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stealth61 [152]

2 years ago

8

Solve (-4 + -7)(-3) please!!!!!!!!!!!!!!!!!!!!!!!!!

2 answers:

miss Akunina [59]2 years ago

6 0

So you add whats in parentheses first which gives you -11 then you end up with -11(-3)

Which will equal 33 Thats your final awnser...

33

liq [111]2 years ago

4 0

Answer:

33

Step-by-step explanation:

Starting off with PEMDAS, where P as in Parenthesis, E as in exponent, M as in multiplication, D as in division, A as in addition, and S as in Subtraction, let's start off by working on the first parenthesis to add.

-4+-7=-11 (when adding both negatives just pretend they aren't there then add the negative at the end).

We are left with (-11)(-3). When we multiply a negative times a negative, we end up with a positive number.

So the answer is 33.

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A 96 foot tree casts a shadow that is 120 feet long. What is the angle of elevation of the sun? Round to the nearest degree.

zysi [14]

Answer:

$\alpha \approx 39^{\circ}$

Step-by-step explanation:

Let assume that tree grows perpendicular to surface. The statement is geometrically represented in the attachment included below, which resembles a right-angled triangle. Lastly, the angle of elevation of the sun is determined with the help of the following trigonometric relationship:

$\tan \alpha = \frac{96\,ft}{120\,ft}$

$\tan \alpha = \frac{4}{5}$

$\alpha = \tan^{-1}\left(\frac{4}{5} \right)$

$\alpha \approx 38.660^{\circ}$

$\alpha \approx 39^{\circ}$

4 0

4 years ago

Factor out the greatest common factor of the expression below using the distributive property.

Umnica [9.8K]

Greatest common factor which is 30

6 0

3 years ago

Read 2 more answers

e vertices of a rectangle are R(-5,-5), S(-6,-5),T(-1,1),U(-5,1) a translation maps R to the point (2,-9)

Tema [17]

Answer:

The rule of translation : $(x,y)\rightarrow (x+7,y-4)$

The vertices of image is R'(2,-9), S'(1,-9), T'(6,-3) and U'(2,-3).

Step-by-step explanation:

The vertices of a rectangle are R(-5,-5), S(-6,-5), T(-1,1), U(-5,1).

It is given that a translation maps R to the point (2,-9).

Difference between x-coordinates:

$-5-2=-7$

Difference between y-coordinates:

$-5-(-9)=-5+9=4$

The x-coordinate increased by 7 and y-coordinate decreased by 4. It means the figure shifts 7 units right and 4 units down.

The rule of translation is

$(x,y)\rightarrow (x+7,y-4)$

The vertices of image are

$R(-5,-5)\rightarrow R'(-5+7,-5-4)=R'(2,-9)$

$S(-6,-5)\rightarrow S'(-6+7,-5-4)=S'(1,-9)$

$T(-1,1)\rightarrow T'(-1+7,1-4)=T'(6,-3)$

$U(-5,1)\rightarrow U'(-5+7,1-4)=U'(2,-3)$

Therefore, the vertices of image are R'(2,-9), S'(1,-9), T'(6,-3) and U'(2,-3).

7 0

3 years ago

Please help!!!!!!!!!!

Sunny_sXe [5.5K]

Answer:

From the chapter Playing with numbers

we can define derek has 2×10^2 + 7 × 10^1 + 7× +0^0

as If ABC a number then ABC can be written as 10^2A+10^1B+10^0C

Hope it helps

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