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2 years ago

What is the combined length of all the buttons longer than 1 inch?

1 answer:

5 0

Not enough data to answer that question. How many buttons are longer than 1 in and what is their length. Add all of the button’s lengths together if they are greater than one inch in length.

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Is 2/3 greater than 9/10??????? ANSWER NOW

jarptica [38.1K]

No it is not , it is less than 9/10.

7 0

3 years ago

Read 2 more answers

The time a projectile spends in the air can be modeled by the equation t² -t - 8 = 0, in which t represents the amount of time t

s2008m [1.1K]

Answer:

(t - 4)(t + 2) = 0

Step-by-step explanation:

The general formula for a quadratic expression is

y = ax² + bx + c

Your expression is

y = t² - 2t - 8 = 0

By comparison, we see that

a = 1; b = -2; c = -8

1. Find two numbers that multiply to give ac and add to give b.

In this case, find two numbers that multiply to give -8 and add to give -2.

It helps to list the factors of -8.

They are ±1, ±2, ±4, and ±8

After a little trial and error, you should find the numbers -4 and +2.

-4 × 2 = -8, and -4 + 2 = -2)

2. Rewrite the middle term with those numbers

t² -4t + 2t - 8 = 0

3. Factor the first and last pairs of terms separately

t(t - 4) +2(t - 4) = 0

4. Separate the common factor

The common factor is t - 4.

(t - 4)(t + 2) = 0

8 0

3 years ago

A class consists of 55% bots and 45% girls. It is observed that 25% of the class are boys and scored an A on the test, and 35% o

oksian1 [2.3K]

Answer:

0.1575

Step-by-step explanation:

Probability of picking a girl is 0.45 and probability of a girl scoring A is 0.35.

Therefore probability of a girl scoring A is 0.45*0.35=0.1575

8 0

3 years ago

I need help. what is the slope?<br> (The bottom one says : (-1, -6)

ch4aika [34]

Answer:

I believe it would be -11/4.

8 0

3 years ago

Read 2 more answers

Can anyone help me?pls

Mama L [17]

Answer/Step-by-step explanation:

Given:

C = right angle = 90°

BC = a = ?

AB = c = 12

AC = b = 9

Required:

a, <A, and <B

Solution:

✔️Find a using Pythagorean Theorem:

a = √(c² - b²)

a = √12² - 9²) = √63

a = 7.93725393 = 8 (nearest whole number)

✔️Find A by applying trigonometric ratio:

Thus,

Reference angle = A

Hypotenuse = 12

Adjacent = 9

Therefore,

$cos(A) = \frac{adj}{hyp} = \frac{9}{12}$

$cos(A) = 0.75$

$A = cos^{-1}(0.75)$

m<A = 41° (nearest whole number)

✔️Find B:

m<B = 180 - (90 + 41) (sum of interior angles of triangle)

m<B = 49°

8 0

3 years ago