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melisa1 [442]
3 years ago
14

Which number line models the sum of 1+(−2) correctly?

Mathematics
1 answer:
Tomtit [17]3 years ago
7 0

Answer:

option 3

Step-by-step explanation:

you add one, so the arrow goes one space to 1

since youre sutracting -2, the arrow goes ack two spaces to -1

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6 x 10^5 over 6 x 10^4 equals ??
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Answer:

its 10 just take away the zeros until u have only one of them trust me its right

Step-by-step explanation:

its 10

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3 years ago
For a field trip 20 students rode in cars and the rest filled eight buses. How many students were in each bus if 340 students we
Varvara68 [4.7K]

Answer:

40 students were in each bus on the trip.

Step-by-step explanation:

Since 20 students rode in cars, subtract 20 from 340. This results in 320.

There are 8 school busses, so divide 320 student into 8 busses.

This results us in 40 students in each bus.

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Find the lesser of two consecutive integers with a sum greater than 16.
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In triangle abc, cos A= -0.6. Find A and Tan A
Tresset [83]

Answer:

Part 1) A=126.87^o

Part 2) tan(A)=-\frac{4}{3}

Step-by-step explanation:

we have

cos(A)=-0.6

The cos(A) is negative, that means that the angle A in the triangle ABC is an obtuse angle and the value of the sin(A) is positive

The angle A lie on the II Quadrant

step 1

Find the measure of angle A

cos(A)=-0.6

using a calculator

A=cos^{-1}(-0.6)=126.87^o

step 2

Find the sin(A)

we know that

sin^2(A)+cos^2(A)=1

substitute the value of cos(A)

sin^2(A)+(-0.6)^2=1

sin^2(A)=1-0.36

sin^2(A)=0.64

sin(A)=0.8

step 3

Find tan(A)

we know that

tan(A)=\frac{sin(A)}{cos(A)}

substitute the values

tan(A)=\frac{0.8}{-0.6}

Simplify

tan(A)=-\frac{4}{3}

5 0
3 years ago
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