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3 years ago

Which statement is true?

2 answers:

8 0

All squares are rectangles, as squares are a subset. 2 is false because rectangles are a subset. 3 is false because not all parallelograms have right angles. 4 is false (look at first sentence in answer.)

ra1l [238]3 years ago

3 0

The correct answer is: [A]: "All squares are rectangles."
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-24 points lost on a test how many were incorrect

Luba_88 [7]

if there were 100 questions then 76 were correct, and 24 incorrect, you can simplify and rearrange the fraction depending on how many questions there were,

5 0

3 years ago

What is the value of |5 - 2x |- 13 /8when

ra1l [238]

Answer:

Use a calculator

Step-by-step explanation:

5 0

3 years ago

Question #2 What is the difference?

e-lub [12.9K]

Answer:

B $\frac{b-10}{b-1}$

Step-by-step explanation:

In order to get the same denominator, we need to multiply the second fraction by (b+2) in the numerator and denominator.

We will end up in something like this : $\frac{b^{2} - 2b - 8 -6(b+2) }{(b-1)(b+2)}$

I just timed the second fraction by b+ 2 and then i added them together.

Therefore, we will get $\frac{b^{2} - 8b - 20}{(b-1)(b-2)}$

now factoring the numerator we will end like this

$\frac{(b-10)(b+2)}{(b-1)(b+2)}$

we will then end up with the answer.

Hope this helps.

3 0

3 years ago

A cook has 2 3/4 pounds of ground beef. How many quarter-pound burgers can he make?

kherson [118]

9514 1404 393

Answer:

Step-by-step explanation:

2 3/4 lb = 11/4 lb = 11×(1/4 lb)

The cook can make 11 quarter-pound burgers.

3 0

3 years ago

Question 3(Multiple Choice Worth 4 points)

PilotLPTM [1.2K]

Answer:

$\large\boxed{\left(-\dfrac{6}{5},\ -\dfrac{8}{5}\right)}$

Step-by-step explanation:

$\left\{\begin{array}{ccc}2x+y=-4&(1)\\y=3x+2&(2)\end{array}\right\qquad\text{substitute (2) to (1)}\\\\2x+(3x+2)=-4\\2x+3x+2=-4\qquad\text{subtract 2 from both sides}\\5x=-6\qquad\text{divide both sides by 5}\\\boxed{x=-\dfrac{6}{5}}\qquad\text{put it to (2)}\\\\y=3\left(-\dfrac{6}{5}\right)+2\\\\y=-\dfrac{18}{5}+\dfrac{10}{5}\\\\\boxed{y=-\dfrac{8}{5}}$

4 0

3 years ago