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3 years ago

What 10+10+10+10+10+10+9=

Mathematics

2 answers:

GaryK [48]3 years ago

8 0

Answer:

its simple girl;;;;;

ans=69

(Ohh dear don't leave the question with this big pts!!! )

snow_lady [41]3 years ago

5 0

10+10+10+10+10+10+9=69

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The constant in the expression 8x 3 + 4x 2 – 9 is

Ket [755]

Answer : 9

Step-by-step explanation:

The answer is 9 because a constant is a number on its own, or sometimes a letter such as a, b or c to stand for a fixed number.

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3 years ago

Find the area of this composite figure step by step

xenn [34]

Step-by-step explanation:

areas of the figure = 130.25 ft ².

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3 years ago

Read 2 more answers

You are going to visit your aunt who lives 25 miles away . You have already traveled 7.7 miles. What percentage of the trip is s

8_murik_8 [283]

Answer:

30.8%

Step-by-step explanation:

To figure this out, set up an equation. 7.7/25 = x/100. This is because 7.7 miles out of 100 is equal to some percentage of 100. Then, solve by simplifying both sides and isolating the variable of x.

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6 0

3 years ago

PLEASE HELP BEFORE MIDNIGHT 2/14/22

spayn [35]

The answer is 1 and 5

3 0

2 years ago

Martin throws a ball straight up in the air. the equation h(t) = -16t^2 + 40t + 5 gives the height of the ball, in feet, t secon

Lisa [10]

Answer:

2.62 seconds

Step-by-step explanation:

Let

t ----> the time in seconds

h(t) ----> he height of the ball, in feet

we have

$h(t)=-16t^2+40t+5$

we know that

When the ball hits the ground, the height is equal to zero

$-16t^2+40t+5=0$

The formula to solve a quadratic equation of the form

$at^{2} +bt+c=0$

is equal to

$t=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$-16t^2+40t+5=0$

$a=-16\\b=40\\c=5$

substitute in the formula

$t=\frac{-40\pm\sqrt{40^{2}-4(-16)(5)}} {2(-16)}$

$t=\frac{-40\pm\sqrt{1,920}} {-32}$

$t=\frac{-40+\sqrt{1,920}} {-32}=-0.12\ sec$

$t=\frac{-40-\sqrt{1,920}} {-32}=2.62\ sec$

therefore

The solution is t=2.62 seconds

4 0

3 years ago