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Ilya [14]
2 years ago
9

HERE I AM AGAIN, HELPPPPP ILL GIVE BRAINLIEST <3

Mathematics
2 answers:
nikklg [1K]2 years ago
6 0

Answer:

For number three I think the blank represents 1.25

Step-by-step explanation:

<em><u>For the third one:</u></em>

I named the answer / total as x

-x - 2.25 = x

-x + 2.5 + 2.5 = x + 2.5

Simplifying it would give 1.25

(I'm unsure for the answer but I tried!)

HOPE THIS HELPS!!

fredd [130]2 years ago
5 0
it equals 2.75 because 2 negatives means you add
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nata0808 [166]
A. h = 30Ft * 1.26cm/Ft = 37.8 cm. = Ht. of the model.

37.8cm * 1toothpick/6.3cm = 6 Toothpicks

B. 37.8cm/7.6 = 4.97 hope this helped.
7 0
3 years ago
HELLPPPPP PLS INCLUDE EXPLANATION ON HOW TO DO IT SO I CAN DO IT ON MY OWN!!!!
ale4655 [162]

Answer: 0.000021 in scientific notation is

2.1 × 10-5

Step-by-step explanation:

All numbers in scientific notation or standard form are written in the form

m × 10n, where m is a number between 1 and 10 ( 1 ≤ |m| < 10 ) and the exponent n is a positive or negative integer.

To convert 0.000021 into scientific notation, follow these steps:

Move the decimal 5 times to right in the number so that the resulting number, m = 2.1, is greater than or equal to 1 but less than 10

Since we moved the decimal to the right the exponent n is negative

n = -5

Write in the scientific notation form m × 10n

= 2.1 × 10-5

Therefore,

2.1 × 10-5 is the scientific notation form of 0.000021 number and 2.1e-5 is the scientific e-notation form for 0.000021

** Hope this helps you! Good Luck!

3 0
3 years ago
Which expression finds the measure of an angle that is coterminal with a 126° angle?
N76 [4]
The expression that gives an angle that is coterminal with 126 is 126 + 720n. Two angles are said to be coterminal if when they are drawn in a standard position, their terminal sides are on the same location. The expression will give an angle which when it is drawn the terminal sides are on the same location with the 126 angle.
3 0
3 years ago
Read 2 more answers
Which of the following sets could be represented by the given Venn diagram? S = {multiples of 4} T = {8, 12, 20} S = {Mercury, V
Firdavs [7]

Answer:

The answer is C S = {reptiles} T = {mammals}

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
What is the length of the blue in the circle<br> o below
iVinArrow [24]

Answer:

Option D. 8.53 units

Step-by-step explanation:

we know that

The triangle OAB is congruent with the triangle OCD

because

OA=OB=OC=OD=radius circle O

AB=CD

therefore

The height of both triangles is equal to 8.53 units

The segment blue is equal to 8.53 units

8 0
3 years ago
Read 2 more answers
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