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2 years ago

If ab and cd are congruent what is the measure of

Mathematics

1 answer:

frosja888 [35]2 years ago

5 0

the measure of angle COD will be 101°

angle AOB and angle COD are vertically opposite angles

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When salt and water are combined, they form a salt or saline solution. How much ml of water must be added to 150 mL of an 80% sa

Vinvika [58]

Answer:

We must add 400 ml of water.

Step-by-step explanation:

We can use the following equation:

$C_{i}V_{i}=C_{f}V_{f}$

Where:

C(i) is the initial concentration of the solution (80%)
C(f) is the final concentration of the solution (30%)
V(i) is the initial volume (150 ml)
V(f) is the final volume

Now, we just need to solve the equation for V(f).

$V_{f}=\frac{C_{i}V_{i}}{C_{f}}$

$V_{f}=\frac{80*150}{30}$

$V_{f}=400\: ml$

Therefore, we must add 400 ml of water.

I hope it helps you!

3 0

2 years ago

Find the distance ??????

Levart [38]

Answer:

Yes

Step-by-step explanation:

5 0

2 years ago

Help..................

Mashcka [7]

Im sorry, it is too blurry. I cannot read it.

4 0

2 years ago

Read 2 more answers

A. (2.5,3)<br> B.(2,5.5)<br> C.(4,10)<br> D.2,10

atroni [7]

Answer:

(4,10) I think !

Step-by-step explanation:

the line is lined up with them !

6 0

2 years ago

60 points !! i'll mark brainliest as well . don't scam or i'll report thanksss :)

sp2606 [1]

Answer:

2, 6, 28, 358.01

Step-by-step explanation:

We have to find the fractions of whole numbers.

Number 1:

$\frac{1}{5}$ of 10 = $\frac{1}{5} \times (2 \times 5) = 2$ (Answer)

Number 2:

$\frac{2}{3}$ of 9 = $\frac{2}{3} \times (3 \times 3) = 2 \times 3 = 6$ (Answer)

Number 3:

$\frac{7}{8}$ of 32 = $\frac{7}{8} \times (4 \times 8) = 7 \times 4 = 28$ (Answer)

Number 4:

$3 \times 10^{2} + 5 \times 10^{1} + 8 \times 10^{0} + 1 \times \frac{1}{10^{2} }$

= $3 \times 100 + 5 \times 10 + 8 \times 1 + \frac{1}{100}$ {Since $a^{0} = 1$ }

= 300 + 50 + 8 + 0.01

= 358.01 (Answer)

4 0

2 years ago