3 years ago

Help me with this math equation

Mathematics

1 answer:

jeyben [28]3 years ago

4 0

-3.2 - 4 = -7.2

the picture has the correct answer on it.

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Use the DISTRIBUTIVE PROPERTY to simplify the expression. 4(3r - 8)

Over [174]

Answer:

12r-32

Step-by-step explanation:

Distribute the 4 between the different numbers.

3r * 4 = 12r and 8 * 4 = 32

So...you end up with 12r-32

3 0

3 years ago

Expand and simplify

likoan [24]

Answer:

5 $\sqrt{2}$ + $\sqrt{10}$

Step-by-step explanation:

Using the rule of radicals

$\sqrt{a}$ × $\sqrt{b}$ ⇔ $\sqrt{ab}$

Given

$\sqrt{5}$ ( $\sqrt{10}$ + $\sqrt{2}$ ) ← distribute

= $\sqrt{50}$ + $\sqrt{10}$

= $\sqrt{25(2)}$ + $\sqrt{10}$

= $\sqrt{25}$ × $\sqrt{2}$ + $\sqrt{10}$

= 5 $\sqrt{2}$ + $\sqrt{10}$

3 0

3 years ago

Hello guys i need help

Drupady [299]

Step-by-step explanation:

90*8.25=742 rounds to 675 because its the closest. 85-95=10 divided by 2=5+85=90. 9-7.5=1.5 divided by 2=0.75+7.5=8.25. thats how i got those numbers. THE ANSWER IS C

8 0

3 years ago

Read 2 more answers

Help me pleseeeeeee asappppp

pentagon [3]

Answer:

(-2.5, -10)

Step-by-step explanation:

Midpoint Formula: $(\frac{x_1+x_2}{2} ,\frac{y_1+y_2}{2} )$

Step 1: Plug in

x = (-2 + -3)/2

y = (-8 + -12)/2

Step 2: Evaluate

x = -5/2

y = -20/2 = -10

Step 3: Format into coordinates

(-5/2, -10)

Step 4: Convert to decimal

(-2.5, -10)

4 0

3 years ago

The side of a square is measured to be 16 ft with a possible error of ±0.1 ft. Use linear approximation or differentials to esti

Andrews [41]

this is hard im also learning this

3 0

2 years ago