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3 years ago

Write all names that apply to 7/8

Mathematics

2 answers:

pogonyaev3 years ago

5 0

Seven eighth, 7 over 8, 7/8, 0.875,

Naily [24]3 years ago

3 0

Some correct answers are:

"seven eighths"; 7/8; "7 over 8"; 0.875; "the ratio of 7 to 8"; "7 out of 8"

Explanation:

7/8 literally means "7 out of 8".

When reading this aloud, we read it as "seven eighths"; this is because 8 is the denominator, the "whole", and 7 is the numerator, the "part".

Often people read fractions as "numerator over denominator"; this leads to "7 over 8."

Fraction bars also represent division. Dividing this, we would have 7 divided by 8; this comes out to 0.875.

Fractions are also another way to represent ratios. In this case, 7/8 would be the same as 7 parts to 8 wholes, or the ratio of 7 to 8.

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antiseptic1488 [7]

Answer:

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Step-by-step explanation:

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The final answer wold be 152 minutes or 2.5 hours

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3 years ago

could someone out there perhaps help me? i’m so lost even though it’s probably so simple. i’ll give you brainleist :)

Temka [501]

Answer:

y= -x+7, b= sqrt(2P/a), c=3P^2-b

Step-by-step explanation:

First, make a table regarding both of the equations. You will eventually find out that both lines intersect at the point (2, 5) after you find the points on the table. From there, subtract x from both sides in the equation x + y = 2. You will get y = -x + 2. Since they said the line was parallel, find a line that has the slope of negative one. Since we know that this line intersects the point in which the first two lines intersect, we know that the y-intercept will be 7. The equation of the line would be y=-x+7.

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8 0

3 years ago

In the isosceles △ABC m∠ACB=120° and AD is an altitude to leg BC . What is the distance from D to base AB , if CD=4cm?

snow_lady [41]

If ΔACB is an isosceles triangle, then ∠A ≅ ∠B and AC ≅ CB

Since ∠C = 120° and ∠A + ∠B + ∠C = 180°, then ∠A = 30° and ∠B = 30°

Next, look at ΔADB. ∠A + ∠D + ∠B = 180°, so ∠A + 90° + 30° = 180° ⇒ ∠A = 30°

Now look at ΔADC. Since ∠A = 30° in ΔACB, and ∠A = 60° in ΔADB, then ∠A = 30° in ΔADC per angle addition postulate.

Now that we have shown that ΔADB and ΔADC are 30-60-90 triangles, we can use that formula to calculate the side lengths.

CD = 4 cm (given) so AC = 2(4 cm) = 8 cm

Since AC ≅ BC, then BC = 8 cm. Therefore, BD = 4 + 8 = 12 by segment addition postulate.

Lastly, look at ΔBHD. Since ∠B = 30° and ∠H = 90°, then ∠D = 60°. So, ΔBHD is also a 30-60-90 triangle.

BD = 12 cm, so HD = $\frac{12}{2}cm$ = 6 cm

Answer: 6 cm

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3 years ago

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ch4aika [34]

Answer:

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Step-by-step explanation:

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