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gogolik [260]
3 years ago
10

When evaluating the following expression, which should you do first? 45 ÷ (9 - 4)

Mathematics
2 answers:
xenn [34]3 years ago
7 0
Start with the parentheses 9-4=5

then bring down the 45 / 5= 9
Viefleur [7K]3 years ago
6 0
You should always do the parentheses first
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Someone can help???
frozen [14]

Answer:

The slant of the ladder is 5 ft

Step-by-step explanation:

Look at the attached figure to understand this situation

∵ a represents the distance from the edge to the top step

∵ The distance from the edge to the top step is 4 ft

∴ a = 4 ft

∵ b represents the distance to the house's edge from the bottom step

∵ The distance to the house's edge from the bottom step is 3 ft

∴ b = 3 ft

∵ c represents the slant of the ladder

∴ We need to find c

→ By using the Pythagoras Theorem

∵ c = \sqrt{a^{2}+b^{2}}

∴ c = \sqrt{(4)^{2}+(3)^{2}}=\sqrt{16+9}=\sqrt{25}

∵ \sqrt{25} = 5

∴ c = 5 ft

∴ The slant of the ladder is 5 ft

5 0
3 years ago
Can I get some help abs an easy explanation pls
Svetlanka [38]

we are given the following triangles:

We are asked to determine the value of "y". To do that we will use the tangent of 25:

\tan 25=\frac{y}{x}

We solve for "y" by multiplying both sides by "x":

x\tan 25=y

Now, we take the tangent of 15:

\tan 15=\frac{y}{30+x}

Now, we solve for "y" by multiplying both sides by the denominator:

(30+x)\tan 15=y

Now, we set both values of "y" equal, we get:

x\tan 25=(30+x)\tan 15

now, we solve for "x". First, we apply the distributive property on the right side:

x\tan 25=30\tan 15+x\tan 15

Now, we substract

7 0
1 year ago
HELP ME PLZ
joja [24]
Ok I think it’s 26 if I’m wrong sorry
7 0
3 years ago
What is 8−4(−x+5) in equivelent expression
jonny [76]

Answer:

4x - 12

4(x - 3)

Step-by-step explanation:

8 - 4( - x + 5) \\ 8  + 4x - 20 \\ 4x - 12

<em>hope</em><em> </em><em>this</em><em> </em><em>helps</em>

<em>brainliest</em><em> </em><em>appreciate</em><em>d</em><em>.</em>

3 0
3 years ago
Read 2 more answers
What is the approximate area of the shaded sector in the circle shown below
Georgia [21]

Answer:

51.3

Step-by-step explanation:

The formula is Θ/360 × πr²

30/360 × 22/7 × 14²

30/360 × 22/7 × 196

= <u>51.3</u>

8 0
3 years ago
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