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3 years ago

Hey can someone help me with this please! ( it’s for geometry class)

Mathematics

1 answer:

vesna_86 [32]3 years ago

3 0

Answer:

tv is 5 inches tall

Step-by-step explanation:

by using Pythagoras theorem

Hypotenuse (h)= 13

width/ base (b)=12

tall (p)= ?

h²=p² + b²

13²= p²+ 12²

169-144 = p²

25= p²

5²= p²

5=p

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Add. 3/10+(−7/20) Enter your answer

Oliga [24]

Make the denominator the same, so multiple 3/10 by 2, which produces 6/20. Take 6/20 and subtract 7/20 because adding a negative number is the same as subtracting a positive number. the Answer is -1/20.

4 0

3 years ago

On a number line 8.63 would be located where

Oksanka [162]

Answer:

It would be slightly higher than 8.5 and lower than 9.

Step-by-step explanation:

8.6 is bigger than 8.5, but it's smaller than 9, so you would place it in between the two but closer to the 8.5 mark.

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3 years ago

Estimate. Round to the greatest place value. Circle whether the estimate is greater then or less then the actual product.

nataly862011 [7]

Answer:

The estimate is greater then.

Step-by-step explanation:

143*2=286

286*2=572 not 6,517

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2 years ago

If you were to use the substitution method to solve the following system, choose the new equation after the expression equivalen

alexandr1967 [171]

The new equation after the expression equivalent to x from the first equation is substituted into the second equation is: $2(-4y-9)+5y=-6$

Step-by-step explanation:

We will solve the initial steps for substitution method for finding the correct answer

Given equations are:

$x+4y = -9\ \ \ \ Eqn1\\2x+5y=-6\ \ \ Eqn2$

From equation one

$x+4y = -9\\x+4y-4y = -9-4y\\x = -4y-9$

Putting x = -4y-9 in equation 2

$2(-4y-9)+5y=-6$

Hence,

The new equation after the expression equivalent to x from the first equation is substituted into the second equation is: $2(-4y-9)+5y=-6$

Keywords: Linear equations, variables

Learn more about linear equations at:

#LearnwithBrainly

6 0

3 years ago

Solve for b. <br>4/3b+2=4-1/3b

Maksim231197 [3]

Answer:

b = $\frac{6}{5}$

Step-by-step explanation:

Multiply through by 3 to clear the fractions.

4b + 6 = 12 - b ( add b to both sides )

5b + 6 = 12 ( subtract 6 from both sides )

5b = 6 ( divide both sides by 5 )

b = $\frac{6}{5}$

4 0

3 years ago