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xz_007 [3.2K]
3 years ago
12

What is the value of 7.5(3× + 4), when × = 7?

Mathematics
1 answer:
Travka [436]3 years ago
4 0

Answer:

7.5(3(7) + 4)=  187.5

Step-by-step explanation:

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A) write √3×√6 in the form of b√2 where b is the insteger<br><br>b) simplify √8×√18<br>​
Bas_tet [7]

Step-by-step explanation:

a.) the given term can be written as

=

\sqrt{3}  \times  \sqrt{3 \times 2}

=

\sqrt{3 \times 3 \times 2}

=

3 \sqrt{2}

hence the given term is

3 \sqrt{2}

where b = 3

b.)

=

\sqrt{8}  \times  \sqrt{18}

=

\sqrt{2 \times 2 \times 2}  \times  \sqrt{2 \times 3 \times 3}

=

\sqrt{2 \times 2 \times 2 \times 2 \times 3 \times 3}

=

12

hence the given term is 12

4 0
3 years ago
Jason and Megan are brother and sister. Jason is 4 years older than Megan.If Jason is 16 yearsold write and solve an equation to
Eva8 [605]
16-4=12 is the answer.
8 0
3 years ago
The sum of two numbers is 11 and their product is 18. Find the numbers.
Vanyuwa [196]

Answer: the numbers are 9 and 2

Step-by-step explanation:

Let the numbers be a and b

a + b = 11.........equation 1

ab = 18.......equation 2

Multiply equation 1 by a

a ^2 + ab = 11a.......equation 3

Substitute the value of ab from equation 2 into equation 3

a ^2 + 18 = 11a

a^2 - 11a + 18 = 0

(a-9) x (a-2) = 0

If a = 9, then b =2

I hope this helps, please mark as brainliest answer.

3 0
4 years ago
A building brick weighs 2.7 kilograms. work out the weight of 840 bricks. give the answer in tonnes
Charra [1.4K]

Answer:

2.268 tons

Step-by-step explanation:

Multiply 840 to 2.7 to figure out the weight of 840 bricks.

840 x 2.7 = 2268 kilograms

Convert 2268 kilograms into tons which will be 2.268 tons.

How did I convert? Divide 2268 by 1000 because 1 ton = 1000 kilograms.  

5 0
3 years ago
Represent 5/8 on a number line please i'm confused
Rudiy27

Answer:

tHE ANSWER IS PIC

Step-by-step explanation:

6 0
3 years ago
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