*2x) + (4*5) + (–3x*2x) + (–3x*5)

8x + 20 $-6x^{2}$ –15x

$-6x^{2}$ –7x + 20

8 0

3 years ago

Pls help

kupik [55]

Answer:

0.54kilometres

Step-by-step explanation:

a)actual distance =2.7*20000

=54000cm

=0.54kilometres

7 0

2 years ago

Read 2 more answers

In 1963, the United States Postal Service started using ZIP (Zone Improvement Plan) codes. Each ZIP code is a sequence of five d

bija089 [108]

Here is how you find the number of possible U.S Zip codes.
Take note of this: There are 10 1 digit numbers: 0,1,2,3,4,5,6,7,8,9.
And we have 5 slots. So in each slot, there can be 10 possible numbers.
So let's put 10 in each blank slot.
10, 10, 10, 10, 10.
Therefore, the final answer would be 100,000. There are 100,000 possibilities of different U.S zip codes. Hope this answer helps.

5 0

3 years ago

Calculate the value of (6.72 10^5)+ (3.2 x 10^4) Give your answer in standard form.

dangina [55]

Answer:

$7.04\cdot 10^{5}$ or 704,000

Step-by-step explanation:

Standard Form of Numbers

Any number that we can write as a decimal number between 1.0 and 10.0, multiplied by a power of 10, is said to be in Scientific Notation. Some authors consider standard form and scientific form as the same, but others state that standard form is the common form of expressing numbers, i.e., a sequence of digits, separated by thousands by a comma, and separated from the decimal part by a dot.

We'll give here both answers.

We have to calculate:

$6.72\cdot 10^{5}+3.2\cdot 10^{4}$