Help it’s math

32°

Step-by-step explanation:

We want to find the angle B. The first thing we can identify in the question is that AB and AC have the same length of 10 so we can assume that triangle ABC is isosceles

→ If the triangle is isosceles then two angles will be equal

→ Angles in a triangle add up to 180°

We can set up an equation to find the value of B using the information above. If we know that the triangle is isosceles then the base angles are equal and if we know that angles in a triangle add up to 180° we can set up an equation.

→ In equations its important to keep both sides equal and do operations to both sides and not one because then if you do an operation to only one side then you have changed the equation so it's important to do operations on both sides and that's an important rule to bare in mind.

74 + 74 + B = 180

→ Simplify

148 + B = 180

→ Minus 148 from both sides to isolate B

B = 32°

So the measure of B is 32°

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.