3 years ago

Please help me with my math homework

Mathematics

1 answer:

dezoksy [38]3 years ago

4 0

Answer:

d. COB

Step-by-step explanation:

Complementary angles are angles which add to 90 or form right angles.

COB complements COD.

You might be interested in

Jason needs 10 cups of milk to make a chocolate shake for his family. His measuring device measures liquids by the pint. If 1 pi

V125BC [204]

It should be about 5 pints

7 0

3 years ago

Suppose PR = 54, solve for QR<br> 4x-1<br> 3x-1<br> P<br> R

Svet_ta [14]

Answer:

$QR = 23$

Step-by-step explanation:

P, A, and R are collinear.

PR = 54

$PQ = 4x - 1$

$QR = 3x - 1$

To solve for the numerical length of PR, let's generate an equation to find the value of x.

According to the segment addition postulate:

$PQ + QR = PR$

$(4x - 1) + (3x - 1) = 54$ (substitution)

Solve for x

$4x - 1 + 3x - 1 = 54$

Combine like terms

$4x + 3x - 1 - 1 = 54$

$7x - 2 = 54$

Add 2 to both sides

$7x - 2 + 2 = 54 + 2$

$7x = 56$

Divide both sides by 7

$\frac{7x}{7} = \frac{56}{7}$

$x = 8$

$QR = 3x - 1$

Plug in the value of x into the equation

$QR = 3(8) - 1 = 24 - 1$

$QR = 23$

5 0

3 years ago

A 1st degree polynomial function whose graph intercepts the y-axis at 8.

asambeis [7]

Your answer can be anything in the form y = mx+8 where you replace m with any real number.

You start with y = mx+b, and then replace the b with the y intercept 8.

The y intercept is where the polynomial crosses the y axis.

The value of m does not matter. So you could have y = 2x+8 or y = 3x+8 for instance. Replace m with whatever your favorite number is.

4 0

2 years ago

Factoriza 4x²-y²-6y-9

sveta [45]

$4 x^{2} -y^{2} -6y-9 \\ 4 x^{2} = y^{2} +6y+9 \\ 4 x^{2} =(y+3)(y+3) \\ \sqrt{ 4x^{2} } = \sqrt{(y+3)(y+3)} =\\2x=y+3\\2x-3=y$

y=2x-3

4 0

3 years ago

Read 2 more answers

The formula for the area of a triangle is A-1bh. Solve for b.

Nady [450]

Answer:

Step-by-step explanation:

A = 1/2 b h

A2 = b h

b = <u>2A</u>

5 0

3 years ago

Read 2 more answers