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lapo4ka [179]
2 years ago
15

I really need help with this is due on Friday pls help with steps!

Mathematics
1 answer:
olchik [2.2K]2 years ago
8 0

Answer:

1. 11

2. 7

3. 4

4. 10

.

5. 17.2

6. 2.2

7. 3.3

8. 7.9

Step-by-step explanation:

When calculating square root, you always need to find a number multiplied by itself twice that gives the number

Example: \sqrt{64}

What number multiplied by itself twice gives 64? Number 8! because 8 × 8 = 64

Now cube root is a little bit different. This time, you will need to find a number multiplied by itself three times that gives that number.

Example: \sqrt{125}

What number multiplied by itself three times gives 125? Number 5! because 5 × 5 × 5 = 125

Hope this helps!

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Solve: -9 + (-12) - -13 =
Mama L [17]

Answer:

-8

Step-by-step explanation:

8 0
3 years ago
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2) A box contains 9 red and 2 blue marbles and 3 yellow marbles. If you select oneat
Olin [163]

Answer:

red is more in value unlike the rest

8 0
2 years ago
Determine the measure of the missing angles. Show your work! Be ready to discuss your answer.
soldier1979 [14.2K]

For a.

Since there are already two angles given for the triangle, we can measure the last angle using this formula:

90 + 55 + a = 180

Now solve for "a".

90 + 55 + a = 180

145 + a = 180

a = 180 - 145

a = 35°

For b.

From the picture above, the two triangle's tip are touching and having to form <em>vertical angles. </em>This means that the angles are congruent to each other.

Now that we have two angles in the second triangle(35 and 120), we can use the same formula:

35 + 120 + b = 180

Now solve for "b":

35 + 120 + b = 180

155 + b = 180

b = 180 - 155

b = 25°

3 0
3 years ago
Read 2 more answers
SOMEONE PLEASE HELP ASAP!!!!!
Margaret [11]

Answer:

<em>x = 1</em>

<em>y = 1</em>

Step-by-step explanation:

<u>System of Equations</u>

We are given the system of equations:

2x + y = 3

x = 2y - 1

Substituting x in the first equation:

2(2y - 1) + y = 3

Operating:

4y - 2 + y = 3

5y = 3 + 2

y = 5/5 = 1

y = 1

Since:

x = 2y - 1

Then:

x = 2(1) - 1

x = 1

Solution:

x = 1

y = 1

7 0
3 years ago
1. Sally said that when you add or subtract positive or negative decimals, you can change the order of the decimals and still ge
siniylev [52]
Always true because addition and subtraction is commutative
-6.2-(-3.96) = -2.24
-3.96-(-6.2)= -2.24
5.71+2.84=8.55
2.84+5.71=8.55  
Hope this helped :)
3 0
2 years ago
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