2 years ago

Work out -11 x +4 =

Mathematics

1 answer:

max2010maxim [7]2 years ago

3 0

Answer:

-11 * +4
- * + = -
11 * 4 = 44
-44

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A person who is 5 feet tall is standing 108 feet from the base of a tree, and the tree casts a 120 foot shadow. The persons shad

slega [8]

Answer:

50ft

Step-by-step explanation:

let x=height of tree.

AB/DE = BC/EC

The ratio is == x/5 =120/12

x/5 = 10

x = 50

Height of tree is 50 ft.

4 0

2 years ago

Can you guys help me with this one?

svet-max [94.6K]

You can factor this by taking out the GCF (greatest common factor).

In the expression, the greatest common factor between the two terms is 5.

Take out 5:

5(2b + 5)

Is it possible to factor 2b + 5 even more?

No. So, your answer is D. 5(2b + 5).

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2 years ago

find the value of tan (a-b) if cos a=4/5 on the interval (270, 360) and sin b=-5/13 on the interval (270, 360)

Rudiy27

We can find a and b using inverse trig functions,

$\cos(a)=\frac{4}{5}\implies a=\arccos\Big(\frac{4}{5}\Big)\approx36.87 \\\sin(b)=-\frac{5}{13}\implies b=\arcsin\Big(-\frac{5}{13}\Big)\approx-22.62$

$\tan(36.87-(-22.62))\approx1.7$

Hope this helps.

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2 years ago

Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.

KiRa [710]

Answer:

1863 $meters^{2}$

Step-by-step explanation:

( 23 x 12 ) x 2 = 552

69 x 19 = 1311

1311

= 1863 $meters^{2}$

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2 years ago

Please help me i'll give 20 points to whoever helps me answer all 4 of them and brainly

Brilliant_brown [7]

Answer:

G - number of arrangements

F. the amount of her allowance

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1 year ago

Work out -11 x +4 =​

Work out -11 x +4 =