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solmaris [256]
3 years ago
11

Solve x2 = 144. A : 72 B: 12 C: ±12 D : −12

Mathematics
1 answer:
Nuetrik [128]3 years ago
5 0

Answer:

72

Step-by-step explanation:

72 x 2 = 144

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If f(x) = 5 + 4(x - 4)?,<br> what is f(7)?
grigory [225]

Answer:

Let's solve for f.

x=5+4(x−4)f(7)

Step 1: Flip the equation.

28fx−112f+5=x

Step 2: Add -5 to both sides.

28fx−112f+5+−5=x+−5

28fx−112f=x−5

Step 3: Factor out variable f.

f(28x−112)=x−5

Step 4: Divide both sides by 28x-112.

f(28x−112)28x−112=x−528x−112

f=x−528x−112

Answer:

f=x−528x−112

3 0
3 years ago
Convert from Decimal Notation to Scientific Notation
DIA [1.3K]

Answer:

Hence, 0.00000103 can be expressed as $1.03 \times 10^{-6}$.

Step-by-step explanation:

- Given 0.00000103

- Move the decimal point so that the factor is greater than or equal to 1 but less than 10 .

- Then count n and write no. as a product with a power of 10 .

Step 1 of 1

Consider 0.00000103,

1.03

Decimal has moved 6 places to right.

The power will be negative as the original no. is less than 1 .

$$\begin{array}{r}1.03 \times 10^{-6} \\0.00000103=1.03 \times 10^{-6}\end{array}$$

5 0
2 years ago
The ratio of boys to girls is 4:3 .T here are 35 students in a class how many students are boys ?? Pleaseee help
evablogger [386]
There are 20 boys in the class. The ratio is 4:3 so that means 4 out of 7 are boys and 3 out of 7 are girls. Divide 35 by 7 and you get 5. 5 times 4 is 20. 5 times 3 is 15. add them together and you have 35 students in total. So 20 students are boys and 15 students are girls.
8 0
3 years ago
Eight thousand six and thirty-four thousandths<br> * Write as a decimal
valentinak56 [21]

Answer:

8,006.034

Step-by-step explanation:

eight thousand six = 8,006

and = .

thirty-four thousandths = .034

5 0
3 years ago
When the sum of a number and 3 is subtracted from 10 the result is 5. What is the integer
Rashid [163]

In algebraic terms this is:

10-(x+3)=5\\10-x-3=5\\10-x=5+3\\10-x=8\\-x=8-10\\-x=-2\\x=2

The integer is 2.

4 0
3 years ago
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