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3 years ago

!!!!!!!!!!!!!!!!!! help

Mathematics

1 answer:

Triss [41]3 years ago

3 0

Answer:

option 1

Step-by-step explanation:

It's given in the question that

a (first term of an A.P.) = 14

d (common difference between terms of A.P.) = -3

So,

2nd term will be = a + d = 14 + (-3) = 11

3rd term = a + 2d = 14 + 2×(-3) = 8

4th term = a + 3d = 14 + 3×(-3) = 5

All these terms are matching with option 1. So, option 1 is the correct option

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3 years ago

What is the area of the composite figure? -70 cm2 -100 cm2 -105 cm2 -130 cm2

mr Goodwill [35]

Make two shapes out of it.

The bottom is a rectangle 14 x 5 = 70 square cm

The top is a triangle 1/2 x 12 x 5 = 30 square cm

Total area = 70 + 30 = 100 square cm

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3 years ago

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Plz answer quickly will mark brainless

den301095 [7]

Answer:

She must read more than 5 hours

Step-by-step explanation:

equation 12h+10>70

12h>60

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So she must read more than 5 hours

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3 years ago

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Find the length of the missing side. The triangle is not drawn to scale.

suter [353]

Answer:

D.) 8

Step-by-step explanation:

You can use the Pythagorean theorem because this is a right triangle:

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

a and b are the legs and c is the hypotenuse. The hypotenuse is always the longest side in a right triangle (since it is opposite the biggest angle). The two legs squared have to add up to the hypotenuse squared.

Fill in values:

$a^2+15^2=17^2$

Simplify exponents:

$a^2+225=289$

Isolate the variable. Subtract 225 from both sides:

$a^2+225-225=289-225\\a^2=64$

Find the square root of both sides:

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3 years ago

Solve this equation -3x+1+10x=x+4

Salsk061 [2.6K]

Answer: $x=\frac{1}{2}$

Explanation:

We have been given with the equation -3x+1+10x=x+4

We will collect the terms that are written in variable of x in one side and the constant values on the other side we will get

-3x+10x-x=4-1

After simplification we will get 6x=3

which implies x=1/2

When x from right hand side shift will shift to left hand side it will change its sign and similarly when 1 from left hand side shift to right hand side change its sign.

Therefore, x=1/2

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4 years ago

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