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3 years ago

Which number line model represents the expression -5+2.5

Mathematics

2 answers:

Tamiku [17]3 years ago

8 0

Answer:

b i belive

Step-by-step explanation:

sukhopar [10]3 years ago

6 0

B would be the closest answer

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Rachel saves $3 everyday,how much will she have saved at the end of 570 days

anyanavicka [17]

If Rachel saves 3 dollars each day for 570 days, the answer is found by multiplying 3 x 570. = 1710

5 0

4 years ago

One of the legs of right triangle measures 16 cm and the other leg measures 2 cm.

Pavlova-9 [17]

Answer:

16.1 cm (nearest tenth)

Step-by-step explanation:

<u>Pythagoras’ Theorem</u>

$a^2+b^2=c^2$

(where a and b are the legs, and c is the hypotenuse, of a right triangle)

Given:

a = 16 cm
b = 2 cm

Substitute the given values into the formula and solve for c:

$\implies 16^2+2^2=c^2$

$\implies 256+4=c^2$

$\implies c^2=260$

$\implies c=\sqrt{260}$

$\implies c=2\sqrt{65}$

$\implies c=16.1 \sf \: cm\:(nearest\:tenth)$

3 0

2 years ago

What is the value of a?-2(a-8)+6a=36

saul85 [17]

$-2(a-8)+6a=36 \\ \\ -2a + 16 + 6a = 36 \\ \\ 4a + 16 = 36 \\ \\ 4a = 36 - 16 \\ \\ 4a = 20 \\ \\ a = \frac{20}{4} \\ \\ a = 5 \\ \\$

The final result is: a = 5.

8 0

4 years ago

Someone must have beaten me here. Devora thinks, dismayed by the empty treasure chest. Then, just as she's about to close the li

chubhunter [2.5K]

Answer:

Based on the assumption that the angle of the triangle at the cave entrance is a right angle, the angle Devora turned before walking to the treasure chest is approximately 57 degrees.

Step-by-step explanation:

A sketch of the triangle formed is attached where E is the entrance of the cave, C is the treasure chest and T is the treasure itself.

Using the cosine trigonometric ratio, we have that

$\cos \theta = \frac{484848}{898989} = 0.5393$