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3 years ago

Help me please and thank you :)

Mathematics

1 answer:

den301095 [7]3 years ago

4 0

Answer: 49. You move the decimal point 2 spaces to the left
50. 4.35m
51. You move the decimal point 3 spaces to the right

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Log 200 ~ 2.301 Write in exponential form

Luda [366]

Answer:

It can't be answered because it has to have a variable or number after log200 because that's how you get 2.301.

Step-by-step explanation:

Give me the variable or number and I'll answer it from there.

6 0

3 years ago

Solve mixture problems. George wishes to increase the percent of acid in 50m / of a 15% acid solution in water to 25% acid, how

fenix001 [56]

Answer:

x = amount of pure acid to be added = 6.67ml

Step-by-step explanation:

George wishes to increase the percent of acid in 50ml of a 15% acid solution in water to 25% acid, how much pure acid must you add?

let

x = amount of pure acid to be added

15% of 50 + x = 25% of 50 + x

(0.15 * 50) + x = 0.25(50 + x)

7.5 + x = 12.5 + 0.25x

Collect like terms

x - 0.25x = 12.5 - 7.5

0.75x = 5

x = 5/0.75

x = 6.6666666666666

Approximately,

x = 6.67

x = amount of pure acid to be added = 6.67ml

7 0

3 years ago

3. Vocabulary Suppose △MNP ∼△RST. How can you identify corresponding parts?

MakcuM [25]

Similar triangles may or may not have congruent sides, but the ratio of the corresponding sides will always be congruent.

(3) Corresponding sides of △MNP and △RST

Given that △MNP ∼△RST.

This means that, the corresponding sides are:

MN and RS
MP and RT
NP and ST

(4) The equal measures

Given that △ABC ∼△TUV

This means that, the corresponding angles are equal, but corresponding sides are not.

So, the equal measures are:

(a). the measures of ∠A and ∠T
(c). the ratios of the sides BC/UV and AC/TV

The unequal measure is:

(b). the perimeters of the two triangles

(c) Scale mapping

The scale mapping is given as:

$Ratio = 1\ in : 100\ mi$

The above scale means that 1 inches on the scale represents 100 miles of the actual distance.

Take for instance, 5 inches would represent 500 miles.

500 is 5 times 100

Hence, the actual distance between two towns 100 times the map distance between the two towns

Read more about similar triangles at:

brainly.com/question/14285697

3 0

2 years ago

The quadratic regression equation that models these data is y = –0.34x2 + 4.43x + 3.46. Using the quadratic regression equation,

arsen [322]

Answer:

13.76

Step-by-step explanation:

We want year 10; this means we substitute 10 in place of x:

y=-0.34(10²)+4.43(10)+3.46

y = -0.34(100)+4.43(10)+3.46

y = -34+44.3+3.46 = 13.76

3 0

3 years ago

Read 2 more answers

Which would be the correct answer!

Blizzard [7]

Answer:

I think also option c ok

8 0

3 years ago