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Help! Math Torture! Adam is constructing an equilateral triangle. He has already constructed the line segment and arcs shown.What should Adam do for his next step?A. Place the point of the compass on point X and draw an arc, using a width for the opening of the compass that is greater than 12XR.B. Place the point of the compass on point X and draw an arc, using XR as the width for the opening of the compass.C. Use the straightedge to draw XR←→ and XS←→.D. Use the straightedge to extend RS¯¯¯¯¯ in both directions.
General
3 months ago
The general form of the equation of a circle is 7x2 + 7y2 − 28x + 42y − 35 = 0The equation of this circle in standard form isA. (x - 2)^2 + (y + 3)^2 = 5 B. (x - 2)^2 + (y + 3)^2 = 18 C. (x - 4)^2 + (y + 6)^2 = 24 D. (x + 4)^2 + (y - 6)^2 = 24 E. (x + 2)^2 + (y - 3)^2 = 35 The center of the circle is at the point __ A. (-14,21) B. (-2,3) C. (2,-3) D. (-4,6) E. (4,-6) And it's radius is ___ units. A. 5 1/2 B. 3(2 1/2) C. 2(6 1/2) D. 35 1/2
General
3 months ago
Which is the graph of the function f(x) = x2 + 2x – 6? Mark this and return
General
3 months ago
Alex is constructing a square in which two of its vertices are points X and Y. He has already used his straightedge and compass to construct the lines and arcs shown.What should Alex do for his next step?A. Use a straightedge to draw a horizontal line that contains point Z.B. Place the point of the compass on point X and draw any arc above it.C. Use a straightedge to draw XZ¯¯¯¯¯ .D. Place the point of the compass on point Y and draw an arc that intersects YZ¯¯¯¯¯ , using XY as the width of the opening of the compass.
General
3 months ago
Lisa has $7.80 to spend on some tomatoes and a loaf of bread. Tomatoes cost $1.20 per pound, and a loaf of bread costs $1.80. The inequality 1.20x + 1.80 ≤ 7.80 models this situation, where x is the number of pounds of tomatoes. Solve the inequality. How many pounds of tomatoes can Lisa buy? A. x ≤ 8; Lisa can buy 8 pounds or less of tomatoes. B. x ≥ 5; Lisa can buy 5 pounds or more of tomatoes. C. x ≤ 5; Lisa can buy 5 pounds or less of tomatoes. D. x ≥ 8; Lisa can buy 8 pounds or more of tomatoes.
General
3 months ago
PLEASE YOU CAN ANSWER NUMBER 1 OR 2 OR BOTH PLEASE I JUST NEED HELP WITH BOTH AND NO ONE WILL ANSWER MY QUESTIONS!!!!!!!! :( 1.)In two or more complete sentences, explain how to find the time it takes for a rocket following the path, h(x) = -4x 2 + 16x, to hit the ground.2.)A ball is thrown straight up from the top of a building that is 280ft high with an initial velocity of 48ft/s. The height of the object can be modeled by the equation s(t) = -16t 2 + 48t + 280.In two or more complete sentences explain how to determine the time(s) the ball is higher than the building in interval notation.
General
3 months ago
A carpenter cut a board 3 3/4 feet long to make a shelf. Before he cut the board, it was 10 1/2 feet long.How long is the remaining piece of the board?Enter your answer, as a mixed number in simplest form
General
3 months ago
the expression 12x+15x-11x can be combined because of which property A. commutative property of additionB. distributive propertyC. additive inverse propertyD. multiplicative property
General
3 months ago
Heeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeelllllllllllllllllllllllllllllllllllllllllllllllllllllllllllp!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Alex is constructing a square in which two of its vertices are points X and Y. He has already used his straightedge and compass to construct the lines and arcs shown.What should Alex do for his next step?A. Use a straightedge to draw a horizontal line that contains point Z.B. Place the point of the compass on point X and draw any arc above it.C. Use a straightedge to draw XZ¯¯¯¯¯ .D. Place the point of the compass on point Y and draw an arc that intersects YZ¯¯¯¯¯ , using XY as the width of the opening of the compass.
General
3 months ago
gas costs $2.53 per gallon in May. In September, gas cost $3.05 per gallon. What was the percent change in the cost of a gallon of gas?
General
3 months ago
The linear function graphed below represents the value of a comic book since Lucy purchased it. What was the value of the comic book when Lucy bought it?
General
3 months ago
Find the sum of a 9-term geometric sequence when the first term is 4 and the last term is 1,024 and select the correct answer below. A.682 B.2044 C.2048 D.678
General
3 months ago
I NEED THIS ANSWERED ASAP! PLEASE!!The height h (in feet) of an object t seconds after it is dropped can be modeled by the quadratic equation h = -16t^2 + h0, where h0 is the initial height of the object. Suppose a small rock dislodges from a ledge that is 255 ft above a canyon floor. Solve the equation h = -16t^2 + 255 for t, using the quadratic formula to determine the time it takes the rock to reach the canyon floor.
General
3 months ago
Keith uses 18 cherries and 3 peaches to make a pie filling. Lena uses an equivalent ratio of cherries to peaches when she makes pie filling. Can Lena use a ratio of 21 cherries to 6 peaches?
General
3 months ago
Timothy bought concrete mix for several projects. He used3.5 bags of concrete mix for a new set of stairs and 2.25 bagsof concrete mix for a garden wall. Timothy mixed345 pounds of concrete in all.a. Model with Math Write an equation that can berepresented by the bar diagram.b. Solve for y. How many pounds of concrete does each bag make?
General
3 months ago
Explain how you can use doubles when multiplying with 4 to find 4x8
General
3 months ago
1. Which statement about subatomic particles is not true? Protons and electrons have opposite charges. Neutrons have no electrical charge. Protons and neutrons have the same charge. Protons and neutrons have nearly the same mass.2.Which term describes the sum of the number of protons and neutrons in an atom?mass numbernuclear chargeatomic chargeatomic number3.Which is not part of John Dalton’s atomic theory? All elements are composed of atoms.Atoms are made up of smaller particles.Atoms of different elements have different masses.4.All atoms of the same element have the same mass.Dalton’s model of an atom is best described as _____.a scoop of chocolate chip ice creama solar systema clouda solid sphere5.Who provided the first evidence that atoms contain subatomic particles?J. J. ThomsonErnest RutherfordJohn Dalton6.Which statement about electrons and atomic orbitals is not true? An atom’s lowest energy level has only one orbital.An electron has the same amount of energy in all orbitals.An electron cloud represents all the orbitals in an atom.An orbital can contain a maximum of two electrons.7.How is heavy water different from normal water?A hydrogen atom in heavy water has an extra proton.A hydrogen atom in heavy water has an extra neutron.An oxygen atom in heavy water has an extra neutron.An oxygen atom in heavy water has an extra proton.8.What experimental evidence did Thomson use to support his hypothesis that atoms are made up of even smaller, charged particles?The glowing beam was always deflected by charged plates.Identical particles were produced no matter which metal he used.The particles all had the same mass as a hydrogen atom.9.Atoms may emit light energy when _____.electrons move to a higher energy levelprotons move to a higher energy levelprotons move to a lower energy levelelectrons move to a lower energy level10.Which term describes the region in which an electron is most likely to be found?isotopepathorbitalcloud11.According to Dalton, if 2 grams of element X combine with 4 grams of element Y to form compound XY, how many grams of element X would combine with 28 grams of element Y to form the same compound?281475612.An electron is a particle with a _____.positive charge, found outside the nucleusnegative charge, found in the nucleuspositive charge, found in the nucleusnegative charge, found outside the nucleus13.The glow of a neon light is caused by electrons emitting energy as they _____.move from higher to lower energy levelscollide with the nucleusmove from lower to higher energy levelscollide with other electrons14.To find the number of neutrons in an atom, subtract its _____.atomic number from its mass numbermass number from its atomic numberisotope number from its atomic number15.Which is the best analogy describing the location of an electron in an atomic orbital?pins on a map plotting your location every minute of a school daythe path of a bee moving from flower to flower in a gardenfree-thrown basketballs bouncing on a basketball court
General
3 months ago
2. At the grocery store checkout, you watch at the register as it rings up your purchases and coupons. The prices are as follows:$2.95$1.19$4.61$1.74$3.04$8.83$1.16− $0.75 (coupon)− $1.00 (coupon)The register gives your total bill as $21.77.(a) Round each price and coupon to the nearest dollar and then estimate the total amount of the bill. (b) Using your estimate, determine whether the total on the register is reasonable. Justify your answer.
General
3 months ago
A football team has attempted 6 running plays. The change in field position resulting from each play is shown in the table.Running Play OutcomesPlay 1 –3 yardsPlay 22 yardsPlay 3–1 yardPlay 4–2 yardsPlay 5–3 yardsPlay 61 yardWhat is the average change in field position per running play?–6 yards per play–1 yard per play0 yards per play1 yard per play
General
3 months ago
Rewrite the rational expression x^3+5x^2+3x-10/x+4 in the form q(x)+r(x)/b(x).
General
3 months ago
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