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3 years ago

HELP!!! WILL BE MARK AS A BRAINLISTTTT!!! Please

Mathematics

1 answer:

jonny [76]3 years ago

8 0

I believe the answer is b

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Shalina uses the expression 3x to determine the cost of x notebooks. What is the cost of 24 notebooks?

PIT_PIT [208]

Answer:

$72

Step-by-step explanation:

Let's use substitution to identify the cost of 24 notebooks.

The equation is represented as:

$3x = ?$

Substitute 24 into x:

$3(24) = ?$

Solve:

$72$

3 0

2 years ago

Simplify: −z3+5k6−(−z3+10k6)

natta225 [31]

Answer:

The answer to your question is -5k⁶

Step-by-step explanation:

Polynomial

- z³ + 5k⁶ - (-z³ + 10k⁶)

Use law of signs for the parenthesis

- z³ + 5k⁶ + z³ - 10k⁶

Use associative property for like terms

(-z³ + z³) + (5k⁶ - 10k⁶)

Simplify like terms

(0) + (-5k⁶)

Result

-5k⁶

7 0

3 years ago

Read 2 more answers

Could you pls help with question 2

kolezko [41]

Answer:

Isolate the variable by dividing each side by factors that don't contain the variable.

Exact Form:

Decimal Form:

0.3

this is the first one I'm not to good with area

8 0

2 years ago

What is the longest line segment that can be drawn in a right rectangular prism that is 14 cm long 11 cm wide and 7 cm tall

weqwewe [10]

Answer:

The longest segment is approximately 19.13cm

Step-by-step explanation:

Given

$l = 14cm$

$w = 11cm$

$h = 7cm$

Required

The length of the longest segment (d)

This is calculated using:

$d = \sqrt{l^2 +w^2 + h^2$

So, we have:

$d = \sqrt{14^2 +11^2 +7^2$

Using a calculator, the equation becomes

$d = \sqrt{366$

Take square roots

$d = 19.13cm$

4 0

3 years ago

Just Number 15? Please

Damm [24]

15)
an exterior angle equals the sum of the remote interior angles
so
m<XYT = m<X + m<Z
4x - 25 = x + 15 + 50 - 3x
4x - 25 = -2x + 65
6x = 90
x = 15

answer
x = 15

8 0

3 years ago